2008
City of
Los Angeles
Volume
Based on the 2007 CBC and 2006 IBC
INTERNATIONAL
CDOECOUNdr
2008 City of Los Angeles Building Code — Volume 2
(Based on the 2007 CBC and the 2006 IBC)
First Printing
ISBN-13: 978-1-58001-644-5
Publication Date: January 2008
COPYRIGHT© 2008
by
INTERNATIONAL CODE COUNCIL, INC.
and
CALIFORNIA BUILDING STANDARDS COMMISSION
ALL RIGHTS RESERVED. This publication by the International Code Council, Inc (ICC) and the California Building Standards
Commission (CBSC) is a jointly copyrighted work. The California Building Standards Commission has copyright ownership of tjj
California Building Standards Commission modifications to the Uniform Codes and ICC has copyright ownership of the Intern*
tional Codes. Without advance written permission from the copyright owner, no part of this book may be reproduced, distributed or~
transmitted in any form or by any means, including, without limitation, electronic, optical or mechanical means (by way of example
and not limitation, photocopying, or recording by or in an information storage retrieval system). For information on permission to
copy material exceeding fair use, please contact: Publications, 4051 West Flossmoor Road, Country Club Hills, IL 60478. Phone
1-888-ICC-SAFE (422-7233). ^^
Trademarks: "International Code Council," the "International Code Council" logo and the "International Building Code" are tracuHp
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PRINTED IN THE U.S.A.
REVISION RECORD FOR THE
CITY OF LOS ANGELES
Effective Date January, 2008
By starting with a loose-leaf copy of the 2007 California Building Code, Volume 2, and substituting the Los
Angeles pages (yellow), the user will have a complete 2008 City of Los Angeles Building Code, Volume 2, in cor-
rect numerical sequence. It is suggested that original 2007 GBC pages that have been removed and replaced by Los
Angeles pages be retained in a separate file for possible future reference.
VOLUME 2
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105 through 124
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129 through 132
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293 through 294
309 through 310
313 through 314
317 through 318
323 through 330
333 through 334
355 through 356
413 through 414
423 through 424
427 through 428
527 through 528
531 through 534
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609 through 702
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Title page and Copyright Page
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23R through 24
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97R through 102fR
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DBS
DEFARTfflENT OF BUlimNG AND SAFETY
CITY OF LOS ANGELES
ANTONIO R. VILLARAIGOSA, Mayor
LOS ANGELES CITY COUNCIL
PLANNING AND LAND USE MANAGEMENT COMMITTEE
ED REYES, Chair
JOSE HUIZAR, Member
JACK WEISS, Member
DEPARTMENT OF BUILDING AND SAFETY
ANDREW A. ADELMAN, RE. - General Manager
BOARD OF BUILDING AND SAFETY COMMISSIONERS
MARSHA L. BROWN, President
PEDRO BIRBA, Vice-President
VAN AMBATIELOS, RE.
HELENA JUBANY
ELENORE A. WILLIAMS
MAIN OFFICE"
201 North Figueroa Street, Los Angeles 90012
Telephone: 1-888-LA4-BUILD
1-888-524-2845 (for inside L.A. County)
1-213-977-6941 (for outside of L.A. County)
Internet: http://www.ladbs.org
CONSTRUCTION SERVICES COUNTERS:
Metro District 201 North Figueroa Street, 4th Floor, Los Angeles 90012
San Fernando Valley District 6262 Van Nuys Boulevard, 2nd Hoor Van Nuys 91401
San Pedro District 638 South Beacon Street, 2nd Floor, San Pedro 90731
South Los Angeles District 8475 South Vermont Avenue, 2nd Floor, Los Angeles 90044
West Los Angeles District 1828 Sawtelle Boulevard, 2nd Floor, Los Angeles 90025
2008 CITY OF LOS ANGELES BUILDING CODE ill
%Jb ^^I'^^ ,^^Q^^|.dKE^#
Polblisiied Codes:;
2008 Edition of the City of Los Angeles Building Code, Volumes 1 and 2
2008 Edition of the City of Los Angeles Electrical Code
2008 Edition of the City of Los Angeles Plumbing Code
2008 Edition of the City of Los Angeles Mechanical Code
City of Los Angeles Municipal Code
City of Los Angeles Planning and Zoning Code
California Building Standards Code, Parts 7, 8, and 10
2008 CITY OF LOS ANGELES BUILDING CODE
DBS
DEPARTMENT OF BUILDING AND SAFETY
CITY OF LOS ANGELES
DEPARTMENT OF BUILDING AND SAFETY
The mission of the Department of Building and Safety is to protect the hves and safety of the residents and visitors of the City of
Los Angeles, preserve the City's quality of life, and contribute to the City's economic development. This is accomplished through
implementation of the Zoning, Building, Plumbing, Mechanical, and Electrical Codes, as well as, the State Energy and Disabled
Access regulations, and State and local laws for construction and maintenance of commercial, industrial and residential buildings.
The Department of Building and Safety is the largest organization of its kind in the United States with a dedicated staff of more
than 870 employees. The Department provides service to a population of more than 3.8 million people in a metropolitan area of
more than 470 square miles with its 16 offices located throughout the City.
AWARDS AND COMMENDATIONS:
The recent innovations and improvements in the City of Los Angeles Department of Building and Safety have been recognized and
acknowledged by a number of local, state and national organizations. Some of these recent awards and commendations are:
Building Department of the Year: The Department was named "The 1999 Building Department of the Year" by the Califor-
nia Building Officials (CALBO) in March 1999. The Department was recognized for demonstrating excellence and achieving
success in innovation, community service, education, code development and customer service.
Innovations In American Government Award: In May 2002, the Department was awarded the prestigious "Innovations In
American Government Award" from Harvard University's John F. Kennedy School of Government for its use of technology
and performance measurements to increase productivity and customer service in a large governmental organization.
Grand Prize for Productivity and Quality: In September 1 999, the Los Angeles County Quality and Productivity Commis-
sion awarded its "Grand Prize for Productivity and Quality" to the City of Los Angeles Department of Building and Safety
and the County of Los Angeles Building Division for their tremendous innovation in creating and developing the Los Angeles
Regional Uniform Code Program (LARUCP). This program creates regional uniformity and reduces the number of local
technical amendments to model codes, including the Uniform Building Code, Uniform Plumbing Code, Uniform Mechanical
Code and the National Electrical Code, as amended by the State of California, for adoption by jurisdictions in the greater Los
Angeles region.
National Streamlining Achievement Award: The National Conference of States on Building Codes and Standards, Inc.
(NCS/BCS) in April 1999 announced that City of Los Angeles was the 1999 recipient of the "Streamlining Achievement
Award." The Department was recognized for its innovation in its Case Management Unit, which assists customers by guiding
them through City's regulatory agencies, policies and procedures in a timely and efficient manner.
Building Official of the Year: In March 2000, Department General Manager, Andrew A. Adelman was presented with this
award by California Building Officials, which represents all Building Officials in the State of California, for his extraordinary
accomplishments in the City of Los Angeles and in helping others in the building code enforcement profession.
Los Angeles Downtown Breakfast Club's Rose Award: The Department received the Rose Award from the Downtown
Breakfast Club in April of 1999 for its outstanding contribution to the enhancement of the City's business climate and eco-
nomic development, which includes the Department's One Stop Construction Service Center and streamlining the develop-
ment review process.
Local Government Official of the Year - West Region: This award was given to the Department of Building and Safety
from the Building Industry Association in February 2000 in recognition of the improvement and innovations in development
review and approval that have been implemented by the Department of Building and Safety.
The Westside Prize 2000 and Westside Prize 2002: In June 2000, the General Manager of the Department of Building and
Safety, Andrew A. Adelman, received a "Special Award" from the Westside Urban Forum for the outstanding work in creat-
ing a new culture of customer service in the Department. Then, in June 2002, the City of Los Angeles Department of Building
and Safety was recognized again by the Westside Urban Forum for the e-Permit project, which allows the Department of
Building and Safety customers to apply for, pay for and receive express permits via the internet or a fax machine 24 hours a
day, seven days a week.
2008 CITY OF LOS ANGELES BUILDING CODE v
Treasure of Central CMy Association: The Los Angeles Central City Association on January 2002 gave an award of "Trea-
sure of Central City Association" to the Department of Building and Safety for outstanding contributions in community ser-
vice and for promoting the health and vitality of the City of Los Angeles.
Puiblic Service Award: In June 2000, the Department of Building and Safety was recognized by the Structural Engineers
Association of Southern California for its efforts in reorganizing and improving the Department.
Leadership ie Engineering for Revitalizing Key Municipal Services: This award was given to the Department in February
2000 based on the nominations from Consulting Engineers and Land Surveyors of California in recognition of the Depart-
ment's outstanding contributions to the advancement of the Engineering Profession.
Special Recognition Award: In October 2001, Andrew Adelman, General Manager of the Department of Building and
Safety was given this award by the Los Angeles Area Chamber of Commerce and Construction Industry Awards Committee
in honor of the outstanding contribution to local construction in the community.
Award for Dedicated Services to the Los Angeles Regional Uniform Code Program (LARUCP): In June 2003, the
Department of Building and Safety was recognized by the Structural Engineers Association of Southern California for its
efforts in participating with the Engineering Community of Los Angeles with the development of Structural and Seismic
Design standards for the construction of buildings.
Growing With Oiir Cities and Communities Award: In October 2002, the Andrew Adelman, General Manager of the
Department of Building and Safety, was given this award from the Asian-American Architects/ Engineers Association for
significant achievement in the community.
City of Los Angeles Productivity Improvement Award: The Department has received 24 Productivity Improvement
Awards from the City of Los Angeles Quality and Productivity Improvement Conunission from 1997 to 2005. The 24 Pro-
ductivity Improvement Awards are as follows: Building Permit Clearance Handbook, Internet Request for Inspection Sys-
tem, Code Enforcement Information System (CEIS), Inspection Bureau Performance Report, Van Nuys District Office One
Stop Construction Services Center, Streamlining the Residential Property Report Process, Customer Call Center, e-Permits,
Streamlining Over-the-Counter Building Permit Process, Q-Matic Customer Queuing System, Code Enforcement Bureau,
Proactive Code Enforcement Program, Los Angeles Regional Uniform Code Program, LADBS Information Bulletins Pro-
gram, Automated Inspection Request System, Centralized Request for Inspections, Vacant Building Abatement Program,
Citywide Nuisance Abatement Program, Delivering Guaranteed & Responsive Customer Service, Case Management Unit,
Appointment Plan Check, Automated Certificate of Occupancy System (ACOS), Fire Life Safety Testing Program, and
Alternative Maritime Power (AMP) Program.
2008 CITY OF LOS ANGELES BUILDING CODE
FUNCTIONS AND RESPONSIBILITIES OF THE DEPARTMENT
A Few Notewiorthy Facts about the Department of Building arid Safety:
° Provides services to Los Angeles City residents through 16 different offices located throughout the City
° Serves over 500,000 walk-in customers annually
° Responds to over 822,000 customer phone calls annually
° Issues over 139,000 permits with a total valuation of over $5.3 billion annually
° Conducts over 900,000 inspections annually
° Issues over 16,900 trade licenses for 16 different occupations annually
° Provides information for over 80,000 addresses annually
° Responds to over 43,000 Code Enforcement service requests annually
° Brings back over 36,000 properties to compliance annually
° Abate over 640 nuisance and abandoned buildings annually
° Reviews and approves plans for over 50,000 projects annually
The Responsibilities of the Department of Building and Safety Are Assigned to Four Bureaus:
The Engineering Bureau is primarily responsible for the plan checking, report approval, and permit issuance related to
building! projects within privately owned property in the City of Los Angeles. In the course of carrying out these responsibih-
ties, the Engineering Bureau enforces the structural, building, plumbing, mechanical, electrical, grading and zoning regula-
tions of the City. In addition, the Engineering Bureau is responsible for reviewing applications for building, plumbing,
mechanical and electrical product approvals through its Electrical and Mechanical Test Laboratories.
The Inspection Bureau is responsible for inspection of all construction activities for new and existing buildings, plumbing,
mechanical, electrical, elevator and pressure vessel systems, the enforcement of applicable State and local laws relating to
existing buildings and property, and the administration of various special programs mandated by the City Council.
The Code Enforcement Bureau was created as a part of a reorganization of code enforcement functions in 1999. This
Bureau is responsible for the enforcement of Municipal Code requirements for all existing buildings in the City of Los
Angeles, except rental multi-family dwellings. The Bureau handles complaints, citations, processing of vacant and nuisance
buildings for repair or demolition, Signs, Vehicle Establishment Inspection Program and Proactive Code Enforcement Pro-
gram among others.
The Resource Management Bureau is responsible for the direction and coordination of administrative and financial pro-
jects, systems development, training and acts as the emergency disaster coordinator for all Department operations.
The Board of Building and Safety Commissioners:
The Board of Building and Safety Commissioners is a five-meniber board of citizens residing in the City and appointed by the
Mayor and confirmed by the City Council. The Commission has the authority to hear and act upon appeals from determinations,
orders, or actions of the Department or the Superintendent of Buildiiig, pertaining to enforcement of the codes under the jurisdiction
of the Department. In addition, the Commission conducts public hearings, as needed, regarding procedures, new codes and various
functions of the Department. Finally, the Commission acts in an advisory capacity to the Department and the Superintendent of
Building.
2008 CITY OF LOS ANGELES BUILDING CODE
EFFECTIVE USE OF THE
CITY OF LOS ANGELES BUILDING CODE
The City of Los Angeles Building Code was established in 1 889 with the appointment of the first superintendent of building. In
1923, the first of 18 volumes of the Los Angeles Annual Builder's Guide was published. This guide is a handbook for architects and
builders and contains a complete cross index of the Los Angeles building ordinances, electrical ordinances and supplementary rul-
ings and the California State Housing Act.
After 1 936, the building regulations of Chapter IX of the Los Angeles Municipal Code were established by the passage of Ordi-
nance No. 77,000. But it was 1943 when Ordinance No. 87,000 amended in its entirety Article 1 of Chapter IX of the Los Angeles
Municipal Code and a new Los Angeles City Building Code was published. This edition of the Los Angeles Municipal Code estab-
lished the format of the different divisions and sections relevant to the building regulations in the city.
Through the intervening years, the code has been amended and revised regularly to keep pace with the ever-changing technology
of the construction industry and new and proven concepts of structural design.
The State of California has mandated the City of Los Angeles to enforce the California Building Code (CBC). The City Council
for the City of Los Angeles has passed Ordinance Number 179,324 (operative January 1 , 2008) to amend Article 1 of Chapter IX of
the Los Angeles Municipal Code and to adopt by reference the 2007 edition of the California Building Code (CBC) and hereinafter
shall be called the 2008 edition of the City of Los Angeles Building Code.
Chapter 1 is the general administrative provisions of the City of Los Angeles and replaces Chapter 1 of the CBC.
Chapters 2 through 35 are the general provisions of the California Building Code.
Chapters 61 through 72 have been added to the code to provide special requirements of the City of Los Angeles.
Chapters 81 through 91 are the city code requirements of existing buildings and structures.
Chapters 92 through 96 are the city standard for voluntary earthquake hazard reduction standards for existing buildings.
At the end of Volume 2 of the Building Code, "Excerpts" has been added for additional reference to the industry. Excerpts are the
accumulation of related Los Angeles City codes and municipal and administrative code sections pertaining to Department of Build-
ing and Safety.
LA
L^ This symbol indicates that a City of Los Angeles amendment has been added to the 2007 California Building Code.
LA
[For HCD 1] This italicized notation is used to identify which state agency has amended a section of the IBC.
For a complete listing of state agencies, refer to CBC Section 101.17 et seq.
w
viii 2008 CITY OF LOS ANGELES BUILDING CODE
TABLE OF CONTENTS
•
VOLUME 1
CHAPTER 1 ADMINISTRATION 3R
Section
101 Title, Purpose and Scope 3R
102 Unsafe Buildings or Structures 9R
103 Violations 9R
104 Organization and Enforcement 9R
105 Appeals lOR
106 Permits 14R
107 Fees 20aR
108 Department of Housing Development 3R
108 Inspection 20gR
109 Division of State Architect 4R
109 Certificate of Occupancy 20iR
1 10 Office of Statewide Health Planning
and Development 5R
110 Responsibility of Permittee . . 20jR
1 1 1 Office of the Fire Marshal 6R
11 1 Code Revision 20jR
1 12 Grading Certificate 20jR
CHAPTER 2 DEFINITIONS 29R
Section
201 General 29R
202 Definitions 29R
CHAPTER 3 USE AND OCCUPANCY
CLASSIFICATION .............. 49
Section
301 General .49
302 Classification 49
303 Assembly Group A 49
304 Business Group B 50
305 Educational Group E 50
306 Factory Group F 50
307 High-hazard Group H 51
308 Institutional Group I 59
309 Mercantile Group M 60
310 Residential Group R 61
311 Storage Group S 65
312 Utility and Miscellaneous Group U 65
CHAPTER 4 SPECIAL DETAILED
REQUIREMENTS BASED ON
USE AND OCCUPANCY 71
Section
401 Scope 71
402 Covered Mall Buildings 71
403 High-rise Buildings 74
404 Atriums 76
405 Underground Buildings 76
406 Motor- vehicle-related Occupancies 77
407 Group 1-2 81
408 Group 1-3 84
409 Motion Picture Projection Rooms 86
410 Stages and Platforms 87
411 Special Amusement Buildings 88
412 Aircraft-related Occupancies 89
413 Combustible Storage 91
414 Hazardous Materials . 91
415 Groups H-1, H-2, H-3, H-4 and H-5 95
416 Application of Flammable Finishes 108
417 Drying Rooms 108
418 Organic Coatings 108
419 Group I-l, R-1, R-2, R-3, R-3.1, R-4 109
420 Hydrogen Cutoff Rooms 109
421 Reserved 110
422 Reserved 110
423 Reserved. 110
424 Reserved 110
425 Special Provisions for Licensed
24-Hour Care Facilities in a Group I-l,
R-3.1 or R-4 occupancy [SFM] 110
426 Group 1-4 [SFM] 113
427 Reserved 1 14
428 Reserved. . 1 14
429 Reserved 114
430 Horse Racing Stables [SFM] 114
431 Pet Kennels [SFM] 114
432 Combustion Engines and
Gas Turbines [SFM] 114
433 Fixed Guideway Transit Systems [SFM] 114
434 Explosives [SFM] 118
435 Reserved 121
2008 CITY OF LOS ANGELES BUILDING CODE
TABLE OF CONTENTS
436 Winery Caves [SFM] 121
437 Reserved 122
438 Reserved 122
439 Public Libraries [SL & SFM] : . 122
440 Group C [SFM] 123
441 Reserved 125
442 Group E [SFM] 125
443 Group L [SFM] 126
444 Reserved 129
445 Large-family Day Care Homes [SFM] 129
CHAPTER 5 GENERAL BUILDING
HEIGHTS AND AREAS 133
Section
501 General 133
502 Definitions 133
503 General Height and Area Limitations 133
504 Height 135
505 Mezzanines 135
506 Area Modifications 136
507 Unlimited Area Buildings 137
508 Mixed Use and Occupancy 139
509 Special Provisions 140
CHAPTER 6 TYPES OF CONSTRUCTION ... 147
Section
601 General 147
602 Construction Classification 147
603 Combustible Material in Type I and II
Construction 148
CHAPTER 7 FIRE-RESISTANCE=RATED
CONSTRUCTION 153
Section
701 General 153
702 Definitions 153
703 Fire-resistance Ratings and Fire Tests 154
704 Exterior Walls 155
705 Fire Walls 158
706 Fire Barriers 160
707 Shaft Enclosures 162
708 Fire Partitions 164
709 Smoke Barriers : 165
710 Smoke Partitions . 166
711 Horizontal Assemblies 166
712 Penetrations 167
713 Fire-resistant Joint Systems 169
714 Fire-resistance Rating of
Structural Members 170
715 Opening Protectives 171
716 Ducts and Air Transfer Openings 175
717 Concealed Spaces 178
718 Fire-resistance Requirements for Plaster 180
719 Thermal- and Sound-insulating Materials .... 181
720 Prescriptive Fire Resistance 181
721 Calculated Fire Resistance 202
CHAPTER 7A MATERIALS AND
CONSTRUCTION METHODS
FOR EXTERIOR WILDFIRE
EXPOSURE 235
Section
701 A ' Scope, Purpose and Application 235
702A Definitions 235
703A Standards of Quality 236
704A Materials, Systems and
Methods of Construction 236
CHAPTER 8 INTERIOR FINISHES 241
Section
801 General 241
802 Definitions 241
803 Wall and Ceiling Finishes 241
804 Interior Floor Finish 243
805 Combustible Materials in Types I
and II Construction 244
806 Decorative Materials and Trim 244
CHAPTER 9 FIRE PROTECTION
SYSTEMS 251
Section
901 General 251
902 Definitions 251
903 Automatic Sprinkler Systems 254
904 Alternative Automatic
Fire-extinguishing Systems 260
905 Standpipe Systems .261
906 Portable Fire Extinguishers 264
907 Fire Alarm and Detection Systems 264
908 Emergency Alarm Systems 278
909 Smoke Control Systems 279R
2008 CITY OF LOS ANGELES BUILDING CODE
TABLE OF CONTENTS
910 Smoke and Heat Vents 285
911 Fire Command Center 287
912 Fire Department Connections 288
CHAPTER 10 MEANS OF EGRESS 293
Section
1001 Administration 293
1002 Definitions 293
1003 General Means of Egress 294
1004 Occupant Load 296
1005 Egress Width 298
1006 Means of Egress Illumination 298
1007 Accessible Means of Egress 299
1008 Doors, Gates and Turnstiles . 301
1009 Stairways 306
1010 Ramps 309
1011 Exit Signs 310
1012 Handrails 311
1013 Guards : 312
1014 Exit Access 313
1015 Exit and Exit Access Doorways 315
1016 Exit Access Travel Distance 316
1017 Corridors 317
1018 Exits 318
1019 Number of Exits and Continuity 318
1020 Vertical Exit Enclosures 319
1021 Exit Passageways 321
1022 Horizontal Exits 322
1023 Exterior Exit Ramps and Stairways 322
1024 Exit Discharge 323
1025 Assembly 324
1026 Emergency Escape and Rescue 329
CHAPTER 11 RESERVED 331
CHAPTER 11 A HOUSING ACCESSIBILITY .... 335
Section
1 101 A Application 335
1102A Building Accessibility 335
1103A Design and Construction 336
1 104A Group R Occupancies 336
1 105A Group U Occupancies 336
1 106A Site and Building Characteristics 337
1 107A Definitions .337
2008 CITY OF LOS ANGELES BUILDING CODE
1 108 A General Requirements for
Accessible Parking and
Exterior Routes of Travel 339
1 109A Parking Facilities 340
1 1 lOA Exterior Routes of Travel 341
llllA Changes in Level on Accessible Routes 342
1112A Curb Ramps on Accessible Routes 342
1 1 13 A Walks and Sidewalks on an
Accessible Route 343
1 1 14 A Exterior Ramps and
Landings on Accessible Routes 343
1115A Exterior Stairways Along
Accessible Routes 345
1 1 16A Hazards on Accessible Routes 345
1117A General Requirements for
Accessible Entrances, Exits,
Interior Routes of Travel and
Facility Accessibility 346
1 1 18A Egress and Areas of Refuge 346
1 1 19A Interior Routes of Travel 346
1 120A Interior Accessible Routes 347
1 121 A Changes in Level on Accessible Routes 347
1 122 A Interior Ramps and Landings on
Accessible Routes 347
1123A Interior Stairways Along
Accessible Routes 348
11 24 A Elevators and Special Access
(Wheelchair) Lifts 349
1 125 A Hazards on Accessible Routes 351
1126A Doors 351
1 127A Common Use Facilities 352
1128A Covered Dwelling Units 358
1129A Reserved 359
1 130A Accessible Route Within
Covered Multifamily Dwelling Units 359
1 131 A Changes in Level on Accessible Routes 359
1 132A Doors 359
1 133A Kitchens 360
1 134A Bathing and Toilet Facilities ! . . 361
1 135 A Laundry Rooms 364
11 36 A Electrical Receptacle,
Switch and Control Heights 364
1 137 A Other Features and Facilities 365
1 138A Reserved 365
11 39 A Accessible Drinking Fountains 365
1 140A Accessible Telephones 365
1141 A Accessible Swimming Pools 366
xi
TABLE OF CONTENTS
1142A Electrical Receptacle, Switch and
Control Heights 367
1143A Signage 367
1 144A Reserved 368
1145A Reserved 368
1146A Reserved 368
1 147A Reserved 368
1148A Reserved 368
1 149A Reserved 368
1 150A Site Impracticality Tests 368
CHAPTER IIB ACCESSIBILITY TO
PUBLIC BUILDINGS,
PUBLIC ACCOMMODATIONS,
COMMERCIAL BUILDINGS
AND PUBLICLY FUNDED
HOUSING. ...... o ............. 423
Section
IIOIB Scope 423
1 102B Definitions .423
1103B Building Accessibility 426
1104B Accessibility for Group A Occupancies 427
1105B Accessibility for Group B Occupancies 430
1 106B Accessibility for Group E Occupancies 431
1 107B Factories and Warehouses 432
1108B Accessibility for Group H Occupancies 432
1109B Accessibility for Group I Occupancies ...... 432
lllOB Accessibility for Group M Occupancies 433
11 1 IB Accessibility for Group R Occupancies 434
1112B Reserved 437
1113B Reserved 437
1 1 14B Facility Accessibility 437
1 1 15B Bathing and Toilet Facilities
(Sanitary Facilities) 438
1 1 16B Elevators and Special Access
(Wheelchair) Lifts 444
1 1 17B Other Building Components 447
1 1 18B Space Allowance and Reach Ranges 454
1 1 19B Special Standards of Accessibility for
Buildings with Historical Significance .... 454
1 120B Floor and Levels 454
1 121B Transportation Facilities 454
1 122B Fixed or Built-in Seating,
Tables and Counters 458
1 123B Access to Employee Areas 458
1 124B Ground and Floor Surfaces 459
1125B Storage 459
1126B Vending Machines and Other Equipment 459
1 127B Exterior Routes of Travel 460
1 128B Pedestrian Grade Separations
(Overpasses and Underpasses) 461
1 129B Accessible Parking Required 461
1 BOB Parking Structures 463
1 13 IB Passenger Drop-off and Loading Zones 463
1 132B Outdoor Occupancies 463
1 1 33B General Accessibility for
Entrances, Exits and Paths of Travel 465
1134B Accessibility for Existing Buildings 472
1135B Historic Preservation —
Special Standards of
Accessibility for Buildings with
Historical Significance 473
CHAPTER lie STANDARDS FOR CARD
READERS AT GASOLINE
FUEL-DISPENSING
FACILITIES 541
Section
1 1 1 C C ard-reader Devices at
Fuel-dispensing Equipment 541
1 102C Application 541
1103C Number of Accessible
Card-reading Devices Required 541
1 104C Required Features 541
1 105C Protection of Dispensers
Mounted at Grade 542
CHAPTER 12 INTERIOR ENVIRONMENT .... 547
Section
1201 General 547
1202 Definitions 547
1203 Ventilation 547
1204 Temperature Control 548
1205 Lighting 549
1206 Yards or Courts 549
1207 Sound Transmission 550R
1208 Interior Space Dimensions 552R
1209 Access to Unoccupied Spaces 553
1210 Surrounding Materials 553
1211 Garage Door Springs 553
1212 Reserved 554
1213 Reserved 554
1214 Reserved 554
1215 Reserved 554
1216 Reserved 554
XII
2008 CITY OF LOS ANGELES BUILDING CODE
TABLE OF CONTENTS
1217 Reserved 554
1218 Reserved : 554
1219 Reserved ' 554
1220 Reserved 554
1221 Reserved 554
1222 Reserved 554
1223 Reserved 554
1224 Hospitals 555
1225 Skilled Nursing and
Intermediate-care Facilities 581
1226 Clinics 586
1227 Correctional Treatment Centers . . 589
1228 Reserved 594
1229 Reserved 594
1230 Minimum Standards for
Juvenile Facilities 594
1231 Local Detention 598
1232 Reserved 603
1233 Reserved 603
1234 Reserved 604
1235 Sanitary Control of Shellfish
(Plants and Operations) 604
1236 Laboratory Animal Quarters 604
1237 Wild Animal Quarantine Facilities 604
1238 Reserved 605
1239 Reserved 605
1240 Meat and Poultry Processing Plants 605
1241 Collection Centers and Facilities 606
1242 Renderers 607
1243 Horsemeat and Pet Food Establishments 607
1244 Reserved 608
1245 Reserved 608
1246 Reserved 608
1247 Reserved. 608
1248 Reserved 608
1249 Reserved 608
1250 Pharmacies 608
1251 Veterinary Facilities 608
1252 Barber Colleges and Shops 609
1253 Schools of Cosmetology,
Cosmetological Establishments and
Satellite Classrooms 609
1254 Acupuncture Offices 609
CHAPTER 13 ENERGY CONSERVATION . . . 611R
Section
1300 General 61 IR
1301 Solar Energy Collectors 61 IR
CHAPTER 14 EXTERIOR WALLS ! . 615
Section
1401 General 615
1402 Definitions . 615
1403 Performance Requirements 615
1404 Materials 616R
1405 Installation of Wall Coverings 616R
1406 Combustible Materials on the
■ Exterior Side of Exterior Walls 620
1407 Metal Composite Materials (MCM) 621
1408 Additional Requirements for
Anchored and Adhered Veneer 622
CHAPTER 15 ROOF ASSEMBLIES AND
ROOFTOP STRUCTURES 625
Section
1501 General 625
1502 Definitions 625
1503 Weather Protection 625
1504 Performance Requirements 626
1505 Fire Classification 627R
1506 Materials 628
1507 Requirements for Roof Coverings 628
1508 Roof Insulation 637
1509 Rooftop Structures 637
1510 Reroofing 638R
1511 Seismic Anchorage of
Slate Shingle, Clay and
Concrete Tile Roof Coverings 639R
INDEX 641
HISTORY NOTE 673
VOLUME 2
CHAPTER 16 STRUCTURAL DESIGN 3
Section
1601 General 3
1602 Definitions and Notations 3
2008 CITY OF LOS ANGELES BUILDING CODE
XIII
TABLE OF CONTEMTS
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
Section
1601A
1602 A
1603A
1604 A
1605 A
1606 A
1607 A
1608 A
1609 A
1610A
1611 A
1612A
1613A
1614A
Section
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
xiv
Construction Documents 4
General Design Requirements 5
Load Combinations 8
Dead Loads 9
Live Loads 10
Snow Loads 15
Wind Loads 15
Soil Lateral Loads 25
Rain Loads 25
Flood Loads 26
Earthquake Loads 28
'ER 16A STRUCTURAL DESIGN ......... 53
General 53
Definitions and Notations 53
Construction Documents 55
General Design Requirements 56
Load Combinations 59
Dead Loads 60
Live Loads 60
Snow Loads 66
Wind Loads 66
Soil Lateral Loads 71
Rain Loads 71
Flood Loads 72
Earthquake Loads 74
Modifications to ASCE 7 78
7 STRUCTURAL TESTS AND
SPECIAL INSPECTIONS. ...... 87R
General 87R
Definitions 87R
Approvals 88R
Special Inspections 88R
Statement of Special Inspections 98R
Contractor Responsibility 99R
Special Inspections for Seismic Resistance . . 99R
Structural Testing for Seismic Resistance. . . lOlR
Structural Observations 102R
Design Strengths of Materials 102R
Alternative Test Procedure 102R
Test Safe Load 102R
In-situ Load Tests 102R
1714 Preconstruction Load Tests 102aR
1715 Material and Test Standards 102bR
1716 Certified Licensed Contractors 102bR
1717 Certified Security Bar Installer 102dR
1718 Prefabricated Construction 102eR
CHAPTER 17A STRUCTURAL TESTS AND
SPECIAL INSPECTIONS 105
Section
1701 A General 105
1702A Definifions 105
1703A Approvals 106
1704A Special Inspecdons 107
1705 A Statement of Special Inspections 117
1706 A Contractor Responsibility 118
1707A Special Inspections for Seismic Resistance ... 118
1708 A Structural Testing for Seismic Resistance .... 1 19
1709A Structural Observafions 120
1710A Design Strengths of Materials 120
1711 A Alternative Test Procedure 120
1712A Test Safe Load ; 120
1713A In-situ Load Tests 120
1714A Preconstruction Load Tests 121
1715A Material and Test Standards 122
CHAPTER 18 SOILS AND FOUNDATIONS . . 125R
Section
1801 General 125R
1802 Foundation and Soils Investigations 125R
1803 Excavafion, Grading and Fill 128
1804 Allowable Load-bearing Values of Soils 129R
1805 Footings and Foundations 129R
1806 Retaining Walls 140
1807 Dampproofing and Waterproofing 140
1808 Pier and Pile Foundadons 141R
1809 Driven Pile Foundadons 146
1810 Cast-in-place Concrete Pile Foundations 149
1811 Composite Piles 153
1812 Pier Foundations 153
CHAPTER ISA SOILS AND FOUNDATIONS .... 157
Section
1801A General 157
1802A Foundation and Soils Investigations 157
1803 A Excavadon, Grading and Fill 160
2008 CITY OF LOS ANGELES BUILDING CODE
TABLE OF CONTENTS
1804A Allowable Load-bearing Values of Soils 161
1805A Footings and Foundations 161
1806 A Retaining Walls and Cantilever Walls 165
1807 A Dampproofing and Waterproofing 166
1808 A Pier and Pile Foundations 167
1809A Driven Pile Foundations . . 172
1810A Cast-in-place Concrete Pile Foundations 175
181 lA Composite Piles 178
1812A Pier Foundations .179
CHAPTER 19 CONCRETE. 183
Section
1901 General 183
1902 Definitions 183
1903 Specifications for Tests and Materials 183
1904 Durability Requirements 183
1905 Concrete Quality, Mixing and Placing 185
1906 Formwork, Embedded Pipes and
Construction Joints 185
1907 Details of Reinforcement 186
1908 Modifications to ACI 318 186
1909 Structural Plain Concrete 189R
1910 Minimum Slab Provisions 190
1911 Anchorage to Concrete— Allowable
Stress Design 190
1912 Anchorage to Concrete — Strength Design. ... 191
1913 Shotcrete 191
1914 Reinforced Gypsum Concrete 192
1915 Concrete-filled Pipe Columns 192
CHAPTER 19A CONCRETE 197
Section
1902A General 197
1902A Definitions 197
1903 A Specifications for Tests and Materials 197
1904A Durability Requirements 198
1905 A Concrete Quality, Mixing and Placing 200
1906 A Formwork, Embedded Pipes and
Construction Joints 201
1907A Details of Reinforcement 201
1908A Modifications to ACI 318 202
1909 A Structural Plain Concrete 208
1910A Minimum Slab Provisions 208
191 1 A Anchorage to Concrete —
Allowable Stress Design 208
2008 CITY OF LOS ANGELES BUILDING CODE
1912A Anchorage to Concrete —
Strength Design 209
1913A Shotcrete. 209
1914A Reinforced Gypsum Concrete 211
19 15 A Concrete-filled Pipe Columns 211
1916A Concrete Testing 211
1917A Existing Concrete Structures 212
CHAPTER 20 ALUMINUM 215
Section
2001 General 215
2002 Materials. 215
2003 Inspection 215
CHAPTER 21 MASONRY 219
Section
2101 General 219
2102 Definitions and Notations 219
2103 Masonry Construction Materials 223
2104 Construction 226
2105 Quality Assurance 229
2106. Seismic Design 230
2107 Allowable Stress Design 232
2108 Strength Design of Masonry 232
2109 Empirical Design of Masonry 233
21 10 Glass Unit Masonry 239
2111 Masonry Fireplaces 241
2112 Masonry Heaters 243R
2113 Masonry Chimneys 243R
CHAPTER 21A MASONRY 251
Section
2101A General 251
2102A Definitions and Notations 251
2 103 A Masonry Construction Materials 255
2104A Construction 258
2105A Quality Assurance 263
2106A Seismic Design 265
2107A Allowable Stress Design .267
2 108 A Strength Design of Masonry 268
2109A Empirical Design of Masonry 268
2110A Glass Unit Masonry 268
21 11 A Masonry Fireplaces 269
21 12A Masonry Heaters 271
21 13A Masonry Chimneys 271
XV
TABLE OF COMTENTS
2114A Nonbearing Walls 275
2115A Masonry Screen Walls 276
CHAPTER 22 STEEL 279R
Section
2201 General 279R
2202 Definitions 279R
2203 Identification and Protection of Steel
for Structural Purposes 279R
2204 Connections 279R
2205 Structural Steel 279R
2206 Steel Joists 280R
2207 Steel Cable Structures 280R
2208 Steel Storage Racks 281
2209 Cold-formed Steel 281
22 1 Cold-formed Steel Light-framed
Construction 281
CHAPTER 22A STEEL 285
Section
2201A General 285
2202A Definitions 285
2203A Identification and Protection of
Steel for Structural Purposes 285
2204A Connections 285
2205A Structural Steel 286
2206A Steel Joists 288
2207A Steel Cable Structures 289
2208A Steel Storage Racks 289
2209A Cold-formed Steel 289
2210A Cold-formed Steel Light-framed
Construction 289
221 1 A Light Modular Steel Moment
Frames for Public Elementary and
Secondary Schools, and
Community Colleges, 289
2212A Testing 290
CHAPTER 23 WOOD ..,,......,,.....,,,.. 293R
Section
2301 General 293R
2302 Definitions 293R
2303 Minimum Standards and Quality 295
2304 General Construction Requirements 299
2305 General Design Requirements for
Lateral-force-resisting Systems 309R
2306 Allowable Stress Design. 317R
JtVI
2307 Load and Resistance Factor Design 327R
2308 Conventional Light-frame Construction .... 327R
CHAPTER 24 GLASS AND GLAZING. ........ 373
Section
2401 General .373
2402 Definitions 373
2403 General Requirements for Glass 373
2404 Wind, Snow, Seismic and
Dead Loads on Glass 373
2405 Sloped Glazing and Skylights 376
2406 Safety Glazing 377
2407 Glass in Handrails and Guards 379
2408 Glazing in Athletic Facilities 379
2409 Glass in Elevator Hoistway 380
CHAPTER 25 GYPSUM BOARD
AND PLASTER 383
Section
2501 General 383
2502 Definitions 383
2503 Inspection 383
2504 Vertical and Horizontal Assemblies 383
2505 Shear Wall Construction 384
2506 Gypsum Board Materials 384
2507 Lathing and Plastering 384
2508 Gypsum Construction 385
2509 Gypsum Board in Showers and
Water Closets 386
2510 Lathing and Furring for Cement
Plaster (Stucco) 386
2511 Interior Plaster 387
2512 Exterior Plaster 387
2513 Exposed Aggregate Plaster 388
CHAPTER 26 PLASTIC 393
Section
2601 General 393
2602 Definitions 393
2603 Foam Plastic Insulation 393
2604 Interior Finish and Trim 396
2605 Plastic Veneer 397
2606 Light-transmitting Plastics 397
2607 Light-transmitting Plastic Wall Panels 398
2608 Light-transmitting Plastic Glazing 399
2609 Light-transmitting Plastic Roof Panels 399
2008 CITY OF LOS ANGELES BUILDING CODE
TABLE OF CONTENTS
2610 Light-transmitting Plastic Skylight Glazing . . 400
2611 Light-transmitting Plastic Interior Signs 400
CHAPTER 27 ELECTRICAL 403
Section
2701 General 403
2702 Emergency and Standby Power Systems 403
CHAPTER 28 MECHANICAL SYSTEMS 407
Section
2801 General 407
2802 Spark Arresters 407
CHAPTER 29 PLUMBING SYSTEMS 409
Section
2901 General 409
CHAPTER 30 ELEVATORS AND
CONVEYING SYSTEMS 413R
Section
3001 General 413R
3002 Hoistway Enclosures 413R
3003 Emergency Operations 414
3004 Hoistway Venting 416
3005 Conveying Systems 416
3006 Machine Rooms 417
3007 Special Requirements for
Elevators in Hospitals 417
CHAPTER 31 SPECIAL CONSTRUCTION .... 421
Section
3101 General 421
3102 Membrane Structures 421
3103 Temporary Structures 422
3104 Pedestrian Walkways and Tunnels 422
3105 Awnings and Canopies 423
3106 Marquees 424R
3107 Signs 424R
3108 Radio and Television Towers 424R
3109 Swimming Pool Enclosures and
Safety Devices 424R
3110 Patio Covers 427R
CHAPTER 31B PUBLIC SWIMMING POOLS ... 431
Section
3101B Scope 431
3102B Definitions 431
2008 CITY OF LOS ANGELES BUILDING CODE
3103B Special Pool Classifications 432
3104B Accessibility to the Physically
Handicapped Person 432
3105B Alternate Equipment, Materials and
Methods of Construction 432
3106B Pool Construction 432
3107B Additional Requirements for a
Temporary Training Pool 433
3108B Pool Geometry 433
3109B Permanent Markings 433
3110B Steps, Recessed Steps, Ladders and
Recessed Stairs (Treads) 437
3111B Handholds 437
31 12B Diving Boards 437
31 13B Pool Decks 437
31 14B Pool Lighting 438
3115B Bathhouse Dressing,
Shower and Toilet Facilities 438
31 16B Drinking Fountains 438
31 17B Hose Bibbs 439
3118B Enclosure of Pool Area 439
3119B Signs 439
3120B Indoor Pool Ventilation 441
3121B Foundations For Pool Equipment 441
3122B Gas Chlorination Equipment Room 441
3123B General Requirements 441
3 124B Turnover Time . 442
3125B Recirculation Piping System and
Components 442
3126B Recirculation Pump Capacity 442
3127B Water Supply Inlets 442
3128B Filters (All Types) 442
3129B Rapid Sand Pressure Filters 443
3130B Diatomaceous Earth Filters 443
3131B High-rate Sand Filters 443
3132B Chemical Feeders 443
3133B Disinfectant Feeders 444
3134B Pool Fittings 444
3135B Spa Pool Special Requirements 445
3136B Cleaning Systems 445
3137B Waste Water Disposal 445
3138B Reserved 446
3139B Reserved 446
3140B Reserved 446
3141B Reserved 446
3142B Reserved 446
TABLE OF CONTENTS
3143B Reserved 446
3144B Reserved 446
3145B Reserved 446
3146B Reserved 446
3147B Reserved 446
3148B Reserved 446
3149B Reserved 446
3150B Reserved 446
3151B Reserved 446
3152B Reserved 446
3153B Reserved 446
3154B Reserved 446
3155B Reserved 446
3156B Reserved 446
3157B Reserved 446
3158B Reserved 446
3159B Reserved 446
3160B 446
3161B 447
CHAPTER 31C RADIATION. .. ,.o 451
Section
3101C Scope . . , 451
3102C Radiation Shielding Barriers 451
3103C Medical Radiographic and
Photofluorographic Installations 45 1
3104C Medical Therapeutic X-ray Installations 451
CHAPTER 31D FOOD ESTABLISHMENTS ..... 455
Section
3101D Scope 455
3102D Definitions 455
3103B Building and Structures .455
CHAPTER 31E TENTS AND MEMBRANE
STRUCTURES. 459
Section
3i01E General Provisions 459
3102E Definitions 459
3103E Tents Having an Occupant of
Load 10 or More 459
3104E Location of Tents 459
3105E Structural Requirements 460
3106E Exit Requirements 460
3107E Heating Equipment 460
xviiii
3108E Membrane (Air-supported and
Air-inflated) Structures 460
3109E Alternative Means of Protection 460
CHAPTER 31F MARINE OIL TERMINALS 465
Section
3101F Introduction 465
3102F Audit and Inspection 466
3103F Structural Loading Criteria 476
3104F Seismic Analysis and"
Structural Performance 488
3105F Mooring and Berthing Analysis and
Design . 494
3106F Geotechnical Hazards and Foundations 499
3107F Structural Analysis and
Design of Components 502
3108F Fire Prevention, Detection and Suppression . . 514
3109F Piping and Pipelines 518
31 lOF Mechanical and Electrical Equipment 520
31 UF Electrical Systems 523
CHAPTER 32 PROJECTIONS FROM BUILDINGS
AND CONSTRUCTION IN THE
PUBLIC RIGHT-OF-WAY 527R
Section
3201 General 527R
3202 Encroachments 527R
CHAPTER 33 SITE WORK DEMOLITION AND
CONSTRUCTION ............ 531R
Section
3301 General 531R
3302 Construction Safeguards.. 53 IR
3303 Demolition 531R
3304 Site Work 531R
3305 Toilet Facilities During Construction 53 IR
3306 Protection of Pedestrians 532R
3307 Protection of Adjoining Property 533R
3308 Temporary Use of Streets, Alleys and
Public Property 534R
3309 Fire Extinguishers 534R
3310 Exits 534R
3311 Standpipes 534R
3312 Automatic Sprinkler System 534R
CHAPTER 34 EXISTING STRUCTURES 537R
Section
3401 General 537R
2008 CITY OF LOS ANGELES BUILDING CODE
TABLE OF CONTENTS
3402 Definitions 537R
3403 Additions, Alterations or Repairs 537R
3404 Fire Escapes 539
3405 Glass Replacement 539
3406 Change of Occupancy 540R
3407 Historic Buildings 540R
3408 Moved Structures 540R
3409 Reserved 540R
3410 Compliance Alternatives 540R
3411 Existing Group R-1 and
Group R-2 Occupancies 549
3412 Existing High-rise Buildings 552
3413 Existing Group I Occupancies 554
3414 Existing Group L Occupancies 554
3415 Earthquake Evaluation and
Design for Retrofit of
Existing Buildings 555
3416 Definitions 557
3417 Seismic Criteria Selection for
Existing Buildings 557
3418 Method A 560
3419 Method B 560
3420 Peer Review Requirements 561
3421 Additional Requirements for
Public Schools 562
CHAPTER 34A EXISTING STRUCTURES 565
Section
3401 A General 565
3402A Definitions 565
3403A Additions, Alterations or Repairs 566
3404A Fire Escapes 567
3405A Glass Replacement 568
3406A Change of Occupancy 568
3407A Historic Buildings 568
3408A Moved Structures 568
3409A Reserved 568
3410A Compliance Alternatives 568
3411 A Additions, Alterations, Repairs and
Seismic Retrofit to Existing
Buildings or Structures 577
341 2A Earthquake Evaluation and
Design for Retrofit of Existing
Hospital Buildings 578
3413A Seismic Rehabilitation of Buildings 579
3414A Peer Review Requirements 582
CHAPTER 35 REFERENCED STANDARDS. ... 585
CHAPTER 61 SPECIAL HAZARD AREAS 609
Section
6101 Impact Hazard Glazing in
Existing Buildings 609
6102 Rubbish Rooms 609
6103 Shafts, Pits and Similar
Excavation — Misdemeanor 609
6104 Fire Districts 609
6105 Separation from Oil Wells 609
6109 Swimming Pools and Other Bodies of
Water — Protective Devices Required 610
CHAPTER 62 SIGNS 611
Section
6201 General Provisions 611
6202 Definitions 612
6203 Location 612
6204 Identification 612
6205 Design and Construction 612
6206 Electrical 614
6207 Combustible Materials 614
6208 Animated Devices 614
6209 Ground Signs 614
6210 Roof Signs 614
6211 Wall Signs 615
6212 Projecting Signs . 615
6213 Marquee Signs 615
6214 Portable Signs 616
6215 Referenced Standards 616
6216 Existing Signs 616
CHAPTER 63 ADDITIONAL PROVISIONS
FOR SPECIFIC USES 617
Section
6301 General 617
6302 Food Establishment 617
6303 Service Stations 618
6304 Residential Uses 618
6305 Parking Garages Serving Residential Uses ... 618
6306 Antigraffiti Finish to Exterior Walls 618
6307 Shower and Locker Facilities ...619
2008 CITY OF LOS ANGELES BUILDING CODE
XIX
TABLE OF CONTENTS
CHAPTER 67 SECURITY PROVISIONS ....... 621
Section
6701 Purpose 621
6702 General 621
6703 Limitations 621
6704 Alternate Security Provisions 621
6705 Definitions 621
6706 Entry Vision 622
6707 Appurtenant Access 622
6708 Doors— General 622
6709 Swinging Doors 622
6710 Sliding Glass Doors 623
6711 Overhead and Sliding Doors 623
6712 Metal Accordion- Grate or
Grill-Type Doors 623
6713 Glazed Opening — General 623
6714 Glazing 623
6715 Windows 623
6716 Openings Other than Doors or
Glazed Opening 624
6717 Test— General 624
GRADING, EXCAVATIONS
AND FILLS ........ o .......... 625
Section
7001 Purpose 625
7002 Scope 625
7003 Definitions 625
7004 Grading Designation 626
7005 General Requirements ; 626
7006 Conditions Precedent to Issuing a
Grading Permit 627
7007 Safety Precautions During Grading 631
7008 Professions Inspection and Certification
for Engineered Grading ; ... 631
7009 Professional Inspection for
Regular Grading 632
7010 Excavations 632
7011 Fills 633
7012 Planting and Irrigation of Cut and Fill
Slopes in Hillside Areas 634
7013 Erosion Control and Drainage Devices 635
7014 Construction Requirements and Limitations . . 636
7015 Buttress Fills 636
7016 Areas Subjected to Slides and
Unstable Soil 642
CHAPTER 71 METHANE SEEPAGE
REGULATIONS
Section
7101 Purpose 643
7102 Definitions .643
7103 General Methane Mitigation Requirements . . . 643
7104 General Methane Requirements 644
7105 Existing Building 646
7106 Testing, Maintenance and Service of
Gas-detection and Mechanical
Ventilation Systems 646
7107 Emergency Procedures 646
7108 Application of Methane Seepage
Regulations to Locations or Areas
Outside the Methane Zone and
Methane Buffer Zone Boundaries 646
7109 Additional Remedial Measures 646
CHAPTER 72 FIRE DISTRICT
REGULATIONS .' .649
Section
7200 Purpose 649
7201 General 649
7202 Additions to Buildings 651
7203 General Requirements 65 1
7204 Special Requirements for
Fire District No. 1 651
7205 Provisional Structures 652
7207 Special Requirements for the Very
High Fire Hazard Severity Zone 652
7208 Prohibited Vehicles 653
CHAPTER 81 EXISTING BUILDINGS AND
STRUCTURES— GENERAL
REQUIREMENTS. 655
Section
8101
8102
8103
8104
8105
8106
8107
8108
8109
8110
General Provisions 655
Enforcement 655
Existing Building Rights 655
Basic Maintenance and Repair of
Existing Buildings and Premises 655
Illegal Buildings, Construction and Use 656
Fire District Requirements 656
Requirements outside of a Fire District 657
Nuisances, Hazardous Buildings and
Substandard Residential Buildings 657
Relocated Building 658
Unreinforced Masonry Bearing
Wall Buildings 658
2008 CITY OF LOS ANGELES BUILDING CODE
TABLE OF CONTENTS
8111 Residential Heating 658
8112 Residential Plumbing 658
8113 Rod Bracing Systems 658
81 14 Parapets and Appendages 658
8115 Sandblasting 659
8116 Special Provisions for
Light-housekeeping Rooms 659
8117 Fire Watch 660
8118 Pool Water Clarity 660
8119 Historical Buildings and Structures 660
CHAPTER 82 CHANGE OF OCCUPANCY,
USE AND RATING
CLASSIFICATION 663
Section
8201 General 663
8202 Change of Rating Classification 663
8203 Change of Occupancy Group or
Group Division 663
8204 Change of Use 663
8205 Certificate of Building Compliance 664
CHAPTER 83 RELOCATION PERMIT 665
Section
8301 General Application 665
8302 Permits Required — General
Considerations 665
8303 Permit Application — Plans and
Specifications 665
8304 Special Conditions under Which a Permit
Will Not Be Issued 666
8305 Guarantee of Completion Required 666
8306 Terms of Permit 667
8307 Default in Performance of Conditions
or Terms of Permits — Failure of
Complete 667
8308 Permit Fee 667
8309 Entry Upon Premises ( ... 668
CHAPTER 85 ALTERNATIVE BUILDING
STANDARDS FOR JOINT
LIVING AND WORK
QUARTERS 669
Section
8501 General 669
8502 Alternative Standards 670
CHAPTER 86 SPECIAL PROVISIONS FOR
EXISTING BUILDINGS 675
Section
8601 General ; 675
8602 Group E Occupancies 675
8603 Fire Protection — Warning System 676
8604 Fire Safety Standards 677
8605 Emergency Homeless Shelters 681
8606 Emergency Lighting Standards for
Existing Residential Buildings, Group R,
Division 1 Occupancies 682
8607 Tenant Safety for Apartrnent Houses,
Except for Residential Condominiums .... 683
CHAPTER 88 EARTHQUAKE HAZARD
REDUCTION IN EXISTING
BUILDINGS 685
Section
8801 Purpose 685
8802 Scope 685
8803 Definitions 685
8804 Rating Classifications 685
8805 General Requirements 686
8806 Administration 686
8807 Historical Buildings 687
8808 Analysis and Design 687
8809 Materials of Construction 688
8810 Information Required on Plans 690
8811 Design Check — Compatibility of Roof
Diaphragm Stiffness to Unreinforced
Masonry Wall Out-of-plane Stability 691
8812 Violations 692
8813 Special Requirements 692
CHAPTER 89 ABATEMENT OF BUILDINGS,
STRUCTURES, PREMISES AND
PORTIONS THEREOF WHICH
CONSTITUTE A NUISANCE OR
ARE HAZARDOUS, OR
SUBSTANDARD ..699
Section
8901 General 699
8902 Definitions 699
8903 Abatement Procedures 702
8904 Special Provisions for Vacant Property
Graffiti Removal 705
8905 Special Pi"ovisions for Vacating,
Barricading, Removing or Demolishing
Buildings or Structures without Notice .... 707
2008 CITY OF LOS ANGELES BUILDING CODE
TABLE OF COWTENTS
8906
8907
8908
Payment and Recovery of Repair and
Demolition Funds
Abatement of Public Nuisance Conditions
Related to a Declared Local Emergency
Special Provisions for the Repair
of Welded Steel Moment Frame
Buildings Located in High Earthquake
Damaged Areas
..707
..708
..709
REDUCTION IN EXISTING
TILT-UP CONCRETE WALL
BUILDINGS 711
Section
9101 Purpose 711
9102 Scope 711
9103 Definitions 711
9104 Rating Classifications 711
9105 General Requirements 711
9106 Administration 712
9107 Historical Buildings 712
9108 Analysis and Design 712
9109 Materials of Construction 714
91 10 Information Required on Plans 714
9111 Required Building Maintenance 714
9112 Violations — Penalties for Disregarding
Department Orders 714
CHAPTER 92 VOLUNTARY— EARTHQUAKE
RESIDENTIAL BUILDINGS WITH
Section
9201
9202
9203
9204
9205
UNBOLTED SILL PLATES 715
General 715
Definitions 715
Structural Weaknesses 716
Strengthening Requirements 716
Quality Control 718
EXISTING WOOD FRAME
Section
9301 Purpose.
9302 Scope . .
S WITH
^ONT
721
721
721
9303 Definitions 721
9304 General Requirements for Phased
Construction 722
9305 Analysis and Design 722
9306 Materials of Construction 724
9307 Required Information on Plans 724
CHAPTER 94 VOLUNTARY— EARTHQUAKE
HAZARD REDUCTION IN
EXISTING HILLSIDE
BUILDINGS 727
Section
9401 Purpose 727
9402 Scope 727
9403 Definitions 727
9404 General Requirements 727
9405 Pre-design Investigation 727
9406 Analysis and Design 728
9407 Historical Buildings 731
9408 Quality Control 731
9409 Information Required on Plans 731
CHAPTER 95 VOLUNTARY— EARTHQUAKE
HAZARD REDUCTION IN
EXISTING REINFORCED
CONCRETE BUILDINGS AND
CONCRETE FRAME BUILDINGS
WITH MASONRY FILL 733
Section
9501 Purpose 733
9502 Scope 733
9503 Definitions 733
9504 Reserved 733
9505 General Requirements 733
9508 Criteria Selection 733
9509 Dynamic Lateral Analysis Procedure 734
9510 Equivalent Lateral Force Procedure 736
95 1 1 Simplified Analysis Procedure 737
9512 Minimum Requirements for a Limited
Structural Analysis 738
9513 Determination of the Stress-strain
Relationship of Existing Unreinforced
Masonry 738
9514 Evaluation of Existing Structural Conditions .739
9515 Materials of Construction 739
9516 Information Required on the Plans 739
2008 CITY OF LOS ANGELES BUILDING CODE
•
TABLE OF CONTENTS
CHAPTER 96 VOLUNTARY— EARTHQUAKE
HAZARD REDUCTION IN
EXISTING REINFORCED
CONCRETE AND REINFORCED
MASONRY WALL BUILDINGS
WITH FLEXIBLE
DIAPHRAGMS 741
Section
9601 Purpose 741
9602 Scope 741
9603 Definitions 741
9604 Analysis and Design 741
9605 Materials of Construction 743
9606 Information Required on Plans 743
EXCERPTS FROM RELATED LOS ANGELES CITY
CODES LOS ANGELES MUNICIPAL CODE ......745
Section
28.10 Balloon-Use for Advertising 745
28.11 Captive Balloons and Similar Devices 745
Division A MisceElaneous 746
Section
96.02 Excavating, Depositing, Dumping — Earth,
Sand, Gravel, Etc.— Where Prohibited ... 746
96.05 Declaring Certain Area Subject to Inundation
and Prohibiting Construction of Certain
Buildings Therein 746
Division C Fabricator Approvals 748
Section
92.200 Statement of Purpose 748
96.201 Definitions 748
96.203 Scope and Effect of Approvals 748
96.204 Issuance of Approval — Procedures 748
96.205 Suspension and Revocation of Appeals .... 750
Division D Repost of Residential Property
Records and Pending and
Recorded Liens 751
Section
96.300 Intent 751
96.301 Definitions 751
96.302 Reports Required ,. 751
96.303 Application 751
96.304 Contents of Reports 752
96.305 Fee for Reports 753
96.306 Effective Period of Report 753
96.307 Delivery of the Report 753
96.308 Exceptions 753
96.309 Non-Compliance Not to Invalidate Sale or
Exchange: Exception 753
96.309.1 Information Furnished as Ground for
Rescission 754
CHAPTER IX
ARTICLE 8 GENERAL ADMINISTRATIVE
PROVISIONS 755
Section
98.0103 Definitions 755
98.0105 Inspections . 755
98.0109 Express Permits 756
Division 4 Appeals and Request for Slight
Modification Appeal Fees-Availability
of Records for Inspection-Board
Related Services-Investigation-
Powers of Department and Board
and Penalties 757
Section
98.0402 Code Enforcement Costs Incurred:
Investigation Costs, Fees and Fines 757
98.0403.1 Powers of the Department and the Board ... 758
98.0403.2 Procedures for Appeals to the
Department and to the Board 760
98.0404 Extra Territorial Inspections 761
98.0405 Charges for Printed Materials and
Miscellaneous Type Services 761
980.406 Inspection Fees for Off Hours Inspection . . . 762
98.0407 Special Enforcement Procedure Fees 762
98.0408 Issuance of Citations by Designated
Employees 762
98.0410 Surcharge for One-stop Permit Center 762
98.041 1 Non-compliance Fees 762
98.0412 Inspection Fees 764
98.0414 Certification Fees 764
98.0415 Clerical, Issuing or Research Fees and
Miscellaneous Fees 764
98.0416 Building and Safety Systems
Development Surcharge 764
98.0417 Processing Fees for Miscellaneous
Certificates of Compliance 764
2008 CITY OF LOS ANGELES BUILDING CODE
TABLE OF CONTENTS
98.0418 Surcharge for Development of
Automated Systems for the
Department of City Planning 764
98.0420 Refunds of Department Fees 765
98.0421 Inspection Fee for Code Enforcement
Inspection 765
98.0422 Fees for Off Hours Plan Check and
Other Services 765
Division 5 Testing Procedures,
Regulations and Administration . o 766
Section
98.051 Alternate Materials, Devices and
Methods of Construction 766
98.0502 Appliances, Fixtures and Equipment 768
98.0503 Testing Agencies 771
98.0504 Environmental Reports 772
Expiration and Revocation of Permits,
Plan Check and Slight Modifications
Alternatives ................ 773
Division 6
Section
98.0601 Purpose 773
98.0602 Expiration of Permits 773
98.0603 Expiration of Plan Check 773
98.0604 Expiration of Slight Modifications and
Alternatives 773
98.0606 Time Limits of Requests for Extension 774
Division 7 Abatement of Vacant Buildings . . . 775
Section
98.0701 Declaration of Purpose 775
98.0702 Definitions 775
98.0703 Enforcement Authority 775
98.0704 Enforcement Remedies 775
98.0705 Strict Liability Offenses 775
98.0706 Duty to Clean, Fence and Barricade 775
98.0707 Administrative Abatement Procedures for
Vacant and Unsecured Structures 775
98.0708 Standards for Fencing and Barricading
a Vacant Structure 776
98.0709 Entry or Interference with
Notice Prohibited 776
98.0710 Continuous Abatement Authority 776
98.0711 Abatement Cost 776
98.0712 Continuous Public Nuisances . 776
98.0713 Duty to File a Statement of Intent 776
98.0714 Posting Name of Responsible Person 777
98.0715 Reinspection Fee 777
98.0716 Vacant Structure Penalty 777
98.0717 Procedures for Barricaded and Vacant
Structure Penalty 777
98.0718 Appeal of Barricaded and Vacant
Structure Penalty 778
98.0719 Administrative Enforcement Hearing 778
98.0720 Failure to Pay Penalties 778
98.0721 Allocation of Vacant Building Penalty 778
CHAPTER XI
ARTICLE 1 NOISE REGULATION 779
Section
11 1.00 Declaration of Policy 779
111.01 Definitions 779
1 1 1 .02 Sound Level Measurement Procedure
and Criteria 779
11 1.03 Minimum Ambient Noise Level 780
1 1 1 .04 Violations: Additional Remedies,
Injunctions 781
111.05 Enforcement, Citations 781
ARTICLE 2 SPECIAL NOISE SOURCES .... 781
Section
112.01 Radios, Television Sets, and
Similar Devices 781
1 12.02 Air Conditioning, Refrigeration, Heating,
Pumping, Filtering Equipment 781
1 12.03 Construction Noise 781
1 12.04 Powered Equipment Intended for
Repetitive Use in Residential Areas
and Other Machinery, Equipment, and
Devices 781
1 12.05 Maximum Noise Level of Powered
Equipment or Powered Hand Tools 782
1 12.06 Places of Public Entertainment 782
ARTICLE 6 GENERAL NOISE 782
Section
116.01 Loud, Unnecessary and Unusual Noise 782
LOS ANGELES ADMINISTRATIVE CODE
DIVISION 19, CHAPTER 10 PROCEDURE FOR THE
REMOVAL OF ILLEGAL SIGNS 783
19.100 Definitions 783
19.101 Illegal Signs - Nuisance. 783
19.102 Entry Upon Vacant Private Property 783
2008 CITY OF LOS ANGELES BUILDUNG CODE
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TABLE OF CONTENTS
19.103 Interference Prohibited 783
19.104 Notice of Illegal Signs 783
19.105 Removal of Illegal Sign 783
19.106 Collection of Costs 783
INDEX 785
HISTORY NOTE 817
2008 CITY OF LOS ANGELES BUILDING CODE xxv
2008 CITY OF LOS ANGELES BUILDING CODE
STRUCTURAL DESIGN
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1609.1.1 Determination of wind loads. Wind loads on
every building or structure shall be determined in accor-
dance with Chapter 6 of ASCE 7. The type of opening pro-
tection required, the basic wind speed and the exposure
category for a site is permitted to be determined in accor-
dance with Section 1609 or ASCE 7. Wind shall be assumed
to come from any horizontal direction and wind pressures
shall be assumed to act normal to the surface considered.
Exceptions:
1. Subject to the limitations of Section 1609.1.1.1,
the provisions of SBCCI SSTD 10 shall be permit-
ted: for applicable Group R-2 and R-3 buildings.
2. Subject to the limitations of Section 1609.1.1.1,
residential structures using the provisions of the
AF&PA WFCM.
3. Designs using NAAMM FP 1001.
4. Designs using TIA/EIA-222 for antenna-support-
ing structures and antennas.
5. [OSHPD 2] Exception in Section 1609.4 shall ap-
ply to ASCE 7.
1609.1.1.1 Applicability. The provisions of SSTD 10
are applicable only to buildings located within Exposure
B or C as defined in Section 1609.4. The provisions of
SBCCI SSTD 10 and the AF&PA WFCM shall not apply
to buildings sited on the upper half of an isolated hill,
ridge or escarpment meeting the following conditions:
1. The hill, ridge or escarpment is 60 feet (18 288
mm) or higher if located in Exposure B or 30 feet
(9144 mm) or higher if located in Exposure C;
2. The maximum average slope of the hill exceeds 1
percent; and
3. The hill, ridge or escarpment is unobstructed up-
wind by other such topographic features for a dis-
tance from the high point of 50 times the height of
the hill or 1 mile ( 1 .6 1 km), whichever is greater.
1609.1.1.2 High wind velocity areas. The Superinten-
dent of Building may designate certain areas of the City
as "high wind velocity areas" when evidence or studies
indicate that the wind velocity results in damage to struc-
tures conforming to the minimum requirements of this
Code. The Superintendent of Building may specify addi-
tional requirements over and above those required by this
Code with respect to the following:
1. Glazing of openings in exterior walls.
2. Anchorage of post and beam construction.
3. Cantilever overhangs.
4. Roofmg and roof framing.
1609.1.2 Pijotection of openings. In wind-borne debris
regions, glazing in buildings shall be impact-resistant or
protected with an impact-resistant covering meeting the
requirements of an approved impact-resisting standard or
ASTM E 1996 and ASTM E 1886 referenced therein as fol-
lows:
1. Glazed openings located within 30 feet (9144 mm) of
grade shall meet the requirements of the Large Mis-
sile Test of ASTM E 1996.
2. Glazed openings located more than 30 feet (9144
mm) above grade shall meet the provisions of the
Small Missile Test of ASTM E 1996.
Exceptions:
1. Wood structural panels with a minimum thickness
of Vi6 inch (11.1 mm) and maximum panel span of
8 feet (2438 nrun) shall be permitted for opening
protection in one- and two-story buildings. Panels
shall be precut so that they shall be attached to the
framing surrounding the opening containing the
product with the glazed opening. Panels shall be
secured with the attachment hardware provided.
Attachments shall be designed to resist the compo-
nents and cladding loads determined in accor-
dance with the provisions of ASCE 7. Attachment
in accordance with Table 1609.1.2 is permitted for
buildings with a mean roof height of 33 feet (10
058 mm) or less where wind speeds do not exceed
130 mph (57.2 m/s).
2. Glazing in Occupancy Category I buildings as de-
fined in Section 1604.5, including greenhouses
that are occupied for growing plants on a produc-
tion or research basis, without public access shall
be permitted to be unprotected.
3. Glazing in Occupancy Category II, III or IV build-
ings located over 60 feet (18 288 mm) above the
ground and over 30 feet (9144 mm) above aggre-
gate surface roofs located within 1,500 feet (458
m) of the building shall be permitted to be unpro-
tected.
1609.1.2.1 Louvers. Louvers protecting intake and
exhaust ventilation ducts not assumed to be open that are
located within 30 feet (9144 mm) of grade shall meet
requirements of an approved impact-resisting standard
or the Large Missile Test of ASTM E 1996.
TABLE 1609.1.2
WIND-BORNE DEBRIS PROTECTION FASTENING
SCHEDULE FOR WOOD STRUCTURAL PANELS^"''''
FASTENER
TYPE
FASTENER SPACING (inches)
Panel Span
< 4 feet
4 feet < Panel
Span < 6 feet
6 feet < Panel
Span < 8 feet
No. 6 screws
16
12
9
No. 8 screws
16
16
12
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound = 4.4 N,
1 mile per hour = 0.44 m/s.
a. This table is based on a maximum wind speed {3-second gust) of 130 mph
and mean roof height of 33 feet or less.
b. Fasteners shall be installed at opposing ends of the wood structural panel.
Fasteners shall be located a minimum of 1 inch from the edge of the panel.
c. Fasteners shall be long enough to penetrate through the exterior wall cover-
ing a minimum of 1.75 inches into wood -wall framing; a minimum of 1.25
inches into concrete block or concrete; or into steel framing by at least three
threads. Fasteners shall be located a minimum of 2.5 inches from the edge of
concrete block or concrete.
d. Where screws are attached to masonry or masonry/stucco, they shall be
attached utilizing vibration-resistant anchors having a minimum withdrawal
capacity of 490 pounds.
2008 CITY OF LOS ANGELES BUILDING CODE
23R
STRUCTURAL DESIGN
.2 DeiRnltioES. The following words and terms shall, for
the purposes of Section 1609, have the meanings shown herein.
HURRICANE-PRONE REGIONS. Areas vulnerable to
hurricanes defined as:
1 . The U. S. Atlantic Ocean and Gulf of Mexico coasts where
the basic wind speed is greater than 90 mph (40 m/s) and
2. Hawaii, Puerto Rico, Guam, Virgin Islands and Ameri-
can Samoa.
WIND=BORNE DEBRIS REGION, Portions of hurri-
cane-prone regions that are within 1 mile (1.61 km) of the
coastal mean high water line where the basic wind speed is 1 10
mph (48 m/s) or greater; or portions of hurricane-prone regions
#
23aR 2008 CDTY OF LOS ANGELES BUILDING CODE
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2008 CITY OF LOS ANGELES BUILDING CODE 23bR
STRUCTURAL DESIGN
where the basic wind speed is 120 mph (53 m/s) or greater; or
Hawaii.
1609.3 Basic wind speed. The basic wind speed, in mph, for
the determination of the wind loads shall be determined by Fig-
ure 1609. Basic wind speed for the special wind regions indi-
cated, near mountainous terrain and near gorges shall be in
accordance with local jurisdiction requirements. Basic wind
speeds determined by the local jurisdiction shall be in accor-
dance with Section 6.5.4 of ASCE 7.
In nonhurricane-prone regions, when the basic wind speed is
estimated from regional climatic data, the basic wind speed
shall be not less than the wind speed associated with an annual
probability of 0.02 (50-year mean recurrence interval), and the
estimate shall be adjusted for equivalence to a 3-second gust
wind speed at 33 feet (10 m) above ground in Exposure Cate-
gory C. The data analysis shall be performed in accordance
with Section 6.5.4.2 of ASCE 7.
1609.3.1 Wind speed conversion. When required, the
3-second gust basic wind speeds of Figure 1609 shall be
converted to fastest-mile wind speeds, Vj-^, using Table
1609.3.1 or Equation 16-34.
Vfin
(^3,-105)
1.05
(Equation 16-34)
where:
V-^s = 3-second gust basic wind speed from Figure 1609.
1609.4 Exposure category. For each wind direction consid-
ered, an exposure category that adequately reflects the charac-
teristics of ground surface irregularities shall be determined for
the site at which the building or structure is to be constructed.
Account shall be taken of variations in ground surface rough-
ness that arise from natural topography and vegetation as well
as from constructed features.
Exception: [OSHPD 2] The wind design shall comply with
Exposure C requirements unless the architect or structural
engineer in general responsible charge can justify to the
enforcement agency that the building site and surrounding
terrain conform to the criteria for Exposure B. Minimum
data to establish the exposure category shall be a topo-
graphic map (i.g., United States Geological Survey quad-
rangle maps) and aerial photographs except that for
Exposure B sites located within urban areas, a vicinity map
of sufficient size and scale to verify compliance may be pro-
vided.
1609,4.1 Wind directions and sectors. For each selected
wind direction at which the wind loads are to be evaluated.
the exposure of the building or structure shall be determined
for the two upwind sectors extending 45 degrees (0.79 rad)
either side of the selected wind direction. The exposures in
these two sectors shall be determined in accordance with
Sections 1609.4.2 and 1609.4.3 and the exposure resulting
in the highest wind loads shall be used to represent winds
from that direction.
1609.4.2 Surface roughness categories. A ground surface
roughness within each 45-degree (0.79 rad) sector shall be
determined for a distance upwind of the site as defined in
Section 1609.4.3 from the categories defined below, for the
purpose of assigning an exposure category as defined in
Section 1609.4.3.
Surface Roughness B. Urban and suburban areas,
wooded areas or other terrain with numerous closely
spaced obstructions having the size of single-family
dwellings or larger.
Surface Roughness C. Open terrain with scattered
obstructions having heights generally less than 30 feet
(9144 mm). This category includes flat open country,
grasslands, and all water surfaces in hurricane-prone
regions.
Surface Roughness D. Flat, unobstructed areas and
water surfaces outside hurricane-prone regions. This cat-
egory includes smooth mud flats, salt flats and unbroken
ice.
1609.4.3 Exposure categories. An exposure category shall
be determined in accordance with the following:
Exposure B. Exposure B shall apply where the ground
surface roughness condition, as defined by Surface
Roughness B, prevails in the upwind direction for a dis-
tance of at least 2,600 feet (792 m) or 20 times the height
of the building, whichever is greater.
Exception: For buildings whose mean roof height is
less than or equal to 30 feet (9144 mm), the upwind
distance is permitted to be reduced to 1 ,500 feet (457
m).
Exposure C. Exposure C shall apply for all cases where
Exposures B or D do not apply.
Exposure D, Exposure D shall apply where the ground
surface roughness, as defined by Surface Roughness D,
prevails in the upwind direction for a distance of at least
5,000 feet (1524 m) or 20 times the height of the build-
ing, whichever is greater. Exposure D shall extend inland
from the shoreline for a distance of 600 feet ( 1 83 m) or 20
times the height of the building, whichever is greater.
TABLE 1609.3.1
EQUIVALENT BASIC WIND SPEEDS^"'
V3S
85
90
100
105
110
120
125
130
140
145
150
160
170
Vf^
71
76
85
90
95
104
109
114
123
128
133
142
152
For SI: 1 mile per hour = 0.44 m/s.
a. Linear interpolation is permitted.
b. V35 is the 3-second gust wind speed (mph).
c. V^ is the fastest mile wind speed (mph).
24
2008 CITY OF LOS ANGELES BUILDING CODE
STRUCTURAL DESIGN
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1613.7 Additional seismic requirements.
1613.7.1 Suspended ceilings. Minimum design and instal-
lation standards for suspended ceilings shall be determined
in accordance with the requirements of Chapter 25 and this
section.
1613.7.1.1 Scope. This part contains special require-
ments for suspended ceilings and lighting systems. The
provisions of Section 13.5.6 of ASCE 7 shall apply
except as modified here.
1613.7.1.2 General. The suspended ceilings and light-
ing systems shall not be located more than 6 feet (1828
mm) below the structural floor or roof system above
unless the entire system is designed by a licensed engi-
neer or architect.
1613.7.1.3 Design and installation requirements.
1613.7.1.3.1 Bracing at discontinuity. Positive brac-
ing to the structure shall be provided at changes in the
ceiling plane elevation or at discontinuities in the ceil-
ing grid system.
1613.7.1.3.2 Support for appendages. Cable trays,
electrical conduits and piping shall be independently
supported and independently braced from the struc-
ture.
1613.7.1.3.3 Sprinkler heads. All sprinkler heads
(drops) except fire-resistance-rated floor/ceiling or
roof/ceiling assemblies shall be designed to allow for
free movement of the sprinkler pipes with oversize
rings, sleeves or adaptors through the ceiling tile in
accordance with Section 13.5.6.2.2 (e) of ASCE 7.
Sprinkler heads penetrating fire-resistance-rated
floor/ceiling or roof/ceiling assemblies shall comply
with Section 712 of this Code.
1613.7.1.3.4 Perimeter members. A minimum wall
angle size of at least a 2-inch (5 1 mm) horizontal leg
shall be used at perimeter walls and interior full height
partitions. The first ceiling tile shall maintain V4-inch
(19 mm) clear from the finish wall surface. An equiva-
lent alternative detail that will provide sufficient
movement due to anticipated lateral building dis-
placement may be used in lieu of the long leg angle
subject to the approval of the Superintendent of
Building.
1613.7.1.4 Special requirements for means of egress.
Suspended ceiling assemblies located along means of
egress serving an occupant load of 30 or more shall com-
ply with the following provisions:
1 . General. Ceiling suspension systems shall be con-
nected and braced with vertical hangers attached
directly to the structural floor or roof system above
and along the means of egress serving an occupant
load of 30 or more and at lobbies accessory to
Group A occupancies. Spacing of vertical hangers
shall not exceed 2 feet (610 mm) on center along
the entire length of the suspended ceiling assembly
located along the means of egress or at the lobby.
2. Assembly device. All lay-in panels shall be se-
cured to the suspension ceihng assembly with two
hold-down clips minimum for each tile within a
4-foot (1219 mm) radius of the exit lights and exit
signs.
3. Emergency systems. Independent supports and
braces shall be provided for light fixtures required
for exit illumination. Power supply for exit illumi-
nation shall comply with the requirements of Sec-
tion 1006.3 of this Code.
4. Supports for appendage. Separate support from
the structural floor or roof system above shall be
provided for all appendages, such as light fixtures,
air diffusers, exit signs and similar elements.
1613.7.2 Wood diaphragms supporting concrete or
masonry walls. In addition to other requirements of this
Chapter for lateral-force-resisting systems, wood dia-
phragms shall comply with the following provisions:
1 . Continuous tie spacing. The spacing of continuous
ties shall not exceed 40 feet (1219 mm). Added
chords of diaphragms may be used to form
subdiaphragms to transmit the anchorage forces to the
main continuous crossties.
2. Anchorage force. The maximum diaphragm shear
used to determine the depth of the subdiaphragm shall
not exceed 75 percent of the maximum diaphragm
shear.
3. Horizontal irregularities. Chords and drag strut
members in diaphragms having horizontal structural
irregularities listed in Table 12.3-1 of ASCE 7 shall be
designed for forces in Section 12.3.3.4 of ASCE 7.
1613.8 Earthquake recording instrumentation.
1613.8.1 Applicability. The requirements of this section
shall apply to buildings for which permits were issued after
July 1, 1965.
1613.8.2 General. Every new building over six stories in
height with an aggregate floor area of 60,000 square feet
(5574 m^) or more and every new building over ten stories in
height regardless of the floor area shall be equipped with at
least thi'ee approved recording accelerographs.
Exception: A building selected by the State of Califor-
nia as part of its Strong Motion Instrumentation Program
(Section 2700, Chapter 8, Division 2, California Public
Resources Code) need not comply with this section until
it ceases to be part of the program.
All new buildings that are designed using the nonlinear
response history procedure of "Seismic Response History
Procedures" in Chapter 16 of ASCE 7 shall be equipped
with a structural monitoring system in accordance with
standards established by the Superintendent of Building.
1613.8.3 Maintenance. Maintenance and service of the
instruments shall be provided by the owner of the building
subject to the approval of the Superintendent of Building.
Data produced by the instruments shall be made available to
the Superintendent of Building on request.
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2008 CITY OF LOS ANGELES BUILDING CODE
50aR
STRUCTURAL DESIGN
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Maintenance and service of the instruments shall be per-
formed annually and shall be performed only by an
approved testing agency. The owner shall file with the
Department a written report from an approved testing
agency certifying that each instrument has been serviced
and is in proper working condition. This report shall be sub-
mitted when the instruments are installed and annually
thereafter. Each instrument shall have affixed to it an exter-
nally visible tag specifying the date of the last maintenance
or service and the printed name and address of the testing
agency performing the service.
,4 LocatioM. For new buildings requiring
accelerographs per Section 1613.8.2, the instruments shall
be located in the basement, mid-height and near the top of
the building. Each instrument shall be located so that access
is maintained at all times and is unobstructed by room con-
tents. A sign stating "MAINTAIN CLEAR ACCESS TO
THIS INSTRUMENT" in 1-inch (25 mm) block letters
shall be posted in a conspicuous location at the instrument.
1613.8.5 Instrumentation of existing buildings. All own-
ers of existing structures selected by the Department shall
provide accessible space for the installation of appropriate
earthquake-recording instruments. Locations of the instru-
ments shall be determined by the engineer of record and
approved by the Department. The owners shall make
arrangements with the Department to provide, maintain and
service the instruments as required above. Data shall be the
property of the Department, but copies of individual records
shall be made available to the public on request with the
payment of an appropriate fee.
All legally existing instruments shall be maintained and
serviced in proper working condition. Each instrument shall
be maintained and serviced as specified by Section 1613.8.3
and shall be provided with a sign as required by Section
1613.8.4.
1613.9 Seismic design provisions for hillside buildings.
1613.9.1 Purpose. The purpose of this section is to estab-
lish minimum regulations for the design and construction of
new buildings and additions to existing buildings when con-
structing these buildings on or into slopes steeper than one
unit vertical in three units horizontal (33.3-percent slope).
These regulations establish minimum standards for seismic
force resistance to reduce the risk of injury or loss of life in
the event of earthquakes.
1613.9.2 Scope. The provisions of this section shall apply to
the design of the lateral-force-resisting system for hillside
buildings at and below the base level diaphragm. The design
of the lateral-force-resisting system above the base level
diaphragm shall be in accordance with the provisions for
seismic and wind design as required elsewhere in this Chap-
ter.
Exception: Nonhabitable accessory buildings and patio
decks not supporting or supported from the main build-
ing are exempt from these regulations.
1613.9.3 Definitions. For the purposes of this section, cer-
tain terms are defined as follows:
BASE LEVEL DIAPHRAGM. The floor at, or closest to,
the top of the highest level of the foundation.
DIAPHRAGM ANCHORS, Assemblies that connect a
diaphragm to the adjacent foundation at the uphill dia-
phragm edge.
DOWNHILL DIRECTION. The descending direction of
the slope approximately perpendicular to the slope con-
tours.
FOUNDATION. Concrete or masonry, which supports a
building, including footings, stem walls, retaining walls and
grade beams.
FOUNDATION EXTENDING IN THE DOWNHILL
DIRECTION. A foundation running downhill and approx-
imately perpendicular to the uphill foundation.
HILLSIDE BUILDING. Any building or portion of a
building constructed on or into a slope steeper than one unit
vertical in three units horizontal (33.3-percent slope). If
only a portion of the building is supported on or into the
slope, these regulations apply to the entire building.
PRIMARY ANCHORS. Diaphragm anchors designed for
and providing a direct connection as described in Sections'
1613.9.5 and 1613.9.7.3 between the diaphragm and the
uphill foundation.
SECONDARY ANCHORS. Diaphragm anchors designed
for and providing a redundant diaphragm to foundation con-
nection as described in Sections 1613.9.6 and 1613.9.7.4.
UPHILL DIAPHRAGM EDGE. The edge of the dia-
phragm adjacent and closest to the highest ground level at
the perimeter of the diaphragm.
UPHILL FOUNDATION. The foundation parallel and
closest to the uphill diaphragm edge.
1613.9.4 Analysis and design.
1613.9.4.1 General. Every hillside building within the
scope of this section shall be analyzed, designed and con-
structed in accordance with the provisions of this Chap-
ter. When the code-prescribed wind design produces
greater stresses than seismic design stress, the wind
design shall govern, but detailing requirements and limi-
tations prescribed in this and referenced sections shall be
followed.
1613.9.4.2 Base level diaphragm — downhill direc-
tion. The following provisions shall apply to the seismic
analysis and design of the connections for the base level
diaphragm in the downhill direction:
1613.9.4.2.1. Base for lateral force design defined.
For seismic forces acting in the downhill direction,
the base of the building shall be the floor at or closest
to the top of the highest level of the foundation.
1613.9.4.2.2. Base shear. In developing the base shear
for seismic design, the response modification coefficient
(R) shall not exceed 4.5 for bearing wall and building
frame systems. The total base shear shall include the
forces tributary to the base level diaphragm including
forces from the base level diaphragm.
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2008 CITY OF LOS ANGELES BUILDING CODE
STRUCTURAL DESIGN
1613.9.5 Base shear resistance-primary anchors.
1613.9.5.1 General. The base shear in the downhill
direction shall be resisted through primary anchors from
diaphragm struts provided in the base level diaphragm to
the foundation.
1613.9.5.2 Location of primary anchors. A primary
anchor and diaphragm strut shall be provided in line with
each foiindation extending in the downhill direction. Pri-
mary anchors and diaphragm struts shall also be pro-
vided \yhere interior vertical lateral-force^resisting
elements occur above and in contact with the base level
diaphragm. The spacing of primary anchors and dia-
phragm struts or collectors shall in no case exceed 30 feet
(9144 nim).
1613.9;5.3 Design of primary anchors and dia-
phragm struts. Primary anchors and diaphragm struts
shall be designed in accordance with the requirements of
Section 1613.9.8.
1613.9.5.4 Limitations. The following lateral-
force-resisting elements shall not be designed to resist
seismic forces below the base level diaphragm in the
downhill direction:
1. Wood structural panel wall sheathing;
2. Cement plaster and lath;
3. Gypsum wallboard; and
4. Tension only braced frames.
Braced frames designed in accordance with the
requirements of Section 2205.2.2 of this Code may be
used to transfer forces from the primary anchors and dia-
phragm struts to the foundation, provided lateral forces
do not induce flexural stresses in any member of the
frame or in the diaphragm struts. Deflections of frames
shall account for the variation in slope of diagonal mem-
bers when the frame is not rectangular.
1613.9.6 Base shear resistance-secondary anchors.
1613.9.6.1 General. In addition to the primary anchors
required by Section 1613.9.5, the base shear in the down-
hill direction shall be resisted through secondary anchors
in the uphill foundation connected to diaphragm struts in
the base level diaphragm.
Exception: Secondary anchors are not required
where foundations extending in the downhill direc-
tion spaced at not more than 30 feet (9144 mm) on
center extend up to and are directly connected to the
base level diaphragm for at least 70 percent of the dia-
phragm depth.
1613.9.6.2 Secondary anchor capacity and: spacing.
Secondary anchors at the base level diaphragm shall be
designed for a minimum force equal to the base shear,
including forces tributary to the base level diaphragm,
but not less than 600 pounds per lineal foot (8.76 kN/m).
The secondary anchors shall be uniformly distributed
along the uphill diaphragm edge and shall be' spaced a
maximum of 4 feet (1219 mm) on center.
1613.9.6.3 Design. Secondary anchors and diaphragm
struts shall be designed in accordance \yith Section
1613.9.8.
1613.9.7 Diaphragms below the base level— downhill
direction. The following provisions shall apply to the lat-
eral analysis and design of the connections for all dia-
phragms below the base level diaphragm in the downhill
direction.
1613.9.7.1 Diaphragm defined. Every floor level below
the base; level diaphragm shall be designed as a dia-
phragm.
1613.9.7.2 Design force. Each diaphragm below the
base level diaphragm shall be designed for all tributary
loads at that level using a minimum seismic force factor
not less than the base shear coefficient.
1613.9.7.3 Design force resistance-primary anchors.
The design force described in Section 1613.9.7.2 shall be
resisted through primary anchors from diaphragm struts
provided in each diaphragm to the foundation. Primary
anchors shall be provided and designed in accordance
with the requirements and limitations of Section
1613.9.5.
1613.9.7.4 Design force resistance-secondary
anchors.
1613.9.7.4.1 General. In addition to the primary
anchors required in Section 1613.9.7.3, the design
force in the downhill direction shall be resisted
through secondary anchors in the uphill foundation
connected to diaphragm struts in each diaphragm
below the base level.
Exception: Secondary anchors are not required
where foundations extending in the downhill
direction, spaced at not more than 30 feet (9144
mm) on center, extend up to and are directly con-
nected to each diaphragm below the base level for
at least 70 percent of the diaphragm depth.
1613.9.7.4.2 Secondary anchor capacity. Second-
ary anchors at each diaphragm below the base level
diaphragm shall be designed for a minimum force
equal to the design force but not less than 300 pounds
per lineal foot (4.38 kN/m). The secondary anchors
shall be uniformly distributed along the uphill dia-
phragm edge and shall be spaced a maximum of four
feet (1219 mm) on center.
1613.9.7.4.3 Design. Secondary anchors and dia-
phragm struts shall be designed in accordance with
Section 1613.9.8.
1613.9.8 Primary and secondary anchorage and dia-
phragm strut design. Primary and secondary anchors and
diaphragm struts shall be designed in accordance with the
following provisions:
1 . Fasteners. All bolted fasteners used to develop con-
nections to wood members shall be provided with
square plate washers at all bolt heads and nuts.
Washers shall be minimum Vig-inch (4.8 mm) thick
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2008 CITY OF LOS ANGELES BUILDING CODE
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STRUCTURAL DESIGN
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and 2-inch (51 mm) square for Vj-inch (12.7 mm)
diameter bolts, and V4-inch (6.4 mm) thick and
2- Vj-inch (64 mm) square for Vg-inch (15.9 mm) di-
ameter or larger bolts. Nuts shall be wrench tight-
ened prior to covering.
Fastening, The diaphragm to foundation anchorage
shall not be accomplished by the use of toenailing,
nails subject to withdrawal, or wood in cross-grain
bending or cross-grain tension.
Size of wood members. Wood diaphragm struts
collectors and other wood members connected to
primary anchors shall not be less than 3-inch (76
mm) nominal width. The effects of eccentricity on
wood members shall be evaluated as required per
Item 9.
ign. Primary and secondary anchorage, includ-
ing diaphragm struts, splices, and collectors shall be
designed for 125 percent of the tributary force.
■ 5 . Allowable stress increase. The one-third allowable
stress increase permitted under Section 1605.3.2
shall not be taken when the working (allowable)
stress design .method is used.
6. Seismic load factor. The seismic load factor shall
be 1.7 for steel and concrete anchorage when the
strength design method is used.
7. Primary anchors. The load path for primary an-
chors and diaphragm struts shall be fully developed
into the diaphragm and into the foundation. The
foundation must be shown to be adequate to resist
the concentrated loads from the primary anchors.
8. Secondary anchors. The load path for secondary
anchors and diaphragm struts shall be fully devel-
oped in the diaphragm but need not be developed be-
yond the connection to the foundation.
9. Symmetry. All lateral force foundation anchorage
and diaphragm strut connections shall be symmetri-
cal. Eccentric connections may be permitted when
demonstrated by calculation or tests that all compo-
nents of force have been provided for in the struc-
tural analysis or tests.
1 0. Wood ledgers. Wood ledgers shall not be used to re-
sist cross-grain bending or cross-grain tension.
1613.9.9 Lateral-force-resisting elements normal to the
downhill direction.
1613.9.9.1 General. In the direction normal to the down-
hill direction, lateral-force-resisting elements shall be
designed in accordance with the requirements of this sec-
tion.
1613.9.9.2 Base shear. In developing the base shear for
seismic design, the response modification coefficient (R)
shall not exceed 4.5 for bearing wall and building frame
systems.
1613.9.9.3 Vertical distribution of seismic forces. For
seismic forces acting normal to the downhill direction,
the distribution of seismic forces over the height of the
building using Section 12.8.3 of ASCE 7 shall be deter-
mined using the height measured from the top of the
lowest level of the building foundation.
1613.9.9.4 Drift limitations. The story drift below the
base level diaphragm shall not exceed 0.005 times the
story height. The total drift from the base level dia-
phragm to the top of the foundation shall not exceed V4 of
an inch (19 mm). Where the story height or the height
from the base level diaphragm to the top of the founda-
tion varies because of a stepped footing or story offset,
the height shall be measured from the average height of
the top of the foundation. The story drift shall not be
reduced by the effect of horizontal diaphragm stiffness.
Where code-prescribed wind forces govern the design
of the lateral force resisting system normal to the down-
hill direction, the drift limitation shall be 0.0025 for the
story drift and the total drift from the base level dia-
phragm to the top of the foundation may exceed V4 of an
inch (19 mm) when approved by the Department. In no
case, however, shall the drift limitations for seismic
forces be exceeded.
1613.9.9.5 Distribution of lateral forces.
1613.9.9.5.1 General. The design lateral force shall
be distributed to lateral-force-resisting elements of
varying heights in accordance with the stiffness of
each individual element.
1613.9.9.5.2 Wood structural panel sheathed walls.
The stiffness of a stepped wood stmctuj-al panel shear
wall may be determined by dividing the wall into adja-
cent rectangular elements, subject to the same
top-of-wall deflection. Deflections of shear walls may
be estimated by Section 2305.3.2 of this Code. Sheath-
ing and fastening requirements for the stiffest section
shall be used for the entire wall. Each section of wall
shall be anchored for shear and uplift at each step. The
minimum horizontal length of a step shall be 8 feet
(2438 mm) and the maximum vertical height of a step
shall be 2 feet 8 inches (813 mm).
1613.9.9.5.3 Reinforced concrete or masonry
shear walls. Reinforced concrete or masonry shear
walls shall have forces distributed in proportion to the
rigidity of each section of the wall.
1613.9.9.6 Limitations. The following lateral force-
resisting-elements shall not be designed to resist lateral
forces below the base level diaphragm in the direction
normal to the downhill direction:
1. Cement plaster and lath;
2. Gypsum wallboard; and
3. Tension-only braced frames.
Braced frames designed in accordance with the require-
ments of Chapter 22 of this Code may be designed as lat-
eral-force-resisting elements in the direction normal to the
downhill direction, provided lateral forces do not induce
flexural stresses in any member of the frame. Deflections
of frames shall account for the variation in slope of diago-
nal members when the frame is not rectangular.
50dR
2008 CJTY OF LOS ANGELES BUILDING CODE
STRUCTURAL DESIGN
1613.9.10 Specific design provisions.
1613.9.10.1 Footings and grade beams. All footings
and grade beams shall comply with the following:
1. Grade beams shall extend at least 12 inches (305
mm) below the lowest adjacent grade and provide
a minimum 24-inch (610 mm) distance horizon-
tally from the bottom outside face of the grade
beam to the face of the descending slope.
2. Continuous footings shall be reinforced with at
least two No. 4 reinforcing bars at the top and two
No. 4 reinforcing bars at the bottom.
3 . All main footing and grade beam reinforcement steel
shall be bent into the intersecting footing and fuUy
developed around each comer and intersection.
4. All concrete stem walls shall extend from the foun-
dation and be reinforced as required for concrete
or masonry walls.
,10.2 Protection against decay and termites.
All wood to earth separation shall comply with the fol-
lowing:
1 . Where a footing or grade beam extends across a
descending slope, the stem wall, grade beam, or
footing shall extend up to a minimum of 18 inches
(457 mm) above the highest adjacent grade.
Exception: At paved garage and doorway
entrances to the building, the stem wall need
only extend to the finished concrete slab, pro-
vided the wood framing is protected with a
moisture proof barrier.
2. Wood ledgers supporting a vertical load of more
than 100 pounds per lineal foot (1.46 kN/m) and
located within 48 inches (1219 mm) of adjacent
grade are prohibited. Galvanized steel ledgers and
anchor bolts, with or without wood nailers or
treated or decay resistant sill plates supported on a
concrete or masonry seat, may be used.
1613.9.10.3 Sill plates. All sill plates and anchorage
shall comply with the following:
1. All woodframed walls, including nonbearing
walls, when resting on a footing, foundation or
grade beam stem wall shall be supported on wood
sill plates bearing on a level surface.
2. Power-driven fasteners shall not be used to anchor
sill plates except at interior nonbearing Walls not
designed as shear walls.
1613.9.10.4 Column base plate anchorage. The base of
isolated wood posts (not framed into a stud wall) sup-
porting a vertical load of 4000 pounds (17.8 kN) or more
and the base plate for a steel column shall comply with
the following:
1. When the post or column is supported on a pedes-
tal extending above the top of a footing or grade
beam, the pedestal shall be designed and rein-
forced as required for concrete or masonry col-
umns. The pedestal shall be reinforced with a
minimum of four No. 4 bars extending to the
bottom of the footing or grade beam. The top of ex-
terior pedestals shall be sloped for positive drain-
age.
2. The base plate anchor bolts or the embedded por-
tion of the post base and the vertical reinforcing bars
for the pedestal shall be confined with two No. 4 or
three No. 3 ties within the top 5 inches (127 nrni) of
the concrete or masonry pedestal. The base plate an-
chor bolts shall be embedded a minimum of 20 bolt
diameters into the concrete or masonry pedestal.
The base plate anchor bolts and post bases shall be
galvanized and each anchor bolt shall have at least
two galvanized nuts above the base plate.
1613.9.10.5 Steel beam to column supports. All steel
beam to column supports shall be positively braced in
each direction. Steel beams shall have stiffener plates
installed on each side of the beam web at the column. The
stiffener plates shall be welded to each beam flange and
the beam web. Each brace connection or structural mem-
ber shall consist of at least two Vg inch (15.9 mm) diame-
ter machine bolts.
1613.10 Modifications to ASCE 7. Chapter 12 of ASCE 7 is
adopted by reference, except Section 12.12.3 of ASCE 7 is not
adopted. It is replaced with the following modification:
12.12.3 Building separation. All portions of the structure
shall be designed and constructed to act as an integral unit in
resisting seismic forces unless separated structurally by a dis-
tance sufficient to avoid damaging contact under the maximum
inelastic response displacement. The maximum inelastic
response displacement shall be determined at critical locations
with consideration for both translational displacement and tor-
sional displacements of the structure using 8,^ (defined in
Section 12.8.4.3 of ASCE 7) as foUows:
(Formula 12.12-1)
Where 6^ is the Maximum Inelastic Response Displace-
ment, which is the total drift or total story drift that occurs
when the structure is subjected to the Design Basis Ground
Motion, including estimated elastic and inelastic contribu-
tions to the total deformation as determined in Section
12.8.6 of ASCE 7.
All structures shall be separated from adjoining struc-
tures. Adjacent buildings on the same property shall be sep-
arated by at least a distance 5^^^ where
^MT=^|(^M)y+(^M2y
(Formula 12.12-2)
and 6/^1 and 6^2 ^^ the maximum inelastic response dis-
placements of the adjacent buildings.
Where a structure adjoins a property line not common to a
public way, the structure shall also be set back from the prop-
erty line by at least the displacement, 5^, of that structure.
Exception: Smaller separations or property line set-
backs shall be permitted when justified by rational analy-
sis based on maximum expected ground modons.
2008 CITY OF LOS ANGELES BUILDING CODE
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50fR 2008 CITY OF LOS AiSSGELES BUILDING CODE
CHAPTER 17
STRUCTURAL TESTS AND SPECIAL INSPECTIONS
SECTION 1701
GENERAL
1701.1 Scope. The provisions of this chapter shall govern the
quality, workmanship and requirements for materials covered.
Materials of construction and tests shall conform to the appli-
cable standards listed in this code.
1701.2 New materials. New building materials, equipment,
appliances, systems or methods of construction not provided
for in this code, and any material of questioned suitability pro-
posed for use in the construction of a building or structure, shall
be subjected to the tests prescribed in this chapter and in the
approved rules to determine character, quality and limitations
of use.
1701.3 Used materials. The use of second-hand materials that
meet the minimum requirements of this code for new materials
shall be permitted.
SECTION 1702
DEFINITIONS
1702.1 General. The following words and terms shall, for the
purposes of this chapter and as used elsewhere in this code,
have the meanings shown herein.
LA APPROVED AGENCY or APPROVED TESTING
LA AGENCY. An established and recognized agency regularly
L^ engaged in conducting tests or furnishing inspection services
LA which has been approved.
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LA APPROVED FABRICATOR. An established and qualified
LA person, firm or corporation approved by the Superintendent of
[^ Building pursuant to Chapter 17 of this Code and Section
LA 96.200 of the Los Angeles Municipal Code.
CERTIFICATE OF COMPLIANCE. A certificate stating
that materials and products meet specified standards or that
work was done in compliance with approved construction doc-
uments.
DESIGNATED SEISMIC SYSTEM. Those architectural,
electrical and mechanical systems and their components that
require design in accordance with Chapter 13 of ASCE 7 and
for which the component importance factor, 7^, is greater than 1
in accordance with Section 13.1.3 of ASCE 7.
FABRICATED ITEM. Structural, load-bearing or lateral
load-resisting assemblies consisting of materials assembled
prior to installation in a building or structure or subjected to
operations such as heat treatment, thermal cutting, cold work-
ing or reforming after manufacture and prior to installation in a
building or structure. Materials produced in accordance with
standard specifications referenced by this code, such as rolled
structural steel shapes, steel-reinforcing bars, masonry units
and wood structural panels shall not be considered "fabricated
items."
INSPECTION CERTIFICATE. An identification applied on
a product by an approved agency containing the name of the
manufacturer, the function and performance characteristics,
and the name and identification of an approved agency that
indicates that the product or material has been inspected and
evaluated by an approved agency (see Section 1703.5 and
"Label," "Manufacturer's designation" and "Mark").
LABEL. An identification applied on a product by the manu-
facturer that contains the name of the manufacturer, the func-
tion and performance characteristics of the product or material,
and the name and identification of an approved agency and that
indicates that the representative sample of the product or mate-
rial has been tested and evaluated by an approved agency (see
Section 1703.5 and "Inspection certificate," "Manufacturer's
designation" and "Mark").
MAIN WIND-FORCE-RESISTING SYSTEM. An assem-
blage of structural elements assigned to provide support and
stability for the overall structure. The system generally
receives wind loading from more than one surface.
MANUFACTURER'S DESIGNATION. An identification
applied on a product by the manufacturer indicating that a
product or material complies with a specified standard or set of
rules (see also "Inspection certificate," "Label" and "Mark").
MARK. An identification applied on a product by the manu-
facturer indicating the name of the manufacturer and the func-
tion of a product or material (see also "Inspection certificate,"
"Label" and "Manufacturer's designation").
SPECIAL INSPECTION. Inspection as herein required of
the materials, installation, fabrication, erection or placement of
components and connections requiring special expertise to
ensure compliance with approved construction documents and
referenced standards (see Section 1704).
SPECIAL INSPECTION, CONTINUOUS. The full-time
observation of work requiring special inspection by an
approved special inspector who is present in the area where the
work is being performed.
SPECIAL INSPECTION, PERIODIC. The part-time or
intermittent observation of work requiring special inspection
by an approved special inspector who is present in the area
where the work has been or is being performed and at the com-
pletion of the work.
SPRAYED FIRE-RESISTANT MATERIALS.
Cementitious or fibrous materials that are spray applied to pro-
vide fire-resistant protection of the substrates.
STRUCTURAL OBSERVATION. The visual observation of
the structural system by a registered design professional for gen-
eral conformance to the approved construction documents at
significant construction stages and at completion of the struc-
tural system. Structural observation does not include or waive
the responsibility for the inspection required by Sections 109,
Appendix Chapter 1, and 1704 or other sections of this code.
2008 CITY OF LOS ANGELES BUILDING CODE
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STRUCTURAL TESTS AND SPECIAL INSPECTIONS
SECTION 1703
APPROVALS
1703.1 Approved agency. An approved agency shall provide
all information as necessary for the Superintendent of Building
to determine that the agency meets the applicable requirements
pursuant to Section 98.0503 of the Los Angeles Municipal
Code.
1703.2 Written approval. Any material, appliance, equip-
ment, system or method of construction meeting the require-
ments of this Code shall be approved in writing after
satisfactory completion of the required tests and submission of
required test reports pursuant to Sections 98.0501 and 98.0502
of the Los Angeles Municipal Code.
1703.3 Approved record. For any material, appliance, equip-
ment, system or method of construction that has been
approved, a record of that approval, including the conditions
and limitations of the approval, shall be kept on file in the
Department and shall be open to public inspection at appropri-
ate times.
1703.4 Performance. Specific infonnation consisting of test
reports conducted by an approved testing agency in accordance
with standards referenced in Chapter 35 of this Code, or other
information as necessary, shall be provided for the Superinten-
dent of Building to determine that the material meets the appli-
cable Code requirements, including Sections 98.0501 and
98.0502 of the Los Angeles Municipal Code.
1703.4.1 Researcli and investigation. Sufficient technical
data shall be submitted to the Superintendent of Building to
substantiate the proposed use of any material or assembly. If
it is determined that the evidence submitted is satisfactory
proof of performance for the use intended, the Superinten-
dent of Building shall approve the use of the material or
assembly subject to the requirements of this Code. The
costs, reports and investigations required under these provi-
sions shall be paid by the permit applicant as required by
this Code and Sections 98.0501 , 98.0502 and 98.0503 of the
Los Angeles Municipal Code.
1703.4.2 Research reports. Supporting data, where neces-
sary to assist in the approval of materials or assemblies not
specifically provided for in this Code, shall consist of valid
research reports from approved sources as required in Sec-
tions 98.0501 and 98.0502 of the Los Angeles Municipal
Code.
.5 Labeling. Where materials or assemblies are required
by this code to be labeled, such materials and assemblies shall
be labeled by an approved agency in accordance with Section
1703. Products and materials required to be labeled shall be
labeled in accordance with the procedures set forth in Sections
1703.5.1 through 1703.5.3.
1703.5.1 Testing. An approved agency shall test a represen-
tative sample of the product or material being labeled to the
relevant standard or standards. The approved agency shall
maintain a record of the tests performed. The record shall
provide sufficient detail to verify compliance with the test
standard.
1703.5.2 Inspection and identification. The approved
agency shall periodically perform an inspection, which
shall be in-plant if necessary, of the product or material that
is to be labeled. The inspection shall verify that the labeled
product or material is representative of the product or mate-
rial tested.
1703.5.3 Label information. The label shall contain the
manufacturer's or distributor's identification, model num-
ber, serial number or definitive information describing the
product or material's performance characteristics and
approved agency's identification.
1703.6 Heretofore approved materials. The use of any mate-
rial already fabricated or of any construction already erected,
which conformed to requirements or approvals heretofore in
effect, shall be permitted to continue, if not detrimental to life,
health or safety to the public.
1703.7 Evaluation and follow-up inspection services. Where
structural components or other items regulated by this code are
not visible for inspection after completion of a prefabricated
assembly, the permit applicant shall submit a report of each
prefabricated assembly. The report shall indicate the complete
details of the assembly, including a description of the assembly
and its components, the basis upon which the assembly is being
evaluated, test results and similar information and other data as
necessary for the building official to determine conformance to
this code. Such a report shall be approved by the building offi-
cial.
1703.7.1 Follow-up inspection. The permit applicant shall
provide for special inspections of fabricated items in accor-
dance with Section 1704.2.
1703.7.2 Test and inspection records. Copies of necessary
test and inspection records shall be filed with the building
official.
SECTION 1704
SPECIAL INSPECTIONS
1704.1 General. Where application is made for construction as
described in this section, the owner or the registered design
professional in responsible charge who is acting as the owner's
agent shall employ one or more deputy inspectors to provide
inspections during construction on the types of work listed in
Sections 1704 and 1707. The Registered Deputy Inspector
shall be a qualified person as set forth in Section 1704.1.3 and
shall demonstrate competence to the satisfaction of the Super-
intendent of Building for inspection of the particular type of
construction or operation requiring special inspection. The
Registered Deputy Inspector shall be approved by and shall be
responsible to the registered design professional in charge of
the design of the structure.
The special inspections shall be in addition to the inspections
made by the employees of the Department as set forth in Sec-
tion 108 of this Code.
All special inspections shall be made by a Registered Deputy
Inspector. Whenever the term "Special Inspector" is used in
9
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STRUCTURAL TESTS AND SPECIAL INSPECTIONS
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this Code, it shall mean "Registered Deputy Inspector" as
described in Section 1704.1.3.
Exceptions:
1 . Special inspections are not required for work of a mi-
nor nature or as warranted by conditions in the juris-
diction as approved by the Superintendent of
Building.
2. Special inspections are not required for building com-
ponents unless the design involves the practice of pro-
fessional engineering or architecture as defined by
applicable state statutes and regulations governing the
professional registration and certification of engi-
neers or architects.
3. The provisions of Health and Safety Code Part 6, Di-
vision 13 and Chapter 3, Division 1 of Title 25 of the
California Code of Regulations ^ commencing with
Section 3000, shall apply to the construction and in-
spection of factory-built housing as defined in Section
19971 of the Health and Safety Code .
1704.1.1 Statement of special inspections. The permit
applicant shall in accordance with Section 106.3.3 of this
Code submit a statement of special inspections prepared by
the registered design professional in responsible charge as a
condition for permit issuance. The statement of special
inspection shall provide information in accordance with
Section 1705.
Exceptions:
1. A statement of special inspections is not required
for structures designed and constructed in accor-
dance with the conventional construction provi-
sions of Section 2308 of this Code.
2. The statement of special inspections is permitted
to be prepared by a qualified person approved by
the Superintendent of Building for construction
not designed by a registered design professional.
1704.1.2 Report requirement In addition to all the
requirements of Section 1704.1.4, Registered Deputy
Inspectors shall keep records of inspections. The Registered
Deputy Inspector shall furnish inspection reports to the
Superintendent of Building and to the registered design pro-
fessional in responsible charge. Reports shall indicate that
work inspected was done in conformance with approved
construction documents. Discrepancies shall be brought to
the immediate attention of the contractor for correction. If
the discrepancies are not corrected, the discrepancies shall
be brought to the attention of the Superintendent of Building
and to. the registered design professional in responsible
charge prior to the completion of that phase of the work. A
final report documenting required special inspections and
correction of any discrepancies noted in the inspections
shall be submitted at a point in time agreed upon by the per-
mit applicant and the Superintendent of Building prior to the
start of work.
1704.1.3 Registered deputy inspector. AppHcation for
registration as a Registered Deputy Inspector shall be made
to the Superintendent of Building on a form furnished by the
Department. A separate application shall be made for each
type of registration desired.
A committee appointed by the Superintendent of Build-
ing shall examine each applicant as to his or her experience
and training for performing the duties of an inspector of the
type for which application has been made. Additionally, the
applicant will be examined on the applicant's knowledge of
the Los Angeles Municipal Code and Register Deputy
Inspector duties, responsibilities and procedures. When sat-
isfied as to the fitness of the applicant, the Superintendent of
Building shall issue a Certificate of Registration. Upon
application for renewal of a Certificate of Registration, the
applicant shall be reexamined to ascertain the applicant's
fitness to perform the duties of inspector of the type for
which application has been made.
Exception: If the Department determines that the initial
examination (which includes general knowledge, code
requirements and plan comprehension) for the special
inspector program under the International Code Council
(ICC) is equivalent to the above-described initial or
renewal examination, then the Department may accept
the results of the ICC examination in lieu of the Depart-
ment's examination in that category; however, the
Department will be examining the applicant's knowl-
edge of the Los Angeles Municipal Code and deputy
inspector duties, responsibilities and procedures.
The Superintendent of Building shall issue separate Cer-
tificate of Registration for each type of registration requir-
ing special inspection in accordance with Sections 1704 and
1707 and as determined by the Superintendent of Building
for any construction requiring either continuous or periodic
special inspection.
Nothing here shall be deemed to prohibit any one person
from being qualified for more than one type of special
inspection, provided he or she makes application, pays the
required fees, takes the required examinations and is duly
qualified by the Superintendent of Building for each type.
Each Certificate of Registration shall expire three years
from the date of issuance, but may be renewed by the Super-
intendent of Building within a grace period of 30 days there-
after.
The Department shall maintain a list of the names of all
Registered Deputy Inspectors, showing the type of work
each has been authorized to inspect. This list shall be avail-
able to the public.
Upon evidence, satisfactory to the Superintendent of
Building, of incompetence, of willful or negligent failure to
observe or report violations of this Code, or of any other
failure to perform properly and effectively the duties
assumed by a Registered Deputy Inspector, the Superinten-
dent of Building may revoke, suspend or refuse to renew any
Certificate of Registration, but prior to that action, the
holder shall be given an opportunity to appear before the
Superintendent of Building and be heard.
Except where there is an employee of the City of Los
Angeles inspecting buildings or structures being erected or
repaired by the City, no Registered Deputy Inspector shall
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2008 CITY OF LOS ANGELES BUILDING CODE
89R
STRUCTURAL TESTS AND SPECIAL INSPECTIONS
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receive any compensation whatsoever from the City. A Reg-
istered Deputy Inspector shall undertake and perform the
duties of inspection solely on the request of the owner or the
owner's agent. The designation shall be deemed to indicate
that the duties incident to the inspection are within the
course and scope of the Registered Deputy Inspector's
employment by the owner or agent, and except where the
Registered Deputy Inspector is in fact an employee of the
City, the Registered Deputy Inspector shall not be deemed
an employee of the City, the contractor, a subcontractor or a
material vendor for any purpose.
1704.1.4 Duties and responsibilities of the registered
deputy inspector.
1. The Registered Deputy Inspector employed on any
work must be present during the execution of all the
work the Registered Deputy Inspector has undertaken
to inspect. The Registered Deputy Inspector shall no-
tify the Department of the commencement of inspec-
tion of a job and shall specify the type of inspection
for which the Registered Deputy Inspector has been
engaged. This notification shall be made no later than
the last working day preceding the commencement of
inspection. The Registered Deputy Inspector shall re-
port to the job sufficiently in advance of construction
to review the plans and to inspect all materials to be
used or concealed within the work; shall inspect the
construction, erection, placing or other use of the ma-
terials; and shall observe whether there is compliance
with the code as to all of the foregoing. During the ex-
ecution of the work, the Registered Deputy Inspector
shall not undertake or engage in any other task or oc-
cupation that will interfere with the proper perfor-
mance of his or her duties relating to the inspections.
The Registered Deputy Inspector shall report, as di-
rected, to the Superintendent of Building, noting all
violations of this Code that have occurred and any
other information as may be required. At the conclu-
sion of the Registered Deputy Inspector's duties on
any project, which has been completed in accordance
with this Code, the Registered Deputy Inspector shall
submit a report to the Department setting forth the
portion of the work inspected. The report shall be
made on forms supplied by the Department and shall
be fded in the records of the Department.
2. Nothing here shall be deemed to authorize any Regis-
tered Deputy Inspector to approve any inspection re-
quired by this Code, other than the special inspection
for which the Registered Deputy Inspector was hired.
3. Where, in the opinion of the Department, the magni-
tude or complexity of a job is sufficient to warrant, ad-
ditional Registered Deputy Inspectors may be
required.
4. Where, in the opinion of the Department, the Regis-
tered Deputy Inspector is negligent in the perfor-
mance of the Deputy Inspector's duties, the job shall
be stopped.
1704.1.4.1 Fees for registered deputy inspector.
1 . Before accepting an application for registration as
a Registered Deputy Inspector, the Department
shall collect an initial examination fee of $200.00.
A separate application shall be submitted and a
separate initial examination fee shall be collected
for each type of registration desired. When the ap-
plicant passes the initial examination, a Certificate
of Registration fee of $150.00 shall be collected
for each type of initial examination passed.
2. Before renewing a Certificate of Registration as
Registered Deputy Inspector, the Department shall
collect a renewal examination fee in the amount of
$180.00 for each type of registration to be re-
newed. When the applicant passes the renewal ex-
amination, a Certificate of Registration renewal
fee in the amount of $140.00 shall be collected for
each type of renewal examination passed.
3. If the Department accepts the results of the appli-
cant's ICC examination in lieu of taking the De-
partment's initial or renewal examination, then the
Department's initial or renewal examination fee as
specified in this section shall be reduced to $60.00
for each applicable type of registration for which
application has been made. An examination will be
given for each type of registration. Upon passing
the examination, a Certificate of Registration fee
or renewal fee as specified in this section shall be
collected.
1704.1.4.2 Failure to pass examination for registered
deputy inspector.
1. Every applicant who fails to pass an initial exami-
nation shall not be eligible for another examination
until 90 days after taking the previous examina-
tion. Any applicant who fails to pass on the third
try shall not be eligible again until 6 months after
taking the previous examination.
2. Every applicant who fails to pass a renewal exami-
nation shall not be eligible for reexamination until
30 days after taking the previous examination.
1704.2 Inspection of fabricators. Where fabrication of struc-
tural load-bearing members and assemblies is being performed
on the premises of a fabricator's shop, special inspection of the
fabricated items shall be required by this section and as
required elsewhere in this code.
1704.2.1 Fabrication and implementation procedures.
The special inspector shall verify that the fabricator main-
tains detailed fabrication and quality control procedures that
provide a basis for inspection control of the workmanship
and the fabricator's ability to conform to approved construc-
tion documents and referenced standards. The special
inspector shall review the procedures for completeness and
adequacy relative to the code requirements for the fabrica-
tor's scope of work.
Exception: Special inspections as required by Section
1704.2 shall not be required where the fabricator is
approved in accordance with Section 1704.2.2.
89aR
2008 CITY OF LOS ANGELES BUILDING CODE
STRUCTURAL TESTS AND SPECIAL INSPECTIONS
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1704.2.2 Fabricator approval. Pursuant to Section 96.200
of the Los Angeles Municipal Code, special inspections
required by this Code are not required where the work is
done on the premises of an approved fabricator hcensed and
approved to perform the work without special inspection.
Approval shall be based upon review of the fabricator's
written procedural and quality control manuals and periodic
auditing of fabrication practices by the Department. At
completion of fabrication, the approved fabricator shall sub-
mit a certificate of compliance to the Superintendent of
Building stating that the work was performed in accordance
with the approved construction documents.
1704.3 Steel construction. The special inspections for steel
elements of buildings and structures shall be as required by
Section 1704.3 and Table 1704.3.
Exceptions:
1. Special inspection of the steel fabrication process
shall not be required where the fabricator does not
perform any welding, thermal cutting or heating oper-
ation of any kind as part of the fabrication process. In
such cases, the fabricator shall be required to submit a
detailed procedure for material control that demon-
strates the fabricator's ability to maintain suitable re-
cords and procedures such that, at any time during the
fabrication process, the material specification, grade
and niill test reports for the main Stress-carrying ele-
ments are capable of being determined.
2. The special inspector need not be continuously pres-
ent during welding of the following items, provided
the materials, welding procedures and qualifications
of welders are verified prior to the start of the work;
periodic inspections are made of the work in progress;
and a visual inspection of all welds is made prior to
completion or prior to shipment of shop welding.
2. 1 . Single-pass fillet welds not exceeding Vjg inch
(7.9 mm) in size.
2.2. Floor and roof deck welding.
2.3. Welded studs when used for structural dia-
phragm.
2.4. Welded sheet steel for cold-formed steel
framing members such as studs and joists.
2.5. Welding of stairs and railing systems.
1704.3.1 Welding. Welding inspection shall be in compli-
ance with AWS D 1 . 1 . The basis for welding inspector quali-
fication shall be AWS D 1 . 1 .
1704.3.2 Details. The special inspector shall perform an
inspection of the steel frame to verify compliance with the
details shown on the approved construction documents,
such as bracing, stiffening, member locations and proper
application of joint details at each connection.
2008 CITY OF LOS ANGELES BUILDING CODE
89bR
STRUCTURAL TESTS AND SPECIAL INSPECTIONS
TABLE 1704.3
REQUIRED VERIFICATION AND INSPECTION OF STEEL CONSTRUCTION
VERIFICATION AND INSPECTION
CONTINUOUS
PERIODIC
REFERENCED STANDARD"
IBC
REFERENCE
1 . Material verification of high-strength bolts, nuts and
washers:
a. Identification markings to conform to ASTM
standards specified in the approved construction
documents.
—
X
Applicable ASTM material
specifications; AISC 360,
Section A3. 3
—
b. Manufacturer's certificate of compUance required.
—
X
—
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2. Inspection of high-strength bolting:
a. Bearing-type connections.
—
X
AISC 360, Section M2.5
1704.3.3
b. Slip-critical connections.
X
X
3. Material verification of structural steel:
a. Identification markings to conform to ASTM
standards specified in the approved construction
documents.
—
—
ASTM A 6 or ASTM A 568
1708.4
b. Manufacturers' certified mill test reports.
—
—
ASTM A 6 or ASTM A 568
4. Material verification of weld filler materials:
a. Identification markings to conform to AWS specification
in the approved construction documents.
—
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AISC 360, Section A3.5
—
b. Manufacturer's certificate of compliance required.
—
—
—
—
5. Inspection of welding:
—
—
a. Structural steel:
1) Complete and partial penetration groove welds.
X
—
AWSDl.l
1704.3.1
2) Multipass fillet welds.
X
—
3) Single-pass fillet welds > Vj^"
X
—
4) Single-pass fillet welds < ^l^^'
—
X
5) Floor and roof deck welds.
X
AWS D 1.3
—
b. Reinforcing steel:
—
AWSD1.4
ACI 318: 3.5.2
—
1 ) Verification of weldability of reinforcing steel
other than ASTM A 706.
—
X
2) Reinforcing steel-resisting flexural and axial
forces in intermediate and special moment frames,
and boundary elements of special reinforced concrete
shear walls and shear reinforcement.
X
—
3) Shear reinforcement.
X
—
4) Other reinforcing steel.
—
X
6. Inspection of steel frame joint details for compliance
with approved construction documents:
X
—
1704.3.2
a. Details such as bracing and stiffening.
—
—
b. Member locations.
—
— ■
c. AppUcation of joint details at each connection.
—
For SI: 1 inch = 25.4 mm.
a. Where applicable, see also Section 1707.1 , Special inspection for seismic resistance.
90
2008 CITY OF LOS ANGELES BUILDING CODE
STRUCTURAL TESTS AND SPECIAL INSPECTIONS
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engineering, mechanical engineering and certification as air
balancers.
1704.15 Certifications by architect, engineer or geologist. If
a structure or portion of a structure has been designed to utilize
higher stresses' requiring continuous inspection, the architect
or engineer in responsible charge of the design shall certify by
signature to the Department that to the best of his or her knowl-
edge the structure or portion utilizing higher stresses was con-
structed in conformity with the approved design. If the grading
or foundation earthwork has required continuous inspection,
the responsible engineering geologist or soils engineer shall
certify by signature to the Department that to the best of his or
her knowledge the field work was completed in conformity
with the technical design data.
1704.16 Department's responsibility. The employment of a
Registered Deputy Inspector for any work does not deprive the
Department of the right to make periodic or called inspections
of all or portions of the work. On any work requiring continu-
ous inspection by a Registered Deputy Inspector, the called
inspections required by Section 108 of this Code may be dele-
gated to the Registered Deputy Inspector by the Superinten-
dent of Building.
1704.17 Structural, termite and fungus damage. Every
building raised from its foundation shall be inspected. If there
is any superficial evidence of structural damage, termites or
fungus growth, the permittee shall remove and renew the dam-
aged or infested members before reseating the building or mov-
ing it from its existing site or into the City.
1704.18 Emergencies or catastrophes. In the event of an
emergency or of a major catastrophe in the City, the Depart-
ment may deputize Emergency Building Inspectors for the
Department. The inspectors shall receive no compensation
from the City, and they shall be appointed for the periods of
time the Department deems advisable.
1704.19 Controlled activities. In addition to the construction
or work inspected as described in Sections 108 and 1704
through 1718 of this Code, there are other construction activi-
ties that are sufficiently important to the structural stability of
the structure, the occupants of and the fire and life safety of the
structure. An inspection by a specially qualified inspector of
these activities is necessary in order to ensure compliance with
the requirements of this Code. These controlled activities may
occur during off-site fabrication or during on-site construction.
Inspections by Controlled Activity Inspectors will be
required in accordance with regulations promulgated by the
Superintendent of Building where:
1 . The structure is more than five stories or 60 feet ( 1 8 288
mm) in height.
2. The structure exceeds 50,000 square feet (4645 m^) of
ground area or 200,000 square feet (18 580 m^) of total
floor area.
3. Nondestructive structural testing methods are utilized.
4. The quality identification markings of the materials used
are not inspectable after installation.
5. The manner of use of materials precludes full inspection
after installation.
Exception: The Department may waive continuous
or periodic inspection required by this section where
minor quantities are involved and no unusual hazards
exist.
In addition to the projects included in the above categories,
the Superintendent of Building may require controlled activity
inspections, if the Superintendent of Buildings determines that
these inspections are needed to ensure compliance with the
provisions of this Code and the work involves:
1. Unique, novel or innovative construction;
2. Highly complex or intricate construction;
3. Unique, novel or innovative grading, earth support or
foundation procedures; or
4. New methods of construction not yet provided for in the
rules and regulations.
Controlled Activity inspection authority will be issued only
as a supplement to a valid Deputy Inspector registration. The
Superintendent of Building shall adopt rules and regulations
implementing the provisions of this section. These regulations
may establish and set the requirements for different types of
Controlled Activity Inspectors.
1704.19.1 Controlled activity inspection authority.
1704.19.2 Registration. The procedures and conditions of
registration as a Controlled Activity Inspector shall be the
same as applicable to a Registered Deputy Inspector under
Section 1704. 1.3, except that the extent and duration of con-
trolled inspection authority shall be as specified in the rules
and regulations adopted by the Superintendent of Building.
1704.19.3 Duties. Except as otherwise indicated by regula-
tions promulgated by the Superintendent of Building, the
duties and responsibilities for a Controlled Activity Inspec-
tor shall be the same as specified for a Registered Deputy
Inspector under Section 1704.1.4.
1704.19.4 Fees. The procedures for the examination, regis-
tration and renewal of authority as a Controlled Activity
Inspector shall be the same as specified for Registered Dep-
uty Inspectors under Section 1704.1.3. However, the fees
for registration are modified as follows:
Initial authority registration:
Examination, including one class $25.00
Additional classes, per class $6.00
Registration $13.00
Adding classes to existing authority:
Examination and registration, per class .... $13.00
Renewal:
Examination and registration, per class .... $6.00
1704.19.5 Renewal process. Section 1704.1.3 applies to
the application, examination and renewal process for regis-
tration as a Controlled Activity Inspector.
1704.20 Certification of welders.
1704.20.1 The Department shall establish procedures, rules
and regulations for the issuance of Welder's Certifications.
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2008 CITY OF LOS ANGELES BUILDING CODE
97R
STRUCTURAL TESTS AMD SPECIAL INSPECTIONS
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A fee of $ 1 1 0.00 shall be paid on each application for cer-
tification or renewal. Fifty dollars of the fee shall be paid
prior to the Department's examination for a new certifica-
tion and the remaining amount shall be paid after the exami-
nation. Certificates shall be issued for a period of 3 years
and may be renewed for additional 3-year periods.
1704.20,2 The Superintendent of Building shall suspend or
revoke any certificate upon evidence of failure of the person
so certified to conduct welding operations in compliance
with any of the conditions upon which it is based, or where
quality of workmanship is not equivalent to that required by
the code, or for any of the reasons set forth in Article 8,
Chapter IX of the Los Angeles Municipal Code. Any action
shall be in accordance with the provisions of Article 8,
Chapter IX of the Los Angeles Municipal Code.
SECTION 1705
STATER/IENT OF SPECIAL INSPECTIONS
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Where special inspection or testing is
required by Section 1704, 1707 or 1708, the registered design
professional in responsible charge shall prepare a statement of
special inspections in accordance with Section 1705 for
submittal by the permit applicant (see Section 1704.1.1).
1705.2 Content of statement of special inspections. The
statement of special inspections shall identify the following:
1. The materials, systems, components, research reports
and work required to have special inspection or testing
by the Superintendent of Building or by the registered
design professional responsible for each portion of the
work.
2. The type and extent of each special inspection.
3. The type and extent of each test.
4. Additional requirements for special inspection or testing
for seismic or wind resistance as specified in Sections
1705.3, 1705.4, 1707 and 1708.
5. For each type of special inspection, identification as to
whether it will be continuous special inspection or peri-
odic special inspection.
1705.3 Seismic resistance. The statement of special inspec-
tions shall include seismic requirements for the following
cases:
1. The seismic-force-resisting systems in structures as-
signed to Seismic Design Category C, D, E or F in accor-
dance with Section 1613.
2. Designated seismic systems in structures assigned to
Seismic Design Category D, E or F.
3. The following additional systems and components in
structures assigned to Seismic Design Category C:
3.1. Heating, ventilating and air-conditioning
(HVAC) ductwork containing hazardous materi-
als and anchorage of such ductwork.
3.2. Piping systems and mechanical units containing
flammable, combustible or highly toxic materi-
als.
3.3. Anchorage of electrical equipment used for
emergency or standby power systems.
4. The following additional systems and components in
structures assigned to Seismic Design Category D:
4.1. Systems required for Seismic Design Category
C.
4.2. Exterior wall panels and their anchorage.
4.3. Suspended ceiling systems and their anchorage.
4.4. Access floors and their anchorage.
4.5. Steel storage racks and their anchorage, where
the importance factor is equal to 1.5 in accor-
dance with Section 15.5.3 of ASCE 7.
5. The following additional systems and components in
structures assigned to Seismic Design Categoiy E or F:
5.1. Systems required for Seismic Design Categories
C and D.
5.2. Electrical equipment.
Exception: Seismic requirements are permitted to be
excluded from the statement of special inspections for struc-
tures designed and constructed in accordance with the fol-
lowing:
1 . The structure consists of light-frame consti-uction; the
design spectral response acceleration at short periods,
S PS' as determined in Section 1613.5.4, does not ex-
ceed 0.5g; and the height of the stiTicture does not ex-
ceed 35 feet (10 668 mm) above grade plane; or
2. The structure is constructed using a reinforced ma-
sonry structural system or reinforced concrete struc-
tural system; the design spectral response
acceleration at short periods, S^s, as determined in
Section 1613.5.4, does not exceed 0.5g; and the
height of the structure does not exceed 25 feet (7620
mm) above grade plane; or
3. Detached one- or two-family dwellings not exceeding
two stories in height, provided the structure does not
have any of the following plan or vertical irregulari-
ties in accordance with Section 12.3.2 of ASCE 7:
3.1. Torsional irregularity. .
3.2. Nonparallel systems.
3.3. Stiffness irregularity-extreme soft story and
soft story.
3.4. Discontinuity in capacity-weak story.
1705.3.1 Seismic requirements in the statement of spe-
cial inspections. When Section 1705.3 specifies that seis-
mic requirements be included, the statement of special
inspections shall identify the following:
1. The designated seismic systems and seis-
mic-force-resisting systems that are subject to special
inspections in accordance with Section 1705.3.
2. The additional special inspections and testing to be
provided as required by Sections 1707 and 1708 and
other applicable sections of this code, including the
applicable standards referenced by this code.
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1705.4 Wind resistance. The statement of special inspections
shall include wind requirements for structures constructed in
the following areas:
1. In wind Exposure Category B, where the 3 -second-gust
basic wind speed is 120 miles per hour (mph) (52.8 m/s)
or greater.
2. In wind Exposure Category C or D, where the 3-sec-
ond-gust basic wind speed is 1 10 mph (49 m/s) or greater.
1705.4.1 Wind requirements in the statement of special
inspections. When Section 1705.4 specifies that wind
requirements be included, the statement of special inspec-
tions shall identify the main windforce-resisting systems
and wind-resisting components subject to special inspec-
tions as specified in Section 1705.4.2.
1705.4.2 Detailed requirements. The statement of special
inspections shall include at least the following systems and
components:
1 . Roof cladding and roof framing connections.
2. Wall connections to roof and floor diaphragms and
framing.
3. Roof and floor diaphragm systems, including collec-
tors, drag struts and boundary elements.
4. Vertical windforce-resisting systems, including
braced frames, moment frames and shear walls.
5. Windforce-resisting system connections to the foun-
dation.
6. Fabrication and installation of systems or compo-
nents required to meet the impact-resistance require-
ments of Section 1609.1.2.
Exception: Fabrication of manufactured systems or
components that have a label indicating compliance with
the wind-load and impact-resistance requirements of this
code.
SECTION 1706
CONTRACTOR RESPONSIBILITY
1706.1 Contractor responsibility. Each contractor responsi-
ble for the construction of a main wind- or seismic-force-resist-
ing system, designated seismic system or a wind- or
seismic-resisting component listed in the statement of special
inspections shall submit a written statement of responsibility to
the building official and the owner prior to the commencement
of work on the system or component. The contractor's state-
ment of responsibility shall contain the following:
1. Acknowledgment of awareness of the special require-
ments contained in the statement of special inspections;
2. Acknowledgment that control will be exercised to obtain
conformance with the construction documents approved
by the building official;
3. Procedures for exercising control within the contractor's
organization, the method and frequency of reporting and
the distribution of the reports; and
4. Identification and qualifications of the person(s) exercis-
ing such control and their position(s) in the organization.
SECTION 1707
SPECIAL INSPECTIONS FOR SEISMIC
RESISTANCE
1707.1 Special inspections for seismic resistance. Special
inspections itemized in Sections 1707.2 through 1707.11 are
required for the following, unless exempted by the exceptions
of Section 1704.1:
1. The seismic -force-resisting systems in structures as-
signed to Seismic Design Category C, D, E or F as deter-
mined in Section 1613 of this Code.
2. Designated seismic systems in structures assigned to
Seismic Design Category D, E or F.
3. Architectural, mechanical and electrical components in
structures assigned to Seismic Design Category C, D, E
or F that are required in Sections 1707.7 and 1707.8.
1707.2 Structural steel. Continuous special inspection is
required for structural welding in accordance with AISC 341
and during the fabrication and erection of buildings over 160
feet (48 768 mm) in height with structural steel moment-resist-
ing frames. A Registered Deputy Inspector under the supervi-
sion of the engineer responsible for the structural design shall
be present during the performance of all structural welding or
the installation of all high-strength bolts whether in an fabrica-
tor's shop or at the job site.
Exceptions:
1. Single-pass fillet welds not exceeding Vig-inch (7.9
mm) in size.
2. Floor and roof deck welding.
1707.2.1 Certification. For buildings exceeding 160 feet
(48 768mm) in height, the engineer responsible for the
structural design and the general contractor responsible for
the construction, or their competent authorized representa-
tives, shall make periodic inspections of the work at the site
to verify general compliance with the approved plans, speci-
fications and change orders. The engineer and general con-
tractor shall submit a statement in writing to the Department
stating that they know from personal knowledge that the
materials installed and the structural work performed is in
compliance with the approved plans, specifications and
change orders.
The term "personal knowledge" as used above in refer-
ence to the engineer and general contractor is interpreted to
mean the personal knowledge, which is the result of the gen-
eral observation by the engineer and general supervision by
the contractor of the work as is required of and accepted
from both the engineer and general contractor in the super-
intendence of construction of the building and as distin-
guished from the continuous personal superintendence of
the special inspector and/or deputy inspector who are con-
tinuously at the site during the progress of the work. The
exercise of reasonable diligence to obtain the facts is
required and anyone who intentionally remains unaware
may be charged with knowledge. The interpretation of per-
sonal knowledge as it applies to the special inspector and/or
deputy inspector is that the inspector(s) must have actual
personal knowledge that the requirements of the plans and
specifications are being carried out, which is obtained by the
2008 CITY OF LOS ANGELES BUILDING CODE
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inspector's continuous observation of the work of construc-
tion at the site in all stages of its progress.
1707.3 Structural wood. Continuous special inspection is
required during field gluing operations of elements of the seis-
mic-force-resisting system. Periodic special inspection is
required for nailing, bolting, anchoring and other fastening of
components within the seismic-force-resisting system, includ-
ing wood shear walls, wood diaphragms, drag struts, braces,
shear panels and hold-downs.
Exception: Special inspection is not required for wood shear
walls, shear panels and diaphragms, including nailing, bolt-
ing, anchoring and other fastening to other components of the
seismic-force-resisting system, where the fastener spacing of
the sheathing is more than 4 inches (1 02 mm) on center (o.c).
1707.4 Cold-formed steel frammg. Periodic special inspec-
tion is required during welding operations of elements of the
seismic-force-resisting system. Periodic special inspection is
required for screw attachment, bolting, anchoring and other
fastening of components within the seismic-force-resisting
system, including struts, braces, and hold-downs.
1707.5 Pier foundations. Special inspection is required for
pier foundations for buildings assigned to Seismic Design Cat-
egory C, D, E or F in accordance with Section 1613. Periodic
special inspection is required during placement of reinforce-
ment and continuous special inspection is required during
placement of the concrete.
1707.6 Storage racks and access floors. Periodic special
inspection is required during the anchorage of access floors
and storage racks 8 feet (2438 mm) or greater in height in struc-
tures assigned to Seismic Design Category D, E or F.
1707.7 Architectural components. Periodic special inspec-
tion is required during the erection and fastening of exterior
cladding, interior and exterior nonbearing walls and interior
and exterior veneer in structures assigned to. Seismic Design
Category D, E or F.
Exceptions:
1. Special inspection is not required for architectural
components in structures 30 feet (9144 mm) or less in
height.
2. Special inspection is not required for cladding and ve-
neer weighing 5 psf (24.5 N/m^) or less.
3. Special inspection is not required for interior
nonbearing walls weighing 15 psf (73.5 N/m^) or less.
1707.8 Mechanical and electrical components. Special
inspection for mechanical and electrical equipment shall be as
follows:
1 . Periodic special inspection is required during the anchor-
age of electrical equipment for emergency or standby
power systems in structures assigned to Seismic Design
Category C, D, E or F;
2. Periodic special inspection is required during the instal-
lation of anchorage of other- electrical equipment in
structures assigned to Seismic Design Category E or F;
3 . Periodic special inspection is required during installation
of piping systems intended to carry flammable, combus-
tible or highly toxic contents and their associated me-
chanical units in structures assigned to Seismic Design
Category C, D, E or F;
4. Periodic special inspection is required during the instal-
lation of HVAC ductwork that will contain hazardous
materials in structures assigned to Seismic Design Cate-
gory C, D, E or F; and
5. Periodic special inspection is required during the instal-
lation of vibration isolation systems in structures as-
signed to Seismic Design Category C, D, E or F where
the construction documents require a nominal clearance
of 0.25 inches (6.4 mm) or less between the equipment
support frame and restraint.
1707.9 Designated seismic system verifications. The Registered
Deputy Inspector shall examine designated seismic systems
requiring seismic qualification in accordance with Section 1708.5
and verify that the label, anchorage, mounting conforms to the
certificate of compliance and any applicable research report.
1707.10 Seismic isolation system. Periodic special inspection
is required during the fabrication and installation of isolator
units and energy dissipation devices that are part of the seismic
isolation system.
1707.11 Structural inspection — concrete. During the construc-
tion of all buildings over 160 feet (48 768 mm) in height with con-
crete special moment-resisting space frames, a structural
inspector under the supervision of the engineer responsible for the
structural design shall be present to inspect the materials and
workmanship jfor conformance with approved plans, specifica-
tions and change orders involved in construction of the ductile
frames and shear walls. This inspection may be made by one or
more structural inspectors, provided that at least one structural
inspector is present during the placement of all concrete and rein-
forcement in the structural frame and shear walls.
The number of structural inspectors to be provided for each
structure shall be determined by the engineer responsible for
the structural design, provided that more than one structural
inspector shall be provided where the magnitude of a structure
prevents a single inspector from adequately performing the
inspection.
The owner shall provide for each structural inspector. Each
structural inspector shall be paid by the owner directly or
through the person responsible for the structural design. Each
structural inspector shall be responsible to the person who pre-
pared the structural design.
The inspection by the structural inspector or inspectors shall
be in addition to inspections made by Department employees
as specified in Section 108 of this Code and by Registered Dep-
uty Inspectors as specified for other parts of the work in Section
1704.1.
Prior to the issuance of the Certificate of Occupancy, each
structural inspector shall submit a report in writing to the engi-
neer and the Department certifying that the portions of the
structural frame inspected by the inspector were constructed in
accordance with the approved plans, specifications, change
orders and Chapter 19 of this Code.
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2008 CITY OF LOS ANGELES BUILDING CODE
STRUCTURAL TESTS AND SPECIAL INSPECTIONS
SECTION 1708
STRUCTURAL TESTING FOR SEISMIC
RESISTANCE
1708.1 Masonry. Testing and verification of masonry materi-
als and assemblies prior to construction shall comply' with the
requirements of Sections 170,8.1.1 through 1708.1.4,; depend-
ing on the classification of the building or structure or nature of
the occupancy, as defined by this code.
1708.1.1 Empirically designed masonry and glass unit
masonry in Occupancy Category I, II or III. For masonry
designed by Section 2109 or 21 10 or by Chapter i5 or 7 of
ACI 530/ASCE 5/TMS 402 in structures classifiedlas Occu-
pancy Category I, II or III, in accordance with Section
1604.5, certificates of compliance used in masonry con-
struction snail be verified prior to construction.
1708.1.2 Empirically designed masonry and glass unit
masonry ie Occupancy Category IV. The mininaum test-
ing and verification prior to construction for imasonry
designed by Section 2109 or 2110 or by Chapter 5 or 7 of
ACI 530/ASCE 5/TMS 402 in structures classified as Occu-
pancy Category IV, in accordance with Section 1604.5, shall
comply with the requirements of Table 1708. 1 .2.
TABLE 1708.1.2
LEVEL 1 QUALITY ASSURANCE
MINIMUM TESTS AND SUBMITTALS
Certificates of compliance used in masonry construction.
Verification of/^ and/ '^^ prior to construction, except where
specifically exempted by this code. ^^_
1708.1.3 Engineered masonry in Occupancy Category I,
11 or III. The minimum testing and verification prior to con-
struction for masonry designed by Section 2107 or 2108 or
by chapters other than Chapter 5, 6 or 7 of ACI 530/ASCE
5/TMS 402 in structures classified as Occupancy Category
I, II or III, in accordance with Section 1604.5, shall comply
with Table 1708.1.2.
1.4 Engineered masonry in Occupancy Category
IV. The minimum testing and verification prior to construc-
tion for masonry designed by Section 2107 or 2108 or by
chapters other than Chapter 5, 6 or 7 of ACI 530/ASCE
5/TMS 402 in structures classified as Occupancy Category
IV, in accordance with Section 1604.5, shall comply with
Table 1708.1.4.
TABLE 1708.1.4
LEVEL 2 QUALITY ASSURANCE
MINIMUM TESTS AND SUBMITTALS
Certificates of compliance used in masonry construction.
Verification of /^ andf^f^ prior to construction and every 5,000
square feet during construction.
Verification of proportions of materials in mortar and grout as
delivered to the site.
For SI: 1 square foot = 0.0929 m^
1708.2 Testing for seismic resistance. The tests specified in
Sections 1708.3 through 1708.6 are required for the following:
1. The seismic-force-resisting systems in structures as-
signed to Seismic Design Category C, D, E or F, as deter-
mined in Section 1613.
2. Designated seismic systems in structures assigned to
Seismic Design Category D, E or F.
3. Architectural, mechanical and electrical components in
structures assigned to Seismic Design Category C, D, E
or F that are required in Section 1708.5.
1708.3 Reinforcing and prestressing steel. Certified mill test
reports shall be provided for each shipment of reinforcing steel
used to resist flexural, shear and axial forces in reinforced con-
crete intermediate frames, special moment frames and bound-,
ary elements of special reinforced concrete or reinforced
. masonry shear walls i Where ASTM A 615 reinforcing steel is
used to resist earthquake-induced flexural and axial forces in
special moment frames and in wall boundary elements of shear
walls in structures assigned to Seismic Design Category D, E or
F, as determined in Section 1613, the testing requirements of
ACI 3 1 8 shall be met. Where ASTM A 6 1 5 reinforcing steel is
to be welded, chemical tests shall be performed to determine
weldability in accordance with Section 3.5.2 of ACI 318.
1708.4 Structural steel. The testing described in the quality
assurance plan shall be as required by AISC 341 and the addi-
tional requirements in this section. Nondestructive testing shall
be performed by an approved agency and the written report,
including the test results, shall be submitted for evaluation by
the Superintendent of Building. The acceptance criteria for
nondestructive testing shall be as required in AWS Dl.l as
specified by the registered design professional.
Base metal thicker than 1 .5 inches (38 mm), where subject to
through-thickness weld shrinkage strains, shall be ultrasoni-
cally tested for discontinuities behind and adjacent to those
welds after joint completion. Any material discontinuities shall
be accepted or rejected on the basis of ASTM A 435 or ASTM
A 898 (Level 1 criteria) and criteria as established by the regis-
tered design professional(s) in responsible charge and the con-
struction documents.
1708.5 Seismic qualification of mechanical and electrical
equipment. The registered design professional in responsible
charge shall state the applicable seismic qualification require-
ments for designated seismic systems on the construction doc-
uments. Each manufacturer of designated seismic system
components shall test or analyze the component and its mount-
ing system or anchorage and submit a certificate of compliance
for review and acceptance by the registered design professional
in responsible charge of the design of the designated seismic
system and for approval by the building official. Qualification
shall be by an actual test on a shake table, by three-dimensional
shock tests, by an analytical method using dynamic character-
istics and forces, by the use of experience data (i.e., historical
data demonstrating acceptable seismic performance) or by a
more rigorous analysis providing for equivalent safety.
1708.6 Seismically isolated structures. For required system
tests, see Section 17.8 of ASCE 7.
2008 CITY OF LOS ANGELES BUILDING CODE
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SECTION 1709
STRUCTURAL OBSERVATIONS
1709.1 General. Where required by the provisions of Section
1709.2 or 1709.3, the owner shall employ a registered design
professional to perform structural observations as defined in
Section 1702.
The owner or owner's representative shall coordinate and
call a preconstruction meeting between the engineer or archi-
tect responsible for the structural design, structural observer,
contractor, affected subcontractors and deputy inspectors. The
structural observer shall preside over the meeting. The purpose
of the meeting shall be to identify the major structural elements
and connections that affect the vertical and lateral load systems
of die structure and to review scheduling of the required obser-
vations. A record of the meeting shall be included in the first
report submitted to the Superintendent of Building.
Observed deficiencies shall be reported in writing to the
owner's representative, Registered Deputy Inspector, contrac-
tor and the Superintendent of Building. Upon the form pre-
scribed by the Superintendent of Building, the structural
observer shall submit to the Superintendent of Building a writ-
ten statement at each significant construction stage stating that
the site visits have been made and identifying any reported
deficiencies, which, to the best of the structural observer's
knowledge, have not been resolved. A final report by the struc-
tural observer, which states that all observed deficiencies have
been resolved, is required before acceptance of the work by the
Superintendent of Building.
At the conclusion of the work included in the permit, the
structural observer shall submit to the Superintendent of Build-
ing a written statement that the site visits have been made and
shall identify any reported deficiencies that, to the best of the
structural observer's knowledge, have not been resolved.
1709.2 Structiiral observations for seismic resistance.
Structural observations shall be provided for those structures
included in Seismic Design Category D, E or F, as determined
in Section 1613, where one or more of the following conditions
exist:
1 . The structure is classified as Occupancy Category III or
IV in accordance with Section 1604.5.
2. The height of the structure is greater than 75 feet (22 860
mm) above the base.
3. The structure is assigned to Seismic Design Category E,
is classified as Occupancy Category I or II in accordance
with Section 1604.5 and is greater than two stories in
height.
4. When so designated by the registered design profes-
sional in responsible charge of the design.
5. When such observation is specifically required by the
building official.
1. The structure is classified as Occupancy Category III or
IV in accordance with Table 1604.5.
2. The building height is greater than 75 feet (22 860 mm).
3. When so designated by the registered design profes-
sional in responsible charge of the design.
4. When such observation is specifically required by the
building official.
SECTION 1710
DESIGN STRENGTHS OF MATERIALS
1710.1 Conformance to standards. The design strengths and
permissible stresses of any structural material that are identi-
fied by a manufacturer's designation as to manufacture and
grade by mill tests, or the strength and stress grade is otherwise
confirmed to the satisfaction of the building official, shall con-
form to the specifications and methods of design oi' accepted
engineering practice or the approved rules in the absence of
applicable standards.
1710.2 New materials. For materials that are not specifically
provided for in this code, the design strengths and permissible
stresses shall be established by tests as provided for in Section
1711.
SECTION 1711
ALTERNATIVE TEST PROCEDURE
1711.1 General. In the absence of approved rules or other la'
approved standards pertaining to new materials or assemblies, la
the Superintendent of Building shall make, or cause to be [-^
made, any necessary tests and investigations; or the Superin- la
tendent of Building shall accept duly authenticated reports [-^
from approved agencies in respect to the quality and manner of la
use of new materials or assemblies as provided for in Section j^^
104.2.6 of this Code. The cost of all tests and other investiga- la
tions required under the provisions of this Code shall be borne \^
LA
.3 Structural observations for wind requirements.
Structural observations shall be provided for those structures
sited where the basic wind speed exceeds 1 10 mph (49 m/s),
determined from Figure 1609, where one or more of the fol-
lowing conditions exist:
by the permit applicant.
SECTION 1712
TEST SAFE LOAD
1712.1 Where required. Where proposed construction is not
capable of being designed by approved engineering analysis,
or where proposed construction design method does not com-
ply with the applicable material design standard, the system of
construction or the structural unit and the connections shall be
subjected to the tests prescribed in Section 1714. The building
official shall accept certified reports of such tests conducted by
an approved testing agency, provided that such tests meet the
requirements of this code and approved procedures.
SECTION 1713
IN-SITU LOAD TESTS
1713.1 General. Whenever there is a reasonable doubt as to the
stability or load-bearing capacity of a completed building,
structure or portion thereof for the expected loads, an engineer-
ing assessment shall be required. The engineering assessment
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2008 CITY OF LOS ANGELES BUILDING CODE
STRUCTURAL TESTS AND SPECIAL INSPECTIONS
shall involve either a structural analysis or an in-situ load test,
or both. The structural analysis shall be based on actual mate-
rial properties and other as-built conditions that affect stability
or load-bearing capacity, and shall be conducted in accordance
with the applicable design standard. If the structural assess-
ment determines that the load-bearing capacity is less than that
required by the code, load tests shall be conducted in accor-
dance with Section 1713.2. If the building, structure or portion
thereof is found to have inadequate stability or load-bearing
capacity for the expected loads, modifications to ensure struc-
tural adequacy or the removal of the inadequate construction
shall be required.
1713.2 Test standards. Structural components and assemblies
shall be tested in accordance with the appropriate material stan-
dards listed in Chapter 35 . In the absence of a standard that con-
tains an applicable load test procedure, the test procedure shall
be developed by a registered design professional and approved.
The test procedure shall simulate loads and conditions of appli-
cation that the completed structure or portion thereof will be
subjected to in normal use.
1713.3 In-situ load tests. In-situ load tests shall be conducted
in accordance with Section 1713.3.1 or 1713.3.2 and shall be
supervised by a registered design professional. The test shall
simulate the applicable loading conditions specified in Chapter
16 as necessary to address the concerns regarding structural
stability of the building, structure or portion thereof.
1713.3.1 Load test procedure specified. Where a standard
listed in Chapter 35 contains an applicable load test proce-
dure and acceptance criteria, the test procedure and accep-
tance criteria in the standard shall apply. In the absence of
specific load factors or acceptance criteria, the load factors
and acceptance criteria in Section 1713.3.2 shall apply.
1713.3.2 Load test procedure not specified. In the absence
of applicable load test procedures contained within a stan-
dard referenced by this code or acceptance criteria for a spe-
cific material or method of construction, such existing
structure shall be subjected to a test procedure developed by a
registered design professional that simulates applicable load-
ing and deformation conditions. For components that are not
a part of the seismic-load-resisting system, the test load shall
be equal to two times the unfactored design loads. The test
load shall be left in place for a period of 24 hours. The struc-
ture shall be considered to have successfully met the test
requirements where the following criteria are satisfied:
1 . Under the design load, the deflection shall not exceed
the limitations specified in Section 1604.3.
2. Within 24 hours after removal of the test load, the
structure shall have recovered not less than 75 percent
of the maximum deflection.
3. During and immediately after the test, the structure
shall not show evidence of failure.
SECTION 1714
PRECONSTRUCTION LOAD TESTS
1714.1 General. In evaluating the physical properties of mate-
rials and methods of construction that are not capable of being
designed by approved engineering analysis or do not comply
with applicable material design standards listed in Chapter 35,
the structural adequacy shall be predetermined based on the
load test criteria established in this section.
1714.2 Load test procedures specified. Where specific load
test procedures, load factors and acceptance criteria are
included in the applicable design standards listed in Chapter
35, such test procedures, load factors and acceptance criteria
shall apply. In the absence of specific test procedures, load fac-
tors or acceptance criteria, the corresponding provisions in
Section 1714.3 shall apply.
1714.3 Load test procedures not specified. Where load test
procedures are not specified in the applicable design standards
listed in Chapter 35, the load-bearing and deformation capacity
of structural components and assemblies shall be determined
on the basis of a test procedure developed by a registered
design professional that simulates applicable loading and
deformation conditions. For components and assemblies that
are not a part of the seismic-load-resisting system, the test shall
be as specified in Section 1714.3.1. Load tests shall simulate
the applicable loading conditions specified in Chapter 16.
1714.3.1 Test procedure. The test assembly shall be sub-
jected to an increasing superimposed load equal to not less
than two times the superimposed design load. The test load
shall be left in place for a period of 24 hours. The tested
assembly shall be considered to have successfully met the
test requirements if the assembly recovers not less than 75
percent of the maximum deflection within 24 hours after the
removal of the test load. The test assembly shall then be
reloaded and subjected to an increasing superimposed load
until either structural failure occurs or the superimposed
load is equal to two and one-half times the load at which the
deflection limitations specified in Section 1714.3.2 were
reached, or the load is equal to two and one-half times the
superimposed design load. In the case of structural compo-
nents and assemblies for which deflection limitations are
not specified in Section 1714.3.2, the test specimen shall be
subjected to an increasing superimposed load until struc-
tural failure occurs or the load is equal to two and one -half
times the desired superimposed design load. The allowable
superimposed design load shall be taken as the lesser of:
1. The load at the deflection limitation given in Section
1714.3.2.
2. The failure load divided by 2.5.
3. The maximum load applied divided by 2.5.
1714.3.2 Deflection. The deflection of structural members
under the design load shall not exceed the limitations in Sec-
tion 1604.3.
1714.4 Wall and partition assemblies. Load-bearing wall and
partition assemblies shall sustain the test load both with and
without window framing. The test load shall include all design
load components. Wall and partition assemblies shall be tested
both with and without door and window framing.
1714.5 Exterior window and door assemblies. The design
pressure rating of exterior windows and doors in buildings
shall be determined in accordance with Section 1714.5.1 or
1714.5.2.
2008 CITY OF LOS ANGELES BUILDING CODE
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STRUCTURAL TESTS- AMD SPECIAL INSPECTIONS
ni: Structural wind load design pressures for win-
dow units smaller than the size tested in accordance with
Section 1714.5.1 or 1714.5.2 shall be permitted to be higher
than the design value of the tested unit provided such higher
pressures are determined by accepted engineering analysis.
All components of the small unit shall be the same as the
tested unit. Where such calculated design pressures are
used, they shall be validated by an additional test of the win-
dow unit having the highest allowable design pressure.
1714.5.1 Exterior wmdows and doors. Exterior windows
and sliding doors shall be tested and labeled as conforming
to AAMAAVDMA/CSA101/I.S.2/A440. The label shall
state the name of the manufacturer, the approved labeling
agency and the product designation as specified in AAMA/
WDMA/CSA101/I.S.2/A440. Exterior side-hinged doors
shall be tested and labeled as conforming to
AAMAA^aDMA/CSA101/I.S.2/A440 or comply with Sec-
tion 1714.5.2. Products tested and labeled as conforming to
AAMAAVDMA/CSA 101/I.S.2/A440 shall not be subject
to the requirements of Sections 2403.2 and 2403.3.
1714.5.2 Exterior windows amd door assemblies not pro-
vided for in Section 1714.5.1. Exterior window and door
assemblies shall be tested in accordance with ASTM E 330.
Exterior window and door assemblies containing glass shall
comply with Section 2403. The design pressure for testing
shall be calculated in accordance with Chapter 16. Each
assembly shall be tested for 10 seconds at a load equal to 1.5
times the design pressure.
1714.(6 Test specimens. Test specimens and construction shall
be representative of the materials, workmanship and details
normally used in practice. The properties of the materials used
to construct the test assembly shall be determined on the basis
of tests on samples taken from the load assembly or on repre-
sentative samples of the materials used to construct the load test
assembly. Required tests shall be conducted or witnessed by an
approved agency.
SECTION 1715
AND TEST STANDARDS
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1715.1 Test standards for joist hangers and connectors.
1715.1.1 Test standards for joist hangers. The vertical
load-bearing capacity, torsional moment capacity and
deflection characteristics of joist hangers shall be deter-
mined in accordance with ASTM D 1761 using lumber hav-
ing a specific gravity of 0.49 or greater, but not greater than
0.55, as determined in accordance with AF&PA NDS for
the joist and headers. Required testing shall be conducted or
witnessed by an approved agency.
tion: The joist length shall not be required to
exceed 24 inches (610 mm).
1715,1.2 Vertical load capacity for joist hangers. The ver-
tical load capacity for the joist hanger shall be determined by
testing a minimum of three joist hanger assembhes as speci-
fied in ASTM D 1761 . If the ultimate vertical load for any one
of the tests varies more than 20 percent from the average ulti-
mate vertical load, at least three additional tests shall be con-
ducted. The allowable vertical load of the joist hanger shall be
the lowest value determined from the following:
1 . The lowest ultimate vertical load for a single hanger
from any test divided by three (where three tests are
conducted and each ultimate vertical load does not
vary more than 20 percent from the average ultimate
vertical load).
2. The average ultimate vertical load for a single hanger
from all tests divided by three (where six or more tests
are conducted).
3. The average from all tests of the vertical loads that
produce a vertical movement of the joist with respect
to the header of 0.125 inch (3.2 mm).
4. The sum of the allowable design loads for nails or
other fasteners utilized to secure the joist hanger to the
wood members and allowable bearing loads that con-
tribute to the capacity of the hanger.
5. The allowable design load for the wood members
forming the connection.
1715.1.3 Torsional moment capacity for Joist hangers.
The torsional moment capacity for the joist hanger shall be
determined by testing at least three joist hanger assemblies
as specified in ASTM D 1761. The allowable torsional
moment of the joist hanger shall be the average torsional
moment at which the lateral movement of the top or bottom
of the joist with respect to the original position of the joist is
0.125 inch (3.2 mm).
1715.1.4 Design value modifications for Joist hangers.
Allowable design values for joist hangers that are determined
by Item 4 or 5 in Section 1715.1.2 shall be permitted to be
modified by the appropriate duration of loading factors as
specified in AF&PA NDS but shall not exceed tiie direct loads
as determined by Item 1 , 2 or 3 in Section 1715.1.2. .Allowable
design values determined by Item 1, 2or3 in Section 1715.1.2
shall not be modified by duration of loading factors. '
1715.2 Concrete and clay roof tiles. Required tests for con- [-^
Crete and clay roof tiles shall be conducted or witnessed by an la
approved testing agency. ^^
1715.2.1 Overturning resistance. Concrete and clay roof
tiles shall be tested to determine their resistance to overturn-
ing due to wind in accordance with SBCCI SSTD 1 1 and
Chapter 15.
1715.2.2 Wind tunnel testing. When roof tiles do not sat-
isfy the limitations in Chapter 16 for rigid tile, a wind tunnel
test shall be used to determine the wind characteristics of the
concrete or clay tile roof covering in accordance with
SBCCI SSTD 11 and Chapter 15.
^0f
SECTION 1716
CERTIFIED LICENSED CONTRACTORS
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1716.1 Registration. Application for registration as a certified [-^
licensed contractor shall be made to the Superintendent of LAi
building on a form furnished by the Department and a separate [-^'
application shall be made for each type of registration desired, la
Before the application can be accepted, the applicant must fur- [^
nish proof satisfactory to the Department that the applicant la
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2008 CITY OF LOS ANGELES BUILDING CODE
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holds a valid active California State Contractor's License in the
same specialty as the certification requested.
1716.2 Application.
1716.2.1 Forms. Application for si Certificate of Registra-
tion shall be made on a form furnished by the Department.
1716.2.2 Information necessary. The application shall
bear the name and address of the applicant and, if the appli-
cant is employed by a firm, partnership or corporation, the
names of the principal officers should also be included. The
application shall carry other information deemed necessary
by the Department.
1716.2.3 Verification. The applicant shall declare that the
information contained in the application is true and correct.
1716.2.4 Fee. The application shall be accompanied by an
examination fee of $ 1 25 .
1716.3 Examination.
1716.3.1 Examination required. Before issuance of a Cer-
tificate of Registration, the applicant shall have successfully
passed the examination required for the issuance of the Cer-
tificate of Registration within 90 days preceding the date of
the issuance. To be eligible for the examination for a Certifi-
cate of Registration, the applicant shall have a valid Califor-
nia State Contractor's License in an appropriate specialty
and a valid City Business Tax Certificate.
1716.3.2 Board of examiners. The Superintendent of
Building and/or Board of Examiners composed of three
qualified persons appointed by the Superintendent shall
conduct examinations.
The results of every examination shall be subject to the
approval of the Superintendent of Building.
Each examiner shall serve at the pleasure of the Superin-
tendent of Building and shall serve for a period of 1 year
unless reappointed by the Superintendent of Building.
1716.3.3 Scope of examination. The examination shall, in
the judgment of the Superintendent of Building, fairly
determine the ability of the applicant to perform properly
the work, which he or she would be authorized to do by the
Certificate of Registration requested, and may include the
following:
1 . A written test.
2. Practical tests as may be required.
3. An oral interview as may be required.
4. Other tests as may be required by the Board of Ex-
aminers.
1716.3.4 Time of examination. The applicant shall be
examined as soon as practicable after filing an application.
1716.3.5 Rules and regulations. The Department shall
have the authority to establish rules and regulations for the
conduct of examinations.
1716.3.6 Fitness of applicant. Any applicant may be
required to submit satisfactory proof of his or her fitness to
carry out the intent of this Code.
1716.3.7 Failure to pass. An applicant who fails to pass an
examination shall not be eligible for another examination
until 4 weeks after taking the previous examination.
1716.4 Issuance of certificates.
1716.4.1 The Superintendent of Building shall issue sepa-
rate Certificates of Registration for each of the following
categories:
1. FAU/AC units; evaporative coolers.
2. Domestic water piping/plumbing fixtures/hot water
heaters/solar panels.
3. Reroofing and roof repair.
4. Electrical equipment/fixtures/smoke detectors.
5. Masonry and concrete fences.
6. Masonry chimney repairs.
7. Shower pan replacement.
Nothing here prohibits any person from being qualified
for more than one type of certification, provided the person
makes application, pays the required fees, takes the required
examinations and is duly qualified by the Superintendent of
Building for each type of certification.
1716.4.2 Upon payment of a $30.00 fee, the Department
may issue a Certificate of Registration to every applicant
who passes the required examination for a Certified
Licensed Contractor.
1716.4.3 Each Certificate of Registration shall expire three
years from the date of issuance.
1716.4.4 The Superintendent of Building shall keep on file a
list, open to public inspection, of the names of all registered
certified licensed contractors, showing the type of work
each has been authorized to inspect.
1716.4.5 Renewal of certificates. Expired Certificates of
Registration may be renewed at any time within 12 months
following the date of expiration. However, after the first
month, the renewal fee shall be increased ten percent for
each subsequent month.
After a Certificate of Registration has been expired for
one year, it may not be renewed; rather, a new application
for a new certificate must be submitted at that time.
1716.5 Exhibition of certificate.
1716.5.1 Every person having a fixed place of business shall
keep his or her Certificate of Registration posted in some
conspicuous location at his or her place of business during
the time the certificate is in force.
1716.5.2 Every person not having a fixed place of business
shall carry his or her Certificate of Registration with him or
her at all times while doing any inspections or other work
pursuant to this certificate.
1716.6 Revocation of certificate. The Superintendent of
Building may revoke, suspend or refuse to renew any Certifi-
cate of Registration upon a showing of incompetence, willful
or negligent failure to observe or report violations of this Code,
or failure to maintain a valid active California State Contrac-
tor's License in the same specialty as the certification. Prior to
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2008 CITY OF LOS ANGELES BUILDING CODE
102cR
STRUCTURAL TESTS AND SPECIAL INSPECTIONS
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any action, the holder shall be given an opportunity to appear
before the Superintendent of Building and be heard.
Suspension or revocation of any Certificate of Registration
issued under this section shall be in accordance with the provi-
sions of Article 8, Chapter IX of the Los Angeles Municipal
Code.
SECTION 1717
CERTIFIED SECURITY BAR INSTALLER
1717.1 General. A certified security bar installer may certify
to the Department of Building and Safety that any bars, grilles,
grates, security rolldown shutters, or similar devices installed
on required emergency escape windows or doors meet the
requirements of Section 6304.3 of this Code.
The Department may allow the use of a certified installer if:
1 . The certified installer obtains a Certificate of Registra-
tion in accordance with the provisions of this section.
2. The certified installer files with the Department a Certifi-
cate of Compliance for each dwelling unit for which cer-
tification is being made. The Certificate of Compliance
shall be on a form provided by the Department and shall
be signed by the property owner and the certified in-
staller.
3. The Certificate of Compliance processing fee is paid in
accordance with Section 107.7 of this Code.
4. The certified installer files the Certificate of Compliance
with the Department within 15 days after completion of
the installation.
1717.2 Registration. A certified installer shall obtain a Certifi-
cate of Registration from the Department of Building and
Safety.
1717.3 Application.
1717.3.1 Forms. Application for a certified security bar
installer Certificate of Registration shall be made on a form
furnished by the Department.
1717.3.2 Information necessary. The application shall
bear the name and address of the applicant and, if a firm,
partnership or corporation, the names of the principal offi-
cers. The application shall carry other information deemed
necessary by the Department.
1717.3.3 Verification. The applicant shall declare that the
information contained in the application is true and correct.
1717.3.4 Fees. The application shall be accompanied by an
examination fee of $125.00.
1717.4 Examination.
1717.4.1 Examination required. Before any person shall
be issued a Certificate of Registration, the applicant, who
must be an officer in the case of a firm, partnership or corpo-
ration, shall have successfully passed the examination
required for the issuance of the certificate within 90 days
preceding the date of the issuance.
1717.4.2 Experience required. To be eligible for the exam-
ination for a Registration Certificate, the applicant shall
have a valid California State Contractor's License in an
appropriate specialty and a valid City Business Tax Certifi-
cate.
1717.4.3 Board of examiners. The Superintendent of
Building or a Board of Examiners composed of three quali-
fied persons appointed by the Superintendent shall conduct
examinations.
The results of every examination shall be subject to the
approval of the Superintendent of Building.
Each examiner shall serve at the pleasure of the Superin-
tendent of Building and shall serve for a period of one year
unless reappointed by the Superintendent of Building.
1717.4.4 Scope of examination. The examination shall, in
the judgment of the board, fairly determine the ability of the
applicant to perform properly the work, which he or she
would be authorized to do by the certificate requested, and
may include the following:
1. A written test.
2. Practical tests as may be required.
3. An oral interview as may be required.
4. Other tests as may be required by the Board of Exam-
iners.
1717.4.5 Time of examination. The applicant shall be
examined as soon as practicable after filing an application.
1717.4.6 Rules and regulations. The Department shall
have the authority to establish rules and regulations for the
conduct of examinations.
1717.4.7 Fitness of applicant. Any applicant for a certifi-
cate may be required to submit satisfactory proof of his or
her fitness to carry out the intent of this Code.
1717.4.8 Failure to pass. Every applicant who fails to pass
an examination shall not be eligible for another examination
until four weeks after taking the previous examination. Any
applicant who fails to pass on the third try shall not be eligi-
ble again until 6 months after taking the previous examina-
tion.
1717.5 Issuance of certificates.
1717.5.1 Upon the payment of a $90.00 fee, the Department
may issue a Certificate of Registration to every appUcant
who passes the required examination for a certified security
bar installer.
1717.5.2 Renewal of certificates. Expired certificates may
be renewed at any time within 12 months following the date
of expiration. However, after the first month, the renewal fee
shall be increased by ten percent for each subsequent
month. After a certificate has been expired for one year, it
may not be renewed; however, an applicant may apply for a
new certificate at that time.
1717.6 Exhibition of certificate.
1717.6.1 Every person having a fixed place of business shall
keep his or her Certificate of Registration posted in some
conspicuous location at his or her place of business during
the time the certificate is in force.
1717.6.2 Every person not having a fixed place of business
shall carry his or her Certificate of Registration with him or
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2008 CITY OF LOS ANGELES BUILDING CODE
STRUCTURAL TESTS AND SPECIAL INSPECTIONS
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her at all times while doing any work pursuant to this certifi-
cate.
1717.7 Revocation of Certificate. Any certificate may be sus-
pended or revoked in accordance with the provisions of Article
8, Chapter IX of the Los Angeles Municipal Code.
1717.8 Transfer of Certificate. No certificate shall be trans-
ferable. A Certificate of Registration issued to a firm, partner-
ship or corporation may not be transferred. The dissolution of a
firm, partnership or corporation renders the certificate void.
SECTION 1718
PREFABRICATED CONSTRUCTION
LA 1718.1 General.
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1718.1.1 Purpose. The purpose of this section is to regulate
materials and establish methods of safe construction where
any structure or portion of the structure is wholly or partially
prefabricated.
1718.1.2 Scope. Unless otherwise specifically stated in this
section, all prefabricated construction and all materials used
in the construction shall conform to all the requirements of
this Code, (see Section 104.2.6 of this Code.)
1718.1.3 Definition.
PREFABRICATED ASSEMBLY. A structural unit, the
integral parts of which have been built up or assembled prior
to incorporation in the building.
1718.2 Tests of materials. Every approval of a material not
specifically mentioned in this Code shall incorporate as a pro-
viso, the kind and number of tests to be made during prefabri-
cation.
1718.3 Tests of assemblies. The Superintendent of Building
may require special tests to be made on assemblies to deter-
mine their durability and weather resistance.
1718.4 Connections. See Section 1611.11.1 of this Code for
design requirements of connections for prefabricated assem-
blies.
1718.5 Pipes and conduits. See Section 1611.11.2 of this
Code for design requirements for removal of material for pipes,
conduits and other equipment.
1718.6 Certificate and inspection.
1718.6.1 Materials. Materials and the assembly of materi-
als shall be inspected to determine compliance with this
Code. Every material shall be graded, marked or labeled
where required elsewhere in this Code.
1718.6.2 Certificate. A Certificate of Approval shall be fur-
nished with every prefabricated assembly, except where the
assembly is readily accessible to inspection at the site. The
Certificate of Approval shall certify that the assembly in
question has, been inspected and meets all the requirements
of this Code. When mechanical equipment is installed so
that it cannot be inspected at the site, the Certificate of
Approval shall certify that the equipment complies with all
applicable laws and regulations.
1718.6.3 Certifying agency. To be acceptable under this [^
Code, every Certificate of Approval shall be made by an la
approved agency.
1718.6.4 Field erection. Placement of prefabricated assem
blies at the building site shall be inspected by the Depart
ment to determine compliance with this Code.
1718.6.5 Continuous inspection. If continuous inspection la
is required for certain materials where construction takes \^
place on the site, it shall also be required where the same la
materials are used in prefabricated construction. l^
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2008 CITY OF LOS ANGELES BUILDING CODE
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102fR 2008 CITY OF LOS ANGELES BUILDING CODE
CHAPTER 18
SOILS AND FOUNDATIONS
*
SECTION 1801
GENERAL
1801.1 Scope. The provisions of this Chapter shall apply to
building and foundation systems in those areas not subject to
scour or water pressure by wind and wave action. Buildings
and foundations subject to those scour or water pressure loads
shall be designed in accordance with Chapter 16 of this Code.
Requirements governing excavation, grading and earthwork
construction, including fills and embankments are set forth in
Chapter 70 of this Code.
Hillside buildings (buildings constructed on slopes steeper
than one unit vertical in three units horizontal (33.3-percent
slope) shall comply with Section 1613.9 of this Code (seismic
design provisions for hillside buildings) and this Chapter.
1801.2 Design. Allowable bearing pressures, allowable stresses
and design formulas provided in this chapter shall be used with the
allowable stress design load- combinations specified in Section
1605.3. The quality and design of materials used structurally in
excavations, footings and foundations shall conform to the
requirements specified in Chapters 16, 19, 21, 22 and 23 of this
code. Excavations and fills shall also comply with Chapter 33.
[HCD 1] For limited-density owner-built rural dwellings,
pier foundations, stone masonry footings and foundations,
pressure -treated lumber, poles, or equivalent foundation
materials or designs may be used provided that the bearing
is sufficient for the purpose intended.
1801.2.1 Foundation design for seismic overturning.
Where the foundation is proportioned using the load combi-
nations of Section 1605.2, and the computation of the seis-
mic overturning moment is by the equivalent lateral-force
method or the modal analysis method, the proportioning
shall be in accordance with Section 12.13.4 of ASCE 7.
SECTION 1802
FOUNDATION AND SOILS INVESTIGATIONS
1802.1 General. Foundation and soils investigations shall be con-
ducted in conformance with Sections 1802.2 through 1802.8.
Where required by the building official, the classification and inves-
tigation of the soil shall be made by a registered design professional.
1802.1.1 General and where required for applications
listed in Section 108.2.1.1 regulated by the Department of
Housing and Community Development. [HCD 1] Founda-
tion and soils investigations shall be conducted in confer-
ence with Health and Safety Code Sections 17953 through
1 7955 as summarized below.
1802.1.1.1 Preliminary soil report. Each city, county, or
city and county shall enact an ordinance which requires
a preliminary soil report, prepared by a civil engineer
who is registered by the state. The report shall be based
upon adequate test borings or excavations, of every sub-
division, where a tentative and final map is required pur-
suant to Section 66426 of the Government Code.
The preliminary soil report may be waived if the build-
ing department of the city, county or city and county, or
other enforcement agency charged with the administra-
tion and enforcement of the provisions of this part, shall
determine that, due to the knowledge such department
has as to the soil qualities of the soil of the subdivision or
lot, no preliminary analysis is necessary.
1802.1.1.2 Soil investigation by lot, necessity, prepara-
tion, and recommendations. If the preliminary soil
report indicates the presence of critically expansive soils
or other soil problems which, if not corrected, would lead
to structural defects, such ordinance shall require a soil
investigation of each lot in the subdivision.
The soil investigation shall be prepared by a civil engineer
who is registered in this state. It shall recommend corrective
action which is likely to prevent structural damage to each
dwelling proposed to be constructed on the expansive soil.
1802.1.1.3 Approval, building permit conditions, appeal.
The building department of each city, county or city and
county, or other enforcement agency charged with the
administration and enforcement of the provisions of this
part, shall approve the soil investigation if it determines
that the recommended action is likely to prevent structural
damage to each dwelling to be constructed. As a condition
to the building permit, the ordinance shall require that the
approved recommended action be incorporated in the
construction of each dwelling. Appeal from such determi-
nation shall be to the local appeals board.
1802.2 Where required. The owner or applicant shall submit a
foundation and soils investigation to the building official where
required in Sections 1802.2.1 through 1802.2.7.
Exception: The building official need not require a founda-
tion or soils investigation where satisfactory data from adja-
cent areas is available that demonstrates an investigation is
not necessary for any of the conditions in Sections 1 802.2. 1
through 1802.2.6.
[OSHPD 2] Geotechnical reports are not required for
one-story, wood-frame and light- steel- frame buildings
of Type V construction and 4,000 square feet (371 m^) or
less in floor area, not located within Earthquake Fault
Zones or Seismic Hazard Zones as shown in the most
recently published maps from California Geological
Survey (CGS). Allowable foundation and lateral soil
pressure values may be determined from Table 1804.2.
1802.2.1 Questionable soil. Where the classification,
strength or compressibiUty of the soil are in doubt or where
a load-bearing value superior to that specified in this code is
claimed, the building official shall require that the necessary
investigation be made. Such investigation shall comply with
the provisions of Sections 1802.4 through 1802.6.
1802.2.2 Expansive soils. In areas likely to have expansive
soil, the building official shall require soil tests to determine
where such soils do exist.
2008 CITY OF LOS ANGELES BUILDING CODE
125R
SOILS AND FOUNDATIONS
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1802.2.3 Ground-water table. A subsurface soil investi-
gation shall be performed to determine whether the histori-
cal high ground- water table is above or within 5 feet (1524
mm) below the elevation of the lowest floor level where the
lowest floor level is located below the finished ground level
adjacent to the foundation.
Exception: A subsurface soil investigation shall not be
required where waterproofing is provided in accordance
with Section 1807.
1802.2.4 Pile and pier foundations. Pile and pier founda-
tions shall be designed and installed on the basis of a foun-
dation investigation and report as specified in Sections
1802.4 through 1802.6 and Section 1808.2.2.
1802.2.5 Rock strata. Where subsurface explorations at the
project site indicate variations or doubtful characteristics in
the structure of the rock upon which foundations are to be
constructed, a sufficient number of borings shall be made to a
depth of not less than 1 feet (3048 mm) below the level of the
foundations and to a depth that would allow investigation of
any unsupported bedding planes or any other rock disconti-
nuities that could influence the foundation stability to provide
assurance of the soundness of the foundation bed and its
load-bearing capacity.
1802.2.6 Seismic Design Category C. Where a structure is
determined to be in Seismic Design Category C in accor-
dance with Section 1613, an investigation shall be conducted
and shall include an evaluation of the following potential haz-
ards resulting from earthquake motions: slope instability, hq-
uefaction and surface rupture due to faulting or lateral
spreading.
L2.7 Seismic Design Category D, E or E Where the
structure is determined to be in Seismic Design Category D,
E or F, in accordance with Section 1613, the soils investiga-
tion requirements for Seismic Design Category C, given in
Section 1802.2.6, shall be met, in addition to the following.
The investigation shall include:
1 . A determination of lateral pressures on basement and
retaining walls due to earthquake motions.
2. An assessment of potential consequences of any liq-
uefaction and soil strength loss, including estimation
of differential settlement, lateral movement or reduc-
tion in foundation soil-bearing capacity, and shall ad-
dress mitigation measures. Such measures shall be
given consideration in the design of the structure and
can include but are not hmited to ground stabilization,
selection of appropriate foundation type and depths,
selection of appropriate structural systems to accom-
modate anticipated displacements or any combina-
tion of these measures. The potential for liquefaction
and soil strength loss shall be evaluated for site peak
ground acceleration magnitudes and source charac-
teristics consistent with the design earthquake ground
motions. Peak ground acceleration shall be deter-
mined from a site-specific study taking into account
soil amplification effects, as specified in Chapter 21
ofASCE7.
Exception: A site-specific study need not be per-
formed, provided that peak ground acceleration
equal to Sps /2.5 is used, where S^s is determined in
accordance with Section 21.2.1 of ASCE 7.
1802.3 Soil classification. Where required, soils shall be clas-
sified in accordance with Section 1802.3.1 or 1802.3.2.
1802.3.1 General. For the purposes of this chapter, the defi-
nition and classification of soil materials for use in Table
1804.2 shall be in accordance with ASTM D 2487.
1802.3.2 Expansive soils. Soils meeting all four of the fol-
lowing provisions shall be considered expansive, except
that tests to show compliance with Items 1 , 2 and 3 shall not
be required if the test prescribed in Item 4 is conducted:
1. Plasticity index (PI) of 15 or greater, determined in
accordance with ASTM D 4318.
2. More than 10 percent of the soil particles pass a No.
200 sieve (75 |Lim), determined in accordance with
ASTM D 422.
3 . More than 1 percent of the soil particles are less than
5 micrometers in size, determined in accordance with
ASTM D 422.
4. Expansion index greater than 20, determined in ac-
cordance with ASTM D 4829.
1802.4 Investigation. Soil classification shall be based on
observation and any necessary tests of the materials disclosed
by borings, test pits or other subsurface exploration made in
appropriate locations. Additional studies shall be made as nec-
essary to evaluate slope stability, soil strength, position and
adequacy of load-bearing soils, the effect of moisture variation
on soil-bearing capacity, compressibility, liquefaction and
expansiveness.
1802.4.1 Exploratory boring. The scope of the soil investi-
gation including the number and types of borings or
soundings, the equipment used to drill and sample, the
in-situ testing equipment and the laboratory testing program
shall be determined by a registered design professional.
1802.5 Soil boring and sampling. The soil boring and sam-
pling procedure and apparatus shall be in accordance with gen-
erally accepted engineering practice. The registered design
professional shall have a fully qualified representative on the
site during all boring and sampling operations.
1802.6 Reports. The soil classification and design load-bear-
ing capacity shall be shown on the construction document.
Where required by the building official, a written report of the
investigation shall be submitted that includes, but need not be
limited to, the following information:
1. A plot showing the location of test borings and/or exca-
vations.
2. A complete record of the soil samples.
3. A record of the soil profile.
4. Elevation of the water table, if encountered.
5. Recommendations for foundation type and design crite-
ria, including but not limited to: bearing capacity of natu-
ral or compacted soil; provisions to mitigate the effects
of expansive soils; mitigation of the effects of liquefac-
tion, differential settlement and varying soil strength;
and the effects of adjacent loads.
6. Expected total and differential settlement.
#
126R
2008 CITY OF LOS ANGELES BUILDING CODE
SOILS AND FOUNDATIONS
4. Test methods for determining the acceptance of the
CLSM in the field.
5. Number and frequency of field tests required to deter-
mine comphance with Item 4.
SECTION 1804
ALLOWABLE LOAD-BEARING VALUES OF SOILS
1804.1 Design. The presumptive load-bearing values provided
in Table 1804.2 shall be used with the allowable stress design
load combinations specified in Section 1605.3.
1804.2 Presumptive load-bearing values. The maximum
allowable foundation pressure, lateral pressure or lateral slid-
ing-resistance values for supporting soils near the surface shall
not exceed the values specified in Table 1804.2 unless data to
substantiate the use of a higher value are submitted and
approved.
Presumptive load-bearing values shall apply to materials
with similar physical characteristics and dispositions.
Mud, organic silt, organic clays, peat or uncertified fill shall
not be assumed to have a presumptive load-bearing capacity.
1804.3 Lateral sliding resistance. The resistance of structural
walls to lateral sliding shall be calculated by combining the val-
ues derived from the lateral bearing and the lateral sliding resis-
tance shown in Table 1804.2 unless data to substantiate the use
of higher values are submitted for approval. For clay, sandy
clay, silty clay and clayey silt, in no case shall the lateral sliding
resistance exceed one-half the dead load.
1804.3.1 Increases in allowable lateral sliding resistance.
The resistance values derived from the table are permitted to
be increased by the tabular value for each additional foot (305
mm) of depth to a maximum of 15 times the tabular value.
Isolated poles for uses such as flagpoles or signs and poles
used to support buildings that are not adversely affected by a
0.5 inch (12.7 mm) motion at the ground surface due to
short-term lateral loads are permitted to be designed using
lateral-bearing values equal to two times the tabular values.
SECTION 1805
FOOTINGS AND FOUNDATIONS
1805.1 General. Footings and foundations shall be designed and
constructed in accordance with Section 1805. Footings and foun-
dations shall be built on undisturbed soil, compacted fill material
or controlled low-strength material (CLSM). Compacted fill
material shall be placed in accordance with Section 1803.5.
CLSM shall be placed in accordance with Section 1803.6.
The top surface of footings shall be level. The bottom sur-
face of footings is permitted to have a slope not exceeding one
unit vertical in ten units horizontal (ten percent slope). Footings
shall be stepped where it is necessary to change the elevation of
the top surface of the footing or where the surface of the ground
slopes more than one unit vertical in ten units horizontal (ten
percent slope). This stepping requirement shall also apply to
the top surface of grade beams supporting walls. Footings shall
be reinforced with four '/j-inch diameter (12.7 mm) deformed
reinforcing bars. Two bars shall be placed at the top and bottom
of the footings as shown in Figure 1805.1 of this Code.
1805.2 Depth of footings. The minimum depth of footings
below the surface of undisturbed soil, compacted fill material
or CLSM shall be 12 inches (305 mm). Where applicable, the
depth of footings shall also conform to Sections 1805.2.1
through 1805.2.3.
1805.2.1 Frost protection. Except where otherwise pro-
tected from frost, foundation walls, piers and other perma-
nent supports of buildings and structures shall be protected
by one or more of the following methods:
. 1. Extending below the frost line of the locality;
2. Constructing in accordance with ASCE 32; or
3. Erecting on solid rock.
Exception: Free-standing buildings meeting all of
the following conditions shall not be required to be
protected:
L Classified in Occupancy Category I, in ac-
cordance with Section 1604.5;
TABLE 1804.2
ALLOWABLE FOUNDATION AND LATERAL PRESSURE
CLASS OF MATERIALS
ALLOWABLE FOUNDATION
PRESSURE (psf)"
LATERAL BEARING
(psf/f below natural grade)"
LATERAL SLIDING
Coefficient
of friction^
Resistance
(psf)"
1. Crystalline bedrock
12,000
1,200
0.70
2. Sedimentary and foliated rock
4,000
400
0.35
—
3. Sandy gravel and/or gravel (GW and GP)
3,000
200
0.35
—
4. Sand, silty sand, clayey sand, silty gravel and
clayey gravel (SW, SP, SM, SC, GM and GO)
2,000
150
0.25
—
5. Clay, sandy clay, silty clay, clayey silt, silt and
sandy silt (CL, ML, MH and CH)
1,500'=
100
—
130
For SI: 1 pound per square foot = 0.0479 kPa, 1 pound per square foot per foot = 0. 157 kPa/m.
a. Coefficient to be multiplied by the dead load.
b. Lateral sliding resistance value to be multiplied by the contact area, as limited by Section 1804.3.
c. Where the building official determines that in -place soils with an allowable bearing capacity of less than 1 ,500 psf are likely to be present at the site, the allowable
bearing capacity shall be determined by a soils investigation.
d. An increase of one-third is permitted when using the alternate load combinations in Section 1605.3.2 that include wind or earthquale loads.
2008 CITY OF LOS ANGELES BUILDING CODE
129R
SOILS AND FOUNDATIONS
2. Area of 600 square feet (56 m^) or less for
light-frame construction or 400 square feet
(37 m^) or less for other than light-frame
construction; and
3. Have height of 10 feet (3048 mm) or less.
Footings shall not bear on frozen soil unless such frozen
condition is of a permanent character.
1805.2.2 Isolated footings. Footings on granular soil shall be
so located that the line drawn between the lower edges of
adjoining footings shall not have a slope steeper than 30
degrees (0.52 rad) with the horizontal, unless the material
supporting the higher footing is braced or retained or other-
wise laterally supported in an approved manner or a greater
slope has been properly established by engineering analysis.
1805.2.3 Shifting or moving soils. Where it is known that
the shallow subsoils are of a shifting or moving character,
footings shall be carried to a sufficient depth to ensure
stability.
1805.3 Footings on or adjacent to slopes. The placement of
buildings and structures on or adjacent to slopes steeper than
one unit vertical in three units horizontal (33,3-percent slope)
shall conform to Sections 1805.3.1 through 1805.3.5.
1805.3.1 Building clearance from ascending slopes. In
general, buildings below slopes shall be set a sufficient dis-
tance from the slope to provide protection from slope drain-
age, erosion and shallow failures. Except as provided for in
Section 1805.3.5 and Figure 1805.3.1, the following criteria
will be assumed to provide this protection. Where the exist-
ing slope is steeper than one unit vertical in one unit hori-
zontal (100-percent slope), the toe of the slope shall be
assumed to be at the intersection of a horizontal plane drawn
from the top of the foundation and a plane drawn tangent to
the slope at an angle of 45 degrees (0.79 rad) to the horizon-
tal. Where a retaining wall is constructed at the toe of the
slope, the height of the slope shall be measured from the top
of the wall to the top of the slope.
1805.3.2 Footing setback from descending slope surface.
Footings on or adjacent to slope surfaces shall be founded in
firm material with an embedment and set back from the
slope surface sufficient to provide vertical and lateral sup-
port for the footing without detrimental settlement. Except
as provided for in Section 1805.3.5 and Figure 1805.3.1, the
following setback is deemed adequate to meet the criteria.
Where the slope is steeper than 1 unit vertical in 1 unit hori-
zontal (100-percent slope), the required setback shall be
measured from an imaginary plane 45 degrees (0.79 rad) to
the horizontal, projected upward from the toe of the slope.
1805.3.3 Pools. The setback between pools regulated by
this code and slopes shall be equal to one-half the building
footing setback distance required by this section. That por-
tion of the pool wall within a horizontal distance of 7 feet
(2134 mm) from the top of the slope shall be capable of sup-
porting the water in the pool without soil support.
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
RECOMMEND: a > b
MIN. U REBAR (TOP & BOTTOM)
BOTTOM PLATE (TYP.)
FIGURE 1805.1
STEPPED FOUNDATIONS
/^j^\\y^y'^
J^y>A'<KK>ly>y^
H/3 BUT NEED NOT
EXCEED 40 FT.
MAX.
H/2 BUT NEED NOT EXCEED 15 FT. MAX.
For SI: 1 foot = 304.8 mm.
FIGURE 1805.3.1
FOUNDATDON CLEARANCES FROM SLOPES
130R
2008 CiTY OF LOS ANGELES BUBLDING CODE
SOILS AND FOUNDATIONS
1805.3.4 Foundation elevation. On graded sites, the top of
any exterior foundation shall extend above the elevation of
the street gutter at point of discharge or the inlet of an
approved drainage device a minimum of 12 inches (305 mm)
plus 2 percent. Alternate elevations are permitted subject to
the approval of the building official, provided it can be dem-
onstrated that required drainage to the point of discharge and
away from the structure is provided at all locations on the site.
1805.3.5 Alternate setback and clearance. Alternate set-
backs and clearances are permitted, subject to the approval
of the building official. The building official is permitted to
require an investigation and recommendation of a registered
design professional to demonstrate that the intent of this
section has been satisfied. Such an investigation shall
include consideration of material, height of slope, slope gra-
dient, load intensity and erosion characteristics of slope
material.
1805.4 Footings. Footings shall be designed and constructed
in accordance with Sections 1805.4.1 through 1805.4.6.
1805.4.1 Design. Footings shall be so designed that the
allowable bearing capacity of the soil is not exceeded, and
that differential settlement is minimized. The niinimum
width of footings shall be 12 inches (305 mm).
Footings in areas with expansive soils shall be designed
in accordance with the provisions of Section 1805.8.
1805.4.1.1 Design loads. Footings shall be designed for
the most unfavorable effects due to the combinations of
loads specified in Section 1605.2 or 1605.3. The dead
load is permitted to include the weight of foundations,
footings and overlying fill. Reduced live loads, as speci-
fied in Sections 1607.9 and 1607.1 1, are permitted to be
used in the design of footings.
1805.4.1.2 Vibratory loads. Where machinery opera-
tions or other vibrations are transmitted through the
foundation, consideration shall be given in the footing
design to prevent detrimental disturbances of the soil.
1805.4.2 Concrete footings. The design, materials and con-
struction of concrete footings shall comply with Sections
1805.4.2.1 through 1805.4.2.6 and the provisions of Chap-
ter 19.
Exception: Where a specific design is not provided, con-
crete footings supporting walls of light-frame construc-
TABLE
FOOTINGS SUPPORTING WALLS OF
tion are permitted to be designed in accordance with
Table 1805.4.2.
1805.4.2.1 Concrete strength. Concrete in footings
shall have a specified compressive strength (f ^) of not
less than 2,500 pounds per square inch (psi) (17 237 kPa)
at 28 days.
1805.4.2.2 Footing seismic ties. Where a structure is
assigned to Seismic Design Category D, E or F in accor-
dance with Section 1613, individual spread footings
founded on soil defined in Section 1613.5.2 as Site Class
E or F shall be interconnected by ties. Ties shall be capa-
ble of carrying, in tension or compression, a force equal
to the product of the larger footing load times the seismic
coefficient, S^s divided by 10 unless it is demonstrated
that equivalent restraint is provided by reinforced con-
crete bea:ms within slabs on grade or reinforced concrete
slabs on grade.
1805.4.2.3 Plain concrete footings. The edge thickness
of plain concrete footings supporting walls of other than
light-frame construction shall not be less than 8 inches
(203 mm) where placed on soil.
Exception: For plain concrete footings supporting
Group R-3 occupancies, the edge thickness is permitted
to be 6 inches (152 mm), provided that the footing does
not extend beyond a distance greater than the thickness
of the footing on either side of the supported wall.
1805.4.2.4 Placement of concrete. Concrete footings shall
not be placed through water unless a tremie or other
method approved by the building official is used. Where
placed under or in the presence of water, the concrete shall
be deposited by approved means to ensure minimum seg-
regation of the mix and negligible turbulence of the water.
1805.4.2.5 Protection of concrete. Concrete footings
shall be protected from freezing during depositing and for
a period of not less than five days thereafter. Water shall
not be allowed to flow through the deposited concrete.
1805.4.2.6 Forming of concrete. Concrete footings are
permitted to be cast against the earth where, in the opin-
ion of the building official, soil conditions do not require
forming. Where forming is required, it shall be in accor-
dance with Chapter 6 of ACI 318.
1805.4.2
LIGHT-FRAME CONSTRUCTION^- "■ "=• "• ^
NUMBER OF FLOORS
SUPPORTED BY THE FOOTING'
WIDTH OF FOOTING
(inches)
THICKNESS OF FOOTING
(inches)
1
12
6
2
15
6
3
18
gg
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
a. Depth of footings shall be in accordance with Section 1805.2.
b. The ground under the floor is permitted to be excavated to the elevation of the top of the footing.
c. Not adopted.
d. See Section 1908 for additional requirements for footings of structures assigned to Seismic Design Cat^ory C, D, E or F.
e. For thickness of foundation walls, see Section 1805.5.
f. Footings are permitted to support aroof in addition to the stipulated number of floors. Footings supporting roof only shall be as required for supporting one floor.
g. Plain concrete footings for Group R-3 occupancies are permitted to be 6 inches thick.
LA
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2008 CITY OF LOS ANGELES BUILDING CODE
131R
SOILS AND FOUNDATIONS
1805.43 Masonry-unit footings. The design, materials
and construction of masonry-unit footings shall comply
with Sections 1805.4.3.1 and 1805.4.3.2, and the provisions
of Chapter 21.
tnon: Where a specific design is not provided,
masonry-unit footings supporting walls of light-frame
construction are permitted to be designed in accordance
with Table 1805.4.2.
1805.4.3.1 Dimensions. Masonry-unit footings shall be
laid in Type M or S mortar complying with Section
2103.8 and the depth shall not be less than twice the pro-
jection beyond the wall, pier or column. The width shall
not be less than 8 inches (203 mm) wider than the wall
supported thereon.
1805.4.3.2 Offsets. The maximum offset of each course
in brick foundation walls stepped up from the footings
shall be 1.5 inches (38 mm) where laid in single courses,
and 3 inches (76 mm) where laid in double courses.
1805.4.4 Steel grillage footings. Grillage footings of struc-
tural steel shapes shall be separated with approved steel
spacers and be entirely encased in concrete with at least 6
inches (152 mm) on the bottom and at least 4 inches (102
mm) at all other points. The spaces between the shapes shall
be completely filled with concrete or cement grout.
1805.4.5 Timber footings. Timber footings are permitted
for buildings of Type V construction and as otherwise
approved by the building official. Such footings shall be
treated in accordance with AWPA Ul (Commodity Specifi-
cation A, Use Category 4B). Treated timbers are not
required where placed entirely below permanent water level
or where used as capping for wood piles that project above
the water level over submerged or marsh lands. The com-
pressive stresses perpendicular to the grain in untreated tim-
ber footings supported upon treated piles shall not exceed
70 percent of the allowable stresses for the species and grade
of timber as specified in the AF&PA NDS.
1805.4.6 Wood foundations. Wood foundation systems
shall be designed and installed in accordance with AF&PA
Technical Report No. 7 and as otherwise approved by the
Superintendent of Building. Lumber and plywood shall be
treated in accordance with AWPA Ul (Commodity Specifi-
cation A, Use Category 4B and Section 5.2) and shall be
identified in accordance with Section 2303.1.8.1 of this
Code.
Exception: Accessory buildings not used for human
occupancy and less than 120 square feet (11. 1 m^) in area
may be supported on treated wood mud sills.
1805.5 Foundation walls. Concrete and masonry foundation
walls shall be designed in accordance with Chapter 19 or 21,
respectively. Foundation walls that are laterally supported at
the top and bottom and within the parameters of Tables
1805.5(1) through 1805.5(5) are permitted to be designed and
constructed in accordance with Sections 1805.5.1 through
1805.5.5.
M^
TABLE 1805.5(1)
PLAIN MASONRY FOUNDATION WALLS^ "•■=
MAXIMUM
WALL HEIGHT
(feet)
MAXIMUM UNBALANCED
BACKFILL HEIGHT*
(feet)
MINIMUM NOMINAL WALL THICKNESS (inches)
Soil classes and lateral soil load°(psf per foot below natural grade)
GW, GP, SW and SP soils
30
GM, GC, SM, SM-SC and ML soils
45
SC, ML-CL and Inorganic CL soils
60
7
4 (or less)
5
6
7
8
8
10
12
8
10
12
10 (solid'^)
8
10
10 (solid^)
10 (solid'^)
8
4 (or less)
5
6
7
8
8
8
10
12
10 (solidO
8
10
12
12 (solid^)
12 (solid^)
8
12
12 (solid"^)
Note d
Noted
9
4 (or less)
5
6
7
8
9
8
8
12
12 (solid'^)
12 (solid^)
Noted
8
10
12
12(solid^)
Noted
Noted
8
12
12 (solid=)
Noted
Note d
Noted
For SL 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot per foot = 0.157kPa/m.
a. For design lateral soil loads, see Section 1610. Soil classes are in accordance with the Unified Soil Classification System and design lateral soil loads are for moist
soil conditions without hydrostatic pressure.
b. Provisions for this table are based on construction requirements specified in Section 1805.5.2.2.
c. Solid grouted hollow units or solid masonry units.
d. A design in compliance with Chapter 21 or reinforcement in accordance with Table 1805.5(2) is required.
e. For height of unbalanced backfill, see Section 1805.5. 1 .2.
132R
2008 CITY OF LOS ANGELES BUILDING CODE
SOILS AND FOUNDATIONS
Darripproofing shall consist of a bituminous material, 3
pounds per square yard (16 N/m^) of acrylic modified
cement, 0.125 inch (3.2 mm) coat of surface-bonding mor-
tar complying with ASTM C 887, any of the materials per-
mitted for waterproofing by Section 1807.3.2 or other
approved methods or materials.
1807.2.2.1 Surface preparation of walls. Prior to appli-
cation of dampproofing materials on concrete walls,
holes and recesses resulting from the removal of form
ties shall be sealed with a bituminous material or other
approved methods or materials. Unit masonry walls shall
be parged on the exterior surface below ground leyel with
not less than 0.375 inch (9.5 mm) of portland cement
mortar. The parging shall be coved at the footing.
Exception: Parging of unit masonry walls is not
required where a material is approved for direct appli-
cation to the masonry.
1807.3 Waterproofing required. Where the ground-water
investigation required by Section 1802.2.3 indicates that a
hydrostatic pressure condition exists, and the design does not
include a ground-water control system as described in Section
1807.1.3, walls and floors shall be waterproofed in accordance
with this section.
^3.1 Floors. Floors required to be waterproofed shall
be of concrete and designed and constructed to withstand
the hydrostatic pressures to which the floors will be sub-
jected.
Waterproofing shall be accomplished by placing a mem-
brane of rubberized asphalt, butyl rubber, fully
adhered/fully bonded HDPE or polyolefin composite mem-
brane or not less than 6-mil [0.006 inch (0.152 mm)] polyvi-
nyl chloride with joints lapped not less than 6 inches (152
mm) or other approved materials under the slab. Joints in the
membrane shall be lapped and sealed in accordance with the
manufacturer's installation instructions.
1807.3.2 Walls. Walls required to be waterproofed shall be
of concrete or masonry and shall be designed and con-
structed to withstand the hydrostatic pressures and other lat-
eral loads to which the walls will be subjected.
Waterproofing shall be applied from the bottom of the
wall to not less than 12 inches (305 mm) above the maxi-
mum elevation of the ground-water table. The remainder of
the wall shall be dampproofed in accordance with Section
1807.2.2. Waterproofing shall consist of two-ply
hot-mopped felts, not less than 6-mil (0.006 inch; 0.152
mm) polyvinyl chloride, 40-mil (0.040 inch; 1.02 mm)
polymer-modified asphalt, 6-mil (0.006 inch; 0.152 mm)
polyethylene or other approved methods or materials capa-
ble of bridging nonstructural cracks. Joints in the membrane
shall be lapped and sealed in accordance with the manufac-
turer's installation instructions.
1807.3.2.1 Surface preparation of walls. Prior to the
application of waterproofing materials on concrete or
masonry walls, the walls shall be prepared in accordance
with Section 1807.2.2.1.
1807.3.3 Joints and penetrations. Joints in walls and
floors, joints between the wall and floor and penetrations of
the wall and floor shall be made water-tight utilizing
approved methods and materials.
1807.4 Subsoil drainage system. Where a hydrostatic pres-
sure condition does not exist, dampproofing shall be provided
and a base shall be installed under the floor and a drain installed
around the foundation perimeter. A subsoil drainage system
designed and constructed in accordance with Section 1807. 1.3
shall be deemed adequate for lowering the ground- water table.
1807.4.1 Floor base course. Floors of basements, except as
provided for in Section 1 807 .1.1, shall be placed over a floor
base course not less than 4 inches ( 1 02 mm) in thickness that
consists of gravel or crushed stone containing not more than
10 percent of material that passes through a No. 4 (4.75 mm)
sieve.
Exception: Where a site is located in well-drained gravel
or sand/gravel mixture soils, a floor base course is not
required.
1807.4.2 Foundation drain. A drain shall be placed around
the perimeter of a foundation that consists of gravel or
crushed stone containing not more than 10-percent material
that passes through a No. 4 (4.75 mm) sieve. The drain shall
extend a minimum of 12 inches (305 mm) beyond the out-
side edge of the footing. The thickness shall be such that the
bottom of the drain is not higher than the bottom of the base
under the floor, and that the top of the drain is not less than 6
inches (152 mm) above the top of the footing. The top of the
drain shall be covered with an approved filter membrane
material. Where a drain tile or perforated pipe is used, the
invert of the pipe or tile shall not be higher than the floor ele-
vation. The top of joints or the top of perforations shall be
protected with an approved filter membrane material. The
pipe or tile shall be placed on not less than 2 inches (5 1 mm)
of gravel or crushed stone complying with Section
1807.4.1, and shall be covered with not less than 6 inches
(152 mm) of the same material.
1807.4.3 Drainage discharge. The floor base and founda- la
tion perimeter drain shall discharge by gravity or mechani- la
cal means into an approved drainage system that complies la
with the Plumbing Code. la
SECTION 1808
PIER AND PILE FOUNDATIONS
1808.1 Definitions. The following words and terms shall, for
the purposes of this section, have the meanings shown herein.
FLEXURAL LENGTH. Flexural length is the length of the
pile from the first point of zero lateral deflection to the under-
side of the pile cap or grade beam.
MICROPILES. Micropiles are 12-inch-diameter (305 mm)
or less bored, grouted-in-place piles incorporating steel pipe
(casing) and/or steel reinforcement.
PIER FOUNDATIONS. Pier foundations consist of isolated
masonry or cast-in-place concrete structural elements extend-
2008 CITY OF LOS ANGELES BUILDING CODE
141R
SOILS AND FOUNDATSONS
ing into firm materials. Piers are relatively short in comparison
to their width, with lengths less than or equal to 12 times the
least horizontal dimension of the pier. Piers derive their
load-carrying capacity through skin friction, through end bear-
ing, or a combination of both.
piers. Belled piers are cast-in-place concrete piers
constructed with a base that is larger than the diameter of the
remainder of the pier. The belled base is designed to
increase the load-bearing area of the pier in end bearing.
PILE FOUNDATIONS. Pile foundations consist of concrete,
wood or steel structural elements either driven into the ground
or cast in place. Piles are relatively slender in comparison to
their length, with lengths exceeding 12 times the least horizon-
tal dimension. Piles derive their load-carrying capacity through
skin friction, end bearing or a combination of both.
Angered uncased piles. Angered uncased piles are con-
structed by depositing concrete into an uncased angered
hole, either during or after the withdrawal of the auger.
Caissom piles. Caisson piles are cast-in-place concrete piles
extending into bedrock. The upper portion of a caisson pile
consists of a cased pile that extends to the bedrock. The
lower portion of the caisson pile consists of an uncased
socket drilled into the bedrock.
Concrete-filled steel pipe and tube piles. Concrete-filled
steel pipe and tube piles are constructed by driving a steel
pipe or tube section into the soil and filling the pipe or tube
section with concrete. The steel pipe or tube section is left in
place during and after the deposition of the concrete.
lies. Driven uncased piles are constructed
by driving a steel shell into the soil to shore an unexcavated
hole that is later filled with concrete. The steel casing is
lifted out of the hole during the deposition of the concrete.
Enlarged base piles. Enlarged base piles are cast-in-place
concrete piles constructed with a base that is larger than the
diameter of the remainder of the pile. The enlarged base is
designed to increase the load-bearing area of the pile in end
bearing.
Steel-cased piles. Steel-cased piles are constructed by driv-
ing a steel shell into the soil to shore an unexcavated hole.
The steel casing is left permanently in place and filled with
concrete.
Timber piles. Timber piles are round, tapered timbers with
the small (tip) end embedded into the soil.
1808.2 Piers and piles-general requirements.
.2.1 Design. Piles are permitted to be designed in
accordance with provisions for piers in Section 1808 and
Sections 1812.3 through 1812.10 where either of the fol-
lowing conditions exists, subject to the approval of the
building official:
1 . Group R-3 and U occupancies not exceeding two sto-
ries of light-frame construction, or
2. Where the surrounding foundation materials furnish
adequate lateral support for the pile.
1808.2.2 General. Pier and pile foundations shall be
designed and installed on the basis of a foundation investi-
gation as defined in Section 1802, unless sufficient data
upon which to base the design and installation is available.
The investigation and report provisions of Section 1802
shall be expanded to include, but not be limited to, the
following:
1 . Recommended pier or pile types and installed capaci-
ties.
2. Recommended center-to-center spacing of piers or
piles.
3. Driving criteria.
4. Installation procedures.
5. Field inspection and reporting procedures (to include
procedures for verification of the installed bearing ca-
pacity where required).
6. Pier or pile load test requirements.
7. Durability of pier or pile materials.
8. Designation of bearing stratum or strata.
9. Reductions for group action, where necessary.
1808.2.3 Special types of piles. The use of types of piles not
specifically mentioned herein is permitted, subject to the
approval of the building official, upon the sulDmission of
acceptable test data, calculations and other information
relating to the structural properties and load capacity of such
piles. The allowable stresses shall not in any case exceed the
limitations specified herein.
1808.2.4 Pile caps. Pile caps shall be of reinforced concrete,
and shall include all elements to which piles are connected,
including grade beams and mats. The soil immediately
below the pile cap shall not be considered as carrying any
vertical load. The tops of piles shall be embedded not less
than 3 inches (76 mm) into pile caps and the caps shall
extend at least 4 inches (102 mm) beyond the edges of piles.
The tops of piles shall be cut back to sound material before
capping.
1808.2.5 Stability. Piers or piles shall be braced to provide
lateral stability in all directions. Three or more piles con-
nected by a rigid cap shall be considered braced, provided
that the piles are located in radial directions from the cen-
troid of the group not less than 60 degrees (1 rad) apart. A
two-pile group in a rigid cap shall be considered to be
braced along the axis connecting the two piles. Methods
used to brace piers or piles shall be subject to the approval of
the building official.
Piles supporting walls shall be driven alternately in lines
spaced at least 1 foot (305 mm) apart and located symmetri-
cally under the center of gravity of the wall load carried,
unless effective measures are taken to provide for eccentric-
ity and lateral forces, or the wall piles are adequately braced
to provide for lateral stability. A single row of piles without
lateral bracing is permitted for one- and two-family dwell-
ings and lightweight construction not exceeding two stories
or 35 feet (10 668 mm) in height, provided the centers of the
piles are located within the width of the foundation wall.
1808.2.6 Structural integrity. Piers or piles shall be
installed in such a manner and sequence as to prevent distor-
142
2008 CITY OF LOS ANGELES BUILDING CODE
SOILS AND FOUNDATIONS
tion or damage that may adversely affect the structural
integrity of piles being installed or already in place.
1808.2.7 Splices. Splices shall be constructed so as to pro-
vide and maintain true alignment and position of the compo-
nent parts of the pier or pile during installation and
subsequent thereto and shall be of adequate strength to
transmit the vertical and lateral loads and moments occur-
ring at the location of the splice during driving and under
service loading. Splices shall develop not less than 50 per-
cent of the least capacity of the pier or pile in bending. In
addition, splices occurring in the upper 10 feet (3048 mm)
of the embedded portion of the pier or pile shall be capable
of resisting at allowable working stresses the moment and
shear that would result from an assumed eccentricity of the
pier or pile load of 3 inches (76 mm), or the pier or pile shall
be braced in accordance with Section 1 808.2.5 to other piers
or piles that do not have splices in the upper 10 feet (3048
mm) of embedment.
1808.2.8 Allowable pier or pile loads.
1808.2.8.1 Determination of allowable loads. The
allowable axial and lateral loads on piers or piles shall be
determined by an approved formula, load tests or method
of analysis.
1808.2.8.2 Driving criteria. The allowable compressive
load on any pile where determined by the application of
an approved driving formula shall not exceed 40 tons
(356 kN). For allowable loads above 40 tons (356 kN),
the wave equation method of analysis shall be used to
estimate pile driveability of both driving stresses and net
displacement per blow at the ultimate load. Allowable
loads shall be verified by load tests in accordance with
Section 1808.2.8.3. The formula or wave equation load
shall be determined for gravity-drop or power-actuated
hammers and the hammer energy used shall be the maxi-
mum consistent with the size, strength and weight of the
driven piles. The use of a follower is permitted only with
the approval of the building official. The introduction of
fresh hammer cushion or pile cushion material just prior
to final penetration is not permitted.
1808.2.8.3 Load tests. Where design compressive loads
per pier or pile are greater than those permitted by Sec-
tion 1808.2.10 or where the design load for any pier or
pile foundation is in doubt, control test piers or piles shall
be tested in accordance with ASTM D 1 143 or ASTM D
4945. At least one pier or pile shall be test loaded in each
area of uniform subsoil conditions. Where required by
the building official, additional piers or piles shall be
load tested where necessary to establish the safe design
capacity. The resulting allowable loads shall not be more
than one-half of the ultimate axial load capacity of the
test pier or pile as assessed by one of the published meth-
ods listed in Section 1808.2.8.3.1 with consideration for
the test type, duration and subsoil. The ultimate axial
load capacity shall be determined by a registered design
professional with consideration given to tolerable total
and differential settlements at design load in accordance
with Section 1808.2.12. In subsequent installation of the
balance of foundation piles, all piles shall be deemed to
have a supporting capacity equal to the control pile
where such piles are of the same type, size and relative
length as the test pile; are installed using the same or
comparable methods and equipment as the test pile; are
installed in similar subsoil conditions as the test pile;
and, for driven piles, where the rate of penetration (e.g.,
net displacement per blow) of such piles is equal to or
less than that of the test pile driven with the same hammer
through a comparable driving distance.
1808.2.8.3.1 Load test evaluation. It shall be permit-
ted to evaluate pile load tests with any of the following
methods:
1. Davisson Offset Limit.
2. Brinch-Hansen 90% Criterion.
3. Butler-Hoy Criterion.
4. Other methods approved by the building offi-
cial.
1808.2.8.4 Allowable frictional resistance. The la
LA
assumed frictional resistance developed by any pier or la
uncased cast-in-place pile shall not exceed one- sixth of la
the bearing value of the soil material at minimum depth la
as set forth in Table 1804.2 up to a maximum of 500 psf [-^
(24 kPa), unless a greater value is allowed by the Super- la
intendent of Building after a soil investigation as speci- [^
fied in Section 1802 is submitted, or a greater value is la
substantiated by a load test in accordance with Section [^
1808.2.8.3. Frictional resistance and bearing resistance la
shall not be assumed to act simultaneously. l^
1808.2.8.5 Uplift capacity. Where required by the
design, the uplift capacity of a single pier or pile shall be
determined by an approved method of analysis based on
a minimum factor of safety of three or by load tests con-
ducted in accordance with ASTM D 3689. The maxi-
mum allowable uplift load shall not exceed the ultimate
load capacity as determined in Section 1808.2.8.3
divided by a factor of safety of two. For pile groups sub-
jected to uplift, the allowable working uplift load for the
group shall be the lesser of:
1 . The proposed individual pile uplift working load
times the number of piles in the group.
2. Two-thirds of the effective weight of the pile group
and the soil contained within a block defined by
the perimeter of the group and the length of the
pile.
1808.2.8.6 Load-bearing capacity. Piers, individual
piles and groups of piles shall develop ultimate load
capacities of at least twice the design working loads in
the designated load-bearing layers. Analysis shall show
that no soil layer underlying the designated load-bearing
layers causes the load-bearing capacity safety factor to
be less than two.
1808.2.8.7 Bent piers or piles. The load-bearing capac-
ity of piers or piles discovered to have a sharp or sweep-
ing bend shall be determined by an approved method of
analysis or by load testing a representative pier or pile.
2008 CITY OF LOS ANGELES BUILDING CODE
143R
SOILSAND FOUNDATIOiSIS
18®8o2o8.8 Overloads on piers or piles. The maximum
compressive load on any pier or pile due to mislocation
shall not exceed 110 percent of the allowable design
load.
LA
LA
LA
LA
LA
LA
LA
LA
LA
18®8.2.9.1 General. Only undisturbed soil, compacted
fill material or CLSM shall be deemed to afford suffi-
cient lateral support to the pier or pile to prevent buckling
and to permit the design of the pier or pile in accordance
with accepted engineering practice and the applicable
provisions of this Code.
1808.2.9.2 Unbraced piles. Piles standing unbraced in
air, water or in fluid soils shall be designed as columns in
accordance with the provisions of this code. Such piles
driven into firm ground can be considered fixed and lat-
erally supported at 5 feet (1524 mm) below the ground
surface and in soft material at 10 feet (3048 mm) below
the ground surface unless otherwise prescribed by the
building official after a foundation investigation by an
approved agency.
1808.2.9.3 Allowable lateral load. Where required by
the design, the lateral load capacity of a pier, a single pile
or a pile group shall be determined by an approved
method of analysis or by lateral load tests to at least twice
the proposed design working load. The resulting allow-
able load shall not be more than one-half of that test load
that produces a gross lateral movement of 1 inch (25 mm)
at the ground surface.
1808.2.10 Use of higher allowable pier or pile stresses.
Allowable stresses greater than those specified for piers or
for each pile type in Sections 1809 and 1810 are permitted
where supporting data justifying such higher stresses is filed
with the building official. Such substantiating data shall
include:
1. A soils investigation in accordance with Section
1802.
2. Pier or pile load tests in accordance with Section
1808.2.8.3, regardless of the load supported by the
pier or pile.
The design and installation of the pier or pile foundation
shall be under the direct supervision of a registered design
professional knowledgeable in the field of soil mechanics
and pier or pile foundations who shall certify to the building
official that the piers or piles as installed satisfy the design
criteria.
1808.2.11 Piles m sebsiding areas. Where piles are
installed through subsiding fills or other subsiding strata
and derive support from underlying firmer materials, con-
sideration shall be given to the downward frictional forces
that may be imposed on the piles by the subsiding upper
strata.
Where the influence of subsiding fills is considered as
imposing loads on the pile, the allowable stresses specified
in this chapter are permitted to be increased where satisfac-
tory substantiating data are submitted.
1808.2.12 Settlement analysis. The settlement of piers, indi-
vidual piles or groups of piles shall be estimated based on
approved methods of analysis. The predicted settlement shall
cause neither harmful distortion of, nor instability in, the
structure, nor cause any stresses to exceed allowable values.
1808.2.13 Preexcavation, The use of jetting, augering or
other methods of preexcavation shall be subject to the
approval of the building official. Where permitted,
preexcavation shall be carried out in the same manner as
used for piers or piles subject to load tests and in such a man-
ner that will not impair the carrying capacity of the piers or
piles already in place or damage adjacent structures. Pile
tips shall be driven below the preexcavated depth until the
required resistance or penetration is obtained.
1808.2.14 Installation sequence. Piles shall be installed in
such sequence as to avoid compacting the surrounding soil
to the extent that other piles cannot be installed properly,
and to prevent ground movements that are capable of dam-
aging adjacent structures.
1808.2.15 Use of vibratory drivers. Vibratory drivers shall
only be used to install piles where the pile load capacity is
verified by load tests in accordance with Section 1808.2.8.3.
The installation of production piles shall be controlled
according to power consumption, rate of penetration or
other approved means that ensure pile capacities equal or
exceed those of the test piles.
1808.2.16 Pile driveability. Pile cross sections shall be of
sufficient size and strength to withstand driving stresses
without damage to the pile, and to provide sufficient stiff-
ness to transmit the required driving forces.
,2,17 Protection of pile materials. Where boring
records or site conditions indicate possible deleterious action
on pier or pile materials because of soil constituents, chang-
ing water levels or other factors, the pier or pile materials
shall be adequately protected by materials, methods or pro-
cesses approved by the building official. Protective materials
shall be applied to the piles so as not to be rendered ineffective
by driving. The effectiveness of such protective measures for
the particular purpose shall have been thoroughly established
by satisfactory service records or other evidence.
1808.2.18 Use of existing piers or pies. Piers or piles left
in place where a structure has been demolished shall not be
used for the support of new construction unless satisfactory
evidence is submitted to the building official, which indi-
cates that the piers or piles are sound and meet the require-
ments of this code. Such piers or piles shall be load tested or
redriven to verify their capacities. The design load applied
to such piers or piles shall be the lowest allowable load as
determined by tests or redriving data.
1808.2.19 Heaved piles. Piles that have heaved during the
driving of adjacent piles shall be redriven as necessary to
develop the required capacity and penetration, or the capac-
ity of the pile shall be verified by load tests in accordance
with Section 1808.2.8.3.
L2,20 Identification. Pier or pile materials shall be
identified for conformity to the specified grade with this
identity maintained continuously from the point of manu-
2008 CITY OF LOS ANGELES BUILDING CODE
CONCRETE
Seismic Design Category D or E, the height of the
wall shall not exceed 8 feet (2438 mm), the thick-
ness shall not be less than 7 ^/j inches (190 mm),
and the wall shall retain no more than 4 feet
(1219 mm) of unbalanced fill. Walls shall have
reinforcement in accordance with 22.6.6.5.
(b) Isolated footings of plain concrete supporting
pedestals or columns are permitted, provided the
projection of the footing beyond the face of the
supported member does not exceed the footing
thickness.
Exception: In detached one- and two-family
dwellings three stories or less in height, the pro-
jection of the footing beyond the face of the sup-
ported member is permitted to exceed the
footing thickness.
(c) Plain concrete footings supporting walls are per-
mitted, provided the footings have at least two
continuous longitudinal reinforcing bars. Bars
shall not be smaller than No. 4 and shall have a to-
tal area of not less than 0.002 times the gross
cross-sectional area of the footing. For footings
that exceed 8 inches (203 mm) in thickness, a mini-
mum of one bar shall be provided at the top and
bottom of the footing. Continuity of reinforcement
shall be provided at comers and intersections.
Exceptions:
1. In detached one- and two-family dwellings
three stories or less in height and con-
structed with stud-bearing walls, plain
concrete footings without longitudinal re-
inforcement supporting walls are permit-
ted.
2. For foundation systems consisting of a
plain concrete footing and a plain con-
crete stemwall, a minimum of one bar
shall be provided at the top of the
stemwall and at the bottom of the footing.
3. Where a slab on ground is cast
monolithically with the footing, one No. 5
bar is permitted to be located at either the
top of the slab or bottom of the footing.
1908.1.16 ACI 318, Section D.3.3. Modify ACI 318, Sec-
tions D.3.3.2 through D.3.3. 5, to read as follows:
D.3.3. 2 — In structures assigned to Seismic Design Cate-
gory C, D, E or F, post-installed anchors for use under
D.2.3 shall have passed the Simulated Seismic Tests of
ACI 355.2.
D.3.3. 3 — In structures assigned to Seismic Design Cate-
gory C, D,EorF, the design strength of anchors shall be
taken as 0.75(pN„ and 0.75(py„, where cp is given in D.4.4
or D.4.5, and N„ and V„ are determined in accordance
withD.4.1.
D.3.3.4 — In structures assigned to Seismic Design Cate-
gory C, D, E or F, anchors shall be designed to be gov-
erned by tensile or shear strength of a ductile steel
element, unless D.3.3.5 is satisfied.
D.3.3.5 — Instead of D.3.3.4, the attachment that the
anchor is connecting to the structure shall be designed so
that the attachment will undergo ductile yielding at a load
level corresponding to anchor forces no greater than the
design strength of anchors specified in D.3.3. 3, or the
minimum design strength of the anchors shall be at least
2.5 times the factored forces transmitted by the attach-
ment.
1908.1.17 Equation 14-7 of Sections 14.8.3 and 14.8.4 of
ACI 318. Sections 14.8.3 and 14.8.4 of ACI 318 are modi-
fied as follows:
Section 14.8.3 of ACI 318: /,, shall be calculated by
Equation (14-7), and M„ shall be obtained by iteration of
deflections.
'--E^^^fld
yd-c) +
(Formula 14-7)
and the value EJE^ shall not be taken less than six.
Section 14.8.4 of ACI 318: Maximum out-of -plane
deflection, A^, due to service loads, including PA effects,
shall not exceed /^/150.
If M^, maximum moment at mid-height of wall due to
service lateral and eccentric loads, including PA effects,
exceed (Vt^M^^A^ shall be calculated by Equation
(14-8):
A =2^
. 3 '
M--M,
a 3 c
M.
M,
(Formula 14-8)
If M„ does not exceed (^l^)M^„ A^ shall be calculated by
Equation (14-9):
M^
M.
where:
A =,^^-^'
(Formula 14-9)
48£,/,,
4SEJ.
Icr shall be calculated by Equation (14-7), and M^ shall be
obtained by iteration of deflections.
SECTION 1909
STRUCTURAL PLAIN CONCRETE
1909.1 Scope. The design and construction of structural plain
concrete, both cast-in-place and precast, shall comply with the
minimum requirements of Section 1909 and ACI 318, Chapter
22, as modified in Section 1908.
1909.1.1 Special structures. For special structures, such as
arches, underground utility structures, gravity walls and
2008 CITY OF LOS ANGELES BUILDING CODE
189R
CONCRETE
shielding walls, the provisions of this section shall govern
where applicable.
K2 Limitaltioinis. The use of structural plain concrete shall
be limited to:
1 . Members that are continuously supported by soil, such
as walls and footings, or by other structural members ca-
pable of providing continuous vertical support.
2. Members for which arch action provides compression
under all conditions of loading.
3. Walls and pedestals.
The use of structural plain concrete columns and structural
plain concrete footings on piles is not permitted. See Section
1908.1.15 for additional limitations on the use of structural
plain concrete.
i. Contraction or isolation joints shall be provided
to divide structural plain concrete members into flexurally dis-
continuous elements in accordance with ACI 318, Section
22.3.
EgE. Structural plain concrete walls, footings and
pedestals shall be designed for adequate strength in accordance
with ACI 318, Sections 22.4 through 22.8..
tion: For Group R-3 occupancies and buildings of
other occupancies less than two stories in height of
light-frame construction, the required edge thickness of
ACI 318 is permitted to be reduced to 6 inches (152 mm),
provided that the footing does not extend more than 4 inches
(102 mm) on either side of the supported wall
,5 Precast members. The design, fabrication, transporta-
tion and erection of precast, structural plain concrete elements
shall be in accordance with ACI 318, Section 22.9.
5. In addition to the requirements of this section,
structural plain concrete walls shall comply with the applicable
requirements of ACI 318, Chapter 22.
1909.6.1 Basement walls. The thickness of exterior base-
ment walls and foundation walls shall be not less than 7V-,
189alR
2008 CBTY OF LOS ANGELES BUILDING CODE
This page left intentionally blank.
•
2008 CITY OF LOS ANGELES BUILDING CODE . ISSbR
CONCRETE
inches (191 mm). Structural plain concrete exterior base-
ment walls shall be exempt from the requirements for spe-
cial exposure conditions of Section 1904.2.2.
19(0)9.6.2 Other walls. Except as provided for in Section
1909.6.1, the thickness of bearing walls shall be not less
than V24 the unsupported height or length, whichever is
shorter, but not less than 5 V2 inches (140 mm).
1909.6.3 Openings in walls. Not less than two No. 5 bars
shall be provided around window and door openings. Such
bars shall extend at least 24 inches (610 mm) beyond the
comers of openings.
SECTDON 1910
SLAB PROVISIONS
I.l General. The thickness of concrete floor slabs sup-
ported directly on the ground shall not be less than 3V2 inches
(89 mm). A 6-mil (0.006 inch; 0.15 mm) polyethylene vapor
retarder with joints lapped not less than 6 inches (152 mm)
shall be placed between the base course or subgrade and the
concrete floor slab, or other approved equivalent methods or
materials shall be used to retard vapor transmission through the
floor slab.
ion: A vapor retarder is not required:
1 . For detached structures accessory to occupancies in
Group R-3, such as garages, utility buildings or other
unheated facilities.
2. For unheated storage rooms having an area of less
than 70 square feet (6.5 m^) and carports attached to
occupancies in Group R-3.
3. For buildings of other occupancies where migration
of moisture through the slab from below will not be
detrimental to the intended occupancy of the building.
4. For driveways, walks, patios and other flatwork
which will not be enclosed at a later date.
5. Where approved based on local site conditions.
SECTION 1911
ANCHORAGE TO CONCRETE— ALLOWABLE
STRESS DESIGN
1911.1 Scope. The provisions of this section shall govern the
allowable stress design of headed bolts and headed stud
anchors cast in normal-weight concrete for purposes of trans-
mitting structural loads from one connected element to the
other. These provisions do not apply to anchors installed in
hardened concrete or where load combinations include earth-
quake loads or effects. The bearing area of headed anchors
shall be not less than one and one-half times the shank area.
Where strength design is used, or where load combinations
include earthquake loads or effects, the design strength of
anchors shall be determined in accordance with Section 1912.
Bolts shall conform to ASTM A 307 or an approved equivalent.
1911.2 Allowable service load. The allowable service load for
headed anchors in shear or tension shall be as indicated in Table
191 1.2. Where anchors are subject to combined shear and ten-
sion, the following relationship shall be satisfied:
(PJP,)^'^ + (VJV,)^'^< 1 (Equation 19-1)
where:
P^ = Applied tension service load, pounds (N).
Pj = Allowable tension service load from Table 1911.2,
pounds (N).
V, = Applied shear service load, pounds (N).
V, = Allowable shear service load from Table 1911.2,
pounds (N).
1911.3 Required edge distance and spacing. The allowable
service loads in tension and shear specified in Table 1911.2 are
for the edge distance and spacing specified. The edge distance
and spacing are permitted to be reduced to 50 percent of the val-
TABLE 1911.2
ALLOWABLE SERVICE LOAD ON EMBEDDED BOLTS (pounds)
BOLT
DIAMETER
(inches)
MINIMUM
EMBEDMENT
(inches)
EDGE
DISTANCE
(inches)
SPACING
(inches)
MINIMUM CONCRETE STRENGTH (psi)
f'<, = 2,500
f ■„ = 3,000
r^ = 4,000
Tension
Shear
Tension
Shear
Tension
Shear
V4
2%
IV,
3
200
500
200
500
200
500
%
3
2V,
4V,
500
1,100
500
1,100
500
1,100
%
4
4
3
5
6
5
950
1,450
1,250
1,600
950
1,500
1,250
1,650
950
1,550
1,250
1,750
\
4%
4V,
33/4
6V4
1%
1\
1,500
2,125
2,750
2,950
1,500
2,200
2,750
3,000
1,500
2,400
2,750
3,050
%
5
5
4%
1%
9
9
2,250
2,825
3,250
4,275
2,250
2,950
3,560
4,300
2,250
3,200
3,560
4,400
%
6
5V4
10'/2
2,550
3,700
2,550
4,050
2,550
4,050
1
7
6
12
3,050
4,125
3,250
4,500
3,650
5,300
l'/«
8
6V4
13'/,
. 3,400
4,750
3,400
4,750
3,400
4,750
IV4
9
1%.
15
4,000
5,800
4,000
5,800
4,000
5,800
For SI: 1 inch - 25.4 mm, 1 pound per square inch = 0.00689 MPa, 1 pound = 4.45 N.
190
2008 CITY OF LOS ANGELES BUILDING CODE
MASONRY
2111.13.2 Masonry fireplaces. Listed combustion air
ducts for masonry fireplaces shall be installed according to
the terms of their listing and manufacturer's instructions.
3.3 Exterior air intake. The exterior air intake shall
be capable of providing all combustion air from the exterior
of the dwelling. The exterior air intake shall not be located
within the garage, attic, basement or crawl space of the dwell-
ing nor shall the air intake be located at an elevation higher
than the firebox. The exterior air intake shall be covered with
a corrosion-resistant screen of 74-inch (6.4 mm) mesh.
2111.13.4 Clearance. Unlisted combustion air ducts shall
be installed with a minimum 1-inch (25 mm) clearance to
combustibles for all parts of the duct within 5 feet (1524
mm) of the duct outlet.
3.5 Passageway. The combustion air passageway
shall be a minimum of 6 square inches (3870 mm^) and not
more than 55 square inches (0.035 m^), except that combus-
tion air systems for listed fireplaces or for fireplaces tested
for emissions shall be constructed according to the fireplace
manufacturer's instructions.
2111.13.6 Outlet. The exterior air outlet is permitted to be
located in the back or sides of the firebox chamber or within 24
inches (610 mm) of the firebox opening on or near the floor.
The outlet shall be closable and designed to prevent burning
material from dropping into concealed combustible spaces.
SECTION 2112
MASONRY HEATERS
2112.1 Definition. A masonry heater is a heating appliance con-
structed of concrete or soUd masonry, hereinafter referred to as
"masonry," which is designed to absorb and store heat from a
solid fuel fire built in the firebox by routing the exhaust gases
through internal heat exchange channels in which the flow path
downstream of the firebox may include flow in a horizontal or
downward direction before entering the chimney and which
delivers heat by radiation from the masonry surface of the heater.
2112.2 Installation. Masonry heaters shall be installed in accor-
dance with this section and comply with one of the following:
1. Masonry heaters shall comply with the requirements of
ASTME1602;or
2. Masonry heaters shall be listed and labeled in accor-
dance with UL 1482 and installed in accordance with the
manufacturer's installation instructions.
2112.3 Footings and foundation. The firebox floor of a
masonry heater shall be a minimum thickness of 4 inches (102
mm) of noncombustible material and be supported on a
noncombustible footing and foundation in accordance with Sec-
tion 2113.2.
2112.4 Seismic reinforcing. In Seismic Design Category D, E
and F, masonry heaters shall be anchored to the masonry foun-
dation in accordance with Section 2113. 3. Seismic reinforcing
shall not be required within the body of a masonry heater with a
height that is equal to or less than 3.5 times its body width and
where the masonry chimney serving the heater is not supported
by the body of the heater. Where the masonry chimney shares a
common wall with the facing of the masonry heater, the chim-
ney portion of the structure shall be reinforced in accordance
with Section 2113.
2112.5 Masonry heater clearance. Combustible materials
shall not be placed within 36 inches (765 mm) of the outside sur-
face of a masonry heater in accordance with NFPA 211, Section
8-7 (clearances for solid fuel-burning appliances), and the
required space between the heater and combustible material
shall be fully vented to permit the free flow of air around all
heater surfaces.
Exceptions:
1 . When the masonry heater wall thickness is at least 8
inches (203 mm) thick of solid masonry and the wall
thickness of the heat exchange channels is at least 5
inches ( 1 27 mm) thick of solid masonry, combustible
materials shall not be placed within 4 inches (102
mm) of the outside surface of a masonry heater. A
clearance of at least 8 inches (203 mm) shall be pro-
vided between the gas-tight capping slab of the heater
and a combustible ceiling.
2. Masonry heaters listed and labeled in accordance
with UL 1482 and installed in accordance with the
manufacturer's instructions.
SECTION 2113
MASONRY CHIMNEYS
2113.1 Definition. A masonry chimney is a chimney con-
structed of concrete or masonry, hereinafter referred to as
"masonry." Masonry chimneys shall be constructed, anchored,
supported and reinforced as required in this chapter.
2113.2 Footings and foundations. Footings for masonry
chimneys shall be constructed of concrete or solid masonry at
least 1 2 inches (305 mm) thick and shall extend at least 6 inches
(152 mm) beyond the face of the foundation or support wajl on
all sides. Footings shall be founded on natural undisturbed
earth or engineered fill below frost depth. In areas not subjected
to freezing, footings shall be at least 12 inches (305 mm) below
finished grade.
2113.3 Seismic reinforcing. Masonry or concrete chimneys la
shall be constructed, anchored, supported and reinforced as la
required in this Chapter. In Seismic Design Category D, [-^
masonry and concrete chimneys shall be reinforced and la
anchored as detailed in Sections 21 13.3.1, 21 13.3.2 and 21 13.4. [^
In Seismic Design Category A, B or C, reinforcement and seis- la
mic anchorage is not required. In Seismic Design Category E or ^^
F, masonry and concrete chimneys shall be reinforced in accor- la
dance with the requirements of Sections 2101 through 2108. \^
Notwithstanding any other provisions of this Code, an exist- la
ing masonry chimney which is altered or repaired more than la
ten percent of its replacement cost within a 12-month period la
shall have its entire chimney structure comply with the current [-a
requirements of this Code or other standards approved by the la
Superintendent of Building. "-^
2113.3.1 Vertical reinforcing. For chimneys up to 40
inches (1016 mm) wide, four No. 4 continuous vertical bars
anchored in the foundation shall be placed in the concrete
between wythes of solid masonry or within the cells of hol-
low unit masonry and grouted in accordance with Section
2008 CITY OF LOS ANGELES BUILDING CODE
243R
WiASONRY
2103.12. Grout shall be prevented from bonding with the
flue liner so that the flue liner is free to move with thermal
expansion. For chimneys greater than 40 inches (1016 mm)
wide, two additional No. 4 vertical bars shall be provided for
each additional 40 inches (1016 mm) in width or fraction
thereof.
2113.3.2 Horizontal reinforcing. Vertical reinforcement
shall be placed enclosed within '/4-inch (6.4 nam) ties, or
other reinforcing of equivalent net cross-sectional area,
spaced not to exceed 1 8 inches (457 mm) o.c. in concrete, or
placed in the bed joints of unit masonry, at a minimum of
every 1 8 inches (457 mm) of vertical height. Two such ties
shall be provided at each bend in the vertical bars.
2113<,4 Seismic anchorage. Masonry and concrete chimneys
and foundations in Seismic Design Category D shall be
anchored at each floor, ceiling or roof line more than 6 feet
(1 829 mm) above grade, except where constructed completely
within the exterior walls. Anchorage shall conform to the fol-
lowing requirements.
2113.4.1 AncSiorage. Two ^/,6-inch by 1-inch (4.8 mm by
25 mm) straps shall be embedded a minimum of 12 inches
(305 mm) into the chimney. Straps shall be hooked around
the outer bars and extend 6 inches (152 mm) beyond the
bend. Each strap shall be fastened to a minimum of four
floor joists with two Vj-inch (12.7 mm) bolts.
2113.5 Corbeling. Masonry chimneys shall not be corbeled
more than half of the chimney's wall thickness from a wall or
foundation, nor shall a chimney be corbeled from a wall or
foundation that is less than 12 inches (305 mm) in thickness
unless it projects equally on each side of the wall, except that on
the second story of a two-story dwelling, corbeling of chim-
neys on the exterior of the enclosing walls is permitted to equal
the wall thickness. The projection of a single course shall not
exceed one-half the unit height or one-third of the unit bed
depth, whichever is less.
2113.6 Changes in dimension. The chimney wall or chimney
flue lining shall not change in size or shape within 6 inches
(152 mm) above or below where the chimney passes through
floor components, ceiling components or roof components.
2113.7 Offsets. Where a masonry chimney is constructed with
a fireclay flue liner surrounded by one wythe of masonry, the
maximum offset shall be such that the centerline of the flue
above the offset does not extend beyond the center of the chim-
ney wall below the offset. Where the chimney offset is sup-
ported by masonry below the offset in an approved manner, the
maximum offset limitations shall not apply. Each individual
corbeled masonry course of the offset shall not exceed the pro-
jection limitations specified in Secfion 2113.5.
2113.8 Additional load. Chimneys shall not support loads
other than their own weight unless they are designed and con-
structed to support the additional load. Masonry chimneys are
permitted to be constructed as part of the masonry walls or con-
crete walls of the building.
2113.9 Termination. Chimneys shall extend at least 2 feet
(610 mm) higher than any portion of the building within 10 feet
(3048 mm), but shall not be less than 3 feet (914 mm) above the
highest point where the chimney passes through the roof.
2113.9.1 Spark arrestors. All chimneys attached to any
appliance or fireplace that burns solid fuel shall be
equipped with an approved spark arrestor. The spark
arrester shall meet all of the following requirements:
1 . The net free area of the spark arrester shall not be less
than four times the net free area of the outlet of the
chimney.
2. The spark arrester screen shall have heat and corro-
sion resistance equivalent to 12-gage wire, 19- gage
galvanized wire or 24-gage stainless steel.
3. Openings shall not permit the passage of spheres hav-
ing a diameter larger than V2 inch (12.7 mm) and
shall not block the passage of spheres having a diame-
ter of less than % inch (9.5 mm).
4. The spark arrestor shall be accessible for cleaning and
the screen or chimney cap shall be removable to allow
for cleaning of the chimney flue.
2113.10 Wall thickness. Masonry chimney walls shall be con-
structed of concrete, solid masonry units or hollow masonry
units grouted solid with not less than 4 inches (102 mm) nomi-
nal thickness.
2113.10.1 Masonry veneer chimneys. Where masonry is
used as veneer for a framed chimney, through flashing and
weep holes shall be provided as required by Chapter 14.
2113.11 Flue lining (material). Masonry chimneys shall be
lined. The lining material shall be appropriate for the type of
appliance connected, according to the terms of the appliance
listing and the manufacturer's instructions.
2113.11.1 Residential-type appliances (general). Flue
lining systems shall comply with one of the following:
1 . Clay flue lining complying with the requirements of
ASTM C 315, or equivalent.
2. Listed chimney lining systems complying with UL
1777.
3. Factory-built chimneys or chimney units listed for in-
stallation within masonry chinrmeys.
4. Other approved materials that will resist corrosion,
erosion, softening or cracking from flue gases and
condensate at temperatures up to L800°F (982°C).
2113.11.1.1 Flue linings for specific appliances. Flue
linings other than those covered in Section 2113.11.1
intended for use with specific appliances shall comply
with Sections 2113. 11. 1.2 through 2113. 11. 1.4 and Sec-
tions 2113.11.2 and 2113. 11.3.
2113.11.1.2 Gas appliances. Flue lining systems for gas
appliances shall be in accordance with the California
Mechanical Code.
1.1.3 Pellet fuel-burning appliances. Flue lining
and vent systems for use in masonry chimneys with pel-
let fuel-burning appliances shall be limited to flue lining
systems complying with Section 2113.11.1 and pellet
vents listed for installation within masonry chimneys
(see Section 2113.11.1.5 for marking).
2113.11.1.4 Oil-fired appliances approved for use
with L-vent. Flue lining and vent systems for use in
244
2008 CITY OF LOS ANGELES BUILDING CODE
CHAPTER 22
STEEL
SECTION 2201
GENERAL
22OI0I Scope. The provisions of this chapter govern the qual-
ity, design, fabrication and erection of steel used structurally in
buildings or structures.
SECTION 2202
DEFINITIONS
2202.1 Definitions. The following words and terms shall, for
the purposes of this chapter and as used elsewhere in this code,
have the meaning shown herein.
STEEL CONSTRUCTION, COLD-FORMED. That type-
of construction made up entirely or in part of steel structural
members cold formed to shape from sheet or strip steel such as
roof deck, floor and wall panels, studs, floor joists, roof joists
and other structural elements.
STEEL JOIST. Any steel structural member of a building or
structure made of hot-rolled or cold-formed solid or open- web
sections, or riveted or welded bars, strip or sheet steel members,
or slotted and expanded, or otherwise deformed rolled sections.
STEEL MEMBER, STRUCTURAL. Any steel strucmral
member of a building or structure consisting of a rolled steel struc-
tural shape other than cold-formed steel, or steel joist members.
SECTION 2203
IDENTIFICATION AND PROTECTION OF STEEL
FOR STRUCTURAL PURPOSES
2203.1 Identification. Steel furnished for structural load-carry-
ing purposes shall be properly identified for conformity to the
ordered grade in accordance with the specified ASTM standard or
other specification and the provisions of this chapter. Steel that is
not readily identifiable as to grade from marking and test records
shall be tested to determine conformity to such standards.
2203.2 Protection. Painting of structural steel shall comply
with the requirements contained in AISC 360. Individual struc-
tural members and assembled panels of cold-formed steel con-
struction, except where fabricated of approved corrosion-
resistant steel or of steel having a corrosion-resistant or other
approved coating, shall be protected against corrosion with an
approved coat of paint, enamel or other approved protection.
SECTION 2204
CONNECTIONS
LA 2204.1 Welding. The details of design, workmanship and tech-
i_A nique for welding, inspection of welding and qualification of
LA welding operators shall conform to the requirements of the
^J specifications listed in Sections 2205, 2206, 2207, 2209 and
f^ 2210. Special inspection of welding shall be provided where
'la required by Section 1704 of this Code.
LA
LA All welding, except when performed at the shop of an
L^ approved fabricator, shall be done by operators certified by the
Department for the type of operation involved in accordance la
with the provisions of Section 1704.3.1 of this Code. l^
LA
Complete details of location, type, size and amount of all welds la
shall be clearly shown on the plans. Where symbols are used on [-^
the plans, they shall be the "Standard Welding Symbols," AWS la
A 2.4, of the American Welding Society (AWS). When it is neces- [^
sary to use a special erection sequence of welding to minimize la
locked-up stresses or distortion, the Department may require the [^
erection sequence of welding to be shown on the plans. la
Welding procedures are qualified if they are in accordance [-^
with the AWS. Other welding procedures require special quali- la
fication approval by the Department. Each application for a [-^
special qualification shall be accompanied by a fee of $50.00. la
2204.2 Bolting. The design, installation and inspection of bolts
shall be in accordance with the requirements of the specifica-
fions listed in Secfions 2205, 2206, 2209 and 2210. Special
inspection of the installation of high- strength bolts shall be pro-
vided where required by Section 1704.
2204.2.1 Anchor rods. Anchor rods shall be set accurately to
the pattern and dimensions called for on the plans. The pro-
trusion of the threaded ends through the connected material
shall be sufficient to fully engage the threads of the nuts, but
shall not be greater than the length of the threads on the bolts .
SECTION 2205
STRUCTURAL STEEL
2205.1 General. The design, fabrication and erection of struc-
tural steel for buildings and structures shall be in accordance
with AISC 360. Where required, the seismic design of steel
structures shall be in accordance with the additional provisions
of Section 2205.2.
2205.2 Seismic requirements for steel structures. The
design of structural steel structures to resist seismic forces shall
be in accordance with the provisions of Section 2205.2.1 or
2205.2.2 for the appropriate seismic design category.
2205.2.1 Seismic Design Category A, B or C. Structural
steel structures assigned to Seismic Design Category A, B
or C shall be of any construction permitted in Section 2205.
An R factor as set forth in Section 12.2. 1 of ASCE 7 for the
appropriate steel system is permitted where the structure is
designed and detailed in accordance with the provisions of
AISC 341, Part I. Systems not detailed in accordance with
the above shall use the R factor in Section 1 2.2. 1 of ASCE 7
designated for "structural steel systems not specifically
detailed for seismic resistance."
2205.2.2 Seismic Design Category D, E or F. Structural
steel structures assigned to Seismic Design Category D, E or
F shall be designed and detailed in accordance with AISC
341, Part I.
2205.3 Seismic requirements for composite construction. The
design, construction and quality of composite steel and concrete
components that resist seismic forces shall conform to the require-
2008 CITY OF LOS ANGELES BUILDING CODE
279R
STEEL
ments of the AISC 360 and ACI 318. An R factor as set forth in
Section 12.2.1 of ASCE 7 for the appropriate composite steel and
concrete system is permitted where the structure is designed and
detailed in accordance with the provisions of AISC 34 1 , Part U. In
Seismic Design Category B or above, the design of such systems
shaU conform to the requirements of AISC 341, Part H.
220S3.1 Seismic Desigm Categories D, E and E Compos-
ite structures are permitted in Seismic Design Categories D,
E and F, subject to the Umitations in Section 12.2.1 of ASCE
7, where substantiating evidence is provided to demonstrate
that the proposed system will perform as intended by AISC
341, Part II. The substantiating evidence shall be subject to
building official approval. Where composite elements or
connections are required to sustain inelastic deformations,
the substantiating evidence shall be based on cyclic testing.
SECTION 2206
STEEL JOISTS
2206.1 General. The design, manufacture and use of open web
steel joists and joist girders shall be in accordance with one of
the following Steel Joist Institute (SJI) specifications:
1. SJIK-1.1
2. SJILH/DLH-1.1
3. SJIJG-1.1
Where required, the seismic design of buildings shall be in
accordance with the additional provisions of Section 2205.2 or
2210.5.
22(0i6,2 Design. The registered design professional shall indi-
cate on the construction documents the steel joist and/or steel
joist girder designations from the specifications listed in Sec-
tion 2206.1 and shall indicate the requirements for joist and
joist girder design, layout, end supports, anchorage, non-SJI
standard bridging, bridging termination connections and bear-
ing connection design to resist uplift and lateral loads. These
documents shall indicate special requirements as follows:
1 . Special loads including:
1.1. Concentrated loads;
1.2. Nonuniform loads;
1.3. Net uplift loads;
1.4. Axial loads;
1.5. End moments; and
1.6. Connection forces.
2. Special considerations including:
2.1. Profiles for nonstandard joist and joist girder con-
figurations (standard joist and joist girder configu-
rations are as indicated in the SJI catalog);
2.2. Oversized or other nonstiindard web openings; and
2.3. Extended ends.
3. Deflection criteria for live and total loads for non-SJI
standard joists.
2206.3 Calculations. The steel joist and joist girder manufac-
turer shall design the steel joists and/or steel joist girders in
accordance with the current SJI specifications and load tables to
support the load requirements of Section 2206.2. The registered
design professional may require submission of the steel joist and
joist girder calculations as prepared by a registered design pro-
fessional responsible for the product design. If requested by the
registered design professional, the steel joist manufacturer shall
submit design calculations with a cover letter bearing the seal
and signature of the joist manufacturer's registered design pro-
fessional. In addition to standard calculations under this seal and
signature, submittal of the following shall be included:
1 . Non-SJI standard bridging details (e.g. for cantilevered
conditions, net uplift, etc.).
2. Connection details for:
2. 1 . Non-SJI standard connections (e.g. flush-framed
or framed connections);
2.2. Field splices; and
2.3. Joist headers.
2206.4 Steel joist drawings. Steel joist placement plans shall
be provided to show the steel joist products as specified on the
construction documents and are to be utilized for field installa-
tion in accordance with specific project requirements as stated
in Section 2206.2. Steel placement plans shall include, at a
minimum, the following:
1 . Listing of all applicable loads as stated in Section 2206.2
and used in the design of the steel joists and joist girders
as specified in the construction documents.
2. Profiles for nonstandard joist and joist girder configura-
tions (standard joist and joist girder configurations are as
indicated in the SJI catalog).
3. Connection requirements for:
3.1. Joist supports;
3.2. Joist girder supports;
3.3. Field splices; and
3.4. Bridging attachments.
4. Deflection criteria for live and total loads for non-SJI
standard joists.
5. Size, location and connections for all bridging.
6. Joist headers.
Steel joist placement plans do not require the seal and signa-
ture of the joist manufacturer's registered design professional.
2206.5 Certification. At completion of fabrication, the steel
joist manufacturer shall submit a certificate of compliance in
accordance with Section 1704.2.2 stating that work was per-
formed in accordance with approved construction documents
and with SJI standard specifications.
SECTION 2207
STEEL CABLE STRUCTURES
2207.1 General. The design, fabrication and erection includ-
ing related connections, and protective coatings of steel cables
for buildings shall be in accordance with ASCE 19.
2207.2 Seismic requirements for steel cable. The design
strength of steel cables shall be determined by the provisions of
ASCE 19 except as modified by these provisions.
1 . A load factor of 1 . 1 shall be applied to the prestress force
included in Tj and T^ as defined in Section 3.12.
2. In Section 3.2.1, Item (c) shall be replaced with "1.5 Tj"
and Item (d) shall be replaced with "1.5 T^."
280R
2008 CITY OF LOS ANGELES BUILDING CODE
CHAPTER 23
WOOD
LA
•
SECTION 2301
GENERAL
LA 2301.1 Scope. The provisions of this Chapter shall govern the
LA materials, design, construction and quality of wood members
J-A and their fasteners.
LA
[^ Hillside buildings (buildings constructed upon slopes
A steeper than one unit vertical in three units horizontal
j^ (33.3-percent slope) shall comply with Section 1613.9 of this
LA Code (seismic design provisions for hillside buildings) and this
LA Chapter.
2301.1.1 Application. [DSA-SS & OSHPD 1, 2 and 4] The
scope of application of Chapter 23 is as follows:
1. Applications listed in Section 109.2, regulated by the
Division of the State Architect — Structural Safety
(DSA-SS). These applications include public elemen-
tary and secondary schools, community colleges and
state-owned or state-leased essential services
buildings.
2. Applications listed in Section 110, regulated by the
Office of Statewide Health Planning and Develop-
ment (OSHPD). These applications include hospi-
tals, skilled nursing facilities, intermediate care
facilities and correction treatment centers.
Exception: For applications listed in Section
110.3 (Licensed Clinics), the provisions of this
chapter without OSHPD amendments identified
per Section 2301.1.2 shall apply.
2301.1.2 Identification of amendments. [DSA-SS &
OSHPD 1, 2 and 4] Division of the State Architect — Struc-
tural Safety and Office of Statewide Health Planning and
Development amendments appear in this chapter preceded
with the appropriate acronym, as follows:
1. Division of the State Architect — Structural Safety:
[DSA'SS] For applications listed in Section 109.2.
2. Office of Statewide Health Planning and Develop-
ment:
[OSHPD 1] For applications listed in Section 110.1.
[OSHPD 2] For applications listed in Section 110.2.
[OSHPD 4] For applications listed in Section 110.4.
2301.1.3 Reference to other chapters. [DSA-SS & OSHPD
1 and 4] Where reference within this chapter is made to sec-
tions in Chapters 16, 17, 18, 19, 21, 22 and 34, the provi-
sions in Chapters 16A, 17 A, ISA, 19 A, 21 A and 34A,
respectively, shall apply instead.
Exception: For DSA-SS, the requirements of Chapter 34
shall apply instead of Chapter 34A.
2301.2 General design requirements. The design of struc-
tural elements or systems, constructed partially or wholly of
wood or wood-based products, shall be in accordance with one
of the following methods:
1. Allowable stress design in accordance with Sections
2304, 2305 and 2306.
2. Load and resistance factor design in accordance with
Sections 2304, 2305 and 2307.
3. Conventional light-frame construction in accordance
with Sections 2304 and 2308.
Exception: Buildings designed in accordance with
the provisions of the AF&PA WFCM shall be deemed
to meet the requirements of the provisions of Section
2308.
2301.3 Nominal sizes. For the purposes of this chapter, where
dimensions of lumber are specified, they shall be deemed to be
nominal dimensions unless specifically designated as actual
dimensions (see Section 2304.2).
SECTION 2302
DEFINITIONS
2302.1 Definitions. The following words and terms shall, for
the purposes of this chapter, have the meanings shown herein.
ACCREDITATION BODY. An approved, third-party organi-
zation that is independent of the grading and inspection agen-
cies, and the lumber mills, and that initially accredits and
subsequently monitors, on a continuing basis, the competency
and performance of a grading or inspection agency related to
carrying out specific tasks.
BRACED WALL LINE. A series of braced wall panels in a
single story that meets the requirements of Section 2308.3 or
2308.12.4.
BRACED WALL PANEL. A section of wall braced in accor-
dance with Section 2308.9.3 or 2308.12.4.
COLLECTOR. A horizontal diaphragm element parallel and
in line with the applied force that collects and transfers dia-
phragm shear forces to the vertical elements of the lat-
eral-force-resisting system and/or distributes forces within the
diaphragm.
CONVENTIONAL LIGHT-FRAME WOOD CON-
STRUCTION. A type of construction whose primary struc-
tural elements are formed by a system of repetitive
wood-framing members. See Section 2308 for conventional
light-frame wood construction provisions.
2008 CITY OF LOS ANGELES BUILDING CODE
293R
WOOD
CRIPPLE WALL. A framed stud wall extending from the top
of the foundation to the underside of floor framing for the low-
est occupied floor level.
DIAPHRAGM, UNBLOCKED. A diaphragm that has edge
naihng at supporting members only. Blocking between sup-
porting structural members at panel edges is not included. Dia-
phragm panels are field nailed to supporting members.
DRAG STRUT. See "Collector."
FIBERBOARD. A fibrous, homogeneous panel made from
lignocellulosic fibers (usually wood or cane) and having a den-
sity of less than 3 1 pounds per cubic foot (pcf) (497 kg/m^) but
more than 10 pcf (160 kg/m^).
GLUED BUILT-UP MEMBER. A structural element, the
section of which is composed of built-up lumber, wood struc-
tural panels or wood structural panels in combination with lum-
ber, all parts bonded together with structural adhesives.
GRADE (LUMBER). The classification of lumber in regard
to strength and utility in accordance with American Softwood
Lumber Standard DOC PS 20 and the grading rules of an
approved lumber rules-writing agency.
HARDBOARD. A fibrous-felted, homogeneous panel made
from lignocellulosic fibers consolidated under heat and pres-
sure in a hot press to a density not less than 3 1 pcf (497 kg/m^).
NAILING, BOUNDARY. A special nailing pattern required
by design at the boundaries of diaphragms.
NAILING, EDGE. A special nailing pattern required by
design at the edges of each panel within the assembly of a dia-
phragm or shear wall.
NAILING, FIELD. Nailing required between the sheathing
panels and framing members at locations other than boundary
naiUng and edge nailing.
NATURALLY DURABLE WOOD. The heartwood of the
following species with the exception that an occasional piece
with corner sapwood is permitted if 90 percent or more of the
width of each side on which it occurs is heartwood.
Decay resistant. Redwood, cedar, black locust and black
walnut.
Termite resistant. Redwood arid Eastern red cedar.
NOMINAL SIZE (LUMBER). The commercial size desig-
nation of width and depth, in standard sawn lumber and
glued-laminated lumber grades; somewhat larger than the stan-
dard net size of dressed lumber, in accordance with DOC PS 20
for sawn lumber and with the AF&PA NDS for glued-lami-
nated lumber.
PARTICLEBOARD. A generic terai for a panel primarily
composed of cellulosic materials (usually wood), generally in
the form of discrete pieces or particles, as distinguished from
fibers. The cellulosic material is combined with synthetic resin
or other suitable bonding system by a process in which the
interparticle bond is created by the bonding system under heat
and pressure.
PREFABRICATED WOOD I-JOIST. Structural member
manufactured using sawn or structural composite lumber
flanges and wood structural panel webs bonded together with
exterior exposure adhesives, which forms an "I" cross-sec-
tional shape.
PRESERVATIVE-TREATED WOOD. Wood (including
plywood) pressure treated with preservatives in accordance
with Section 2303.1.8.
SHEAR WALL. A wall designed to resist lateral forces paral-
lel to the plane of a wall.
Shear wall, perforated. A wood structural panel sheathed
wall with openings, that has not been specifically designed
and detailed for force transfer around openings.
Shear wall segment, perforated. A section of shear wall
with full-height sheathing that meets the height-to-width
ratio limits of Section 2305.3.4.
STRUCTURAL COMPOSITE LUMBER. Structural mem-
ber manufactured using wood elements bonded together with
exterior adhesives. Examples of structural composite lumber
are:
Laminated veneer lumber (LVL). A composite of wood
veneer sheet elements with wood fibers primarily oriented
along the length of the member.
Parallel strand lumber (PSL). A composite of wood
strand elements with wood fibers primarily oriented along
the length of the member.
STRUCTURAL GLUED-LAMINATED TIMBER. An
engineered, stress-rated product of a timber laminating plant,
comprised of assemblies of specially selected and prepared
wood laminations in which the grain of all laminations is
approximately parallel longitudinally and the laminations are
bonded with adhesives.
SUBDIAPHRAGM. A portion of a larger wood diaphragm
designed to anchor and transfer local forces to primary dia-
phragm struts and the main diaphragm.
TIE-DOWN (HOLD-DOWN). A device used to resist uplift
of the chords of shear walls.
TREATED WOOD. Wood impregnated under pressure with
compounds that reduce its susceptibility to flame spread or to
deterioration caused by fungi, insects or mmne borers.
WOOD SHEAR PANEL. A wood floor, roof or wall compo-
nent sheathed to act as a shear wall or diaphragm.
WOOD STRUCTURAL PANEL. A panel manufactured
from veneers, wood strands or wafers or a combination of
veneer and wood strands or wafers bonded together with water-
proof synthetic resins or other suitable bonding systems.
Examples of wood structural panels are:
Composite panels. A wood structural panel that is com-
prised of wood veneer and reconstituted wood-based mate-
rial and bonded together with waterproof adhesive;
Oriented strand board (OSB). A mat-formed wood struc-
tural panel comprised of thin rectangular wood strands
arranged in cross-aligned layers with surface layers nor-
mally arranged in the long panel direction and bonded with
waterproof adhesive; or
Plywood. A wood structural panel comprised of plies of
wood veneer arranged in cross-aligned layers. The plies are
294
2008 CITY OF LOS ANGELES BUILDDNG CODE
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LA
LA
LA
tive-treated wood unless separated from such floors or
roofs by an impervious moisture barrier.
2304.11.5 Supporting member for permanent appurte-
nances. Naturally durable or preservative-treated wood
shall be utilized for those portions of wood members that
form the structural supports of buildings, balconies, porches
or similar permanent building appurtenances where such
members are exposed to the weather without adequate pro-
tection from a roof, eave, overhang or other covering to pre-
vent moisture or water accumulation on the surface or at
joints between members.
Exception: When a building is located in a geographical
region where experience has demonstrated that climatic
conditions preclude the need to use durable niaterials
where the structure is exposed to the weather.
2304.11.6 Termite protection. In geographical areas
where hazard of termite damage is known to be very heavy,
wood floor framing shall be of naturally durable species
(termite resistant) or preservative treated in accordance with
AWPA Ul for the species, product preservative and end use
or provided with approved methods of termite protection.
2304.11.7 Wood used in retaining walls. No retaining wall
shall be constructed of wood.
2304.11.8 Attic ventilation. For attic ventilation, see Sec-
tion 1203.2.
2304.11.9 Under-floor ventilation (crawl space). For
under-floor ventilation (crawl space), see Section 1203.3.
2304.11.10 Earth fills. [SPCB] Separate the earth fills such
as under porches or paving from all woodwork by concrete,
masonry, good quality cement plaster or other material
approved by local building codes. Chemical treatment of
earth fills is considered adequate if the foundation adjoin-
ing the fill meets standards of the current building codes.
2304.12 Long-term loading. Wood members supporting con-
crete, masonry or similar materials shall be checked for the
effects of long-term loading using the provisions of the
AF&PA NDS. The total deflection, including the effects of
long-term loading, shall be limited in accordance with Section
1604.3.1 for these supported materials.
Exception: Horizontal wood members supporting masonry
or concrete nonstructural floor or roof surfacing not more
than 4 inches (102 mm) thick need not be checked for
long-term loading.
SECTION 2305
GENERAL DESIGN REQUIREMENTS FOR
LATERAL-FORCE-RESISTING SYSTEMS
2305.1 General. Structures using wood shear walls and dia-
phragms to resist wind, seismic and other lateral loads shall be
designed and constructed in accordance with the provisions of
this_ section. Alternatively, compliance with the AF&PA
SDPWS shall be permitted subject to the limitations therein
and the limitations of this code.
2305.1.1 Shear resistance based on principles of
mechanics. Shear resistance of diaphragms and shear walls
are permitted to be calculated by principles of mechanics
using values of fastener strength and sheathing shear
resistance.
2305.1.2 Framing. Boundary elements shall be provided to
transmit tension and compression forces. Perimeter mem-
bers at openings shall be provided and shall be detailed to
distribute the shearing stresses. Diaphragm and shear wall
sheathing shall not be used to splice boundary elements.
Diaphragm chords and collectors shall be placed in, or tan-
gent to, the plane of the diaphragm framing unless it can be
demonstrated that the moments, shears and deformations,
considering eccentricities resulting from other configura-
tions can be tolerated without exceeding the adjusted
resistance and drift limits.
2305.1.2.1 Framing members. Framing members shall
be at least 2 inch (51 mm) nominal width. In general,
adjoining panel edges shall bear and be attached to the
framing members and butt along their centerlines. Nails
shall be placed not less than ^/g inch (9.5 mm) from the
panel edge, not more than 12 inches (305 mm) apart
along intermediate supports, and 6 inches (152 mm)
along panel edge bearings, and shall be firmly driven into
the framing members.
2305.1.3 Openings in shear panels. Openings in shear
panels that materially affect their strength shall be fully
detailed on the plans, and shall have their edges adequately
reinforced to transfer all shearing stresses.
2305.1.4 Shear panel connections. Positive connections
and anchorages capable of resisting the design forces shall
be provided between the shear panel and the attached com-
ponents. In Seismic Design Category D, E or F, the capacity
of toenail connections shall not be used when calculating
lateral load resistance to transfer lateral earthquake forces in
excess of 150 pounds per foot (21 89 N/m) from diaphragms
to shear walls, drag struts (collectors) or other elements, or
from shear walls to other elements.
2305.1.5 Wood members resisting horizontal seismic
forces contributed by masonry and concrete walls. Wood
shear walls, diaphragms, horizontal trusses and other mem-
bers shall not be used to resist horizontal seismic forces con-
tributed by masonry or concrete walls in structures over one
story in height.
Exceptions:
1. Wood floor and roof members are permitted to be
used in horizontal trusses and diaphragms to resist
horizontal seismic forces contributed by masonry
or concrete walls, provided such forces do not re-
sult in torsional force distribution through the truss
or diaphragm. •
2. Wood structural panel sheathed shear walls are per-
mitted to be used to provide resistance to seismic
forces contributed by masonry or concrete walls in
two-story structures of masonry or concrete walls,
provided the following requirements are met:
2007 CALIFORNIA BUILDING CODE
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WOOD
2.1. Story-to-story wall heights shall not ex-
ceed 12 feet (3658 mm).
2.2. Diaphragms shall not be designed to trans-
mit lateral forces by rotation and shall not
cantilever past the outermost supporting
shear wall.
2.3. Combined deflections of diaphragms and
shear walls shall not permit story drift of
supported masonry or concrete walls to ex-
ceed the limit of Section 12.12.1 in ASCE 7.
2.4. Wood structural panel sheathing in dia-
phragms shall have unsupported edges
blocked. Wood structural panel sheathing
for both stories of shear walls shall have
unsupported edges blocked and, for the
lower story, shall have a minimum thick-
ness of 'V32 inch (1 1 .9 mm).
2.5. There shall be no out-of-plane horizontal
offsets between the first and second stories
of wood structural panel shear walls.
2305.1.6 Wood members resisting seismic forces from
Monstrectural concrete or masonry. Wood members shall
be permitted to resist horizontal seismic forces from
nonstructural concrete, masonry veneer or concrete floors.
2305.1.7 Additional requirements. [DSA-SS &. OSHPD 1,
2 and 4] The following limitations shall apply:
1. Straight- sheathed horizontal lumber diaphragms are
not permitted.
2. Gypsum-based sheathing shear walls and portland
cement plaster shear walls are not permitted. ^
3. Shear wall foundation anchor bolt washers (refer to
Section 4.3.6.4.3 of the SDPWS) shall conform with
the requirements of Section 2305.3.11.
4. The engineering analysis shall include a statement in-
dicating whether the lateral-force-resisting system
has been designed in accordance with Section 2305,
or in accordance with the AF&PA SDPWS and the
limitations of this code.
2305.2 Design of wood diaphragms.
2305.2.1 General. Wood diaphragms are permitted to be
used to resist horizontal forces provided the deflection in the
plane of the diaphragm, as determined by calculations, tests
or analogies drawn therefrom, does not exceed the permissi-
ble deflection of attached distributing or resisting elements.
Connections shall extend into the diaphragm a sufficient
distance to develop the force transferred into the diaphragm.
2305.2.2 Deflection. Permissible deflection shall be that
deflection up to which the diaphragm and any attached dis-
tributing or resisting element will maintain its structural
integrity under design load conditions, such that the resist-
ing element will continue to support design loads without
danger to occupants of the structure. Calculations for dia-
phragm deflection shall account for the usual bending and
shear components as well as any other factors, such as nail
deformation, which will contribute to deflection.
The deflection (A) of a blocked wood structural panel dia-
phragm uniformly nailed throughout is permitted to be cal-
culated by using the following equation. If not uniformly
nailed, the constant 0.188 (For SI: V1627) in the third term
must be modified accordingly.
^^^vLL^^^^ 5(A^
SEAb 4Gt " lb
(Equation 23-1)
For SI: A =
0.052vL'
. vL Le^
'^AGt'^ieiJ
^(A,X)
EAb 4Gt 1627 2b
where:
A = Area of chord cross section, in square inches (mm^) .
b = Diaphragm width, in feet (mm).
E = Elastic modulus of chords, in pounds per square inch
(N/mm2).
'e„ = Nail or staple deformation, in inches (mm) [see Table
2305.2.2(1)].
Gt = Panel rigidity through the thickness, in pounds per
inch (N/mm) of panel width or depth [see Table
2305.2.2(2)].
L = Diaphragm length, in feet (mm).
V = Maximum shear due to design loads in the direction
under consideration, in pounds per linear foot (plf)
(N/mm).
A = The calculated deflection, in inches (mm).
SfA^j = Sum of individual chord-splice slip values on
both sides of the diaphragm, each multiplied by
its distance to the nearest support.
TABLE 2305.2.2(1)
e„ VALUES (inches) FOR USE IN CALCULATING DIAPHRAGM
DEFLECTION DUE TO FASTENER SLIP (Structural 5)^"
LOAD PER
FASTENER'^
(pounds)
FASTENER DESIGNATIONS"
6d
8d
lOd
14-Ga staple X 2
inches long
60
0.01
0.00
0.00
0.011
80
0.02
0.01
O.OI
0.018
100
0.03
0.01
0.01
0.028
120
0.04
0.02
0.01
0.04
140
0.06
0.03
0.02
0.053
160
0.10
0.04
0.02
0.068
180
0.05
0.03
200
0.07
0.47
220
0.09
0.06
—
240
—
—
0.07
—
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound = 4.44-8 N.
a. Increase e,, values 20 percent for plywood grades other than Structural I.
b. Nail values apply to common wire nails or staples identified.
c. Load per fastener = maximum shear per foot divided by the number of fas-
teners per foot at interior panel edges.
d. Decrease e„ values 50 percent for seasoned lumber (moisture content < 19
percent).
310
2008 CITY OF LOS ANGELES BUILDING CODE
WOOD
smaller. Figure 2305.2.5(2) illustrates the dimensions of /
and w for a cantilevered diaphragm.
Structures with rigid wood diaphragms having a torsional
irregularity in accordance with Table 12.3-1, Item 1, of
ASCE 7 shall meet the following requirements: the l/w ratio
shall not exceed 1 for one-story structures or 0.67 for struc-
tures over one story in height, where / is the dimension par-
allel to the load direction for which the irregularity exists.
Exception: Where calculations demonstrate that the dia-
phragm deflections can be tolerated, the width is permit-
ted to be increased and the l/w ratio is permitted to be
increased to 1 .5 where sheathed in compliance with Sec-
tion 2305.2.4 or 1 where sheathed in compliance with
Section 2306.3.4 or 2306.3.5.
2305.3 Design of wood shear walls.
2305.3.1 General. Wood shear walls are permitted to resist
horizontal forces in vertical distributing or resisting ele-
ments, provided the deflection in the plane of the shear wall,
as determined by calculations, tests or analogies drawn
therefrom, does not exceed the more restrictive of the per-
missible deflection of attached distributing or resisting ele-
ments or the drift limits of Section 12.12.1 of ASCE7. Shear
wall sheathing other than wood structural panels shall not be
permitted in Seismic Design Category E or F (see Section
1613).
2305.3.2 Deflection. Permissible deflection shall be that
deflection up to which the shear wall and any attached dis-
tributing or resisting element will maintain its structural
integrity under design load conditions, i.e., continue to sup-
port design loads without danger to occupants of the struc-
ture.
The deflection (A) of a blocked wood structural panel
shear wall uniformly fastened throughout is permitted to be
calculated by the use of the following equation:
A = + - — -I- 0.75he„
Eab Gt
For SI: A =
+ d.
he.
(Equation 23-2)
vh^ vh
3Eab'^Gt^ 401.6
■^ + -^r^ + d.
where:
A = Area of boundary element cross section in square
inches (mm^) (vertical member at shear wall bound-
ary).
b = Wall width, in feet (mm).
d^ = Vertical elongation of overturning anchorage (includ-
ing fastener slip, device elongation, anchor rod elon-
gation, etc.) at the design shear load ( v ).
E = Elastic modulus of boundary element (vertical mem-
ber at shear wall boundary), in pounds per square inch
(N/mm2).
e„ = Nail or staple deformation, in inches (mm) [see Table
2305.2.2(1)].
Gt = Panel rigidity through the thickness, in pounds per
inch (N/mm) of panel width or depth [see Table
2305.2.2(2)].
h = Wall height, in feet (mm).
V = Maximum shear due to design loads at the top of the
wall, in pounds per Hnear foot (N/mm).
A = The calculated deflection, in inches (mm).
2305.3.3 Construction. Wood shear walls shall be con- la
LA
structed of wood structural panels manufactured with exte- la
rior glue and not less than 4 feet by 8 feet (1219 mm by 2438 la
mm) except at boundaries and at changes in framing. All la
edges of all panels shall be supported by and fastened to [-^
framing members or blocking. Wood structural panel thick- la
ness for shear walls shall not be less than that set forth in j-^
Table 2304.6 for corresponding framing spacing and loads la
and shall be at least Vg inch (9.5 mm) thick with studs spaced [^
no more than 16 inches (406 mm) on center. la
2305.3.4 Shear wall aspect ratios. Size and shape of shear
walls, perforated shear wall segments within perforated
shear walls and wall piers within shear walls that are
designed for force transfer around openings shall be limited
as set forth in Table 2305.3.4. The height, h, and the width,
w, shall be determined in accordance with Sections 2305.3.5
through 2305.3.5.2 and 2305.3.6 through 2305.3.6.2,
respectively.
y ///////////// ^ ^ / ^ ^ /?/// J ^ / ^ / ^ ^ ^ f ^ J f / ^ J / /
Force
< — ►
//■///^//■yyy^J?f^/^^^?/?f^JJ/?J/J^^^//////
Cantilevered
Diaphragm
> V
w
FIGURE 2305.2.5(2)
DIAPHRAGM LENGTH AND WIDTH FOR PLAN VIEW OF CANTILEVERED DIAPHRAGM
2008 CITY OF LOS ANGELES BUILDING CODE
31 3R
WOOD
TABLE 2305.3.4
MAXIMUM SHEAR WALL DIMENSION RATIOS
TYPE
MAXIMUM HEIGHT-
WIDTH RATIO
Wood structural panels or
particleboard, nailed edges
For other than seismic: 3 '/2:1
For seismic: 2:1^
Diagonal sheathing, single
2:1
Fiberboard
1V,:1
Gypsum board, gypsum lath,
cement plaster
1V2:1^'
a. For design to resist seismic forces, shear wall height-width ratios greater
than 2: 1 , but not exceeding 3 Vji 1 , are permitted provided the allowable shear
values in Table 2306.4. 1 are multiplied by 2w/h.
b. Ratio shown is for unblocked construction. Height-to-width ratio is permit-
ted to be 2: 1 where the wall is installed as blocked construction in accor-
dance with Section 2306.4.5. 1 .2.
2305o3.S Shear' wall height defimtion. The height of a
shear wall, h, shall be defined as:
1 . The maximum clear height from the top of the foun-
dation to the bottom of the diaphragm framing above;
or
2. The maximum clear height from the top of the dia-
phragm to the bottom of the diaphragm framing above
[see Figure 2305.3.5(a)].
^.5.1 Perforated! shear wall segment height defi-
. The height of a perforated shear wall segment, h.
shall be defined as specified in Section 2305.3.5 for shear
walls.
2305.3.5.2 Force transfer shear wall pier height defi-
nition. The height, h, of a wall pier in a shear wall with
openings designed for force transfer ai^ound openings
shall be defined as the clear height of the piei* at the side
of an opening [see Figure 2305.3.5(b)].
2305.3.6 Shear wall width definition. The width of a shear
wall, w, shall be defined as the sheathed dimension of the
shear wall in the direction of application of force [see Figure
2305.3.5(a)].
2305.3.6.1 Perforated shear wall segment width defi-
nition. The width of a perforated shear wall segment, w,
shall be defined as the width of full-height sheathing
adjacent to openings in the perforated shear wall [see
Figure 2305.3.5(a)].
• 2305.3.6.2 Force transfer shear wall pier width defi-
nition. The width, w, of a wall pier in a shear wall with
openings designed for force transfer ai'ound openings
shall be defined as the sheathed width of the pier at the
side of an opening [see Figure 2305.3.5(b)].
2305.3.7 Overturning restraint. Where the dead load sta-
bilizing moment in accordance with Chapter 16 allowable
stress design load combinations is not sufficient to prevent
uplift due to overturning moments on the wall, an anchoring
device shall be provided. Anchoring devices shall maintain
a continuous load path to the foundation.
OEmiLBdLM>AHy
MEMBERS FOR
FORCE TRANSFER
AROUND OPENIhtG,
TYPKyU.
raUNDATtON
( HEIGHT-TO-WIOTH RATIO
FOR SHEAR WALLS AND
PiRFORATED SHEAR WM.LS
(b) HEIGHT-TO-WIDTH RATIO WITH OEStGH
FOR FORCE TRANSFER AROUND OPEi>JINGS
FIGURE 2305.3.5
GEiSSERAL DEFINITION OF SHEAR WALL HEIGHT, WIDTH AND HEIGHT-TO-WBDTH RATIO
31 4R
2008 CITY OF LOS ANGELES BUILDING CODE
WOOD
•
LA
LA
LA
LA
LA
LA
LA
A
A
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
-A
'LA
LA
opposite faces, fiberboard structural sheathing and gypsum
wallboard on opposite faces or hardboard panel siding and
gypsum wallboard on opposite faces shall equal the sum of
the sheathing capacities of each face separately.
2305.3.10 Adhesives. Adhesive attachment of shear wall
sheathing is*not permitted as a substitute for mechanical fas-
teners, and shall not be used in shear wall strength calcula-
tions alone, or in combination with mechanical fasteners in
Seismic Design Category D, E or F.
2305.3.11 Sill plate size and anchorage in Seismic Design
Categories D, E or F. Anchor bolts for shear walls shall
include steel plate washers a minimum of 0.229 inch by 3
inches by 3 inches (5.82 mm by 76 mm by 76 mm) in size, or
as per Table 2305.3.11, between the sill plate and nut. The
hole in the plate washer is permitted to be diagonally slotted
with a width of up to ^/le of an inch (4.76 mm) larger than the
bolt diameter and a slot length not to exceed IV4 inches (44
mm), provided a standard cut washer is placed between the
plate washer and the nut. Sill plates resisting a design load
greater than 490 plf (7154 N/m) using load and resistance
factor design or 350 plf (5110 N/m) using allowable stress
design shall not be less than a 3-inch (76 mm) nominal mem-
ber. Where a single 3-inch (76 mm) nominal sill plate is used,
2-20d box end nails shall be substituted for 2-16d common
end nails found in line 8 of Table 2304.9.1.
Exception: In shear walls where the design load is greater
than 490 plf (7151 N/m) but less than 840 plf (12 264
N/m) using load and resistance factor design or greater
than 350 plf (5110 N/m) but less than 600 plf (8760 N/m)
using allowable stress design, the sill plate is permitted to
be a 2-inch (51 mm) nominal member if the sill plate is
anchored by two times the number of bolts required by
design and 0.229-inch by 3-inch by 3-inch (5.82 mm by
76 mm by 76 mm) plate washers are used.
TABLE 2305.3.11
MINIMUM SIZE FOR SQUARE PLATE WASHERS
AITC113
AITC117
Standard for Dimensions of Structural Glued
Laminated Timber
BOLT SIZE
(inches)
PLATE WASHER SIZE
(Inches by inches by inches)
V,
V,.x2x2
%
V4 X 2V, X 2V,
'U
V,rt X 23/^ X 2^/4
y.
V,.x3x3
1
3/rX3'/,x3V,
For SI: 1 inch = 25.4 mm.
SECTION 2306
ALLOWABLE STRESS DESIGN
2306.1 Allowable stress design. The structural analysis and
construction of wood elements in structures using allowable
stress design shall be in accordance with the following applica-
ble standards:
American Forest & Paper Association.
NDS National Design Specification for Wood Construction
American Institute of Timber Construction.
AITC 104 Typical Construction Details
AITC 110 Standard Appearance Grades for Structural
Glued Laminated Timber
Standard Specifications for Structural Glued
Laminated Timber of Softwood Species
AITC 119 Structural Standard Specifications for Glued
Laminated Timber of Hardwood Species
AITC A 1 90. 1 Structural Glued Laminated Timber
AITC 200 Inspection Manual
American Society of Agricultural Engineers.
ASAEEP 484.2 Diaphragm Design of Metal-Clad,
Post-Frame Rectangular Buildings
ASAE EP 486.1 Shallow Post Foundation Design
ASAE 559 Design Requirements and Bending Properties
for Mechanically Laminated Columns
APA — The Engineered Wood Association.
Panel Design Specification
Plywood Design Specification Supplement 1 -
Design & Fabrication of Plywood Curved Panel
Plywood Design Specification Supplement 2 -
Design & Fabrication of Glued Plywood-Lumber Beams
Plywood Design Specification Supplement 3 -
Design & Fabrication of Plywood Stressed-Skin Panels
Plywood Design Specification Supplement 4 -
Design & Fabrication of Plywood Sandwich Panels
Plywood Design Specification Supplement 5 -
Design & Fabrication of All-Plywood Beams
EWS T300 Glulam Connection Details
EWS S560 Field Notching and Drilling of Glued Lami-
nated Timber Beams
EWS S475 Gljied Laminated Beam Design Tables
EWS X450 Glulam in Residential Construction
EWS X440 Product and Application Guide: Glulam
EWS R540 Builders Tips: Proper Storage and Handling of
Glulam Beams
Truss Plate Institute, Inc.
TPI 1 National Design Standard for Metal Plate Connected
. Wood Truss Construction
2306.1.1 Joists and rafters. The design of rafter spans is
permitted to be in accordance with the AF&PA Span Tables
for Joists and Rafters.
2306.1.2 Plank and beam flooring. The design of plank
and beam flooring is permitted to be in accordance with the
AF&PA Wood Construction Data No. 4.
2306.1.3 Treated wood stress adjustments. The allowable
unit stresses for preservative-treated wood need no adjust-
ment for treatment, but are subject to other adjustments.
The allowable unit stresses for fire-retardant-treated wood,
including fastener values, shall be developed from an
approved method of investigation that considers the effects of
anticipated temperature and humidity to which the fire-retar-
dant-treated wood will be subjected, the type of treatment and
the redrying process. Other adjustments are applicable except
that the impact load duration shall not apply.
2008 CITY OF LOS ANGELES BUILDING CODE
31 7R
WOOD
23(06.1.4 Lember decMmg. The capacity of lumber decking
arranged according to the patterns described in Section
2304.8.2 shall be the lesser of the capacities determined for
flexure and deflection according to the formulas in Table
2306.1.4.
TABLE 2306.1 .4
ALLOWABLE LOADS FOR LUMBER DECKBiSIG
PAIIbRN
ALLOWABLE AREA LOAD'"
Flexure
Deflection
Simple span
3S4AE' d'
^A 51'* 12
Two-span continuous
„ 8f; d'
IS5AE' d^
A l' 12
Combination simple- and
two-span continuous
131AE' d'^
Cantilevered pieces
intermixed
' 3/^ 6
105AE' d^
^A- ^4 12
Controlled random layup
Mechanically laminated
decking
20FI d'
100A£' d^
^A " /4 12
2-inch decking
2of; d'
lOOAE' d^
""a - ^4 12
3-inch and 4-inch decking
2of; d^
116AE' d^
A ^4 12
For SI: 1 inch = 25.4 mm.
a. cjj = Allowable total uniform load limited by bending,
a^ = Allowable total uniform load limited by deflection.
h. d = Actual decking thickness.
/ = Span of decking.
F/ = Allowable bending stress adjusted by applicable factors.
E' = Modulus of elasticity adjusted by applicable factors.
.2.1 Wall sted bemdieg stress increase. The AF&PA
NDS fiber stress in bending (Ft ) design values for sawn
lumber wood studs resisting out of plane wind loads shall be
increased by the factors in Table 2306.2. 1 , in lieu of the 1 . 1 5
repetitive member factor. These increases take into consid-
eration the load sharing and composite actions provided by
the wood structural panels as defined in Section 2302. 1 . The
increases shall apply where the studs are designed for bend-
ing and are spaced no more than 16 inches (406 mm) o.c,
covered on the inside with a minimum of Va-inch (12.7 mm)
gypsum board fastened in accordance with Table 2306.4.5
and sheathed on the exterior with a minimum of Vg-inch (9.5
mm) wood structural panel sheathing. All panel joints shall
occur over studs or blocking and shall be attached using a
minimum of 8d common nails spaced a maximum of 6
inches o.c. (152 mm) at panel edges and 12 inches o.c. (305
mm) at intermediate framing members.
TABLE 2306.2.1
WALL STUD BENDING STRESS INCREASE FACTORS
STUD SIZE
SYSTEM FACTOR
2x4
1.5
2x6
1.35
2x8
1.25
2x10
1.2
2x12
1.15
2306.3 Wood diaphragms.
23®6.3ol Wood structural panel diaphragms. Wood
structural panel diaphragms are permitted to resist horizon-
tal forces using the allowable shear capacities set forth in
Tables 2306.3.1 or 2306.3.2, provided staples as fasteners
are not used.
Exception: Staples designated in Tables 2306.3.1 and
2306.3.2 may be used for wood stractural panel dia-
phragms to resist seismic loading when the allowable
shear values of Tables 2306.3.1 and 2306.3.2 are substan-
tiated by cyclic testing and approved by the Department.
All wood structural panel shear wall capacities shall be
established by an approved test report considering cyclic
loading.
2306.3.2 Shear capacities modifications. The allowable
shear capacities in Tables 2306.3.1 and 2306.3.2 for hori-
zontal wood structural panel diaphragms shall be increased
40 percent for wind design.
:#
2306.3.3 Diagonally sheathed lumber diaphragms.
Diagonally sheathed lumber diaphragms shall be nailed in
accordance with Table 2306.3.3.
2306.3.4 Single diagonally sheathed lumber dia-
phragms. Single diagonally sheathed lumber diaphragms
shall be constructed of minimum 1-inch (25 mm) thick
nominal sheathing boards laid at an angle of approximately
45 degrees (0.78 rad) to the supports. The shear capacity for
single diagonally sheathed lumber diaphragms of southern
pine or Douglas fir-larch shall not exceed 300 plf (4378
N/m) of width. The shear capacities shall be adjusted by
reduction factors of 0.82 for framing members of species
with a specific gravity equal to or greater than 0.42 but less
than 0.49 and 0.65 for species with a specific gravity of less
than 0.42, as contained in the AF&PA NDS.
TABLE 2306.3.3
DIAGONALLY SHEATHED LUMBER DIAPHRAGM NAILING SCHEDULE
SHEATHING NOMINAL
DIMENSION
NAILING TO INTERMEDIATE AND
END-BEARING STUDS
NAILING AT THE SHEAR
PANEL BOUNDARIES
Tvpe, size and number of nails per board
Common nails
Box nails
Common nails
Box nails
1x6
2-8d
3-8d
3-8d
5-8d
1x8
3-8d
4-8d
4-8d
6-8d
2x6
2-16d
3-16d
3-16d
5 - 16d
2x8
3-16d
4-16d
4-16d
6-16d
31 8R
2008 CITY OF LOS ANGELES BUILDING CODE
WOOD
m
LA
LA
LA
LA
LA
LA
LA
LA
LA
|LA
FLA
LA
LA
LA
LA
LA
LA
LA
LA
|la
Fla
LA
LA
LA
LA
LA
2306.3.4-1 ^"*^ joints. End joints in adjacent boards
shall be separated by at least one stud or joist space and
there shall be at least two boards between joints on the
same support.
2306.3.4.2 Single diagonally sheathed lumber dia-
phragms. Single diagonally sheathed lumber diaphragms
made up of 2-inch (51 mm) nominal diagonal lumber
sheathing fastened with 16d nails shall be designed with
the same shear capacities as shear panels using 1-inch (25
mm) boards fastened with 8d nails, provided there are not
splices in adjacent boards on the same support and the
supports are not less than 4 inch (102 mm) nominal depth
or 3 inch (76 mm) nominal thickness.
2306.3.5 Double diagonally sheathed lumber dia-
phragms. Double diagonally sheathed lumber diaphragms
shall be constructed of two layers of diagonal sheathing
boards at 90 degrees (1 .57 rad) to each other on the same face
of the supporting members. Each chord shall be considered
as a beam with uniform load per foot equal to 50 percent of
the unit shear due to diaphragm action. The load shall be
assumed as acting normal to the chord in the plan of the dia-
phragm in either direction. The span of the chord or portion
thereof shall be the distance between framing members of the
diaphragm, such as the joists, studs and blocking that serve to
transfer the assumed load to the sheathing. The shear capacity
of double diagonally sheathed diaphragms of Southern pine
or Douglas fir-larch shall not exceed 600 plf (8756 kN/m) of
width. The shear capacity shall be adjusted by reduction fac-
tors of 0.82 for framing members of species with a specific
gravity equal to or greater than 0.42 but less than 0.49 and
0.65 for species with a specific gravity of less than 0.42, as
contained in the AF&PA NDS. Nailing of diagonally
sheathed lumber diaphragms shall be in accordance with
Table 2306.3.3.
2306.3.6 Gypsum board diaphragm ceilings. Gypsum
board diaphragm ceilings shall be in accordance with Sec-
tion 2508.5.
2306.4 Shear walls. Panel sheathing joints in shear walls shall
occur over studs or blocking. Adjacent panel sheathing joints shall
occur over and be nailed to common framing members (see Sec-
tion 2305.3.1 for limitations on shear wall bracing materials).
2306.4.1 Wood structural panel shear walls. The allowable
shear capacities for wood structural panel shear walls shall be
in accordance with Table 2306.4.1 of this Code. These capaci-
ties are permitted to be increased 40 percent for wind design.
The maximum allowable shear value for three-ply plywood
resisting seismic forces is 200 pounds per foot (2.92 kn/m).
Nails shall be placed not less than V2 inch (12.7 mm) in from
the panel edges and not less than Vg of an inch (9.5 mm) from
the edge of the connecting members for shear greater than 350
pounds per foot (5 . 1 IkN/m). Nails shall be placed not less than
Vg of an inch (9.5 mm) from panel edges and not less than 'A of
an inch (6.4 mm) from the edge of the connecting members for
shears of 350 pounds per foot (5.11kN/m) or less.
Wood structural panel shear walls that use staples as fas-
teners shall not be permitted.
All wood structural panel shear wall capacities shall be
established by an approved test report considering cyclic
loading.
2306.4.2 Lumber sheathed shear walls. Single and double
diagonally sheathed lumber diaphragms are permitted using
the construction and allowable load provisions of Sections
2306.3.4 and 2306.3.5.
2306.4.3 Particleboard shear walls. The design shear
capacity of particleboard shear walls shall be in accordance
with Table 2306.4.3. Shear panels shall be constructed with
particleboard sheets not less than 4 feet by 8 feet (1219 mm
by 2438 mm), except at boundaries and changes in framing.
Particleboard panels shall be designed to resist shear only,
and chords, collector members and boundary elements shall
be connected at all comers. Panel edges shall be backed with
2-inch (5 1 mm) nominal or wider framing. Sheets are permit-
ted to be installed either horizontally or vertically. For ^/g-inch
(9.5 mm) particleboard sheets installed with the long dimen-
sion parallel to the studs spaced 24 inches (610 mm) o.c, nails
shall be spaced at 6 inches (152 mm) o.c. along intermediate
framing members. For all other conditions, nails of the same .
size shall be spaced at 12 inches (305 mm) o.c. along interme-
diate framing members. Particleboard panels less than 12
inches (305 mm) wide shall be blocked. Particleboard shall
not be used to resist seismic forces in structures in Seismic
Design Category D, E or F.
2306.4.4 Fiberboard shear walls. The design shear capacity
of fiberboard shear walls shall be in accordance with Table
2306.4.4. The fiberboard sheathing shall be applied vertically
or horizontally to wood studs not less than 2 inch (51 mm) in
nominal thickness spaced 16 inches (406 mm) o.c. Blocking not
less than 2 inch (5 1 mm) nominal in thickness shall be provided
at horizontal joints. Fiberboard shall not be used to resist seismic
forces in structures in Seismic Design Category D, E or F.
2306.4.5 Shear walls sheathed with other materials. Shear J-^
LA
capacities for walls sheathed with lath, plaster or gypsum la
board shall be in accordance with Table 2306.4.5. Shear walls [^^
sheathed with lath, plaster or gypsum board shall be con- la
stmcted in accordance with Chapter 25 of this Code and Sec- ]^
tion 2306.4.5.1. Walls resisting seismic loads shall be subject la
to the Umitations in Section 12.2.1 of ASCE 7. The allowable [^
shear values shown in Table 2306.4.5 for materials in Category la
1 are limited to 90 pound per foot (1.31 kN/m) and materials in l^
Categories 2 through 4 are limited to 30 pounds per foot (438 i-A
N/m). tJ
2306.4.5.1 Application of gypsum board or lath and
plaster to wood framing.
2306.4.5.1.1 Joint staggering. End joints of adjacent
courses of gypsum board shall not occur over the
same stud.
2306.4.5.1.2 Blocking. Where required in Table
2306.4.5, wood blocking having the same cross-sec-
tional dimensions as the studs shall be provided at
joints that are perpendicular to the studs.
2306.4.5.1.3 Fastening. Studs, top and bottom plates
and blocking shall be fastened in accordance with
Table 2304.9.1.
2306.4.5.1.4 Fasteners. The size and spacing of fas-
teners shall be set forth in Table 2306.4.5. Fasteners
shall be spaced not less than Vg inch (9.5 mm) from
edges and ends of gypsum boards or sides of studs,
blocking and top and bottom plates.
2008 CITY OF LOS ANGELES BUILDING CODE
323R
TABLE 2306.4.1
ALLOWABLE SHEAR (POUNDS PER FOOT) FOR WOOD STRUCTURAL PANEL SHEAR WALLS WITH
FRAMING OF DOUGLAS FIR-LARCH OR SOUTHERN PINE^ FOR WIND OR SEISMIC LOADING""''''"
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PANEL GRADE
MINIMUM NOMINAL PANEL
THICKNESS (inch)
MINIMUM FASTENER
PENETRATION IN
FRAMING (inches)
PANELS APPLIED DIRECT TO FRAMING
PANELS APPLIED OVER Vg" OR V GYPSUM SHEATHING
NAIL (common or galvanized box)
or staple size
Fastener spacing at panel edges (inches)
NAIL (common or galvanized box)
or staple size
Fastener spacing at panel edges (inches)
6
4
3
2"
6
4
3
2*
Structural I
Sheathing
%e
1 '/
1 '4
6d (2" X 0.113" common,
2" X 0.099" galvanized box)
150
200
200
200
6d (2" X 0. ) 1 3" common,
2" X 0.099" galvanized box)
200
300
390
510
'8
,3,
' '8
8d(2'/2"x 0.131" common,
2'//' x 0.1 1 3" galvanized box)
200
200
200
200
8d (2'/2" X 0.131" common,
2'/2" X 0. 1 13" galvanized box)
230"
360"
460"
610"
\e
,3/
' '8
8d (2 Vj" X 0. 1 3 1 " common,
2'//' X 0.113" galvanized box)
255"
395"
505"
670"
8d(2'/2"x 0.131" common,
2 '/," x 0. 11 3" galvanized box)
255"
395"
505"
670"
%2
l3/
i '8
8d (2 V2" X 0. 1 3 1" common,
2V2" X 0. 113" galvanized box)
280
430
550
730
8d(2'/2"x 0.131" common,
2'/," X 6. 113" galvanized box)
280
430
550
730
I '2
lOd (3" X 0. 148" common,
3" X 0. 128" galvanized box)
340
510
665^
870
lOd (3" X 0. 148" common,
3" X 0.128" galvanized box)
340
510
665'"
870
Sheathing,
plywood siding"
except Group 5
Species
'/.6 0r'//
1 '/
1 /4
6d (2" X 0.1 13" common,
2" X 0.099" galvanized box)
180
200
200
200
6d (2" X 0. 113" common,
2" X 0.099" galvanized box)
180
270
350
450
\
,1,
' '4
6d (2" X 0.1 13" common,
2" X 0.099" galvanized box)
200
200
200
200
6d (2" X 0.1 13" common,
2" X 0.099" galvanized box)
200
300
390
510
l3/
' '8
8d (2V2" X 0.131" common,
2'/2" X 0.1 13" galvanized box)
220
200
200
200
8d(2'/2"x 0.131" common,
2'/2" X 0.1 13" galvanized box)
220"
320"
410"
530"
^/,6
l3/
' '8
8d(2V2"x 0.1 31" common,
2 V2" X 0. 1 1 3" galvanized box)
240''
350"
450"
585"
8d (2'/2" X 0.131" common,
2 '72" X 0.113" galvanized box)
240"
350"
450"
585"
'32
l3/
^ '8
8d(2'/2"x 0.131" common,
2V2" X 0. 1 ] 3" galvanized box)
260
380
490
640
8d (2 V2" X 0. 1 3 1" common,
2'/2" X 0.113" galvanized box)
260
380
490
640
.1/
1 /2
lOd (3" X 0.148" common,
3" X 0. 1 28" galvanized box)
310
460
600^
IIQ
lOd (3" X 0.148" common,
3" X 0.128" galvanized box)
310
460
600^
770
'%2
,1/
I '2
lOd (3" X 0.148" common,
3" X 0.128" galvanized box)
340
510
665*^
870
lOd (3" X 0.148" common,
3" X 0. 1 28" galvanized box)
340
510
665"^
870
Nail Size (galvanized casing)
Nail Size (galvanized casing)
=/,.^
,1/
1 '4
6d (2" X 0.099")
140
200
200
200
6d (2" X 0.099")
140
210
275
360
%
,3/
8d(2'/2"x0.113")
160
200
200
200
8d(2V2"x0.113")
160
240
310
410
For SI: 1 inch = 25.4 mm, 1 pound per foot = 14.5939 N/m.
1 . For framing of other species: ( 1 ) Find specific gravity for species of lumber in AF&PA NDS. (2) For nails find shear value from table above for nail size for actual grade and multiply value by the following adjustment factor: Specific Gravity
Adjustment Factor = [l-(0.5-SG)], where SG = Specific Gravity of the framing lumber. This adjustment factor shall not be greater than one.
2. Panel edges backed with 2-inch nominal or thicker framing. Install panels either horizontally or vertically. Space fasteners maximum 6 inches on center along intermediate framing members for Vg-inch and '/is-inch panels installed on studs
spaced 24 inches on center. For other conditions and panel thickness, space fasteners maximum 12 inches on center on intermediate supports. 1 Vg-inch panel thickness or siding with a span rating of 16 inches on center is the minimum recom-
mended where applied direct to framing as exterior siding.
3. Except for wood structural panel sheathing used for shear walls that are part of the seismic-force-resisting system, allowable shear values are permitted to be increased to values shown for 'Vjj-inch sheathing with same nailing provided (a) studs
are spaced a maximum of 16 inches on center, or (b) panels are applied with long dimension across studs.
4. Framing at adjoining panel edges shall be three inches nominal or wider, and nails shall be staggered where nails are spaced 2 inches on center.
5. Framing at adjoining panel edges shall be three inches nominal or wider, and nails shall be staggered where both of the following conditions are met: (1 ) lOd (3" x 0.148") nails having penetration into framing of more than 1 V, inches and (2)
nails are spaced three inches on center.
6. Values apply to all-veneer plywood. Thickness at point of fastening on panel edges governs shear values.
7. Where panels applied on both faces of a wall and nail spacing is less than six inches on center on either side, panel joints shall be offset to fall on different framing members, or framing shall be three-inch nominal or thicker at adjoining pane!
edges and nails on each side shall be staggered.
8. In Seismic Design Category D, E or F, where shear design values exceed 350 pounds per linear foot, all framing members receiving edge nailing from abutting panels shall not be less than a single three-inch nominal member, or two two-inch
nominal m.em.bers fastened together in accordance with Section 2306. 1 to transfer the design shear value between framing members. Wood structural panel joint and sill plate nailing shall be staggered in all cases. See Section 2305.3. 1 1 for
sill plate size and anchorage requirements.
9. Galvanized nails shall be hot dipped or tumbled.
10. The maximum allowable shear value for three-ply plywood resisting seismic forces is 200 pounds per foot (2.92 kg/m).
1 1 . For shear loads of normal or permanent load duration as defined by the AF&PA NDS, the values in the table above shall be multiplied by 0.63 or 0.56, respectively.
12. [DSA-SS & OSHPD 1, 2 and 4] Refer to Section 2305.2.4.2, which requires any wood structural panel sheathing used for diaphragms and shear walls that are part of the seismic-force-resisting system to be applied directly to framing members.
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
WOOD
TABLE 2306.4.3
ALLOWABLE SHEAR FOR PARTICLEBOARD SHEAR WALL SHEATHING"
PANEL GRADE
MINIMUM NOMINAL
PANEL THICKNESS
(inch)
MINIMUM NAIL
PENETRATION IN
FRAMING
(inches)
PANELS APPLIED DIRECT TO FRAMING
Nail size (common or
galvanized box)
Allowable shear (pounds per foot) nail spacing at
panel edges (inches)^
6
4
3
2
M-S "Exterior Glue"
and M-2 "Exterior
Glue"
\
IV2
6d
120
180
230
300
\
IV,
8d
130
190
240
315
%
140
210
270
350
%
1%
lOd
185
275
360
460
\
200
305
395
520
For SI: 1 inch = 25.4 mm, 1 pound per foot = 14.5939 N/m.
a. Values are not permitted in Seismic Design Category D, E or F.
b. Galvanized nails shall be hot-dipped or tumbled.
TABLE 2306.4.4
ALLOWABLE SHEAR VALUES (pif) FOR WIND OR SEISMIC LOADING ON
SHEAR WALLS OF FIBERBOARD SHEATHING BOARD CONSTRUCTION FOR TYPE V CONSTRUCTION ONLY^ "^''^'a •^
THICKNESS AND GRADE
FASTENER SIZE
SHEAR VALUE
(pounds per linear foot)
3-INCH NAIL SPACING AROUND PERIMETER AND
6-INCH AT INTERMEDIATE POINTS
V2" Structural
No. 1 1 gage galvanized
roofing nail 1 V," long, "^/jg" head
1252
2^32" Structural
No. 1 1 gage galvanized
roofing nail 1^/4" long, '^/jg" head
1758
For SI: 1 inch = 25.4 mm, 1 pound per foot = 14.5939 N/m.
a. Fiberboard sheathing diaphragms shall not be used to brace concrete or masonry walls.
b. Panel edges shall be backed with 2 inch or wider framing of Douglas fir-larch or Southern pine.
c. Fiberboard sheathing on one side only.
d. Fiberboard panels are installed with their long dimension parallel or perpendicular to studs.
e. Fasteners shall be spaced 6 inches on center along intermediate framing members.
f For framing of other species: (1) Find specific gravity for species of lumber in AF&PA NDS and (2) Multiply the shear value from the above table by 0.82 for spe-
cies with specific gravity of 0.42 or greater, or 0.65 for all other species,
g. The same values can be applied when staples are used as described in Table 2304.9.1.
h. Values are not permitted in Seismic Design Category D, E or F.
m
2306.4.5.1.5 Gypsum lath. Gypsum lath shall be
applied perpendicular to the studs. Maximum allowable
shear values shall be as set forth in Table 2306.4.5.
2306.4.5.1.6 Gypsum sheathing. Four-foot-wide
(1219 mm) pieces of gypsum sheathing shall be
applied parallel or perpendicular to studs.
Two-foot- wide (610 mm) pieces of gypsum sheathing
shall be applied perpendicular to the studs. Maximum
allowable shear values shall be as set forth in Table
2306.4.5.
2306.4.5.1.7 Other gypsum boards. Gypsum board
shall be applied parallel or perpendicular to studs.
Maximum allowable shear values shall be as set forth
in Table 2306.4.5.
LA 2306.5 Hold-down connectors. Hold-down connectors shall
LA
A be designed to resist shear wall overturning moments using
A approved cyclic load values or 75 percent of the allowable
LA earthquake load values that do not consider cyclic loading of
Yi the product. Connector bolts into wood framing require steel
LA plate washers in accordance with Table 2305.3. 1 1 of this Code.
Hold-downs shall be re-tightened just prior to covering the wall
framing.
2306.6 Shear wall displacement analysis. Wood structural
panel shear walls shall meet the story drift limitation of Section
12.12.1 of ASCE 7. Conformance to the story drift limitation
shall be determined by approved testing or calculation or anal-
ogies drawn from the approved testing and not the use of an
aspect ratio. Calculated deflection shall be determined accord-
ing to Section 2305.3.2 and shall be increased 25 percent to
account for inelastic action and repetitive loading. Contribu-
tion to the deflection from the anchor or tie down slippage shall
also be included. The slippage contribution shall include the
vertical elongation of the metal, the vertical slippage of the fas-
teners and compression or shrinkage of the wood elements.
The total vertical slippage shall be multiplied by the aspect
ratio and added to the total horizontal deflection.
2306.7 Quality of nails. Mechanically driven nails used in shear wall
panel construction shall meet the same tolerances as that required for
hand driven nails. The allowable design value for clipped nails in
existing constraction may be taken at no more than the nail-head-area
ratio of that of the same size hand driven nails.
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
2008 CDTY OF LOS ANGELES BUILDING CODE
325R
TABLE 2306.4.5
ALLOWABLE SHEAR FOR WIND OR SEISMIC FORCES FOR SHEAR WALLS OF LATH
AND PLASTER OR GYPSUM BOARD WOOD FRAMED WALL ASSEMBLIES
TYPE OF WIATEROAL
THICKNESS
OF MATERIAL
WALL
CONSTRUCTION
FASTENER SPACING"
MAXIMUM (inches)
SHEAR VALUE^'^
(Pif)
MINIMUM
FASTENER SiZE'-^'"
1 . Expanded metal or woven wire lath and
Portland cement plaster
'l{
Unblocked
6
180
No. 1 1 gage 1 '//' long, '/,/' head
16 Ga. Galv. Staple, '//' legs
2, Gypsum lath, plain or perforated
^/g" lath and
Vj" plaster
Unblocked
5
100
No. 1 3 gage, 1 '//' long, "/„" head,
plasterboard nail
16 Ga. Galv. Staple, iV," long
0.120" Nail, min. V," head, l'//' long
3. Gypsum sheathing
Vj" X 2' X 8'
Unblocked
4
75
No. 1 1 gage, \^l" long, V,/' head,
diamond-point, galvanized
16 Ga. Galv. Staple, iV/' long
V/' X 4'
Blocked*"
Unblocked
4
7
175
100
Vx4'
Blocked
4" edge/
7" field
200
6d galvanized
0.120" Nail, min. V," head, iV," long
4. Gypsum board, gypsum veneer base or
water-resistant gypsum backing board
'//
Unblocked^
7
75
5d cooler (iV/' x .086") or wallboard
0.120" nail, min. V, " head, iV, " long
1 6 Gage Staple, l7/'long
Unblocked^
4
110
Unblocked
7
100
Unblocked
4
125
Blocked^
7
125
Blocked^
4
150
Unblocked
8/12''
60
No. 6 1 '//' screws'
Blocked^
4/16"
160
Blocked^
4/12"
155
Blocked'' B
8/12''
70
Blocked^
6/12''
90
%"
Unblocked'
7
115
6d cooler ( 17," x 0.092") or wallboard
0.120" Nail, min. '/," head, 1 V/' long
16 Gage Staple, l7/' legs, iV," long
4
145
Blocked^
7
145
4
175
Blocked^
Two-ply
Base ply: 9
Face ply: 7
250
Base ply-6d cooler (iV," x 0.092") or
wallboard 1 V/' x 0. 120" Nail, min. V/' head
IV/' 16 Ga. Galv. Staple
IV3" 16 Gage Galv. Staple
Face ply-8d cooler (27/' x 0.1 13") or
wallboard
0.120" Nail, min. V," head, 2%" long
15 Ga. Galv. Staple, 2'//' long
Unblocked
8/12''
70
No. 6-1 '//'screws'
Blocked^
8/12''
90
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per foot = 14.5939 N/m.
a. These shear walls shall not be used to resist loads imposed by masonry or concrete construction (see Section 2305.1.5). Values shown are for short-term loading due to wind or
seismic loading. Walls resisting seismic loads shall be subject to the limitations in Section 12.2.1 of ASCE 7. Values shown shall be reduced 25 percent for normal loading.
b. Applies to fastening at studs, top and bottom plates and blocking.
c. Alternate fasteners are permitted to be used if their dimensions are not less than the specified dimensions. Drywall screws are permitted to substitute for the 5d (iV/' x 0.086"), and
6d (1 '//' x 0.092")(cooler) nails listed above, and No. 6 l'/^ inch IVpe S or W screws for 6d (17/' x 0.092) (cooler) nails.
d. For properties of cooler nails, see ASTM C 514.
e. Except as noted, shear values are based on a maximum framing spacing of 1 6 inches on center.
f. Maximum framing spacing of 24 inches on center.
g. All edges are blocked, and edge fastening is provided at all supports and all panel edges.
h. First number denotes fastener spacing at the edges; second number denotes fastener spacing at intermediate framing members.
i. Screws are Type W or S.
j. Staples shall have a minimum crown width of 7|(, inch, measured outside the legs, and shall be installed with their crowns parallel to the long dimension of the framing members.
k. Staples for the attachment of gypsum lath and woven- wire lath shall have a minimum crown width of 7^ inch, measured outside the legs.
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SECTION 2307
LOAD AND RESISTANCE FACTOR DESIGN
2307.1 Load and resistance factor design. The structural
analysis and construction of wood elements and structures
using load and resistance factor design shall be in accordance
with AF&PA NDS.
2307.1.1 Wood structural panel shear walls. In Seismic
Design Category D, E or F, where shear design values
exceed 490 pounds per foot (7154 N/m), all framing mem-
bers receiving edge nailing from abutting panels shall not be
less than a single 3-inch (76 mm) nominal member or two
2-inch (51 mm) nominal members fastened together in
accordance with AF&PA NDS to transfer the design shear
value between framing members. Wood structural panel
joint and sill plate nailing shall be staggered in all cases. See
Section 2305.3.1 1 for sill plate size and anchorage require-
ments.
SECTION 2308
CONVENTIONAL LIGHT-FRAME CONSTRUCTION
2308.1 General. The requirements of this section are intended
for conventional light-frame construction. Other methods are
permitted to be used, provided a satisfactory design is submit-
ted showing compliance with other provisions of this code.
Interior-bearing partitions, ceilings and curtain walls of con-
ventional light-frame construction are not subject to the limita-
tions of this section. Alternatively, compliance with AF&PA
WFCM shall be permitted subject to the limitations therein and
the limitations of this code.
2308.1.1 Portions exceeding limitations of conventional
construction. When portions of a building of otherwise
conventional construction exceed the limits of Section
2308.2, these portions and the supporting load path shall be
designed in accordance with accepted engineering practice
and the provisions of this code. For the purposes of this sec-
tion, the term "portions" shall mean parts of buildings con-
taining volume and area such as a room or a series of rooms.
2308.2 Limitations. Buildings are permitted to be constructed
in accordance with the provisions of conventional light-frame
construction, subject to the following limitations and the fur-
ther limitations of Sections 2308.1 1 and 2308. 12.
1 . Buildings shall be limited to a maximum of three stories
above grade plane. For the purposes of this section, for
buildings in Seismic Design Category D or E as deter-
mined in Section 1613 of this Code, cripple stud walls
shall not be considered to be a story, provided the cripple
stud walls are solid blocked and do not exceed 14 inches
(356mm) in height measured from the top of the footing
to th e bottom of the floor joist.
2. Bearing wall stud height shall not exceed ten feet (3048
mm). The height of floor framing shall not exceed 16
inches (406 mm).
3. Loads as determined in Chapter 16 of this Code shall not
exceed the following:
3.1. Average dead loads shall not exceed 15 psf (718
N/m^) for the combined roof and ceiling, exterior
walls, floors and partitions.
Exceptions:
1. Subject to the limitations of Sections
2308.11.2 and 2308.12.2, stone or
masonry veneer up to the lesser of 5
inches (127 mm) thick or 50 psf (2395
N/m^) and installed in accordance with
Chapter 14 of this Code is permitted to a
height of 30 feet (9144 mm) above a
noncombustible foundation with an addi-
tional 8 feet (2438 mm) permitted for
gable ends.
2. Concrete or masonry fireplaces, heaters
and chimneys shall be permitted in accor-
dance with the provisions of this Code.
3.2. Ground snow loads shall not exceed 50 psf (2395
N/m2).
3.3. Ground snow loads shall not exceed 50 psf (2395
N/m2).
4. Wind speeds shall not exceed 100 miles per hour (mph)
(44 m/s) (3-second gust).
Exception: Wind speeds shall not exceed 110 mph
(48.4 m/s) (3-second gust) for buildings in Exposure
Category B.
5. Roof trusses and rafters shall not span more than 40 feet
(12 192 mm) between points of vertical support.
6. The provisions of this section shall not apply to Occu-
pancy Category IV buildings assigned to Seismic Design
Category B, C, D, E or F, as determined in Section 1613
of this Code.
7 . Conventional light-frame construction is limited in irreg-
ular structures in Seismic Design Category D or E, as
specified in Section 2308.12.6.
8. For all occupancies, interior nonload-bearing partitions
8 feet (2348 mm) or higher shall be laterally braced at the
top at eight feet (2348 mm) maximum on center.
2308.2.1 Basic wind speed greater than 100 mph (3-sec-
ond gust). Where the basic wind speed exceeds 100 mph
(3-second gust), the provisions of either AF&PA WFCM, or
the SBCCI SSTD 10 are permitted to be used.
2308.2.2 Buildings in Seismic Design Category B, C, D or
E. Buildings of conventional light-frame construction in
Seismic Design Category B or C, as determined in Section
1613, shall comply with the additional requirements in Sec-
tion 2308.11.
Buildings of conventional light-frame construction in
Seismic Design Category D or E, as determined in Section
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2008 CITY OF LOS ANGELES BUILDING CODE
327R
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1613, shall comply with the additional requirements in Sec-
tion 2308.12.
Exceptions:
1. [HCD ]] Detached one- and two- family dwell-
ings in Seismic Design Category B.
2. [HCD 1] Detached one- and two- family dwell-
ings in Seismic Design Category C where masonry
veneer is limited to the first two stories above
grade.
2308.3 Braced wall lines. Buildings shall be provided with
exterior and interior braced wall lines as described in Section
2308.9.3 and installed in accordance with Sections 2308.3.1
through 2308.3.4.
2308.3.1 Spacing. Spacing of braced wall lines shall not
exceed 35 feet (10 668 mm) o.c. in both the longitudinal and
transverse directions in each story.
2308.3.2 Braced wall panel connections. Forces shall be
transferred from the roofs and floors to braced wall panels
and from the braced wall panels in upper stories to the
braced wall panels in the story below by the following:
1 . Braced wall panel top and bottom plates shall be fas-
tened to joists, rafters or full-depth blocking. Braced
wall panels shall be extended and fastened to roof
framing at intervals not to exceed 50 feet (15 240 mm)
between parallel braced wall lines.
Exception: Where roof trusses are used, lateral
forces shall be transferred from the roof dia-
phragm to the braced wall by blocking of the ends
of the trusses or by other approved methods.
2. Bottom plate fastening to joist or blocking below shall
be with not less than 3-16d nails at 16 inches (406
mm) o.c.
3. Blocking shall be nailed to the top plate below with
not less than 3-8d toenails per block.
4. Joists parallel to the top plates shall be nailed to the
top plate with not less than 8d toenails at 6 inches (152
mm) o.c.
In addition, top plate laps shall be nailed with not less
than 8-16d face nails on each side of each break in the top
plate.
2308.3.3 Sill anchorage. Where foundations are required
by Section 2308.3.4, braced wall line sills shall be anchored
to concrete or masonry foundations. Such anchorage shall
conform to the requirements of Section 2308.6 except that
such anchors shall be spaced at not more than 4 feet (1219
mm) o.c. for structures over two stories in height. The
anchors shall be distributed along the length of the braced
wall line. Other anchorage devices having equivalent capac-
ity are permitted.
2308.3.3.1 Anchorage to all- wood foundations. Where
all- wood foundations are used, the force transfer from
the braced wall lines shall be determined based on calcu-
lation and shall have a capacity greater than or equal to
the connections required by Section 2308.3.3.
2308.3.4 Braced wall line support. Braced wall lines shall
be supported by continuous foundations.
Exception: For structures with a maximum plan dimen-
sion not over 50 feet (15 240 mm), continuous founda-
tions are required at exterior walls only.
2308.4 Design of elements. Combining of engineered ele-
ments or systems and conventionally specified elements or sys-
tems is permitted subject to the following limits:
2308.4.1 Elements exceeding limitations of conventional
construction. When a building of otherwise conventional
construction contains structural elements exceeding the
limits of Section 2308.2, these elements and the supporting
load path shall be designed in accordance with accepted
engineering practice and the provisions of this code.
2308.4.2 Structural elements or systems not described
herein. When a building of otherwise conventional con-
struction contains structural elements or systems not
described in Section 2308, these elements or systems shall
be designed in accordance with accepted engineering prac-
tice and the provisions of this code. The extent of such
design need only demonstrate compliance of the
nonconventional elements with other applicable provisions
of this code and shall be compatible with the performance of
the conventionally framed system.
2308.5 Connections and fasteners. Connections and fasten-
ers used in conventional construction shall comply with the
requirements of Section 2304.9.
2308.6 Foundation plates or sills. Foundations and footings
shall be as specified in Chapter 18 of this Code. Foundation
plates or sills resting on concrete or masonry foundations shall
comply with Section 2304.3.1. Foundation plates or sills shall
be bolted or anchored to the foundation with not less than
Vj-inch-diameter (12.7 mm) steel bolts or approved anchors.
Bolts shall be embedded at least 7 inches (178 mm) into con-
crete or masonry and spaced not more than 6 feet (1829 mm)
apart. There shall be a minimum of two bolts or anchor straps
per piece with one bolt or anchor strap located not more than 1 2
inches (305 mm) or less than 4 inches (102 mm) from each end
of each piece. A properly sized nut and washer shall be tight-
ened on each bolt to the plate as per Table 2305.3.11 in this
Chapter.
2308.7 Girders. Girders for single-story construction or gird-
ers supporting loads from a single floor shall not be less than 4
inches by 6 inches (102 mm by 152 mm) for spans 6 feet
(1829 mm) or less, provided that girders are spaced not more
than 8 feet (2438 mm) o.c. Spans for built-up 2-inch (5 1 mm)
girders shall be in accordance with Table 2308.9.5 or
2308.9.6. Other girders shall be designed to support the loads
specified in this code. Girder end joints shall occur over sup-
ports.
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2008 CITY OF LOS ANGELES BUILDING CODE
WOOD
Where a girder is spliced over a support, an adequate tie shall
be provided. The ends of beams or girders supported on
masonry or concrete shall not have less than 3 inches (76 mm)
of bearing.
2308.8 Floor joists. Spans for floor joists shall be in accor-
dance with Table 2308.8(1) or 2308.8(2). For other grades and
or species, refer to the AF&PA Span Tables for Joists and Raf-
ters.
2308.8.1 Bearing. Except where supported on a 1-inch by
4-inch (25.4 mm by 102 mm) ribbon strip and nailed to the
adjoining stud, the ends of each joist shall not have less than
V/i inches (38 mm) of bearing on wood or metal, or less
than 3 inches (76 mm) on masonry.
2308.8.2 Framing details. Joists shall be supported later-
ally at the ends and at each support by solid blocking
except where the ends of the joists are nailed to a header,
band or rim joist or to an adjoining stud or by other means.
Solid blocking shall not be less than 2 inches (51mm) in
thickness and the full depth of the joist. Notches on the
ends of joists shall not exceed one-fourth the joist depth.
Holes bored in joists shall not be within 2 inches (5 1 mm)
of the top or bottom of the joist, and the diameter of any
such hole shall not exceed one-third the depth of the joist.
Notches in the top or bottom of joists shall not exceed
one-sixth the depth and shall not be located in the middle
third of the span.
Joist framing from opposite sides of a beam, girder or
partition shall be lapped at least 3 inches (76 mm) or the
opposing joists shall be tied together in an approved man-
ner.
Joists framing into the side of a wood girder shall be sup-
ported by framing anchors or on ledger strips not less than 2
inches by 2 inches (51 mm by 51 mm).
2308.8.2.1 Engineered wood products. Cuts, notches
and holes bored in trusses, structural composite lumber,
structural glue-laminated members or I-joists are not
permitted except where permitted by the manufacturer's
recommendations or where the effects of such alterations
are specifically considered in the design of the member
by a registered design professional.
2308.8.3 Framing around openings. Trimmer and
header joists shall be doubled, or of lumber of equivalent
cross section, where the span of the header exceeds 4 feet
(1219 mm). The ends of header joists more than 6 feet
(1829 mm) long shall be supported by framing anchors or
joist hangers unless bearing on a beam, partition or wall.
Tail joists over 12 feet (3658 mm) long shall be supported
at the header by framing anchors or on ledger strips not
less than 2 inches by 2 inches (51 mm by 51 mm).
2308.8.4 Supporting bearing partitions. Bearing parti-
tions parallel to joists shall be supported on beams, girders,
doubled joists, walls or other bearing partitions. Bearing
partitions perpendicular to joists shall not be offset from
supporting girders, walls or partitions more than the joist
depth unless such joists are of sufficient size to carry the
additional load.
2308.8.5 Lateral support. Floor, attic and roof framing
with a nominal depth-to-thickness ratio greater than or
equal to 5:1 shall have one edge held in line for the entire
span. Where the nominal depth-to-thickness ratio of the
framing member exceeds 6:1, there shall be one line of
bridging for each 8 feet (2438 mm) of span, unless both
edges of the member are held in line. The bridging shall con-
sist of not less than 1-inch by 3-inch (25 mm by 76 mm)
lumber, double nailed at each end, of equivalent metal brac-
ing of equal rigidity, full-depth solid blocking or other
approved means. A line of bridging shall also be required at
supports where equivalent lateral support is not otherwise
provided.
2308.8.6 Structural floor sheathing. Structural floor
sheathing shall comply with the provisions of Section
2304.7.1.
2308.8.7 Under-floor ventilation. For under-floor ventila-
tion, see Section 1203.3.
2308.9 Wall framing.
2308.9.1 Size, height and spacing. The size, height and
spacing of studs shall be in accordance with Table 2308.9.1
except that utility-grade studs shall not be spaced more than
16 inches (406 mm) o.c, or support more than a roof and
ceiling, or exceed 8 feet (2438 mm) in height for exterior
walls and load-bearing walls or 10 feet (3048 mm) for inte-
rior nonload-bearing walls.
2308.9.2 Framing details. Studs shall be placed with their
wide dimension perpendicular to the wall. Not less than
three studs shall be installed at each comer of an exterior
wall.
Exception: At corners, two studs are permitted, pro-
vided wood spacers or backup cleats of Vg-inch-thick
(9.5 mm) wood structural panel, Vg-inch (9.5 mm) Type
M "Exterior Glue" particleboard, 1 -inch-thick (25 mm)
lumber or other approved devices that will serve as an
adequate backing for the attachment of facing materials
are used. Where fire-resistance ratings or shear values
are involved, wood spacers, backup cleats or other
devices shall not be used unless specifically approved for
such use.
2008 CITY OF LOS ANGELES BUILDING CODE
329R
TABLE 2308.8(1)
FLOOR JOIST SPANS FOR COMP.ION !
(Residential Sleeping Areas, Live Load
.UBABER SPECIES
= 30 psf , L/A = 360)
JOIST
SPACING
(inches)
SPECIES AND GRADE
DEAD LOAD = 10 psf
DEAD LOAD = 20 psf
2x6 1 2x8 I 2x10 | 2x12
2x6 1 2x8 1 2x10 { 2x12
Maximum floor joist spans
(ft. - in.)
(ft. - in.)
(ft. - in.)
(ft. - in.)
(ft. - in.)
(ft. - in.)
(ft. - in.)
(ft. - in.)
12
Douglas Fir-Larch SS
Douglas Fir-Larch #1
Douglas Fir-Larch #2
Douglas Fir-Larch #3
12-6
12-0
11-10
9-8
16-6
15-10
15-7
12-4
21-0
20-3
19-10
15-0
25-7
24-8
23-0
17-5
12-6
12-0
11-6
8-8
16-6
15-7
14-7
11-0
21-0
19-0
17-9
13-5
25-7
22-0
20-7
15-7
Hem-Fir SS
Hem-Fir #1
Hem-Fir #2
Hem-Fir #3
11-10
11-7
11-0
9-8
15-7
15-3
14-6
12-4
19-10
19-5
18-6
15-0
24-2
23-7
22-6
17-5
11-10
11-7
11-0
8-8
15-7
15-2
14-4
11-0
19-10
18-6
17-6
13-5
24-2
21-6
20-4
15-7
Southern Pine SS
Southern Pine #1
Southern Pine #2
Southern Pine #3
12-3
12-0
11-10
10-5
16-2
15-10
15-7
13-3
20-8
20-3
19-10
15-8
25-1
24-8
24-2
18-8
12-3
12-0
11-10
9-4
16-2
15-10
15-7
11-11
20-8
20-3
18-7
14-0
25-1
24-8
21-9
16-8
Spruce-Pine-Fir SS
Spruce-Pine-Fir #1
Spruce-Pine-Fir #2
Spruce-Pine-Fir #3
11-7
11-3
11-3
9-8
15-3
14-11
14-11
12-4
19-5
19-0
19-0
15-0
23-7
23-0
23-0
17-5
11-7
11-3
11-3
8-8
15-3
14-7
14-7
11-0
19-5
17-9
17-9
13-5
23-7
20-7
20-7
15-7
16
Douglas Fir-Larch SS
Douglas Fir-Larch #1
Douglas Fir-Larch #2
Douglas Fir-Larch #3
11-4
10-11
10-9
8-5
15-0
14-5
14-1
10-8
19-1
18-5
17-2
13-0
23-3
21-4
19-11
15-1
11-4
10-8
9-11
7-6
15-0
13-6
12-7
9-6
19-1
16-5
15-5
11-8
23-0
19-1
17-10
13-6
Hem-Fir SS
Hem-Fir #1
Hem-Fir #2
Hem-Fir #3
10-9
10-6
10-0
8-5
14-2
13-10
13-2
10-8
18-0
17-8
16-10
13-0
.21-11
20-9
19-8
15-1
10-9
10-4
9-10
7-6
14-2
13-1
12-5
9-6
18-0
16-0
15-2
11-8
21-11
18-7
17-7
13-6
Southern Pine SS
Southern Pine #1
Southern Pine #2
Southern Pine #3
11-2
10-11
10-9
9-0
14-8
14-5
14-2
11-6
18-9
18-5
18-0
13-7
22-10
22-5
21-1
16-2
11-2
10-11
10-5
8-1
14-8
14-5
13-6
10-3
18-9
17-11
16-1
. 12-2
22-10
21-4
18-10
14-6
Spruce-Pine-Fir SS
Spruce-Pine-Fir #1
Spruce-Pine-Fir #2
Spruce-Pine-Fir #3
10-6
10-3
10-3
8-5
13-10
13-6
13-6
10-8
17-8
17-2
17-2
13-0
21-6
19-11
19-11
15-1
10-6
9-11
9-11
7-6
13-10
12-7
12-7
9-6
17-8
15-5
15-5
11-8
21-4
17-10
17-10
13-6
(continued)
TABLE 2308.8(2)— continued
FLOOR JOIST SPANS FOR COMMON LUMBER SPECIES
(Residential Living Areas, Live Load = 40 psf, L/A = 360)
JOIST
SPACING
(inches)
SPECIES AND GRADE
DEAD LOAD = 10 psf
DEAD LOAD = 20 psf
2x6
2x8
2x10
2x12
2x6
2x8
2x10
2x12
Maximum floor ioist spans
(ft. - in.)
(ft. - In.)
(ft. -in.)
(ft. -in.)
(ft. -in.)
(ft. - in.)
(ft. - in.)
(ft. - in.)
Douglas Fir-Larch
SS
9-8
12-10
16-4
19-10
9-8
12-10
16-4
19-2
Douglas Fir-Larch
#1
9-4
12-4
15-0
17-5
8-10
11-3
13-8
15-11
Douglas Fir-Larch
#2
9-1
11-6
14-1
16-3
8-3
10-6
12-10
14-10
Douglas Fir-Larch
#3
6-10
8-8
10-7
12-4
6-3
7-11
9-8
11-3
Hem-Fir
SS
9-2
12-1
15-5
18-9
9-2
12-1
15-5
18-9
Hem-Fir
#1
9-0
11-10
14-8
17-0
8-8
10-11
13-4
15-6
Hem-Fir
#2
8-7
11-3
13-10
16-1
8-2
10-4
12-8
14-8
19.2
Hem-Fir
#3
6-10
8-8
10-7
12-4
6-3
7-11
9-8
11-3
Southern Fine
SS
9-6
12-7
16-0
19-6
9-6
12-7
16-0
19-6
Southern Pine
#1
9-4
12-4
15-9
19-2 ■
9-4
12-4
14-11
17-9
Southern Pine
#2
9-2
12-1
14-8
17-2
8-8
11-3
13-5
15-8
Southern Pine
#3
7-4
9-5
11-1
13-2
6-9
8-7
10-1
12-1
Spruce-Pine-Fir
SS
9-0
11-10
15-1
18-4
9-0
11-10
15-1
17-9
Spruce-Pine-Fir
#1
8-9
11-6
14-1
16-3
8-3
10-6
12-10
14-10
Spruce-Pine-Fir
#2
8-9
11-6
14-1
16-3
8-3
10-6
12-10
14-10
Spruce-Pine-Fir
#3
6-10
8-8
10-7
12-4
6-3
7-11
" 9-8
11-3
Douglas Fir-Larch
SS
9-0
11-11
15-2
18-5
9-0
11-11
14-9
17-1
Douglas Fir-Larch
#1
8-8
11-0
13-5
15-7
7-11
10-0
12-3
14-3
Douglas Fir-Larch
#2
8-1
10-3
12-7
14-7
7-5
9-5
11-6
13-4
Douglas Fir-Larch
#3
6-2
7-9
9-6
11-0
5-7
7-1
8-8
10-1
Hem-Fir
SS
8-6
11-3
14-4
17-5
8-6
11-3
14-4
16-10"
Hem-Fir
#1
8-4
10-9
13-1
15-2
7-9
9-9
11-11
13-10
Hem- Fir
#2
7-11
10-2
12-5
14-4
7-4
9-3
11-4
13-1
24
Hem-Fir
#3
6-2
7-9
9-6
11-0
5-7
7-1
8-8
10-1
Southern Pine
SS
8-10
11-8
14-11
18-1
8-10
11-8
14-11
18-1
Southern Pine
#1
8-8
11-5
14-7
17-5
8-8
11-3
13-4
15-11
Southern Pine
#2
8-6
11-0
13-1
15-5
7-9
10-0
12-0
14-0
Southern Pine
#3
6-7
8-5
9-11
11-10
6-0
7-8
9-1
10-9
Spruce-Pine-Fir
SS
8-4
11-0
14-0
17-0
8-4
11-0
13-8
15-11
Spruce-Pine-Fir
#1
8-1
10-3
12-7
14-7
7-5
9-5
11-6
13-4
Spruce-Pine-Fir
#2
8-1
10-3
12-7
14-7
7-5
9-5
11-6
13-4
Spruce-Pine-Fir
#3
6-2
7-9
9-6
11-0
5-7
7-1
8-8
10-1
Check sources for availability of lumber in lengths greater than 20 feet.
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 47.8 N/m^
a. End bearing length shall be increased to 2 inches.
O
O
o
WOOD
TABLE 2308.9.1
SIZE, HE8GHT AND SPACING OF WOOD STUDS
STUD SIZE
(inches)
BEARING WALLS
NONBEARING WALLS
Laterally unsupported
stud height"
(feet)
Supporting roof
and ceiling only
Supporting one
floor, roof
and ceiling
Supporting two floors,
roof and ceiling
Laterally unsupported
stud height"
(feet)
Spacing
(inches)
Spacing
(inches)
2x3"
10
16
2x4
10
24
16
14
24
3x4
10
24
24
16
14
24
2x5
10
24
24
16
24
2x6
10
24
24
16
20
24
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
a. Listed heights are distances between points of lateral support placed perpendicular to the plane of the wall. Increases'in unsupported height Jire permitted where
justified by an analysis.
b. Shall not be used in exterior walls.
2308.9.2.4 Plates or sills. Studs shall have full bearing
on a plate or sill not less than 2 inches (5 1 mm) in thick-
ness having a width not less than that of the wall studs.
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
LA
.9.2.1 Top plates. Bearing and exterior wall studs
shall be capped with double top plates installed to pro-
vide overlapping at corners and at intersections with
other partitions. End joints in double top plates shall be
offset at least 48 inches (1219 mm), and shall be nailed
with not less than eight 16d face nails on each side of the
joint. Plates shall be a nominal 2 inches (5 1 mm) in depth
and have a width at least equal to the width of the studs.
Exceptiom: A single top plate is permitted, provided
the plate is adequately tied at joints, comers and inter-
secting walls by at least the equivalent of 3-inch by
6-inch (76 mm by 152 mm) by 0.036-inch-thick
(0.9 14 mm) galvanized steel that is nailed to each wall
or segment of wall by six 8d nails or equivalent, pro-
vided the rafters, joists or trusses are centered over the
studs with a tolerance of no more than 1 inch (25 mm).
.9.2.2 Top plates for studs spaced at 24 inches
mm). Where bearing studs are spaced at 24-inch
(610 mm) intervals and top plates are less than two
2-inch by 6-inch (51 mm by 152 mm) or two 3 -inch by
4-inch (76 mm by 102 mm) members and where the floor
joists, floor trusses or roof trusses that they support are
spaced at more than 16-inch (406 mm) intervals, such
joists or trusses shall bear within 5 inches (127 mm) of
the studs beneath or a third plate shall be installed.
L9.2.3 Noebearimig walls and partitions. In
nonbearing walls and partitions, studs shall be spaced not
more than 28 inches (711 mm) on center and are permit-
ted to be set with the long dimension parallel to the wall.
Interior nonbearing partitions shall be capped with no
less than a single top plate installed to provide overlap-
ping at comers and at intersections with other walls and
partitions. The plate shall be continuously tied at the
joints by solid blocking at least 16 inches (406 mm) in
length and equal in size to the plate or by '^-inch by
IVj-inch (12.7 mm by 38 mm) metal ties with spliced
sections fastened with two 16d common nails on each
side of the joint. Nonbearing partitions 8 feet (2348 mm)
or higher shall be laterally braced at the top at 8 feet
(2348 mm) maximum on center.
2308.9.3 Bracing. Braced wall lines shall consist of braced
wall panels that meet the requirements for location, type and
amount of bracing as shown in Figure 2308.9.3, specified in
Table 2308.9.3(1) and are in line or offset from each other
by not more than 4 feet (1219 mm). Braced wall panels shall
start not more than 12'/2-feet (3810 mm) from each end of a
braced wall line. Braced wall panels shall be clearly indi-
cated on the plans. Constmction of braced wall panels shall
be by one of the following methods:
1. Nominal 1-inch by 4-inch (25 mm by 102 mm) con-
tinuous diagonal braces let into top and bottom plates
and intervening studs, placed at an angle not more
than 60 degrees (1.0 rad) or less than 45 degrees (0.79
rad) from the horizontal and attached to the framing in
conformance with Table 2304.9. 1 .
2. Wood boards of Vg inch (15.9 mm) net minimum
thickness applied diagonally on studs spaced not over
24 inches (610 mm) o.c.
3. Wood stmctural panel sheathing with a thickness not
less than Vjg inch (7.9 mm) for a 16-inch (406 mm)
stud spacing and not less than Vg inch (9.5 mm) for a
24-inch (610 mm) stud spacing in accordance with
Tables 2308.9.3(2) and 2308.9.3(3).
4. Fiberboard sheathing panels not less than Vj inch
(12.7 mm) thick applied vertically or horizontally on
studs spaced not over 16 inches (406 mm) o.c. where
installed with fasteners in accordance with Section
2306.4.4 and Table 2306.4.4.
5. Gypsum board [sheathing '/2-inch-thlck (12.7 mm)
by 4-feet-wide (1219 mm) wallbojird or veneer base]
on studs spaced not over 24 inches (610 mm) o.c. and
nailed at 7 inches (178 mm) o.c. with nails as required
by Table 2306.4.5.
6. Particleboard wall sheathing panels where installed in
accordance with Table 2308.9.3(4).
7 . Portland cement plaster on studs spaced 1 6 inches (406
mm) o.c. installed in accordance with Section 2510.
#
334R
2008 CITY OF LOS ANGELES BUILDING CODE
o
o
00
o
TABLE 2308.10.3(4)— continued
RAFTER SPANS FOR COMMON LUMBER SPECIES
(Ground Snow Load = 50 pounds per square foot, Ceiling Not Attached to Rafters, L/A ■■
180)
RAFTER
SPACING
(inches)
SPECIES AND GRADE
DEAD LOAD = 10 pounds per square foot
DEAD LOAD = 20 pounds per square foot
2x4 1 2x6 1 2x8 1 2x10 1 2x12
2x4 1 2x6 1 2x8 1 2x10 1 2x12
Maximum rafter spans
(ft. - in.)
m. - in.i
m. - In.l
(ft. - in.)
(ft. - in.)
(ft. - in.)
(ft. - in.)
(ft. - in.)
(ft. - in.)
(ft. - in.)
19.2
Douglas Fir-Larch SS
7-3
11-4
14-6
17-8
20-6
7-3
10-7
13-5
16-5
19-0
Douglas Fir-Larch #1
6-6
9-6
12-0
14-8
17-1
6-0
8-10
11-2
13-7
15-9
Douglas Fir-Larch #2
6-1
8-11
11-3
13-9
15-11
5-7
8-3
10-5
12-9
14-9
Douglas Fir-Larch #3
4-7
6-9
8-6
10-5
12-1
4-3
6-3
7-11
9-7
11-2
Hem-Fir SS
6-10
10-9
14-2
17-5
20-2
6-10
10-5
13-2
16-1
18-8
Hem-Fir #1
6-4
9-3
11-9
14-4
16-7
5-10
8-7
10-10
13-3
15-5
Hem-Fir #2
6-0
8-9
11-1
13-7
15-9
5-7
8-1
10-3
12-7
14-7
Hem-Fir #3
4-7
6-9
8-6
10-5
12-1
4-3
6-3
7-11
9-7
11-2
Southern Pine SS
7-1
11-2
14-8
18-9
22-10
7-1
11-2
14-8
18-7
21-9
Southern Pine #1
7-0
10-8
13-5
16-0
19-1
6-8
9-11
12-5
14-10.
17-8
Southern Pine #2
6-6
9-4
12-0
14-4
16-10
6-0
8-8
11-2
13-4
15-7
Southern Pine #3
4-11
7-3
9-2
10-10
12-11
4-6
6-8
8-6
10-1
12-0
Spruce-Pine-Fir SS
6-8
10-6
13-5
16-5
19-1
6-8
9-10
12-5
15^3
17-8
Spruce-Pine-Fir #1
6-1
8-11
11-3
13-9
15-11
5-7
8-3
10-5
12-9
14-9
Spruce-Pine-Fir #2
6-1
8-11
11-3
13-9
15-11
5-7
8-3
10-5
12-9
14-9
Spruce-Pine-Fir #3
4-7
6-9
8-6
10-5
12-1
4-3
6-3
7-11
9-7
11-2
24
Douglas Fir-Larch SS
6-8
10-3
13-0
15-10
18-4
6-6
9-6
12-0
14-8
17-0
Douglas Fir-Larch #1
5-10
8-6
10-9
13-2
15-3
5-5
7-10
10-0
12-2
14-1
Douglas Fir-Larch #2
5-5
7-11
10-1
12-4
14-3
5-0
7-4
9-4
11-5
13-2
Douglas Fir-Larch #3
4-1
6-0
7-7
9-4
10-9
3-10
5-7
7-1
8-7
10-0
Hem-Fir SS
6-4
9-11
12-9
15-7
18-0
6-4
9-4
11-9
14-5
16-8
Hem-Fir #1
5-8
8-3
10-6
12-10
14-10
5-3
7-8
9-9
11-10
13-9
Hem-Fir #2
5-4
7-10
9-11
12-1
14-1
4-11-
7-3
9-2
11-3
13-0
Hem-Fir #3
4-1
6-0
7-7
9-4
10-9
3-10
5-7
7-1
8-7
10-0
Southern Pine SS
6-7
10-4
13-8
17-5
21-0
6-7
10-4
13-8
16-7
19-5
Southern Pine #1
6-5
9-7
12-0
14-4
17-1
6-0
8-10
11-2
13-3
15-9
Southern Pine #2
5-10
8-4
10-9
12-10
15-1
5-5
7-9
10-0
11-11
13-11
Southern Pine #3
4-4
6-5
8-3
.9-9
11-7
4-1
6-0
7-7
9-0
10-8
Spruce-Pine-Fir SS
6-2
9-6
12-0
14-8
17-1
6-0
8-10
11-2
13-7
15-9
Spruce-Pine-Fir #1
5-5
7-11
10-1
12-4
14-3
5-0
7-4
9-4
11-5
13-2
Spruce-Pine-Fir #2
5-5
7-11
10-1
12-4
14-3
5-0
7-4
9-4
11-5
13-2
Spruce-Pine-Fir #3
4-1
6-0
7-7
9-4
10-9
3-10
5-7
7-1
8-7
10-0
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 pound per square foot = 47.9 N/m".
a. Span exceeds 26 feet in length. Check sources for availability of lumber in lengths greater than 20 feet.
TABLE 2308.10.3(5)
RAFTER SPANS FOR COMMON LUMBER SPECIES
(Ground Snow Load = 30 pounds per square foot, Ceiling Attached to Rafters, L/A
= 240)
RAFTER
SPACING
(inches)
SPECIES AND GRADE
DEAD LOAD
= 10 pounds per square foot
DEAD LOAD
= 20 pounds per square foot
2x4
2x6
2x8 1 2x10
2x12
2x4
2x6
2x8
2x10
2x12
Maximum rafter soans
m. - In.i
(ft. - in.)
(ft. - in.)
m. - in.)
(ft. - in.)
(ft. - in.)
(ft. - in.)
(ft. - in.)
m. - in.)
(ft. - in.)
12
Douglas Fir-Larch
SS
9-1
14-4
18-10
24-1
Note a
9-1
14-4
18-10
24-1
Note a
Douglas Fir-Larch
#1
8-9
13-9
18-2
22-9
Note a
8-9
13-2
16-8
20-4
23-7
Douglas Fir-Larch
#2
8-7
13-6
17-5
21-4
24-8
8-5
12-4
15-7
19-1
22-1
Douglas Fir-Larch
#3
7-1
10-5
13-2
16-1
18-8
6-4
9-4
11-9
14-5
16-8
Hem-Fir
SS
8-7
13-6
17-10
22-9
Note a
8-7
13-6
17-10
22-9
Note a
Hem-Fir
#1
8-5
13-3
17-5
22-2
25-9
8-5
12-10
16-3
19-10
23-0
Hem-Fir
#2
8-0
12-7
16-7
21-0
24-4
8-0
12-2
15-4
18-9
21-9
Hem-Fir
#3
7-1
10-5
13-2
16-1
18-8
6-4
9-4
11-9
14-5
16-8
Southern Pine
SS
8-11
14-1
18-6
23-8
Note a
8-11
14-1
18-6
23-8
Note a
Southern Pine
#1
8-9
13-9
18-2
23-2
Note a
8-9
13-9
18-2
22-2
Note a
Southern Pine
#2
8-7
13-6
17-10
22-3
Note a
8-7
12-11
16-8
19-11
23-4
Southern Pine
#3
7-7
11-2
14-3
16-10
20-0
6-9
10-0
12-9
15-1
17-11
Spruce-Pine-Fir
SS
8-5
13-3
17-5
22-3
Note a
8-5
13-3
17-5
22-3
Note a
Spruce-Pine-Fir
#1
8-3
12-11
17-0
21-4
24-8
8-3
12-4
15-7
19-1
22-1
Spruce-Pine-Fir
#2
8-3
12-11
17-0
21-4
24-8
8-3
12-4
15-7
19-1
22-1
Spruce-Pine-Fir
#3
7-1
10-5
13-2
16-1
18-8
6-4
9-4
11-9
14-5
16-8
16
Douglas Fir-Larch
SS
8-3
13-0
17-2
21-10
Note a
8-3
13-0
17-2
21-3
24-8
Douglas Fir-Larch
#1
8-0
12-6
16-2
19-9
22-10
7-10
11-5
14-5
17-8
20-5
Douglas Fir-Larch
#2
7-10
11-11
15-1
18-5
21-5
7-3
10-8
13-6
16-6
19-2
Douglas Fir-Larch
#3
6-2
9-0
11-5
13-11
16-2
5-6
8-1
10-3
12-6
14-6
Hem-Fir
SS
7-10
12-3
16-2
20-8
25-1
7-10
12-3
16-2
20-8
24-2
Hem-Fir
#1
7-8
12-0
15-9
19-3
22-3
7-7
11-1
14-1
17-2
19-11
Hem-Fir
#2
7-3
11-5
14-11
18-2
21-1
7-2
10-6
13-4
16-3
18-10
Hem-Fir
#3
6-2
9-0
11-5
13-11
16-2
5-6
8-1
10-3
12-6
14-6
Southern Pine
SS
8-1
12-9
16-10
21-6
Note a
8-1
12-9
16-10
21-6
Note a
Southern Pine
#1
8-0
12-6
16-6
21-1
25-7
8-0
12-6
16-2
19-2
22-10
Southern Pine
#2
7-10
12-3
16-2
19-3
22-7
7-10
11-2
14-5
17-3
20-2
Southern Pine
#3
6-7
9-8
12-4
14-7
17-4
5-10
8-8
11-0
13-0
15-6
Spruce-Pine-Fir
SS
7-8
12-0
15-10
20-2
24-7
7-8
12-0
15-10
19-9
22-10
Spruce-Pine-Fir
#1
7-6
11-9
15-1
18-5
21-5
7-3
10-8
13-6
16-6
19-2
Spruce-Pine-Fi
#2
7-6
11-9
15-1
18-5
21-5
7-3
10-8
13-6
16-6
19-2
Spruce-Pine-Fi
#3
6-2
9-0
11-5
13-11
16-2
5-6
8-1
10-3
12-6
14-6
(continued)
Q
O
P
CHAPTER 30
ELEVATORS AND CONVEYING SYSTEMS
SECTION 3001
GENERAL
[-^ 3001.1 Scope. This chapter governs the design, construction,
LA installation, alteration and repair of elevators and conveying
^^ systems and their components. Ail elevators shall comply with
LA the additional requirements of the LA City Elevator Code.
3001.2 Referenced standards. Except as otherwise provided
for in this code, the design, construction, installation, alter-
ation, repair and maintenance of elevators and conveying sys-
tems and their components shall conform to ASME Al7.1,
ASME A90.1, ASME B20.1, ALI ALCTV, and ASCE 24 for
construction in flood hazard areas established in Section
1612.3.
3001.3 Accessibility. Passenger elevators and special access
lifts required to be accessible by Chapters llA or IIB shall
conform to Chapter llA for applications listed in Section
108.2.1.2 regulated by the Department of Housing and Com-
munity Development or Chapter 1 IB for applications listed in
Section 109.1 regulated by the Division of the State Archi-
tect — Access Compliance.
3001.4 Change in use. A change in use of an elevator from
freight to passenger, passenger to freight, or from one freight
class to another freight class shall comply with Part XII of
ASMEA17.1.
SECTION 3002
HOISTWAY ENCLOSURES
3002.1 Hoistway enclosure protection. Elevator, dumbwaiter
and other hoistway enclosures shall be shaft enclosures com-
plying with Section 707.
3002.1.1 Opening protectives. Openings in hoistway
enclosures shall be protected as required in Chapter 7.
Exception: The elevator car doors and the associated
hoistway enclosure doors at the floor level designated for
recall in accordance with Section 3003.2 shall bepermit-
ted to remain open during Phase I Emergency Recall
Operation.
3002.1.2 Hardware. Hardware on opening protectives
shall be of an approved type installed as tested, except that
approved interlocks, mechanical locks and electric contacts,
door and gate electric contacts and door-operating mecha-
nisms shall be exempt from the fire test requirements.
3002.2 Number of elevator cars in a hoistway. Where four or
more elevator cars serve all or the same portion of a building,
the elevators shall be located in at least two separate hoistways.
Not more than four elevator cars shall be located in any single
hoistway enclosure.
3002.3 Emergency signs. An approved pictorial sign of a stan-
dardized design shall be posted adjacent to each elevator call
station on all floors instructing occupants to use the exit stair-
ways and not to use the elevators in case of fire. The sign shall
read: IN FIRE EMERGENCY, DO NOT USE ELEVATOR.
USE EXIT STAIRS. The emergency sign shall not be required
for elevators that are part of an accessible means of egress com-
plying with Section 1007.4.
3002.4 Elevator car to accommodate ambulance stretcher.
Where elevators are provided in buildings four or more stories
above grade plane or four or more stories below grade plane, at
least one elevator shall be provided for fire department emer-
gency access to all floors. The elevator car shall be of such a
size and arrangement to accommodate a 24-inch by 84-inch
(610 mm by 1930 mm) ambulance stretcher in the horizontal,
open position and shall be identified by the international sym-
bol for emergency medical services (star of life). The symbol
shall not be less than 3 inches (76 mm) high and shall be placed
inside on both sides of the hoistway door frame.
The following California sections replace the corresponding
model code section for applications specified in Section 111 for
the Office of the State Fire Marshal.
3002.4a General stretcher requirements. All buildings and
structures with one or more passenger service elevators
shall be provided with not less than one medical emergency
service to all landings meeting the provisions of Section
3002.4a.
Exceptions:
1. Elevators in structures used only by maintenance
and operating personnel.
2. Elevators in jails and penal institutions.
3. Elevators in buildings or structures where each
landing is at ground level or is accessible at grade
level or by a ramp.
4. Elevator(s) in two-story buildings or structures
equipped with stairs of a configuration that will
accommodate the carrying of the gurney or
stretcher as permitted by the local jurisdictional
authority.
5. Elevators in buildings or structures less than four
stories in height for which the local jurisdictional
authority has granted an exception in the form of a
written document.
3002.4a.l Gurney size. The medical emergency service
elevator shall accommodate the loading and transport of
an ambulance gurney or stretcher [maximum size 24
inches by 84 inches (610 mm by 2134 mm)] in the hori-
zontal position.
3002.4a.2 Hoistway doors. The hoistway landing open-
ings shall be provided with power-operated doors.
2008 CITY OF LOS ANGELES BUILDING CODE
41 3R
ELEVATORS AND COiMVEYlNG SYSTEWiS
3002.4aJ Elevator entrance openings and car size. The
elevator car shall be of such a size and arrangement to
accommodate a 24-inch by 84-inch (610 mm by 2134 mm)
ambulance gurney or stretcher in the horizontal, open posi-
tion, shall be provided with a minimum clear distance
between walls or between walls and door excluding return
panels not less than 80 inches by 54 inches (2032 mm by
1372 mm), and a minimum distance from wall to return
panel not less than 51 inches (1295 mm) with a 42-inch
(1067 mm) side slide door.
Exception: The elevator car dimensions and/or the clear
entrance opening dimensions may be altered where it
can be demonstrated to the local jurisdictional author-
ity's satisfaction that the proposed configuration will
handle the designated gurney or stretcher with equiva-
lent ease. Documentation from the local authority shall
be provided to the Occupational Safety and Health Stan-
dards Board.
3002.4a.4 Elevator recall. The elevator(s) designated the
medical emergency elevator shall be equipped with a key
switch to recall the elevator nonstop to the main floor. For
the purpose of this section, elevators in compliance with
Section 3003.2.1.1 shall be acceptable.
3002.4a.5 Designation. Medical emergency elevators shall
be identified by the international symbol (Star of Life) for
emergency medical services.
3002.4a.6 Symbol size. The symbol shall not be less than 3
inches (76 mm) in size.
3002.4a.7 Symbol location. A symbol shall be permanently
attached to each side of the hoistway doorframe on the por-
tion of the frame at right angles to the hallway or landing
area. Each symbol shall be not less than 78 inches (1981
mm) and not more than 84 inches (2134 mm) above the floor
level at the threshold.
12,5 Emergency doors. Where an elevator is installed in a
single blind hoistway or on the outside of a building, there shall
be installed in the blind portion of the hoistway or blank face of
the building, an emergency door in accordance with ASME
A17.1.
doors. Doors, other than hoistway doors
and the elevator car door, shall be prohibited at the point of
access to an elevator car unless such doors are readily openable
from the car side without a key, tool, special knowledge or
effort.
)2.7 Common enclosere wnth stairway. Elevators shall not
be in a common shaft enclosure with a stairway.
L8 Glass in elevator enclosures. Glass in elevator enclo-
sures shall comply with Section 2409.1.
3002.9 Photoelectric tube bypass switch.
3002.9.1 Elevators equipped with photoelectric tube
devices which control the closing of automatic, power-oper-
ated car or hoistway doors, or both, shall have a switch in
the car which, when actuated, will render the photoelectric
tube device inejfective.
3002.9.2 The switch shall be constant-pressure type, requir-
ing not less than 10 pounds (44.5 N) or more than 15 pounds
(66. 7 N) pressure to actuate.
3002.9.3 The switch shall be located not less than 6 feet
(1829 mm) or more than 6 feet 6 inches (1981 mm) above the
car floor and shall be located in or adjacent to the operating
panel.
3002.9.4 The switch shall be clearly labeled: TO BE USED
IN CASE OF FIRE ONLY.
3002.9.5 Switches shall be kept in working order or be
removed when existing installations are arranged to comply
with Section 3002.9.5, Exception 1 or 2.
Exceptions:
1. Elevators installed and maintained in compliance
with Section 3003.2.1.
2. Where alternate means acceptable to the fire au-
thority having jurisdiction are provided that will
ensure the doors can close under adverse smoke
conditions.
[F] SECTION 3003
EMERGENCY OPERATSONS
[F] 3003.1 Standby power. In buildings and structures where
standby power is required or furnished to operate an elevator,
the operation shall be in accordance with Sections 3003.1.1
through 3003.1.4.
[F] 3003.1.1 Manual transfer. Standby power shall be
manually transferable to all elevators in each bank.
[F] 3003.1.2 One elevator. Where only one elevator is
installed, the elevator shall automatically transfer to standby
power within 60 seconds after failure of normal power.
[F] 3003.1.3 Two or more elevators. Where two or more
elevators are controlled by a common operating system, all
elevators shall automatically transfer to standby power
within 60 seconds after failure of normal power where the
standby power source is of sufficient capacity to operate all
elevators at the same time. Where the standby power source
is not of sufficient capacity to operate all elevators at the
same time, all elevators shall transfer to standby power in
sequence, return to the designated landing and disconnect
from the standby power source. After all elevators have
been returned to the designated level, at least one elevator
shall remain operable from the standby power source.
[F] 3003.1.4 Venting. Where standby power is connected to
elevators, the machine room ventilation or air conditioning
shall be connected to the standby power source.
[F] 3003.2 Fire-fighters' emergency operation. Elevators
shall be provided with Phase I emergency recall operation and
Phase II emergency in-car operation in accordance with ASME
A17.1.
2008 CITY OF LOS ANGELES BUILDING CODE
SPECIAL CONSTRUCTION
3104.3 Construction. The pedestrian walkway shall be of
noncombustibre construction.
Exceptions:
1. Combustible construction shall be permitted where
connected buildings are of combustible construction.
2. Fire-retardant-treated wood, in accordance with Sec-
tion 603.1, Item 1.3, shall be permitted for the roof
construction of the pedestrian walkway where con-
nected buildings are a minimum of Type I or II con-
struction.
3104.4 Contents. Only materials and decorations approved by
the building official shall be located in the pedestrian walkway.
3104.5 Fire barriers between pedestrian walkways and
buildings. Walkways shall be separated from the interior of the
building by fire-barrier walls with a fire-resistance rating of not
less than 2 hours. This protection shall extend vertically from a
point 10 feet (3048 mm) above the walkway roof surface or the
connected building roof line, whichever is lower, down to a
point 10 feet (3048 mm) below the walkway and horizontally
10 feet (3048 mm) from each side of the pedestrian walkway.
Openings within the 10-foot (3048 mm) horizontal extension of
the protected walls beyond the walkway shall be equipped with
devices providing a V4-hour fire protection rating in
accordance with Section 715.
Exception: The walls separating the pedestrian walkway
from a connected building are not required to have a
fire-resistance rating by this section where any of the fol-
lowing conditions exist:
1 . The distance between the connected buildings is more
than 10 feet (3048 mm), the pedestrian walkway and
connected buildings, except for open parking
garages, are equipped throughout with an automatic
sprinkler system in accordance with NFPA 13 and the
wall is constructed of a tempered, wired or laminated
glass wall and doors subject to the following:
1.1. The glass shall be protected by an automatic
sprinkler system in accordance with NFPA 13
and the sprinkler system shall completely wet
the entire surface of interior sides of the glass
wall when actuated.
1.2. The glass shall be in a gasketed frame and in-
stalled in such a manner that the framing sys-
tem will deflect without breaking (loading)
the glass before the sprinkler operates.
1.3. Obstructions shall not be installed between
the sprinkler heads and the glass.
2. The distance between the connected buildings is more
than 10 feet (3048 mm) and both sidewalls of the
pedestrian walkway are at least 50 percent open with
the open area uniformly distributed to prevent the
accumulation of smoke and toxic gases.
3. Buildings are on the same lot in accordance with Sec-
tion 503. 1.2.
4. Where exterior walls of connected buildings are
required by Section 704 to have a fire -resistance rat-
ing greater than 2 hours, the walkway shall be
equipped throughout with an automatic sprinkler sys-
tem installed in accordance with NFPA 13.
The previous exception shall apply to pedestrian walkways
have a maximum.height above grade of three stories or 40 feet
(12 192 mm), or five stories or 55 feet (16 764 mm) where
sprinklered.
3104.6 Public way. Pedestrian walkways over a public way
shall also comply with Chapter 32.
3104.7 Egress. Access shall be provided at all times to a pedes-
trian walkway that serves as a required exit.
3104.8 Width. The unobstructed width of pedestrian walk-
ways shall not be less than 36 inches (914 mm). The total width
shall not exceed 30 feet (9144 mm).
3104.9 Exit access travel. The length of exit access travel shall
not exceed 200 feet (60 960 mm).
Exceptions:
1 . Exit access travel distance on a pedestrian walkway
equipped throughout with an automatic sprinkler sys-
tem in accordance with NFPA 1 3 shall not exceed 250
feet (76 200 mm).
2. Exit access travel distance on a pedestrian walkway
constructed with both sides at least 50 percent open
shall not exceed 300 feet (91 440 mm).
3. Exit access travel distance on a pedestrian walkway
constructed with both sides at least 50 percent open,
and equipped throughout with an automatic sprinkler
system in accordance with NFPA 13, shall not exceed
400 feet (122 m).
3104.10 T\inneled walkway. Separation between the tunneled
walkway and the building to which it is connected shall not be
less than 2-hour fire-resistant construction and openings
therein shall be protected in accordance with Table 715.4.
SECTION 3105
AWNINGS AND CANOPIES
3105.1 General. Awnings or canopies shall comply with the
requirements of this section and other applicable sections of
this code.
3105.2 Deflnition. The following term shall, for the purposes
of this section and as used elsewhere in this code, have the
meaning shown herein.
RETRACTABLE AWNING. A retractable awning is a cover
with a frame that retracts against a building or other structure to
which it is entirely supported.
3105.3 Design and construction. Awnings and canopies shall
be designed and constructed to withstand wind or other lateral
loads and live loads as required by Chapter 16 with due allow-
ance for shape, open construction and similar features that
relieve the pressures or loads. Structural members shall be pro-
tected to prevent deterioration. Awnings shall have frames of
noncombustible material, fire-retardant-treated wood, wood of
Type IV size, or 1-hour construction with combustible or
noncombustible covers and shall be either fixed, retractable,
folding or collapsible.
2008 CITY OF LOS ANGELES BUILDING CODE
423
SPECIAL CONSTRUCTION
310S.4 Canopy materials. Canopies shall be constructed of a
rigid framework with an approved covering that meets the fire
propagation performance criteria of NFPA 701 or has a flame
spread index not greater than 25 when tested in accordance
with ASTM E 84.
SECTI©i^3106
MARQUEES
LA 3106.1 General. Marquees shall comply with this section and
LA other applicable sections of this Code. The plans and specifica-
L^ tions and the type, design, arrangement and location of every
LA marquee shall be approved by the Board of Cultural Affairs
[-^ Commissioners of the City of Los Angeles and the Board of
LA Public Works of tlie City of Los Angeles prior to the issuance of
^^ a building permit.
P.2 Thickness. The maximum height or thickness of a mar-
quee measured vertically from its lowest to its highest point
shall not exceed 3 feet (914 mm) where the marquee projects
more than two-thirds of the distance from the property line to
the curb line, and shall not exceed 9 feet (2743 mm) where the
marquee is less than two-thirds of the distance from the prop-
erty line to the curb line.
' constraction. Where the roof or any part thereof
is a skylight, the skylight shall comply with the requirements of
Chapter 24. Every roof and skylight of a marquee shall be
sloped to downspouts that shall conduct any drainage from the
marquee in such a manner so as not to spill over the sidewalk.
Every marquee shall be so
located as not to interfere with the operation of any exterior
standpipe, and such that the marquee does not obstruct the clear
passage of stairways or exit discharge from the building or the
installation or maintenance of street lighting.
5.5 Constractnon. A marquee shall be supported entirely
from the building and constructed of noncombustible materi-
als. Marquees shall be designed as required in Chapter 16.
Structural members shall be protected to prevent deterioration.
31((I>7.1 General. Signs shall be designed, constructed and
maintained in accordance with this code.
SECT1OES13108
RADIO AMD TELEVISION TOWERS
D8.1 General. Subject to the provisions of Chapter 16 and
the requirements of Chapter 15 governing the fire-resistance
ratings of buildings for the support of roof structures, radio and
television towers shall be designed and constructed as herein
provided.
3108.2 Location and access. Towers shall be located and
equipped with step bolts and ladders so as to provide ready
access for inspection purposes. Guy wires or other accessories
shall not cross or encroach upon any street or other public
space, or over above-ground electric utility lines, or encroach
upon any privately owned property without written consent of
the owner of the encroached-upon property, space or
above-ground electric utility lines.
3108.3 Construction. Towers shall be constructed of approved
corrosion-resistant noncombustible material. The -minimum
type of construction of isolated radio towers not more than 100
feet (30 480 mm) in height shall be Type EB.
3108.4 Loads. Towers shall be designed to resist wind loads in
accordance with TIA/EIA-222. Consideration shall be given to
conditions involving wind load on ice-covered sections in
localities subject to sustained freezing temperatures.
3108.4.1 Dead load. Towers shall be designed for the dead
load plus the ice load in regions where ice formation occurs.
3108.4.2 Wind load. Adequate foundations and anchorage
shall be provided to resist two times the calculated wind load.
3108.5 Gronnding. Towers shall be permanently and effec-
tively grounded.
SECTION 3109
SWIMMING POOL ENCLOSURES
SAFETY DE^
.1 General. Swimming pools shall comply with the
requirements of this section and other applicable sections of
this code.
3109.2 Definition. The following word and term shall, for the
purposes of this section and as used elsewhere in this code,
have the meaning shown herein.
SWIMMING POOLS. Any structure intended for swimming,
recreational bathing or wading that contains water over 24 inches
(610 mm) deep. This includes in-ground, above-ground and
on-ground pools; hot tubs; spas and fixed-in-place wading pools.
3109.3 Public swimming pools. Public swimming pools shall
be completely enclosed by a fence or screen enclosure at least 5
feet (1524 mm) in height. Openings in the fence or screen
enclosure shall not permit the passage of a 4-inch-diameter
(102 nmi) sphere. The fence or screen enclosure shall be
equipped with self-closing and self-latching gates.
3109.4 Residential swimming pools. Residential swincmiing
pools on a lot with one to three dwelling units shall comply
with Section 3109.4.1 and Sections 3109.4.1.1 through
3109.4.4.7.
Exception: A swimming pool with a power safety cover or
a spa with a safety cover complying with ASTM F 1346.
3109.4.1 Barrier height and clearances. For residential
swimming pools, the top of the barrier shall be at least 60
inches (1524 mm) above grade measured on the side of the
barrier that faces away from the swimming pool. The maxi-
mum vertical clearance between grade and the bottom of the
barrier shall be 2 inches (5 1 mm) measured on the side of the
barrier that faces away from the swimming pool. Where the
top of the pool structure is above grade, the barrier is permit-
ted to be mounted on top of the pool structure, provided the
maximum vertical clearance between the top of the pool
structure and the bottom of the barrier shall be 4 inches (102
mm), or at grade level.
3109.4.1.1 Openings. Openings in the barrier shall not
allow passage of a 4-inch-diameter (102 mm) sphere.
3109.4.1.2 Solid harrier surfaces. Solid barriers which
do not have openings shall not contain indentations or
m
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2008 CITY OF LOS AhSGELES BUILDING CODE
SPECIAL CONSTRUCTION
Authority: Health and Safety Code Section
18942(b)
Reference: Health and Safety Code Section
115926
Ab 3305, Statutes 1996, C.925
3109.4.4. 7 Modification and interpretation of division.
Notwithstanding any other provision of law, this article
shall not be subject to further modification or interpreta-
tion by any regulatory agency of the state, this authority
being reserved exclusively to local jurisdictions, as pro-
vided for in Item 5 of Section 3109.4.4.2 and Item 3 of
Section 3109.4.4.5.
Authority: Health and Safety Code Section 18942(b)
Reference: Health and Safety Code Section 115927
Ab 3305, Statutes 1996, C.925
J.5 Entrapment avoidance. Suction outlets shall be
designed to produce circulation throughout the pool or spa.
Single-outlet systems, such as automatic vacuum cleaner sys-
tems, or other such multiple suction outlets whether isolated by
valves or otherwise shall be protected against user entrapment.
3109.5.1 Suction fittings. All pool and spa suction outlets
shall be provided with a cover that conforms to ASME
A112.19.8M, a 12-inch by 12-inch (305 mm by 305 mm)
drain grate or larger, or an approved channel drain system.
Exception: Surface skimmers.
3109.5.2 Atmospheric vacuum relief system required.
All pool and spa single- or multiple-outlet circulation sys-
tems shall be equipped with an atmospheric vacuum relief
should grate covers located therein become missing or bro-
ken. Such vacuum relief systems shall include at least one
approved or engineered method of the type specified herein,
as follows:
1 . Safety vacuum release systems conforming to ASME
Al 12.19.17; or
2. Approved gravity drainage system.
3109.5.3 Dual drain separation. Single- or multiple-pump
circulation systems shall be provided with a minimum of
two suction outlets of the approved type. A minimum hori-
zontal or vertical distance of 3 feet (914 mm) shall separate
such outlets. These suction outlets shall be piped so that
water is drawn through them simultaneously through a vac-
uum-relief-protected line to the pump or pumps.
3109.5.4 Pool cleaner fittings. Where provided, vacuum or
pressure cleaner fitting(s) shall be located in an accessible
position(s) at least 6 inches (152 mm) and not greater than
12 inches (305 mm) below the minimum operational water
level or as an attachment to the skimmer(s).
approved translucent or transparent plastic not more that 0. 125
inch (3.2 mm) in thickness, glass conforming to the provisions
of Chapter 24 or any combination of the forenamed.
3110.2 Definitions. The following word and term shall, for the
purposes of this appendix, have the meaning shown herein.
PATIO COVERS. One story structures not exceeding 12 feet
(3657 mm) in height. Enclosure walls shall be permitted to be
of any configuration, provided the open or glazed area of the
longer wall and one additional wall is equal to at least 65 per-
cent of the area below a minimum of 6 feet 8 inches (2032 mm)
of each wall (measured from the floor).
3110.3 Exterior openings. Exterior openings required for
light and ventilation shall be permitted to open into a patio
structure. However, the patio structure shall be unenclosed if
such openings are serving as emergency egress or rescue open-
ings from sleeping rooms. Where such exterior openings serve
as an exit from the dwelling unit, the patio structure, unless
unenclosed, shall be provided with exits conforming to the pro-
vision of Chapter 10.
3110.4 Structural provisions. Patio covers shall be designed
and constructed to sustain, within the stress limits of this code,
all dead loads plus a minimum vertical live load of 10 pounds
per square foot (0.48 kN/m^) except that snow loads shall be
used where such snow loads exceed this minimum. Such patio
covers shall be designed to resist the minimum wind and seis-
mic loads set forth in this code.
3110.4.1 Footings. In areas with a frost depth of zero, a
patio cover shall be permitted to be supported on a concrete
slab on grade without footings, provided the slab conforms
to the provisions of Chapter 19 of this code, is not less than
372 inches (89 nun) thick and further provided that the col-
umns do not support loads in excess of 750 pounds (3.36
kN) per column.
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SECTION 3110
PATIO COVERS
3110.1 General. Patio covers shall be permitted to be detached
from or attached to dwelling units. Patio covers shall be used
only for recreational, outdoor living purposes and not as car-
ports, garages, storage rooms or habitable rooms. Openings
shall be permitted to be enclosed with insect screening,
2008 CITY OF LOS ANGELES BUILDING CODE
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428 2008 CITY OF LOS ANGELES BUILDING CODE
CHAPTER 32
PROJECTIONS FROM BUILDINGS AND CONSTRUCTION
IN THE PUBLIC RIGHT-OF-WAY
LA
LA
LA
LA
^Bi-
section 3201
GENERAL
[-^ 3201.1 Scope. The provisions of this Chapter shall govern the
LA encroachment of structures into the public right-of-way.
LA
LA No portion of any projection from any building over any
A roadway shall be lower than an elevation of 14 feet (4267 mm)
LA above the roadway surface.
3201.2 Measurement. The projection of any structure or por-
tion thereof shall be the distance measured horizontally from
the lot line to the outermost point of the projection.
LA 3201.3 Other laws. The provisions of this Chapter shall not be
LA construed to permit the violation of other laws or ordinances
LA regulating the use and occupancy of public property.
[^ Projections into the public right-of-way shall require the
LA approval of the Department of Public Works.
3201.4 Drainage. Drainage water collected from a roof, awn-
ing, canopy or marquee, and condensate from mechanical
equipment shall not flow over a public walking surface.
SECTION 3202
ENCROACHMENTS
3202.1 Encroachments below grade. Encroachments below
grade shall comply with Sections 3202.1.1 through 3202.1.3.
3202.1.1 Structural support. A part of a building erected
below grade that is necessary for structural support of the
building or structure shall not project beyond the lot lines,
except that the footings of street walls or their supports
which are located at least 8 feet (2438 mm) below grade
shall not project more than 12 inches (305 mm) beyond the
street lot line.
3202.1.2 Vaults and other enclosed spaces. The construc-
tion and utilization of vaults and other enclosed space below
grade shall be subject to the terms and conditions of the
authority or legislative body having jurisdiction.
3202.1.3 Areaways. Areaways shall be protected by grates,
guards or other approved means.
3202.2 Encroachments above grade and below 8 feet in
height. Encroachments into the public right-of-way above
grade and below 8 feet (2438 mm) in height shall be prohibited
except as provided for in Sections 3202.2.1 through 3202.2.3.
Doors and windows shall not open or project into the public
right-of-way.
3202.2.1 Steps. Steps shall not project more than 12 inches
(305 mm) and shall be guarded by approved devices not less
than 3 feet!(914 mm) high, or shall be located between col-
umns or pilasters.
3202.2.2 Architectural features. Columns or pilasters,
including bases and moldings shall not project more than 12
inches (305 mm). Belt courses, Hntels, sills, architraves,
pediments and similar architectural features shall not pro-
ject more than 4 inches (102 mm).
3202.2.3 Awnings. The vertical clearance from the public
right-of-way to the lowest part of any awning, including
valances, shall be 7 feet (2134 mm) minimum.
3202.3 Encroachments 8 feet or more above grade.
Encroachments 8 feet (2438 mm) or more above grade shall
comply with Sections 3202.3.1 through 3202.3.4.
3202.3.1 Awnings, canopies, marquees and signs. Awn-
ings, canopies, marquees and signs shall be constructed so
as to support applicable loads as specified in Chapter 16.
Awnings, canopies, marquees and signs with less than 15
feet (4572 mm) clearance above the sidewalk shall not
extend into or occupy more than two-thirds the width of the
sidewalk measured from the building. Stanchions or col-
umns that support awnings, canopies, marquees and signs
shall be located not less than 2 feet (610 mm) in from the
curb line.
3202.3.2 Windows, balconies, architectural features and
mechanical equipment. Where the vertical clearance
above grade to projecting windows, balconies, architectural
features or mechanical equipment is more than 8 feet (2438
mm), 1 inch (25 mm) of encroachment is permitted for each
additional 1 inch (25 mm) of clearance above 8 feet (2438
mm), but the maximum encroachment shall be 4 feet (1219
mm).
3202.3.3 Encroachments 15 feet or more above grade.
Encroachments 15 feet (4572 mm) or more above grade
shall not be limited.
3202.3.4 Pedestrian walkways. The installation of a
pedestrian walkway over a public right-of-way shall be sub-
ject to the approval of local authority having jurisdiction.
The vertical clearance from the public right-of-way to the
lowest part of a pedestrian walkway shall be 15 feet (4572
nam) minimum.
3202.4 Temporary encroachments. Where allowed by the
local authority having jurisdiction, vestibules and storm enclo-
sures shall not be erected for a period of time exceeding 7
months in any one year and shall not encroach more than 3 feet
(914 mm) nor more than one-fourth of the width of the side-
walk beyond the street lot line. Temporary entrance awnings
shall be erected with a minimum clearance of 7 feet (2134 mm)
to the lowest portion of the hood or awning where supported on
removable steel or other approved noncombustible support.
3203.1 Awnings, canopies, marquees and signs. Awnings, la
canopies, marquees and signs shall be constructed so as to sup- \_f^
port applicable loads as specified in Chapter 16 of this Code, la
2008 CITY OF LOS ANGELES BUILDING CODE
527R
PROJECTDONS FROM BUILDINGS AND CONSTRUCTION IN THE PUBLIC RIGHT-OF-WAY
{^ Awnings, canopies, marquees and signs with less than 15 feet
LA (4572 mm) clearance above the sidewalk shall not extend into
L^ or occupy more than two-thirds the width of the sidewalk mea-
LA sured from the building. Stanchions or columns that support
LA awnings, canopies, marquees and signs shall be located not less
LA than 2 feet (610 mm) in from the curb line.
LA ^ ^
LA Plans and specifications and the type, design, arrangement
LA and location of every marquee shall be approved by the Board
!-^ of Cultural Affairs Commissioners of the City of Los Angeles
LA and the Board of Public Works prior to the issuance of a build-
[^^ ing permit.
528R 2008 CITY OF LOS ANGELES BUILDING CODE
CHAPTER 33
SITE WORK DEMOLITION AND CONSTRUCTION
LA
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SECTION 3301
GENERAL
3301.1 Scope. The provisions of this Chapter shall govern
safety during construction and the protection of adjacent public
and private properties.
This section shall not be construed to waive the requirements
of the General Safety Orders of the Department of Industrial
Relations of the State of California, nor the provisions of Sec-
tion 832 of the Civil Code of California concerning the rights of
coterminous owners as to excavations.
See Chapter 70 of this Code for all grading, excavation and
fill requirements.
3301.2 Storage and placement. Construction equipment and
materials shall be stored and placed so as not to endanger the
public, the workers or adjoining property for the duration of the
construction project.
SECTION 3302
CONSTRUCTION SAFEGUARDS
3302.1 Remodeling and additions. Required exits, existing
structural elements, fire protection devices and sanitary safe-
guards shall be maintained at all times during remodeling,
alterations, repairs or additions to any building or structure.
Exceptions:
1. When such required elements or devices are being
remodeled, altered or repaired, adequate substitute
provisions shall be made.
2. When the existing building is not occupied.
3302.2 Manner of removal. Waste materials shall be removed
in a manner which prevents injury or damage to persons,
adjoining properties and public rights-of-way.
SECTION 3303
DEMOLITION
3303.1 Construction documents. Construction documents
and a schedule for demolition must be submitted when
required by the building official. Where such information is
required, no work shall be done until such construction docu-
ments or schedule, or both, are approved.
3303.2 Pedestrian protection. The work of demolishing any
building shall not be commenced until pedestrian protection is
in place as required by this chapter.
3303.3 Means of egress. A party wall balcony or horizontal
exit shall not be destroyed unless and until a substitute means of
egress has been provided and approved.
3303.4 Vacant lot. Where a structure has been demolished or
removed, the vacant lot shall be filled and maintained to the
existing grade or in accordance with the ordinances of the juris-
diction having authority.
3303.5 Water accumulation. Provision shall be made to pre-
vent the accumulation of water or damage to any foundations
on the premises or the adjoining property.
3303.6 Utility connections. Service utility connections shall
be discontinued and capped in accordance with the approved
rules and the requirements of the authority having jurisdiction.
SECTION 3304
SITE WORK
3304.1 Excavation and fill. Excavation and fill for buildings
and structures shall be constructed or protected so as not to
endanger life or property. Stumps and roots shall be removed
from the soil to a depth of at least 1 2 inches (305 mm) below the
surface of the ground in the area to be occupied by the building.
Wood forms which have been used in placing concrete, if within
the ground or between foundation sills and the ground, shall be
removed before a building is occupied or used for any purpose.
Before completion, loose or casual wood shall be removed from
direct contact with the ground under the building.
3304.1.1 Slope limits. Slopes for permanent fill shall not be
steeper than one unit vertical in two units horizontal
(50-percent slope). Cut slopes for permanent excavations
shall not be steeper than one unit vertical in two units hori-
zontal (50-percent slope). Deviation from the foregoing
limitations for cut slopes shall be permitted only upon the
presentation of a soil investigation report acceptable to the
building official.
3304.1.2 Surchai^e. No fill or other surcharge loads shall be la
placed adjacent to any building or structure unless the build- la
ing or structure is capable of withstanding the additional [-^
loads caused by the fill or surcharge. Existing footings or la
foundations, which can be affected by any excavation, shall [-^
be underpinned adequately or otherwise protected against la
settlement and shall be protected against lateral movement. [^^
3304.1.3 Footings on adjacent slopes. For footings on
adjacent slopes, see Chapter 18.
3304.1.4 Fill supporting foundations. Fill to be used to
support the foundations of any building or structure shall
comply with Section 1803.5 and Chapter 70 of this Code.
Special inspections of compacted fill shall be in accordance
with Section 1704.7 of this Code.
SECTION 3305
TOILET FACILITIES DURING CONSTRUCTION
3305.1 Toilet facilities required. No person shall commence
or proceed with the erection, construction, alteration, repair,
raising, adding to, removal or demolition of any building or
structure unless adequate, suitable, sanitary toilet facilities,
under the control of that person, are provided for the use of any
person employed or working upon the building or structure.
The toilet facilities shall be located upon or within a reasonable
2008 CITY OF LOS ANGELES BUILDING CODE
531 R
SITE WORK DEMOUTION AND CONSTRUCTION
[^ distance of the lot, premises, or site upon which the work is
LA being done. In no case shall the line of travel to any toilet facil-
[^ ity exceed 500 feet (152 400 mm).
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LA flush type and connected to a public sewer or a private sewage
L^ disposal system built in accordance with the provisions of the
LA Plumbing Code. All toilet structures shall be completely
L^ enclosed on four sides and the top, and the door shall be
LA self-closing. The toilet floor shall be smooth, and screened ven-
L^ tilation shall be provided for the toilet compartment. Where
LA workers are employed during the night hours, the toilet build-
LA ing shall be provided with artificial light. In lieu of flush water
•-A closets, approved chemical toilets, which meet the require-
LA ments of Chapter III of the Los Angeles Municipal Code, may
^A be provided.
SECTION 3306
OF PEDESTRIAN?
LA 33(0)6.1 ProtectioH required. Pedestrians shall be protected
LA during construction, remodeling and demolition activities as
Yl required by this Chapter and Table 3306.1. Signs shall be pro-
LA vided to direct pedestrian traffic.
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LA Nothing contained in this section shall be construed to grant
LA permission to use, construct or place a canopy over any street or
LA public place without first obtaining the necessary permits from
LA the Department of Public Works.
3306.2 Walkways. A walkway shall be provided for pedes-
trian travel in front of every construction and demolition site
unless the authority having jurisdiction authorizes the sidewalk
to be fenced or closed. Walkways shall be of sufficient width to
accommodate the pedestrian traffic, but in no case shall they be
less than 4 feet (1219 mm) in width. Walkways shall be pro-
vided with a durable walking surface. Walkways shall be
accessible in accordance with Chapter 11 A orllB and shall be
designed to support all imposed loads and in no case shall the
design live load be less than 150 pounds per square foot (psf)
(7.2 kN/m2).
3306.3 Birectional barricades. Pedestrian traffic shall be pro-
tected by a directional barricade where the walkway extends
into the street. The directional barricade shall be of sufficient
size and construction to direct vehicular traffic away from the
pedestrian path.
3306.4 Construction railings. Construction railings shall be
at least 42 inches (1067 mm) in height and shall be sufficient to
direct pedestrians around construction areas.
3306.5 Barriers. Barriers shall be a minimum of 8 feet (2438
mm) in height and shall be placed on the side of the walkway
nearest the construction. Barriers shall extend the entire length
of the construction site. Openings in such barriers shall be pro-
tected by doors which are normally kept closed.
3306.6 Barrier design. Barriers shall be designed to resist
loads required in Chapter 16 unless constructed as follows:
1 . Barriers shall be provided with 2-inch by 4-inch (5 1 mm
by 102 mm) top and bottom plates.
2. The barrier material shall be a minimum of ^-inch (19. 1
mm) boards or 74 -inch (6.4 mm) wood structural use pan-
els.
3. Wood structural use panels shall be bonded with an adhe-
sive identical to that for exterior wood structural use panels.
4. Wood structural use panels 74 inch (6.4 mm) or V,6 inch
(23.8 mm) in thickness shall have studs spaced not more
than 2 feet (610 mm) on center (o.c).
5. Wood structural use panels Vg inch (9.5 mm) or 72 inch
(12.7 mm) in thickness shall have studs spaced not more
than 4 feet (1219 mm) o.c, provided a 2-inch by 4-inch
(51 mm by 102 mm) stiff ener is placed horizontally at
midheight where the stud spacing exceeds 2 feet (610
mm) o.c.
6. Wood structural use panels % inch (15.9 imn) or thicker
shall not span over 8 feet (2438 mm).
3306.7 Covered walkways. Covered walkways shall have a
minimum clear height of 8 feet (2438 mm) as measured from the
floor surface to the canopy overhead. Adequate lighting shall be
provided at all times. Covered walkways shall be designed to
support all imposed loads. In no case shall the design hve load be
less than 150 psf (7.2 kN/m^) for the entire structure.
Exception: Roofs and supporting structures of covered walk-
ways for new, light-frame construction not exceeding two sto-
ries in height are permitted to be designed for a live load of 75
psf (3.6 kN/m^) or the loads imposed on them, whichever is
greater. In lieu of such designs, the roof and supporting struc-
ture of a covered walkway are permitted to be constructed as
follows:
1 . Footings shall be continuous 2-inch by 6-inch (5 1 mm by
152 mm) members.
TABLE 3306.1
PROTECTION OF PEDESTRIANS
HEIGHT OF
CONSTRUCTION
DISTANCE FROM CONSTRUCTION TO LOT LINE
TYPE OF PROTECTION REQUIRED
8 feet or less
Less than 5 feet
Construction railings
5 feet or more
None
More than 8 feet
Less than 5 feet
Barrier and covered walkway
5 feet or more, but not more than one-fourth the height of construction
Barrier and covered walkway
5 feet or more, but between one-fourth and one-half the height of construction
Barrier
5 feet or more, but exceeding one-half the height of construction
None
For SI: 1 foot = 304.8 mm.
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2. Posts not less than 4 inches by 6 inches (102 mm by 152
mm) shall be provided on both sides of the roof and
spaced not more than 12 feet (3658 mm) o.c.
3. Stringers not less than 4 inches by 12 inches (102 mm by
305 mm) shall be placed on edge upon the posts.
4. Joists resting on the stringers shall be at least 2 inches by
8 inches (5 1 mm by 203 mm) and shall be spaced not
more than 2 feet (610 mm) o.c.
5. The deck shall be planks at least 2 inches (51 mm) thick
or wood structural panels with an exterior exposure dura-
bility classification at least ^^32 inch (18.3 mm) thick
nailed to the joists.
6. Each post shall be knee braced to joists and stringers by
2-inch by 4-inch (51 mm by 102 mm) minimum mem-
bers 4 feet (1219 mm) long.
7. A 2-inch by 4-inch (5 1 mm by 102 mm) minimum curb
shall be set on edge along the outside edge of the deck.
3306.8 Repair, maintenance and removal. Pedestrian protec-
tion required by this chapter shall be maintained in place and kept
in good order for the entire length of time pedestrians may be
endangered. The owner or the owner's agent, upon the completion
of the construction activity, shaU immediately remove walkways,
debris and other obstructions and leave such public property in as
good a condition as it was before such work was commenced.
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3 Adjacent to excavations. Every excavation on a site
located 5 feet (1524 mm) or less from the street lot line shall be
enclosed with a barrier not less than 6 feet (1829 mm) high.
Where located more than 5 feet (1524 mm) from the street lot
line, a barrier shall be erected when required by the building
official. Barriers shall be of adequate strength to resist wind
pressure as specified in Chapter 16.
SECTION 3307
PROTECTION OF ADJOINING PROPERTY
.1 Protection required. Adjoining public and private
property shall be protected from damage during construction,
remodeling and demolition work. Protection must be provided
for footings, foundations, party walls, chimneys, skylights and
roofs. Provisions shall be made to control water runoff and ero-
sion during construction or demolition activities.
For excavations, adjacent property shall be protected as set
forth in Section 832 of the Civil Code of California.
Prior to the issuance of any permit, which authorizes an
excavation where the excavation is to be of a greater depth than
are the walls or foundation of any adjoining building or struc-
ture and located closer to the property line than the depth of the
excavation, the owner of the site shall provide the Department
of Building and Safety with evidence that the adjacent property
owner or owners have been given a 30-day written notice of the
intent to excavate. This notice shall state the depth to which the
excavation is intended to be made and when the excavation will
commence. This notice shall be by certified mail with return
receipt requested.
3307.2 Underpinning.
3307.2.1 General. In constructing underpinning, all por-
tions of the structure shall be supported so that no structural
material is stressed beyond the yield point.
3307.2.2 Closure. All spaces between the existing footing
and the underpinning shall be packed full of mortar con-
forming to the provisions of Section 2103 of this Code and
having no slump when tested by the method specified in
ASTM C 143.
3307.3 Temporary excavations and shoring.
3307.3.1 General. Excavations shall not remove the lateral
support from a public way, from an adjacent property or
from an existing structure. For the purpose of this section,
the lateral support shall be considered to have been removed
when any of the following conditions exist:
1. The excavation exposes any adverse geological for-
mations, which would affect the lateral support of a
public way, an adjacent property or an adjacent struc-
ture.
2. The excavation extends below a plane extending
downward at an angle of 45 degrees from the edge of
the public way or an adjacent property.
Exception: Normal footing excavations not
exceeding 2 feet (610 mm) in depth will not be
construed as removing lateral support.
3. The excavation extends below a plane extending
downward at an angle of 45 degrees from the bottom
of a footing of an existing structure.
3307.3.2 Removal of lateral support. Approval of the
Department of Public Works shall be obtained prior to the
issuance of a permit for any excavation that would remove
the lateral support from a public way.
The slopes of excavations adjacent to an existing struc-
ture, an adjacent property or public way may exceed one
horizontal to one vertical where either:
1. A soil report recommending that the slope may be in
excess of one to one has been approved by the Depart-
ment and the Department of Public Works when the
excavation is adjacent to a public way.
When justified by the soils engineer, the Depart-
ment may approve the use of the proposed building
and/or shoring to support an adjacent structure on an
adjoining property in lieu of underpinning, provided:
(i) Evidence i s submitted that the adj oining prop-
erty owner has been notified in advance of the
proposed excavation in compliance with Sec-
tion 832 of the Civil Code of California.
(ii) The owner of the site records a sworn affidavit
with the Office of the County Recorder, which
will inform future owners of the site that the lat-
eral support of a portion of the building footings
on the adjoining property is provided by the
subterranean walls of the building on the site.
2. Underpinning is designed to support adjacent struc-
tures, temporary shoring is designed to support the
excavation, and plans are approved and permits are
issued by the Department.
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2008 CITY OF LOS ANGELES BUILDING CODE
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Temporary shoring shall be designed for an earth
pressure equivalent to that exerted by a fluid weigh-
ing not less than 30 pounds per cubic foot plus all sur-
charge loads or as recommended by a soils engineer
and approved by the Department.
Soils bearing values shall be those specified in
Chapter 18 of this Code or those recommended by a
soils engineer and approved by the Department.
The design of the required temporary shoring and
necessary underpinning shall include a sequence of
construction and installation.
Allowable stresses used in the design of temporary
shoring may be increased 33V3 percent for structural
and reinforcing steel and 25 percent for wood. No
increase will be permitted for concrete. Other values
shall be those prescribed by the Code.
SECTION 3308
TEMPORARY USE OF STREETS, ALLEYS AND
PUBLIC PROPERTY
Storage and handling of materials. The temporary
use of streets or public property for the storage or handling of
materials or of equipment required for construction or demoli-
tion, and the protection provided to the public shall comply
with the provisions of the authority having jurisdiction and this
chapter.
3308.1.1 Obstructions. Construction materials and equip-
ment shall not be placed or stored so as to obstruct access to
fire hydrants, standpipes, fire or police alarm boxes, catch
basins or manholes, nor shall such material or equipment be
located within 20 feet (6096 mm) of a street intersection, or
placed so as to obstruct normal observations of traffic sig-
nals or to hinder the use of public transit loading platforms.
33(0i8.2 Utility fixteres. Building materials, fences, sheds or any
obstruction of any kind shall not be placed so as to obstruct free
approach to any fire hydrant, fire department connection, utility
pole, manhole, fire alarm box or catch basin, or so as to interfere
with the passage of water in the gutter. Protection against dam-
age shall be provided to such utility fixtures during the progress
of the work, but sight of them shall not be obstructed.
SECTION 3309
FIRE EXTINGUISHERS
[F] 3309.1 Where required. All structures under construction,
alteration or demolition shall be provided with not less than one
approved portable fire extinguisher in accordance with Section
906 and sized for not less than ordinary hazard as follows:
1. At each stairway on all floor levels where combustible
materials have accumulated.
2. In every storage and construction shed.
3. Additional portable fire extinguishers shall be provided
where special hazards exist, such as the storage and use
of flammable and combustible liquids.
3309,2 Fire hazards. The provisions of this code and the Cali-
fornia Fire Code shall be strictly observed to safeguard against
all fire hazards attendant upon construction operations.
SECTION 3310
EXITS
3310.1 Stairways required. Where a building has been con-
structed to a height greater than 50 feet (15 240 mm) or four
stories, or where an existing building exceeding 50 feet ( 1 5 240
mm) in height is altered, at least one temporary lighted stairway
shall be provided unless one or more of the permanent stair-
ways are erected as the construction progresses.
3310.2 Maintenance of exits. Required means of egress shall
be maintained at all times during construction, demolition,
remodeling or alterations and additions to any building.
Exception: Approved temporary means of egress systems
and facilities.
[F] SECTION 3311
STANDPIPES
3311.1 Where required. Buildings four stories or more in
height shall be provided with not less than one standpipe for
use during construction. Such standpipes shall be installed
where the progress of construction is not more than 40 feet (12
192 mm) in height above the lowest level of fire department
access. Such standpipe shall be provided with fire department
hose connections at accessible locations adjacent to usable
stairs. Such standpipes shall be extended as construction pro-
gresses to within one floor of the highest point of construction
having secured decking or flooring.
3311.2 Buildings being demolished. Where a building is being
demolished and a standpipe exists within such a building, such
standpipe shall be maintained in an operable condition so as to
be available for use by the fire department. Such standpipe shall
be demoUshed with the building but shall not be demolished
more than one floor below the floor being demolished.
3311.3 Detailed requirements. Standpipes shall be installed
in accordance with the provisions of Chapter 9.
Exception: Standpipes shall be either temporary or perma-
nent in nature, and with or without a water supply, provided
that such standpipes conform to the requirements of Section
905 as to capacity, outlets and materials.
3311.4 Water supply. Water supply for fire protection, either
temporary or permanent, shall be made available as soon as
combustible material accumulates.
SECTION 3312
AUTOMATIC SPRINKLER SYSTEM
[F] 3312.1 Completion before occupancy. In buildings where
an automatic sprinkler system is required by this code, it shall
be unlawful to occupy any portion of a building or structure
until the automatic sprinkler system installation has been tested
and approved, except as provided in Section 110.3.
[F] 3312.2 Operation of valves. Operation of sprinkler control
valves shall be permitted only by properly authorized personnel
and shall be accompanied by notification of duly designated par-
ties. When the sprinkler protection is being regularly turned off
and on to facilitate connection of newly completed segments, the
sprinkler control valves shall be checked at the end of each work
period to ascertain that protection is in service.
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2008 CITY OF LOS ANGELES BUILDING CODE
CHAPTER 34
EXISTING STRUCTURES
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SECTION 3401
GENERAL
3401.1 Scope. In addition of the requirements of Chapter 34 of
this Code, existing buildings and structures shall comply with
the applicable regulations of Chapters 81, 82, 83, 84, 85, 86,
88, 89 and 91 of this Code and the voluntary earthquake hazard
reduction standards of Chapters 92, 93, 94, 95 and 96 of this
Code.
Alteration, repair or additions to existing bleachers, grand-
' stands and folding and telescopic seating shall comply with
: ICC 300-02.
3401.1.1 Existing state-owned structures. The provisions
of Sections 3415 through 3420 establish minimum stan-
dards for earthquake evaluation and design for retrofit of
existing state-owned structures, including buildings owned
by the University of California and the California State Uni-
versity.
The provisions of Sections 3415 through 3420 may be
adopted by a local jurisdiction for earthquake evaluation
and design for retrofit of existing buildings.
3401.1.2 Public school buildings. [DSA-SS] The provi-
sions of Sections 3415 through 3421 establish minimum
standards for earthquake evaluation and design for the
rehabilitation of existing buildings for use as public school
buildings under the jurisdiction of the Division of the State
Architect — Structural Safety (DSA-SS, refer to Section
109.2).
The provisions of Section 3415 through 3421 also estab-
lish minimum standards for earthquake evaluation and
design for rehabilitation of existing public school buildings
under the jurisdiction of DSA-SS.
3401.2 Maintenance. Buildings and structures, and parts
thereof, shall be maintained in a safe and sanitary condition.
Devices or safeguards which are required by this code shall
be maintained in conformance with the code edition under
which installed. The owner or the owner's designated agent
shall be responsible for the maintenance of buildings and
structures. To determine compliance with this subsection,
the building official shall have the authority to require a
building or structure to be reinspected. The requirements of
this chapter shall not provide the basis for removal or abro-
gation of fire protection and safety systems and devices in
existing structures.
LA 3401.3 Compliance. Where there are different require-
LA ments in this Code, the most restrictive requirement shall
govern. Where there is a conflict between a general require- "-A
ment and a specific requirement, the specific requirement la
shall be applicable. ^^
3401.4 Existing Group R-3 occupancies. [SFM] For smoke
alarm requirements in existing buildings, see Section
907.2.10.5.
SECTION 3402
DEFINITIONS
3402.1 Definitions. The following term shall, for the purposes
of this chapter and as used elsewhere in the code, have the fol-
lowing meaning:
PRIMARY FUNCTION. A primary function is a major activ-
ity for which the facility is intended. Areas that contain a pri-
mary function include, but are not limited to, the customer
service lobby of a bank, the dining area of a cafeteria, the meet-
ing rooms in a conference center, as well as offices and other
work areas in which the activities of the public accommodation
or other private entity using the facility are carried out.
Mechanical rooms, boiler rooms, supply storage rooms,
employee lounges or locker rooms, janitorial closets,
entrances, corridors and restrooms are not areas containing a
primary function. .
TECHNICALLY INFEASIBLE. An alteration of a building
or a facility that has little likelihood of being accomplished
because the existing structural conditions require the removal
or alteration of a load-bearing member that is an essential part
of the structural frame, or because other existing physical or
site constraints prohibit modification or addition of elements,
spaces or features which are in full and strict compliance with
the minimum requirements for new construction and which are
necessary to provide accessibility.
SECTION 3403
ADDITIONS, ALTERATIONS OR REPAIRS
3403.1 Existing buildings or structures. Additions or alter-
ations to any building or structure shall comply with the
requirements of the code for new construction. Additions or
alterations shall not be made to an existing building or structure
that will cause the existing building or structure to be in viola-
tion of any provisions of this code. An existing building plus
additions shall comply with the height and area provisions of
Chapter 5. Portions of the structure not altered and not affected
2008 CITY OF LOS ANGELES BUILDING CODE
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EXISTING STRUCTURES
by the alteration are not required to comply with the code
requirements for a new structure.
Exceptions: [HCD 1]
1. Limited-density owner-built rural dwellings.
2. Local ordinances or regulations shall permit the re-
placement, retention and extension of original mate-
rials, and the use of original methods of construction,
for any building or accessory structure, provided such
building or structure complied with the building code
provisions in effect at the time of original construction
and the building or accessory structure does not be-
come or continue to be a substandard building. For
additional information, see Health and Safety Code
Sections 17912, 17920.3, 17922(d), 17922.3,
17958.8 and 17958.9.
3403.1.1 Flood hazard areas. For buildings and structures
in flood hazard areas estabhshed in Section 1612.3, any
additions, alterations or repairs that constitute substantial
improvement of the existing structure, as defined in Section
1612.2, shall comply with the flood design requirements for
new construction, and all aspects of the existing structure
shall be brought into compliance with the requirements for
new construction for flood design.
3403.2 Structural. Additions or alterations to an existing
structure shall not increase the force in any structural element
by more than 5 percent, unless the increased forces on the ele-
ment are still in compliance with the code for new structures,
nor shall the strength of any structural element be decreased to
less than that required by this code for new structures. Where
repairs are made to structural elements of an existing building,
and uncovered structural elements are found to be unsound or
otherwise structurally deficient, such elements shall be made to
conform to the requirements for new structures.
Exception: For state-owned buildings, including those
owned by the University of California and the California
State University, the requirements of Section 3403.2 are
replaced by the requirements of Sections 3415 through
3420.
3403.2.1 Existing live load. Where an existing structure
heretofore is altered or repaired, the minimum design loads
for the structure shall be the loads applicable at the time of
erection, provided that public safety is not endangered
thereby.
3403.2.2 Live load reduction. If the approved live load is
less than required by Section 1607, the areas designed for
the reduced live load shall be posted in with the approved
load. Placards shall be of an approved design.
3403.2.3 Seismic. Additions, alterations or modification or
change of occupancy of existing buildings shall be in accor-
dance with this section for the purposes of seismic consider-
ations.
3403.2.3.1 Additions to existing buildings. An addition
that is structurally independent from an existing struc-
ture shall be designed and constructed with the seismic
requirements for new structures. An addition that is not
structurally independent from an existing structure shall
be designed and constructed such that the entire structure
conforms to the seismic-force-resistance requirements
for new structures unless the following conditions are
satisfied:
1 . The addition conforms with the requirements for
new structures,
2. The addition does not increase the seismic forces
in any structural element of the existing structure
by more than 10 percent cumulative since the orig-
inal construction, unless the element has the ca-
pacity to resist the increased forces determined in
accordance with ASCE 7, and
3. Additions do not decrease the seismic resistance of
any structural element of the existing structure by
more than 10 percent cumulative since the original
construction, unless the element has the capacity
to resist the forces determined in accordance with
ASCE 7. If the building's seismic base shear ca-
pacity has been increased since the original con-
struction, the percent change in base shear may be
calculated relative to the increased value.
3403.2.3.2 Alterations. Alterations are permitted to be
made to any structure without requiring the structure to
comply with Section 1613, provided the alterations con-
form to the requirements for a new structure. Alterations
that increase the seismic force in any existing structural
element by more than 10 percent cumulative since the
original construction or decrease the design strength of
any existing structural element to resist seismic forces by
more than 10 percent cumulative since the original con-
struction shall not be permitted unless the entire seis-
mic-force-resisting system is determined to conform to
ASCE 7 for a new structure. If the building's seismic base
shear capacity has been increased since the original con-
struction, the percent change in base shear may be calcu-
lated relative to the increased value.
Exception: Alterations to existing structural ele-
ments or additions of new structural elements that are
not required by ASCE 7 and are initiated for the pur-
pose of increasing the strength or stiffness of the seis-
mic-force-resisting system of an existing structure
need not be designed for forces confonning to ASCE
7, provided that an engineering analysis is submitted
indicating the following:
1 . The design strength of existing structural ele-
ments required to resist seismic forces is not re-
duced.
2. The seismic force to required existing structural
elements is not increased beyond their design
strength.
3. New structural elements are detailed and con-
nected to the existing structural elements as re-
quired by Chapter 16.
4. New or relocated nonstructural elements are
detailed and connected to existing or new struc-
tural elements as required by Chapter 16.
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2008 CITY OF LOS ANGELES BUILDING CODE
EXISTING STRUCTURES
5. The alterations do not create a structural irregu-
larity as defined in ASCE 7 or make an existing
structural irregularity more severe.
6. The alterations do not result in the creation of an
unsafe condition.
3403.2.3.3 Adoption. [OSHPD 2] All additions, alter-
ations, repairs and seismic retrofit to the existing struc-
tures or portions thereof may be designed and
constructed in accordance with the provisions ofFEMA
356, as modified herein.
3403.2.3.3.1 Referenced standards. All referenced
standards listed in FEMA 356 shall be replaced by
referenced standards listed in Chapter 35 of this code.
3403.2.3.3.2 FEMA 356 Section 1.5 — Target build-
ing performances. Target building performance level
shall be Life Safety Building Performance Level (3-C)
as defined in Section L5.3.3, with Structural perfor-
mance level S-3 as defined in Section L5.L3 and
N on- structural performance level N-C as defined in
Section L5.2.3.
3403.2.3.3.3 FEMA 356 Section 1.6 — Seismic haz-
ard. The ground motion characterization shall be
based on ground shaking having a 10-percent proba-
bility of exceedance in 50 years.
Ground shaking having a 10-percent probability of
exceedance in 50 years need not exceed Vj of the max-
imum considered earthquake.
Response spectra and acceleration time histories
shall be constructed in accordance with Sections
1613, 1802.7 and 1802.8.
3403.2.3.3.4 Analysis procedure. The selection of a
particular analysis procedure from FEMA 356 may
be subject to the approval of the enforcement agent.
3403.2.3.3.5 Design criteria. Prior to implementa-
tion ofFEMA 356 non-linear procedures, the ground
motion, analysis and design methods, material
assumptions and acceptance criteria proposed by the
engineer shall be reviewed by the enforcement agent.
3403.2.3.3.6 Enforcement agency approval. The
analysis, conclusion and design decisions shall be
reviewed and accepted by the enforcement agent.
3403.2.3.3.7 Structural observation, testing and
inspections. Construction testing, inspection and
structural observation requirements shall be as
required for new construction.
3403.3 Nonstructural. Nonstructural alterations or repairs to
an existing building or structure are permitted to be made of the
same materials of which the building or structure is con-
structed, provided that they do not adversely affect any struc-
tural member or the fire-resistance rating of any part of the
I building or structure.
3403.4 Stairways. An alteration or the replacement of an exist-
ing stairway in an existing structure shall not be required to
comply with the requirements of a new stairway as outlined in
Section 1009 where the existing space and construction will
not allow a reduction in pitch or slope.
SECTION 3404
FIRE ESCAPES
3404.1 Where permitted. Fire escapes shall be permitted only
as provided for in Sections 3404.1.1 through 3404.1.4.
3404.1.1 New buildings. Fire escapes shall not constitute
any part of the required means of egress in new buildings.
3404.1.2 Existing fire escapes. Existing fire escapes shall
be continued to be accepted as a component in the means of
egress in existing buildings only.
3404.1.3 New fire escapes. New fire escapes for existing
buildings shall be permitted only where exterior stairs can-
not be utilized due to lot lines limiting stair size or due to the
sidewalks, alleys or roads at grade level. New fire escapes
shall not incorporate ladders or access by windows.
3404.1.4 Limitations. Fire escapes shall comply with this
section and shall not constitute more than 50 percent of the
required number of exits nor more than 50 percent of the
required exit capacity.
3404.2 Location. Where located on the front of the building
and where projecting beyond the building line, the lowest land-
ing shall not be less than 7 feet (2134 mm) or more than 12 feet
(3658 mm) above grade, and shall be equipped with a counter-
balanced stairway to the street. In alleyways and thoroughfares
less than 30 feet (9144 mm) wide, the clearance under the low-
est landing shall not be less than 12 feet (3658 mm).
3404.3 Construction. The fire escape shall be designed to sup-
port a live load of 100 pounds per square foot (4788 Pa) and
shall be constructed of steel or other approved noncombustible
materials. Fire escapes constructed of wood not less than nomi-
nal 2 inches (5 1 mm) thick are permitted on buildings of Type 5
construction. Walkways and railings located over or supported
by combustible roofs in buildings of Type 3 and 4 construction
are permitted to be of wood not less than nominal 2 inches (5 1
mm) thick.
3404.4 Dimensions. Stairs shall be at least 22 inches (559 mm)
wide with risers not more than, and treads not less than, 8
inches (203 mm) and landings at the foot of stairs not less than
40 inches (1016 mm) wide by 36 inches (914 mm) long,
located not more than 8 inches (203 mm) below the door.
3404.5 Opening protectives. Doors and windows along the
fire escape shall be protected with V4-hour opening protectives.
SECTION 3405
GLASS REPLACEMENT
3405.1 Conformance. The installation or replacement of glass
shall be as required for new installations.
2008 CITY OF LOS ANGELES BUILDING CODE
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EXISTING STRUCTURES
SECTION 3406
,1 Comformance. No change shall be made in the use or
occupancy of any building that would place the building in a
different division of the same group of occupancy or in a differ-
ent group of occupancies, unless such building is made to com-
ply with the requirements of this code for such division or
group of occupancy. Subject to the approval of the building
official, the use or occupancy of existing buildings shall be per-
mitted to be changed and the building is allowed to be occupied
for purposes in other groups without conforming to all the
requirements of this code for those groups, provided the new or
proposed use is less hazardous, based on life and fire risk, than
the existing use.
34®6.2 Certllcate of occrapancy. A certificate of occupancy
shall be issued where it has been determined that the require-
ments for the new occupancy classification have been met.
34®6o3 Stairways. Existing stairways in an existing structure
shall not be required to comply with the requirements of a new
stairway as outlined in Section 1009 where the existing space
and construction will not allow a reduction in pitch or slope.
3406.4 Clnaege of occupancy. When a change of occupancy
results in a structure being reclassified to a higher occupancy
category, the structure shall confoim to the seismic require-
ments for a new structure.
Exceptions:
1. Specific seismic detailing requirements of this code
or ASCE 7 for a new structure shall not be required to
be met where it can be shown that the level of perfor-
mance and seismic safety is equivalent to that of a new
structure. Such analysis shall consider the regularity,
overstrength, redundancy and ductility of the struc-
ture within the context of the existing and retrofit (if
any) detailing provided.
2. When a change of use results in a structure being re-
classified from Occupancy Category I or II to Occu-
pancy Category III and the structure is located in a
seismic map area where S^s < 0.33, compliance with
the seismic requirements of this code and ASCE 7 are
not required.
SECTION 3407
HISTORICAL BUILDINGS
.1 Historic buildings. Historic buildings or structures la
shall comply with Section 81 19 of this Code. la
SECTION 3408
MOVED STRUCTURES
3408.1 Moved structures. Buildings or structures that- are la
relocated in whole or in part into or within the City of Los [^
Angeles shall comply with the provisions of Chapter 83 of this la
Code. ^'^
SECTION 3409
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SECTION 3410
iPLlANCE ALTERNATIVES
nance. The provisions of this section are
intended to maintain or increase the current degree of public
safety, health and general welfare in existing buildings while
permitting repair, alteration, addition and change of occupancy
without requiring full compliance with Chapters 2 through 33,
or Sections 3401 .3, and 3403 through 3407, except where com-
pliance with other provisions of this code is specifically
required in this section.
3410,2 Applicability. Structures existing prior to January 1,
2008, in which there is work involving additions, alterations or
changes of occupancy shall be made to conform to the require-
ments of this section or the provisions of Sections 3403 through
3407. The provisions in Sections 3410.2.1 through 3410.2.5
shall apply to existing occupancies that will continue to be, or
are proposed to be, in Groups A, B, E, F, M, R, S and U. These
provisions shall not apply to buildings with occupancies in
Group H or I.
.2.1 Change in occupancy. Where an existing build-
ing is changed to a new occupancy classification and this
section is applicable, the provisions of this section for the
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CHAPTER 61
SPECIAL HAZARD AREAS
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SECTION 6101
IMPACT HAZARD GLAZING
IN EXISTING BUILDINGS
6101.1 Impact hazard glazing in existing buildings. When
application is made for a permit for alterations, repairs or addi-
tions to real property, the permit shall be withheld until the
department receives a sworn affidavit from the real property
owner stating:
1 . Prior to final inspection of the work under the permit, the
owner shall replace the glass in every existing sliding
glass panel of sliding-type doors, other than wardrobe
doors and bathroom shower doors and French-type
wooden doors, in the residential portion of the building
with approved safety glazing pursuant to Section 2406 of
this Code; or
2. The owner declares the existing glazing of the glass in
every sliding glass panel of sliding-type doors, other
than wardrobe doors and bathroom shower doors and
French-type wooden doors, in the residential portion of
the building complies with the safety glazing require-
ments pursuant to Section 2406 of this Code.
Exception: The owner may install film on the glass in every
existing sliding glass panel of sliding-type doors, other than
wardrobe doors and bathroom shower doors and
French-type wooden doors, in the residential portion of the
building with film approved by the department.
6101.2 Application. The provisions of this section shall apply
only in the following circumstances:
1 . To Group R-3 occupancy, if a permit is issued with a val-
uation of $ 10,000 or more per unit for alterations, repairs
or additions;
2. To Group R- 1 , R-2, R-3 . 1 or R-4 occupancy, if a permit
is issued for $3,000 or more per dwelling unit and/or
guest room for alterations, repairs or additions;
3. To an individual unit of Group R-1, R-2, R-3.1 or R-4
occupancy, townhouse or condominium, if a permit is
issued for $10,000 or more for alterations, repairs or
additions to that individual unit; and
4. To any Group R occupancy that is sold or exchanged,
including an individual townhouse or condominium
unit.
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SECTION 6102
RUBBISH ROOMS
Every room, except a room in a Group R, Division 3 occu-
pancy, appropriated for the storage or treatment of combustible
rubbish, shall be of 1 -hour fire-resistive construction. All open-
ings in interior partitions shall be protected by a fire assembly
having a 1-hour fire-resistive rating. All openings in exterior
walls shall be protected by a fire assembly having a ^1^ hour
fire-resistive rating.
SECTION 6103
SHAFTS, PITS AND SIMILAR EXCAVATION -
MISDEMEANOR
Every person owning or having charge of land upon which is
located any active or abandoned mining shaft, test hole, well,
pit or similar excavation which exceeds 6 inches (152 mm) in
any lateral dimension and 3 feet (914 mm) in depth shall cover,
fence securely or provide some equivalent protection for the
hazard and keep it so protected. Failure to do so shall cause
such person to be guilty of a misdemeanor.
SECTION 6104
FIRE DISTRICTS
Buildings located in a fire district shall comply with the provi-
sions of Chapter 72 in addition to the general requirements of
this Code.
SECTION 6105
SEPARATION FROM OIL WELLS
No building more than 400 square feet (37 m^) in area and less
than 36 feet (10 973 mm) in height shall be erected within 50
feet (15 240 mm) from the center of an oil well casing and no
building 3 6 feet ( 1 97 3 mm) in height shall be erected closer to
the center of an oil well casing than a horizontal distance equal
to one and one-half times the height of the building provided,
however, that that distance need not exceed 200 feet (60 960
mm). The building shall be measured vertically from the adja-
cent ground elevation adjoining the building to the ceiling of
the top story.
Exceptions: ; The distance separation between a building
and an oil well may be reduced to the following:
1. Thirty-five feet (10 668 mm) if a solid masonry wall
not less than 6 feet (1829 mm) high and six inches
(1829 mm) thick is constructed between the oil well
and all portions of the buildings, which are less than
50 feet (15 240 mm) from the wall;
2. Twenty-five feet (635 mm) if all walls of the building,
which are located less than 50 feet (15 240 mm) from
the oil well, are of 1-hour fire-resistive construction,
have no openings, and are surmounted by a 3-foot
(914 mm) high parapet;
3. Fifteen feet (68 580 mm) if all walls of the building,
which are located less than 50 feet (15 240 mm) from
the oil well, are of 2-hour fire-resistive construction,
have no openings, and are surrriounted by a 3 -foot
(914 mm) high parapet.
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2008 CITY OF LOS ANGELES BUILDING CODE
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SPECIAL HAZARD AREAS
[^ No building used for the housing of human beings located on
LA any premises where there is a school, hospital, sanitarium or
L^ assembly occupancy shall be within 200 feet (60 960 mm) from
LA the center of an oil well casing, nor shall any public utility fuel
LA manufacturing plant, or public utility electrical generating,
LA receiving or distribution plant be located closer than 200 feet
LA (60 960 mm) from the center of the oil well casing.
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SECTION 6109
SWir\/ll\/8ING POOLS AND OTHER BODIES OF
WATER - PROTECTIVE DEVICES REQUIRED
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[-^ 6109.1 Fences. Every swimming pool, fish pond or other body
LA of water, which contains water 1 8 inches (5486 mm) or more in
L^ depth, shall be enclosed by a fence, the height of which, includ-
LA ing gates, shall be not less than 4'/2 feet (1372 mm) above the
L^ ground. Gates shall be self-latching with the latch located 4V2
LA feet (1372 mm) minimum above the ground. However, for new
LA swimming pools or spas, the height and construction of the
LA fence and gate shall comply with the requirements of Chapter
LA 31, whichever is more restrictive and provide greater safety.
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LA Where the ground surface on the side of the fence away from
[-A the body of water slopes upward, 472 feet (1372 mm) clearance
LA shall be maintained between the fence and the face of the slope.
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LA In lieu of maintaining a fence, the owner may provide a com-
[^ petent person who shall keep the pool under observation at all
LA times while water is kept in the pool.
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Exception: The provisions of this section shall not apply to
oceans, lakes, rivers, streams and similar bodies of water,
which are publicly owned over which the State of California
of the City or County of Los Angeles has control and juris-
diction.
[^ 6109.2 Existing body of water. The provisions of this section
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SECTION 6201
GENERAL PROVISIONS
L.l General. A sign shall not be erected in a manner that
would confuse or obstruct the view of or interfere with exit
signs required by Chapter 10 or with official traffic signs, sig-
nals or devices. Signs and sign support structures, together with
their supports, braces, guys and anchors, shall be kept in repair
and in proper state of preservation. The display surfaces of
signs shall be kept neatly painted or posted at all times.
6201.2 Sign permits. A building permit shall be obtained from
the department in accordance with the provisions of Section
106 of this Code for any sign (including a temporary sign)
and/or sign alteration, other than changes or replacement of
copy, that are regulated by this chapter or by Chapter I of the
Los Angeles Municipal Code. Where signs are illuminated by
electric lighting, an electrical permit shall also be obtained as
required by the Electrical Code.
Exception: The following signs are exempt from the
requirements to obtain a permit before erection:
. Signs not exceeding 20 square feet in area, placed
upon the surface of the ground, no part oif which
extends more than 6 feet 6 inches (1981 mm) above
the underlying ground, which have no mechanical or
moving parts or to which no electricity or other source
of illumination or power are attached to or made a part
of the sign. Signs that fit within this category shall be
separated from each other a minimum distance of 15
feet.
2. Boards and signs used exclusively to display official
notices issued by any court or public officer in the per-
formance of a public duty or by a private person in
giving legal notice.
3. Temporary signs containing political, ideological or
other noncommercial messages.
The Department may revoke any sign permit as provided in
Section 98.0601(a) of the Los Angeles Municipal Code.
6201.3 Sign permit priority status.
1. To maintain location, area, frontage, or spacing status,
signs must be installed within 6 months of issuance of a
building permit or prior to expiration of any permit
extension granted by the Department.
2. Where more than one permit has been issued and the
effect of those permits when considered together results
in a violation of this chapter, all permits except the per-
mit with the earlier date and time of issuance shall be
invalid.
6201.4 Violations. It shall be unlawful for any person to erect,
construct, install, enlarge, alter, repair, move, remove, convert,
demolish, use or maintain any sign or sign support structure or
cause or permit those actions to be done, in violation of any of
the provisions of this chapter.
Any person who violates or causes or, permits another per-
son to violate any of the provisions of this chapter is guilty of a
misdemeanor.
6201.5 Penalties. Any person convicted of a misdemeanor
under the provisions of this chapter shall be punishable by a
fme of not more than $1,000.00 or by imprisonment in the
county jail for a period of not more than 6 months, or by both
fme and imprisonment. Each violation of the provisions of this
chapter and each day during which a violation is committed or
continues is a separate offense.
Any person convicted of violating any provision of this
chapter may be required to pay restitution to the City of Los
Angeles for all costs expended to investigate and/or enforce the
provisions of this chapter.
6201.6 Modifications.
6201.6.1 Authority. In addition to its authority to grant
sHght modifications pursuant to Section 98.0403.1 of the
Los Angeles Municipal Code, the board shall have the
authority to grant significant modifications from these sign
regulations.
6201.6.2 Basis. Before granting a significant modification,
the board must find that (1) a special, individual reason
makes the. strict letter of the ordinance impractical and (2)
the requested modification is in conformity with the spirit
and purposes of the objectives set forth in Section 6201.6.6
of this Code.
6201.6.3 Procedure.
6201.6.3.1 Requests for modifications in individual
cases shall be made in accordance with the procedure
established in Section 98.0403.1 of the Los Angeles
Municipal Code.
6201.6.3.2 The Department shall determine whether an
application is for a slight modification or a significant
modification. The department's determination that a pro-
posed modification is significant shall be final and may
not be appealed to the Board.
6201.6.3.3 An application for a request for significant
modification shall be made to the Board. The applicant,
in his or her request, shall state the special, individual
reason that makes compliance with the strict letter of the
provisions in question impractical and shall show that the
modification requested is in conformity with the spirit
and purpose of this chapter.
On the date of receipt of filing of the application, the
file of the Department shall be forwarded to the board.
Upon receipt of the application, the board shall set the
matter for hearing and give notice by mail not less than
ten days before the hearing of the time, place and purpose
of the hearing to the applicant, to the owners of the prop-
erty involved, and to the owners of all property within or
outside of the City that is within a 300-foot (91 440 mm)
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radius of the property on which the sign is to be placed as
shown on the records of the City Clerk, or in the case of
property outside the City, the records of the County
Assessor.
, The Board may refer a request for
a significant modification to the Sign Advisory Committee
(Section 105.4 of this code) for evaluation and recommen-
dation before it renders a decision.
L6.5 Fees. Processing fees for significant modifications
are the same as those set forth for appeals to the Board in
Section 98.0403. 1 of the Los Angeles Municipal Code. Sig-
nificant modifications may also be subject to the fees set
forth in Section 105.4 of this Code and Section 19.05 of the
Los Angeles Municipal Code.
L.6.(5 Perpose. The purpose of this chapter is to promote
public safety and welfare by regulating signs in keeping
with the following objectives:
1 . That the design, construction, installation, repair and
maintenance of signs will not interfere with traffic
safety or otherwise endanger public safety; and
2. That both the public and sign users will benefit from
signs having improved legibility, readability and visi-
bility.
SECTION 6202
DEFBiMlTSONS
6202.1 General. Unless otherwise expressly stated, the fol-
lowing words and terms shall, for the purposes of this appen-
dix, have the meanings shown herein. Refer to Chapter 2 of the
California Building Code for general definitions.
COMBINATION SIGN. A sign incorporating any combina-
tion of the features of pole, projecting and roof signs.
ELECTRIC SIGN. A sign containing electrical wiring, but
not including signs illuminated by an exterior light source.
GROUND SIGN. A billboard or similar type of sign which is
supported by one or more uprights, poles or braces in or upon
the ground other than a combination sign or pole sign, as
defined by this code.
LA MASONRY INFILL. Masonry infill is the unreinforced or
LA reinforced masonry wall construction within a reinforced con-
^ Crete frame.
POLE SIGN. A sign wholly supported by a sign structure in
the ground.
SIGN. A sign other than a wall sign, which
projects from and is supported by a wall of a building or struc-
ture.
J. A sign erected upon or above a roof or parapet
of a building or structure.
SIGN. Any letter, figure, character, mark, plane, point, mar-
quee sign, design, poster, pictorial, picture, stroke, stripe, line,
trademark, reading matter or illuminated service, which shall
be constructed, placed, attached, painted, erected, fastened or
manufactured in any manner whatsoever, so that the same shall
be used for the attraction of the public to any place, subject, per-
son, firm, corporation, public performance, article, machine or
merchandise, whatsoever, which is displayed in any manner
outdoors. Every sign shall be classified and conform to the
requirements of that classification as set forth in this chapter.
Any structure which supports or is
capable of supporting a sign as defined in this code. A sign
structure is permitted to be a single pole and is not required to
be an integral part of the building.
SOLID MASONRY. Solid masonry shall mean reinforced |-A
masonry properly designed in accordance with Chapter 21 of la
this Code and shall not include an unreinforced masonry bear- |-^
ing wall as defined in Section 8803 of this Code and masonry la
infill as defined in this section. "-^
WALL SIGN. Any sign attached to or erected against the wall
of a building or structure with the exposed face of the sign in a
plane parallel to the plane of said wall.
SECTION 6203
6203.1 Location restrictions. Signs shall not be erected, con-
structed or maintained so as to obstruct any fire escape or any
window or door or opening used as a means of egress or so as to
prevent free passage from one part of a roof to any other part
thereof. A sign shall not be attached in any form, shape or man-
ner to a fire escape, nor be placed in such manner as to interfere
with any opening required for ventilation.
SECTION 6204
IDENTIFICATION
6204.1 Identification. Every outdoor advertising display sign
hereafter erected, constructed or maintained, for which a per-
mit is required shall be plainly marked with the name of the per-
son, firm or corporation erecting and maintaining such sign and
shall have affixed on the front thereof the permit number issued
for said sign or other method of identification approved by the
building official.
6204.2 Notification to sign purchasers. Any person who sells
an identification sign, monument sign, pole sign, projecting
sign or wall sign, as those terms are defined in Chapter I of the
Los Angeles Municipal Code, for installation in the City of Los
Angeles, shall provide written notice of the provisions of this
chapter to the purchaser. The Superintendent of Building shall
promulgate regulations setting forth the content for this notifi-
cation.
SECTION 6205
DESIGN AND CONSTRUCTION
)5.1 General requirements. Signs shall be designed and
constructed to comply with the provisions of this Code for use
of materials, loads and stresses. Glass panels used in signs shall
comply with the size, thickness and type of glass as shown in
Table 4-A of this chapter. The use, location, size, area and
height of the sign shall comply with the provisions of this Code
and Chapter I of the Los Angeles Municipal Code, whichever is
more restrictive.
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)5.2 Permits, drawings and specifications. Where a per-
mit is required, as provided in Chapter 1 of this Code, construc-
tion documents shall be required. These documents shall show
the dimensions, material and required details of construction,
including loads, stresses and anchors.
(5205.3 Wind load. Signs shall be designed and constructed to
withstand wind pressure as provided for in Chapter 16.
6205.4 Seismic load. Signs designed to withstand wind pres-
sures shall be considered capable of withstanding earthquake
loads, except as provided for in Chapter 16.
6205.5 Working stresses. In outdoor advertising display
signs, the allowable working stresses shall conform to the
requirements of Chapter 16. The working stresses of wire rope
and its fastenings shall not exceed 25 percent of the ultimate
strength of the rope or fasteners.
Exceptions:
1. The allowable working stresses for steel and wood
shall be in accordance with the provisions of Chapters
22 and 23.
2. The working strength of chains, cables, guys or steel
rods shall not exceed one-fifth of the ultimate strength
of such chains, cables, guys or steel.
6205.6 Attachment. Signs attached to masonry, concrete or
steel shall be safely and securely fastened by means of metal
anchors, bolts or approved expansion screws of sufficient size
and anchorage to safely support the loads applied.
5.18 Off-site sign periodic inspection program.
6205.18.1 General. All off-site signs subject to the provi-
sions of Chapter I of the Los Angeles Municipal Code will
be subject to regular inspection by the Superintendent or an
authorized representative. Inspections may also be com-
plaint-based.
6205.18.2 Fees for inspection. This fee shall be known as
the "Off-Site Sign Periodic Inspection Fee." The person in
control of an off-site sign subject to inspection shall pay a
regulatory fee on or before October 1, 2002. Thereafter, the
fee shall be due on October 1 of each and every year. The fee
for the 2002-2003 fiscal year is $314.00 per off-site sign
structure.
If the fees are not paid on or before the last day of the
month in which they are due, a monthly penalty equal to 5
percent of any outstanding fees, but not less than $10.00,
shall be added to those fees. Any fees remaining unpaid
after the last day of the month shall continue to accrue an
additional monthly penalty of 5 percent of the outstanding
principal fees on the last day of each month until paid in full.
Should the owner fail to pay the required fee, the City of Los
Angeles will recover it, plus accrued penalties, utilizing any
remedies provided by law.
The department shall cause all money collected pursuant
to this section to be deposited into the Off-Site Sign Periodic
Inspection Fee Trust Fund described in Section 5. 1 1 1 . 17 of
the Los Angeles Administrative Code for purposes of dis-
bursement as that section permits. Any unspent fees col-
lected under the provisions of this section shall be credited
and considered for purposes of determining the amount of
the fee for the next fiscal year. The Department of Building
and Safety shall report to the city council, no later than June
30 of each year, on the actual costs of the regulatory pro-
gram and shall recommend the amount of the fee for the next
fiscal year.
The regulatory fee shall be used to finance the costs of
administering the inspection program, including but not
limited to investigation, inspection, issuance of inspection
certificates, maintenance of the off-site sign database and
the cost of civil enforcement. Payment of the fee shall not
create a presumption that the sign is lawfully erected, as that
term is defined in Section 6205.18.9 of this Code.
6205.18.3 Inspection certificate. The Department or its
designee shall upon payment of proper fees, and furnishing
of the building permit number, or a copy of the building per-
mit, or a statement signed under penalty of perjury setting
forth the circumstances by which the sign was acquired
and/or installed and/or the date of issuance of the building
permit, issue a certificate affirming that the "Off-Site Sign
Periodic Inspection Fee" was paid. Thereafter, the Depart-
ment or its designee shall issue a renewal certificate upon
payment of proper fees and the furnishing of a statement
affirming that there are no changes to the information pro-
vided for the original inspection certificate, or a statement
signed under penalty of perjury setting forth any updated
information. The certificate or renewal certificate shall be
attached to the exterior surface of the sign body in a location
that will be readable from ground level.
6205.18.4 Frequency of inspection. Each off-site sign
shall be inspected annually after the initial inspection.
6205.18.5 Off-site sign inventory. The Department shall
maintain a database containing the following information
on all signs subject to inspection pursuant to Section
6205.18 et seq. of this Code. The database shall contain:
building permit number, size of sign as shown on the build-
ing permit, date installed, any subsequent building permits
issued for that sign, and any information required pursuant
to this chapter or obtained pursuant to inspection.
6205.18.6 Orders. If, upon inspection, the Superintendent
of Building or an authorized representative discovers one or
more violations of this Code, the Superintendent of
Building shall cause to be issued an Order To Comply.
6205.18.7 Reinspection. The Superintendent or an autho-
rized representative shall reinspect the off-site sign after the
time specified in the order has passed to determine whether
the violation has been corrected. If it has not been corrected,
then the Superintendent of Building may take any enforce-
ment action the Superintendent of Building deems appro-
priate.
6205.18.8 Violations. If the person in control of an off-site
sign fails to pay the fees required in this section and the
Department determines that the off-site sign was not law-
fully erected, the off-site sign shall be subject to the provi-
sions of Section 6205.18.9 of this Code.
6205.18.9 Usage. If the Department determines that an
off-site sign was not lawfully erected, then the off-site sign
shall have its sign face removed and replaced with blank
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2008 CITY OF LOS ANGELES BUILDING CODE
613
SIGNS
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panels. The term "lawfully erected" means an off-site sign
that was erected in compliance with the provisions of this
code in effect at the time of its erection or which was subse-
quently brought into full compliance with the provisions of
this Code, except that the term does not apply to any off-site
sign whose use was modified after erection in a manner that
caused it to become illegal.
SECTIOM 6206
ELECTRICAL
tt. A sign shall not be illuminated by other
than electrical means, and electrical devices and wiring shall be
installed in accordance with the requirements of the California
Electrical Code. Any open spark or flame shall not be used for
display purposes unless specifically approved.
6206.1.1 Imtemally illuminated signs. Except as provided
for in Sections 402.14 and 2611, where internally illumi-
nated signs have facings of wood or approved plastic, the
area of such facing section shall not be more than 1 20 square
feet (11.16 m^) and the wiring for electric lighting shall be
entirely enclosed in the sign cabinet with a clearance of not
less than 2 inches (5 1 nrmi) from the facing material. The
dimensional limitation of 120 square feet (11.16 m^) shall
not apply to sign facing sections made from flame-resis-
tant-coated fabric (ordinarily known as "flexible sign face
plastic") that weighs less than 20 ounces per square yard
(678 g/m^) and that, when tested in accordance with NFPA
701, meets the fire propagation performance requirements
of both Test 1 and Test 2 or that when tested in accordance
with an approved test method, exhibits an average bum time
of 2 seconds or less and a burning extent of 5.9 inches (150
mm) or less for 10 specimens.
6206.2 Electrical service. Signs that require electrical service
shall comply with the California Electrical Code.
SECTBON 6207
COMBUSTIBLE MATERIALS
6207.1 Use of combustiMes. Wood, approved plastic or plastic
veneer panels as provided for in Chapter 26 of this Code or
other materials of combustible characteristics similar to wood
that is used for moldings, cappings, nailing blocks, letters and
latticing shall comply with Section 6209.1 of this Code and
shall not be used for other ornamental features of signs, unless
approved.
6207.1.1 Plastic materials. Notwithstanding any other pro-
visions of this code, plastic materials which burn at a rate no
faster than 2.5 inches per minute (64 mm/s) when tested in
accordance with ASTM D 635 shall be deemed approved
plastics and can be used as the display surface material and
for the letters, decorations and facings on signs and outdoor
display structures.
6207.1.2 Electric sigm faces. Individual plastic facings of
electric signs shall not exceed 200 square feet (18.6 m^) in
area.
ered by approved plastics shall be limited to 200 square feet
(18.6 m^) plus 50 percent of the difference between 200
square feet (18.6 m^) and the area of display surface. The
area of plastic on a display surface shall not in any case
exceed 1,100 square feet (102 m^).
L.4 Plastic appurtenances. Letters and decorations
mounted on an approved plastic facing or display surface
can be made of approved plastics.
SECTION 6208
ANIMATED DEVICES
6208.1 FaO-safe device. Signs that contain moving sections or
ornaments shall have fail-safe provisions to prevent the section
or ornament from releasing and falling or shifting its center of
gravity more than 15 inches (381 mm). The fail-safe device
shall be in addition to the mechanism and the mechanism's
housing which operate the movable section or ornament. The
fail-safe device shall be capable of supporting the full dead
weight of the section or ornament when the moving mechanism
releases.
SECTION 6209
GROUND SIGNS
6209.1 Height restrictions. The structural frame of ground
signs shall not be erected of combustible materials to a height
of more than 35 feet (10668 mm) above the ground. Ground
signs constructed entirely of noncombustible material shall not
be erected to a height of greater than 100 feet (30 480 mm)
above the ground. Greater heights are permitted where
approved and located so as not to create a hazard or danger to
the public.
^.2 Required clearance. The bottom coping of every
ground sign shall be not less than 3 feet (914 mm) above the
ground or street level, which space can be filled with platform
decorative trim or light wooden construction.
6209.3 Wood anchors and supports. Where wood anchors or
supports are embedded in the soil, the wood shall be pressure
treated with an approved preservative.
M.3 Area limitation. If the area of a display surface
exceeds 200 square feet (18.6 m^), the area occupied or cov-
SECTION6210
ROOF SIGNS
6210.1 General. Roof signs shall be constructed entirely of
metal or other approved noncombustible material except as
provided for in Sections 6206. 1.1 and 6207.1 ofthis Code. Pro-
visions shall be made for electric grounding of metallic parts.
Where combustible materials are permitted in letters or other
ornamental features, wiring and tubing shall be kept free and
insulated from each other. Roof signs shall be so constructed as
to leave a clear space of not less than 6 feet (1829 mm) between
the roof level and the lowest part of the sign and shall have at
least 5 feet (1524 mm) clearance between the vertical supports.
No portion of any roof sign structure shall project beyond an
exterior wall.
6210.2 Bearing plates. The bearing plates of roof signs shall
distribute the load directly to or upon masonry walls, steel roof
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2008 CITY OF LOS ANGELES BUILDING CODE
SIGNS
girders, columns or beams. The building shall be designed to
avoid overstress of these members.
6210.3 Height of solid signs. A roof sign having a solid surface
shall not exceed, at any point, a height of 24 feet (7315 mm)
measured from the roof surface.
6210.4 Height of open signs. Open roof signs in which the uni-
form open area is not less than 40 percent of total gross area
shall not exceed a height of 75 feet (22 860 mm) on buildings of
Type 1 or Type 2 construction. On buildings of other construc-
tion types, the height shall not exceed 40 feet (12 192 mm).
Such signs shall be thoroughly secured to the building upon
which they are installed, erected or constructed by iron, metal
anchors, bolts, supports, chains, stranded cables, steel rods or
braces and they shall be maintained in good condition.
6210.5 Height of dosed signs. A closed roof sign shall not be
erected to a height greater than 50 feet (15 240 mm) above the
roof of buildings of Type 1 or Type 2 construction, nor more
than 35 feet (10 668 mm) above the roof of buildings of Type 3,
4 or 5 construction.
SECTION 6211
WALL SIGNS
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LA square feet (3.72 m^) shall be constructed of metal or other
LA approved noncombustible material, except for nailing rails and
ij-^ asprovidedforin Sections 6206.1.1 and 6207.1 of this Code.
6211.2 Exterior wall mounting details. Wall signs attached to
exterior walls of solid masonry, concrete or stone shall be.
safely and securely attached by means of metal anchors, bolts
or expansion screws of not less than Vg inch (9.5 mm) diameter
and shall be embedded at least 5 inches (127 mm). Wood
blocks shall not be used for anchorage, except in the case of
wall signs attached to buildings with walls of wood. A wall sign
shall not be supported by anchorages secured to an unbraced
parapet wall.
6211.3 Extension. Wall signs shall not extend above the top of
the wall, nor beyond the ends of the wall to which the signs are
attached unless such signs conform to the requirements for roof
signs, projecting signs or ground signs.
one facial area, there shall be provided at least two such sup-
ports on each side not more than 8 feet (2438 mm) apart to
resist the wind pressure.
6212.2 Attachment of supports. Supports shall be secured to
a bolt or expansion screw that will develop the strength of the
supporting chains, guys or steel rods, with a minimum %-inch
(15.9 mm) bolt or lag screw, by an expansion shield. Turn buck-
les shall be placed in chains, guys or steel rods supporting pro-
jecting signs.
6212.3 Wall mounting details. Chains, cables, guys or steel
rods used to support the live or dead load of projecting signs are
permitted to be fastened to solid masonry walls with expansion
bolts or by machine screws in iron supports, but such supports
shall not be attached to an unbraced parapet wall. Where the
supports must be fastened to walls made of wood, the support-
ing anchor bolts must go through the wall and be plated or fas-
tened on the inside in a secure manner.
6212.4 Height limitation. A projecting sign shall not be
erected on the wall of any building so as to project above the
roof or cornice wall or above the roof level where there is no
cornice wall; except that a sign erected at a right angle to the
building, the horizontal width of which sign is perpendicular to
such a wall and does not exceed 18 inches (457 mm), is permit-
ted to be erected to a height not exceeding 2 feet (610 mm)
above the roof or cornice wall or above the roof level where
there is no cornice wall. A sign attached to a comer of a build-
ing and parallel to the vertical line of such comer shall be
deemed to be erected at a right angle to the building wall.
6212.5 Additional loads. Projecting sign stmctures which will
be used to support an individual on a ladder or other servicing
device, whether or not specifically designed for the servicing
device, shall be capable of supporting the anticipated addi-
tional load, but not less than a 100-pound (445 N) concentrated
horizontal load and a 300-pound (1334 N) concentrated verti-
cal load applied at the point of assumed or most eccentric load-
ing. The building component to which the projecting sign is
attached shall also be designed to support the additional loads.
SECTION 6212
PROJECTING SIGNS
6212.1 General. Projecting signs shall be constmcted entirely
of metal or other noncombustible material and securely
attached to a building or stmcture by metal supports, such as
bolts, anchors, supports, chains, guys or steel rods. Staples or
nails shall not be used to secure any projecting sigh to any
building or stracture. The dead load of projecting signs not par-
allel to the building or stmcture and the load due to wind pres-
sure shall be supported with chains, guys or steel rods having
net cross-sectional dimension of not less than % inch (9.5 mm)
diameter. Such supports shall be erected or maintained at an
angle of at least 45 percent (0.78 rad) with the horizontal to
resist the dead load and at angle of 45 percent (0.78 rad) or
more with the face of the sign to resist the specified wind pres-
sure. If such projecting sign exceeds 30 square feet (2.8 m2) in
SECTION 6213 la
MARQUEE SIGNS j^^
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6213.1 Materials. Marquee signs shall be constmcted entirely la
of metal or other approved noncombustible material and/or la
approved plastic and glass. la
6213.2 Attachment. Marquee signs shall be attached to
approved marquees that are constructed in accordance with
Section 3106:
6213.3 Dimensions. Marquee signs, whether on the front or
side, shall not project beyond the perimeter of the marquee.
6213.4 Height limitation. Marquee signs shall not extend
more than 6 feet (1829 mm) above, nor 1 foot (305 mm) below
such marquee, but under no circumstances shall the sign or
signs have a vertical dimension greater than 8 feet (2438 mm).
2008 CITY OF LOS ANGELES BUILDING CODE
615
SIGNS
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PORTABLE S
6214.1 General. Portable signs shall conform to requirements
for ground, roof, projecting, flat and temporary signs where
such signs are used in a similar capacity. The requirements of
this section shall not be construed to require portable signs to
have connections to surfaces, tie-downs or foundations where
provisions are made by temporary means or configuration of
the structure to provide stability for the expected duration of
the installation.
SECTI
ASTMD
Test Method for Rate of
Section
635-03
Burning and/or Extent and
Time of Burning of Self-
Supporting Plastics in a
Horizontal Position
6207.1.1
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International Code Council
Sections
Electrical Code
6206.1, 6206.2
Administrative Provisions
NFPA
Methods of Fire Test for
Section
701-99
Hame Propagation of
6206.1.1
Textiles and Films
■CTiON
ig sigm righlts. Every existing sign and/or sign
support structure constructed under a valid permit and used in
conformance with these regulations and Department approvals
in effect at the time of construction shall be allowed to continue
to exist under those regulations and approvals even though sub-
sequent adopted regulations and approvals have changed the
requirements.
6216.2 Mamtenaece of existing signs. Every sign and/or sign
support structure shall be maintained in conformity with the
requirements of this chapter and Chapter I of the Los Angeles
Municipal Code.
6216.3 Illegal signs, constraclion and ese. Every existing
sign and/or sign support structure or portion of a sign and/or
sign support structure constructed without a valid building per-
mit shall be made to conform to the current provisions of this
Code or shall be demolished and removed. Any use of an exist-
ing sign constructed without a valid building permit shall be
discontinued.
6216.4 Alterations, repairs or rehabilitation.
j.4.1 Alterations, repairs or rehabilitation of any exist-
ing sign and/or support structure may be of the same type of
construction as the existing sign or sign support structure
provided:
1 . The aggregate value of the work in any one year does
not exceed ten percent of the replacement cost of both
the sign and sign support structure; and
2. That there is no increase in sign area or height and no
change in the location or orientation of the sign.
.4,2 Alterations, repairs or rehabilitation of existing
sign and/or sign support structures in excess of ten percent
of the replacement cost of both the sign and sign support
structure may be made provided:
1 . That the cost of the work does not exceed .50 percent
of the replacement cost of both the sign and sign sup-
port structure; and
2. That there is no increase in the sign area or height and
no change in the location or orientation of the sign;
and
3. All new construction shall be as required for a new
sign of the same type.
6216.4.3 Alterations, repairs or rehabilitation of existing sign
and/or sign support structures that exceed 50 percent of the
replacement cost of both the sign and sign support structure
shall comply with all the requirements of this Code.
6216.5 Additions. Existing signs and/or sign support struc-
tures with additions or alterations that increase the sign area or
height or which change the location or orientation of the sign
shall comply with all of the requirements of this Code.
TABLE 4-A
SIZE, THICKNESS AND TYPE OF GLASS PANELS IN SIGNS
iVIAXIiViUiVi SIZE OF
EXPOSED PANEL
MINIMUM
THICKNESS
OF GLASS
(inches)
TYPE OF GLASS
Any
dimension
(inclies)
Area
(square Inches)
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500
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Plain, plate or wired
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700
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Plain, plate or wired
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3,600
V4
Plain, plate or wired
>144
>3,600
%
Wired glass
For SI: 1 inch = 25.4 mm, 1 square inch = 645. 16 mm?.
TABLE 4-B
THICKNESS OF PROJECTION SIGN
PROJECTION
(feet)
MAXIMUM THICKNESS
(feet)
5
2
4
2.5
3
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2
3.5
1
4
For SI: 1 foot = 304.8 mm.
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CHAPTER 63
ADDITIONAL PROVISIONS FOR SPECIFIC USES
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SECTION 6301
GENERAL
In addition to the requirements of this Code, buildings housing
special uses as specified herein shall conform to the require-
ments of this chapter.
SECTION 6302
FOOD ESTABLISHMENT
6302.1 General. This section shall apply to every building or
portion thereof appropriated to the processing, storage or sale
of food or drink for human consumption, but not including any
private dwelling. Every food establishment shall conform to
the requirements of this Code.
Exceptions:
1 . Food establishments that are used exclusively for the
sale of farm produce sold at or on the premises where
produced.
2. Food preparation units installed in school buildings
with the following provisions:
A. A sign must be posted requiring all mouth uten-
sils to be of single-use, disposable type.
B. The floor surface of the area must be of lino-
leum, asphalt tile, or equivalent nonabsorbent
material.
C. A residential-type vent must be installed when
a residential kitchen range is provided.
3. Employee lunch rooms if no food other than bever-
ages is prepared on the premises, and all hiouth uten-
sils provided are of the disposable type. Heating
devices limited to this use need not be vented.
4. Food establishments in which all food is to be sold in
sealed packages, and in which there is to be no prepar-
ing or packaging of food shall comply with all appli-
cable food establishment regulations. The Certificate
of Occupancy shall state "Packaged Food Only."
6302.2 Ceiling heights. Every room shall have a ceiling height
of not less than 8 feet (2438 mm) between the finished floor and
the finished ceiling.
Exceptions:
1 . Toilet rooms may have a ceiling height of not less
than 7 feet 6 inches (2286 mm).
2. Refrigerated cold storage rooms are exempted from
this ceiling height requirement.
6302.3 Special ventilation. A mechanical exhaust ventilation
system capable of effectively removing cooking odors, smoke,
steam, grease and vapors shall be provided at or above cooking
equipment, such as ranges, griddles, ovens, deep fat fryers, bar-
becues and rotisseries.
All hoods, ducts, fans and other devices provided to ventilate
the cooking areas of commercial food preparation equipment
in commercial food establishments shall be installed as
required by and in compliance with the provisions of the Los
Angeles Mechanical Code. Rooms in which exhaust systems
are installed shall be provided with acceptable air inlets to
admit at least as much air as is exhausted by these systems.
Ducts penetrating a ceiling or floor shall be enclosed in a
shaft enclosure conforming to the requirements of Section 707
of this Code. Where a shaft enclosure is not required by Section
707 of this Code, ducts that convey grease vapors shall be
enclosed in a 1-hour fire-resistive shaft. The shaft shall be sepa-
rated from the duct by a minimum 3-inch (76 mm) air space
vented to the outside air.
6302.4 Toilet rooms and vestibules. Toilet rooms and vesti-
bules for pubUc or employees shall conform to the following
standards:
1 . Toilet rooms required. At least one toilet room shall be
provided for every food establishment. Adequate sepa-
rate toilet facilities for each sex shall be provided where
the number of employees is four or more. In or immedi-
ately adjacent to ev^ry toilet room required hereunder
there shall be installed one-half as many lavatories as
there are water closets and urinals. Each lavatory shall be
equipped with running hot and cold water.
Each place of business selling beer, wine, or liquor to
be consumed on the premises shall be provided with sep-
arate toilet rooms for each sex, which also are readily
available to the customers and patrons. These toilet
rooms shall contain at least one water closet and lava-
tory, and at least one urinal for men.
2. Location. Toilet rooms shall be located on the premises
of the food establishment. Toilet rooms for public use
shall be readily accessible to customers. Toilet rooms
shall be separated from other portions of the establish-
ment by a tight-fitting, self-closing door.
Additional lavatories or equivalent hand-washing
facilities shall be provided in all food preparation areas
where the lavatories required in Item 1 are not conve-
niently located on the same floor and in or adjacent to the
food preparation areas.
3. Privacy. Toilet rooms shall be so arranged or equipped
with view screens as to protect users of toilets and urinals
from view from outside the room when the door to the
toilet room is open. Entrances to the toilet rooms for dif-
ferent sexes shall be properly separated by a space of at
least 10 feet (3048 mm) or by view screens.
4. Dimensions. Toilet rooms shall have dimensions and
area as required in Chapter 11.
6302.5 Dressing rooms. Dressing rooms for employees to
store their clothes shall be provided for all restaurants and food
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2008 CITY OF LOS ANGELES BUILDING CODE
617
ADDITDONAL PROVJSIONS FOR SPECIRC USES
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establishments. Separate dressing rooms shall be provided for
each sex where the number of employees is four or more.
Dressing rooms shall be separated from food storage rooms
and food preparation areas and shall be provided with
self-closing doors.
Exceptioe: Individual lockers to store clothes will be
accepted in lieu of dressing facilities where there are fewer
than four employees on any shift.
6302.6 Garbage rooms. Restaurants with a seating capacity of
50 or more patrons shall be provided with a room or enclosed
space for the keeping of garbage containers. The room shall
have Portland cement plaster, fireclay tile, ceramic tile or
equally durable waterproof walls to a height of at least 6 feet
(1829 mm) above the floor. Doors and windows of such rooms
shall be tight fitting and self-closing and all exterior openings
shall be screened. Each such room shall be equipped with a
hose or other suitable garbage can washing device connected to
hot and cold running water and the floor shall slope to a drain
and comply the requirements of the Los Angeles County
Health Department.
Exception: Such garbage rooms need not be provided at
places maintaining an approved device for discharging gar-
bage to the sewer system.
]I2.7 Eat protection. Every food establishment shall be
completely surrounded by a continuous exterior foundation
wall not less than 12 inches (305 mm) below grade.
SECTION 6303
Every service station located within 660 feet (201 168 mm) of
an accessible right-of-way of any interstate or primary high-
way, shall provide, during business hours, public restrooms for
use by its customers. The public restroom shall not be tempo-
rary or portable but shall be permanent and shall include sepa-
rate facilities for men and women, each with toilets and sinks
suitable for use by the handicapped in accordance with Title 24
of the California Code of Regulations and shall be maintained
in a clean and sanitary manner. This section shall not apply to
service stations which are fully operational prior to January 1,
1990.
SECTION 6304
RESIDEMTIAL USES
.1 Interior doors. In any residential building, every inte-
rior door in a doorway through which occupants pass shall have
a minimum width of 32 inches (813 mm).
Exception: The provisions of this section shall not apply to
doors located in shower compartment and bathtub enclo-
sures.
L2 Interior iltammation. All recreation or service rooms
accessory to apartment houses shall be provided with an incan-
descent light bulb (minimum of 60 watts) or other artificial
light at a maximum height of 8 feet (2438 mm) and shall pro-
vide have a minimum average surface illumination of 0.2
footcandles (2.15 lux) at floor level. Where, in any specific
case, different sections of the Los Angeles Municipal Code
specify different requirements, the most restrictive shall gov-
ern.
Exception: Recreation or service rooms accessory to con-
dominiums which comply with Article 2.9 (condominiums)
of Chapter I of the Los Angeles Municipal Code.
6304.3 Additional requirements for installation of bars,
grills, grates or similar devices. In addition to the require-
ments of Section 1026 of this Code, all bars, grills, grates or
similar devices shall comply with the following:
1 . A permit is obtained from the Department of Building
and Safety and a fee is paid as required in Section 107.4.5
of this Code. Any permit so issued shall be valid for a
period of 90 days from its issuance. The Department may
allow a "certified installer" to be used, in lieu of obtain-
ing a permit, in accordance with Section 1716.
2. Any person who willfully or knowingly, with the intent
to deceive, makes a false statement or representation, or
knowingly fails to disclose a material fact in any docu-
mentation required by the Department to ascertain facts
relative to this section. Section 107.4.5 or to Section
1716 of this Code, including any oral or written evidence
presented, shall be guilty of a misdemeanor.
SECTION 6305
PARKING GARAGES SERVING RESIDENTIAL USES
6305.1 Light. All parking garages serving dwelling units or
guest rooms shall be provided with an incandescent light bulb
(minimum of 60 watts) or other artificial light at a maximum
height of 8 feet (2438 mm) and shall provide a minimum aver-
age surface illumination of 0.2 footcandles (2.15 lux) at floor
level. Where, in any specific case, different sections of the Los
Angeles Municipal Code specify different requirements, the
most restrictive shall govern.
6305.2 Exterior illumination. All parking garages serving
dwelling units or guest rooms shall be provided with an incan-
descent light bulb (minimum of 60 watts) or other artificial
light at a maximum height of eight feet (2438 mm) and shall
provide have a minimum average surface illumination of 0.2
footcandles (2.15 lux), however, exterior lighting that is
brighter than 2 footcandles (21.5 lux) and affecting adjacent
residential properties shall be activated by motion sensors for a
period of not to exceed 20 minutes.
Exterior lighting shall be provided for areas accessory to
apartment houses, such as driveways, side yards, walkways,
recreation areas and similar locations.
Where, in any specific case, different sections of the Los
Angeles Municipal Code specify different requirements, the
most restrictive shall govern.
SECTION 6306
ANTIGRAFFBTI FINISH TO EXTERIOR WALLS
In all buildings, except detached one- and two-family dwell-
ings and their accessory buildings, the first 9 feet (2743 mm),
measured from grade, of exterior walls and doors shall be built
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2008 CBTY OF LOS ANGELES BUILDING CODE
ADDITIONAL PROVISIONS FOR SPECIFIC USES
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and maintained with a graffiti-resistant finish consisting of
either a hard, smooth impermeable surface such as ceramic tile,
baked enamel or a renewable coating of an approved antigraf-
fiti material or a combination of both.
SECTION 6307
SHOWER AND LOCKER FACILITIES
.1 Shower and locker facilities for office commercial,
business and professional uses. For office commercial, busi-
ness and professional uses in the C and M zones, and for build-
ings owned by the City of Los Angeles and used by the City for
government purposes, regardless of zone, shower facilities
shall be available and accessible for all employees in new
buildings and in existing buildings, when additions are made
thereto, as follows:
1 . For new buildings and additions to existing building with
at least 50,000 square feet (4645 m^) of floor area, one
shower for each gender.
2. For new buildings and additions to existing buildings
with 150,000 square feet (13 935 m^) to less than
250,000 square feet (23 225 m^) of floor area, two show-
ers for each gender.
3. For new buildings and additions to existing buildings
with 250,000 square feet (23 225 m^) of floor area or
more, one additional shower for each gender for each
increment of 100,000 square feet (9290 m^) of floor area
or portion thereof.
For the uses specified above, where bicycle parking spaces
are required pursuant to Section 12.21-AI6 of the Los Angeles
Municipal Code, one locker facility shall be provided for each
required bicycle parking space. Locker facilities required by
this section shall be located to permit access by either gender.
^2 Shower and locker facilities for industrial uses. For
industrial uses in the C and M zones, shower facilities shall be
available and accessible for all employees in new buildings and
in existing buildings, when additions are made thereto, as fol-
lows:
For new buildings and additions to existing building with
50,000 square feet (4645 m^) of floor area and greater, one
shower for each gender.
For the uses specified above, where bicycle parking spaces
are required pursuant to Section 12.21-A16 of the Los Angeles
Municipal Code, one locker facility shall be provided for each
required bicycle parking space. Locker facilities required by
this section shall be located to permit access by either gender.
.3 Shower and locker facilities for retail and other
commercial uses. For retail and other commercial uses in the C
and M zones not specified herein, employee shower facilities
shall be available and accessible for all employees in new
buildings and in existing buildings, when additions are made
thereto, as follows:
1 . For new buildings and additions to existing building with
at least 100,000 square feet (9290 m^) to less than
300,000 square feet (27 870 m^) of floor area, one
shower for each gender.
2. For new buildings and additions to existing buildings
with 300,000 square feet (27 870 m^) of floor area or
greater, one additional shower for each gender for each
additional increment of 200,000 square feet (1 8 580 m^)
of floor area or portion thereof.
For the uses specified above, where bicycle parking spaces
are required pursuant to Section 12.21-A16 of the Los Angeles
Municipal Code, one locker facility shall be provided for each
required bicycle parking space. Locker facilities required by
this section shall be located to permit access by either gender.
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CHAPTER 67
SECURITY PROVISIONS
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SECTION 6701
PURPOSE
The purpose of this chapter is to provide a nominal level of
resistance to unlawful entry of buildings by establishing mini-
mum standards of construction and hardware for the closure of
openings regulated by this chapter.
SECTION 6702
GENERAL
In every Group B, F, M, S and R occupancy, the openings regu-
lated by this chapter shall be completely secured in accordance
with the provisions specified herein.
Exceptions: The requirements of this chapter shall not
apply to:
1 . Detached buildings which are accessory to Group R,
Division 3 occupancies.
2. Group B, F, M, S occupancies which, by the nature of
their operation, are unenclosed.
3. Group B, F, M, S occupancies where the owner sub-
mits written notice to the Department of intent to sub-
stitute security personnel and/or site security
installations in lieu of requirements of this chapter of
this Code. Such exemption shall be subject to the con-
currence of the Department and shall be one of the
conditions upon which the Certificate of Occupancy
is issued.
SECTION 6703
LIMITATIONS
The provisions of this chapter shall not be applicable to latch-
ing or locking devices on exit doors to the extent that the provi-
sions of this chapter are contrary to the provisions of Section
1026 or chapter 10 of this Code, nor shall the regulations of this
chapter be construed to waive any other provision of this Code.
No person shall sell, offer for sale, advertise, display for sale
or install any metal bars, grilles, grates, security roll-down
shutters or similar devices manufactured or installed to pre-
clude human entry through windows and exterior doors with-
out a label attached to each product, printed in at least ten-point
type and that reads as follows: "A building permit is required in
most cases for the installation of this product. If this product is
installed in a sleeping room, unless exempt by the provisions of
Section 1026 of this Code, the device must be equipped with a
quick-release latch openable from inside and the dwelling unit
provided with an approved smoke detector."
SECTION 6704
ALTERNATE SECURITY PROVISIONS
The provisions of this chapter are not intended to prevent the
use of any device, hardware, or method of construction, not
specifically prescribed in this chapter, when such alternate pro-
vides equivalent security and is approved by the Department.
SECTION 6705
DEFINITIONS
For the purpose of this chapter, certain terms are defined as fol-
lows:
CYLINDER GUARD. A ring surrounding the exposed por-
tion of the lock cylinder, or any other device, which is fastened
as to protect the cylinder from wrenching, prying, cutting +or
pulling by attack tools. The ring shall be made from steel or
brass and shall have a minimum taper of 15 degrees (0.26 rad).
DEADLOCKING LATCH. A latch in which the latch bolt is
positively held in the projected position by a guard bolt, a
plunger or an auxiliary mechanism.
DEADBOLT. A bolt which has no automatic spring action and
is operated by a key cylinder, thumb-turn, or lever, and is held
fast when in the projected position.
ENCLOSING PARTITION. A partition extending the full
height of the story to the floor or roof above separating, tenant
spaces.
LATCH. A device for automatically retaining a door, upon its
closing, in a closed position.
SECURITY OPENING. An opening in a wall, partition, or
roof when such opening occurs in any of the following loca-
tions:
1 . In an exterior wall and less than 16 feet (4879 mm) above
the grade of any adjoining yard, court, passageway, pub-
lic way, walk, breezeway, patio, planter porch or similar
area.
2. In an exterior wall and less than 1 6 feet (4879 mm) above
the surface of any adjoining roof, balcony, landing, stair
tread, platform, or similar structure when that surface is
accessible to the public or another tenant or when any
portion of such surface is itself less than 16 feet (4879
mm) above an accessible grade.
3. In the enclosing partitions of a dwelling unit, private
garage, guest room or single-tenant nonresidential area.
4. In a roof when any portion of such roof is less than 1 6 feet
(4879 mm) above an accessible grade or surface accessi-
ble by another tenant or the public.
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2008 CITY OF LOS ANGELES BUILDING CODE
621
SECURITY PROVISiONS
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SECTION 6706
ENTRY VISION
In residential occupancies, all entry doors to dwelling units or
guest rooms shall be arranged so that the occupant has a view of
the area immediately outside the door without opening the
door. Such view may be provided by a door viewer, through
windows located in the vicinity of the door or through view
ports in the door or adjoining wall. Such windows or view ports
shall be constructed in compliance with the provisions of Sec-
tion 6713.
SECTION 6707
APPURTENANT ACCESS
Buildings located within 8 feet (2438 mm) of utiUty poles or
similar structures which could otherwise be used to gain access
to the building's roof, balcony or similar surfaces shall have
access to such building surfaces protected by screens, barri-
cades or fences made of materials which preclude human
climbing. Such protection shall extend to where the surfaces
are more than 8 feet (2438 mm) from the pole or access struc-
ture.
SECTION 6708
DOORS - GENERAL
Every door in a security opening shall be constructed, installed
and secured as set forth in Sections 6709, 6710, 671 1 and 6712.
Glazing in doors shall comply with Section 6713.
Every door in a security opening for an apartment house
shall be provided with an incandescent light bulb (minimum of
60 watts) at a maximum height of 8 feet (2438 mm) or lights on
the exterior side of the unit that have a minimum surface illumi-
nation of 0.2 footcandles (2.15 lux) at the security opening.
Where, in any specific case, different sections of the Los
Angeles Municipal Code specify different requirements, the
most restrictive shall govern.
SECTION 6709
SWINGING DOORS
J.l Swinging wood doors which are openable from the
inside without the use of a key shall be of one of the following
constructions or shall be of a construction having equivalent
forced entry resistance:
1. Solid core doors not less than P/g inches (1.38 mm) in
thickness.
2. Wood panel type door with panels fabricated of lumber
not less than Vj^-inch thickness, provided shaped por-
tions of the panels are not less than V4-inch (6 mm) thick.
Individual panels shall not exceed 300 square inches (28
m^) in area. Stiles and rails shall be of solid lumber with
overall dimensions of not less than IVg inches (1.38 mm)
in thickness and 3 inches (76 mm) in width. MuUions
shall be considered a part of adjacent panels unless sized
as required herein for stiles and rails, except muUions not
over 1 8 inches (457 mm) long may have an overall width
of not less than two inches. Carved areas shall have a
thickness of not less than Vg-inches (0.38 mm).
Dimensional tolerances published in recognized indus-
try standards may be utilized.
3. Hollow core doors or doors less than IVg inches (1.38
mm) in thickness either of which are covered on the
inside face with 16 gauge sheet metal attached with
screws at 6 inches (152 mm) maximum centers around
the perimeter. Glazing in doors shall be as set forth in
Section 6713.
6709.2 A single swinging door the active leaf of a pair of doors,
and the bottom leaf of Dutch doors shall be equipped with a
deadbolt and deadlocking latch. The deadbolt and latch may be
activated by one lock or by individual locks. Deadbolts shall
contain hardened inserts to repel cutting tools. The lock or
locks shall be key-operated from the exterior side of the door
and openable from the interior side by a device which does not
require a key, special knowledge or special effort to operate.
Exceptions:
1. The latch may be omitted from doors in Group B, F,
M, S occupancies.
2. In other than residential buildings, locks may be key
operated on the inside when not prohibited by the pro-
visions of Chapter 10.
3. A swinging door greater than 5 feet (127 mm) in
width may be secured as set forth in Section 671 1.
A straight deadbolt shall have a minimum throw of 1 inch
(25 mm) and an embedment of not less than ^/g inch (0.63 mm)
into the holding device receiving the projected bolt. A
hook-shaped or an expanding-lug deadbolt shall have a mini-
mum throw of V4-inch (19 mm). All deadbolts of locks which
automatically activate two or more deadbolts shall embed at
least Vj-inch (13 mm) into the holding devices receiving the
projected bolts.
6709.3 The inactive leaf of a pair of doors and the upper leaf of
Dutch doors shall be equipped with a deadbolt or deadbolts as
set forth in Section 6709.2.
Exceptions:
1. The deadbolt or bolts need not be key operated, but
shall not be otherwise activated from the exterior side
of the door.
2. The deadbolt or bolts may be engaged or disengaged
automatically with the deadbolt or by another device
on either the active leaf or the lower leaf.
uP^
tom of the leaf which embed a minimum of Vj-inch
(13 mm) into the receiving device may be used when
not prohibited by Chapter 10.
6709.4 Door stops of in-swinging doors shall be of one-piece
construction with the jamb, or joined by rabbet to the jamb.
6709.5 All pin-type hinges which are accessible from outside
the secured area when the door is closed shall have
nonremovable hinge pins. In addition, such hinges shall have
jamb studs which project through both hinge leaves and pre-
vent removal of the door if the pin is removed from the hinge.
Jamb studs shall be not less than V4-inch (6 mm)-diameter steel
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2008 CITY OF LOS ANGELES BUILDING CODE
SECURITY PROVISIONS
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and shall project into the door and jamb not less than 74 inch (6
mm).
Exception: Jamb studs are not required for hinges which
are shaped to prevent removal of the door if the hinge pin is
removed.
6709.6 Cylinder guards shall be installed on all mortise or
rim-type cylinder locks whenever the cylinder projects beyond
the face of the door or is otherwise accessible to gripping tools.
«
^7 In wood construction, the metal strike plate for latches
shall be secured to the jamb with screws and the holding device
for projecting dead bolts shall be secured to the jamb and wall
framing with at least two screws not less than 272 inches (64
mm) in length which penetrate the wall framing. In aluminum
construction, the strike plate and dead bolt holding device shall
be secured in an area of reinforced heavy gauge jamb material.
SECTION 6710
SLBDING GLASS DOORS
Sliding glass doors shall be equipped with locking devices and
shall be so constructed and installed that they remain intact and
engaged when subjected to the tests specified in Section
6717.1. Cylinder guards shall be installed on all mortise or
rim-type cylinder locks whenever the cylinder projects beyond
the face of the door or is otherwise accessible to gripping tools.
A device shall be installed in the upper channel of the moving
panel to prohibit raising and removal of the moving panel from
the track while in the closed position.
SECTION 6711
OVERHEAD AND SLIDING DOORS
Metal or wooden overhead and sliding doors shall be secured
with a cylinder lock, padlock with a minimum ^j-inch (0,28
mm) diameter hardened steel shackle bolted, hardened steel
hasps, metal slide board, bolt or equivalent device unless
secured by an electrical power operation.
Cylinder guards shall be installed on all mortise or rim-type
cylinder locks whenever the cylinder projects beyond the face
of the door or is otherwise accessible to gripping tools.
SECTION 6712
WIETAL ACCORDION-GRATE OR GRILLE-TYPE
DOORS
Metal accordion-grate or grille-type doors shall be equipped
with metal guides at the top and bottom and cylinder locks or
padlocks having minimum %2-inch (0.28 mm) hardened steel
shackles with hardened steel hasps, bolted in place. Cylinder
guards shall be installed on all mortise or rim-type cylinder
locks whenever the cylinder projects beyond the face of the
door or is otherwise accessible to gripping tools.
SECTION 6713
GLAZED OPENING - GENERAL
All windows, skylights, glazing in doors or other glazing in
security openings shall conform to this section and to the appli-
cable requirements of Sections 6714, 6715 and 6716.
Glazed openings within 40 inches (1016 mm) of the required
locking device of the door, when the door is in the closed and
locked position and when the door is openable from the inside
without the use of a key, shall be fully tempered glass, con-
forming to the provisions of Section 2406, or approved bur-
glary-resistant material, or shall be protected by metal bars,
screens or grilles having a pattern such that the maximum
dimension of any opening does not exceed 2 inches (5 1 mm).
Exception: The provisions of this section shall not apply to
sliding glass doors which conform to the provisions of Sec-
tion 67 10 or to view ports or windows which do not exceed 2
inches (5 1 mm) in their greatest dimension.
SECTION 6714
GLAZING
In Group B, F, M, S occupancies, panes of glazing with at least
one dimension greater than six inches, but less than 48 inches
(1219 mm), shall be constructed of fully tempered glass or
approved burglary-resistant material or shall be protected by
metal bars or grilles which are constructed to preclude human
entry. Such bars or grilles shall have a pattern such that at least
one dimension of any opening shall be no greater than 6 inches
(152 mm).
SECTION 6715
WINDOWS
6715.1 Sliding glass windows shall be provided with locking
devices and shall be so constructed and installed that they
remain intact and engaged when subjected to the tests specified
in Section 67 17.2. A device shall be installed in the upper chan-
nel of the moving panel to prohibit the raising and removal of
the moving panel from the track while in the closed or partially
open position.
6715.2 Other openable windows shall be provided with sub-
stantial locking devices which render the building as secure as
the devices required by this section. In Group B, F, M, S occu-
pancies, such devices shall be glide bars, bolts, cross bars
and/or padlocks with minimum Vjj-inch (0.28 mm) hardened
steel shackles and bolted, hardened steel hasps.
6715.3 Special. Louvered windows shall be protected by metal
bars or grilles which are constructed to preclude human entry.
Such bars or grilles shall have a pattern such that no less than
one dimension of any opening shall be 6 inches (152 mm) or
less.
6715.4 Any release for metal bars, grilles, grates or similar
devices constructed to preclude human entry that are installed
shall be located on the inside of the adjacent room and at least
24 inches (610 mm) from the closest opening through such
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2008 CITY OF LOS ANGELES BUILDING CODE
623
SECURITY PROVISIONS
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metal bars, grilles, grates or similar devices that exceed 2
inches (5 1 mm) in any dimension.
Exception: Metal bars, grilles, grates or similar devices
may be padlocked in position where such padlocks or simi-
lar devices are not prohibited by law.
^PE
SECTION 6716
S OTHER THAN DOORS OR GLAZED
OPENINGS
6716ol Security openings other than doors or glazed openings
shall be protected in accordance with the requirements of this
section.
6716.2 Hatchway covers of less than lV4-inch (44 mm) thick
solid wood construction shall be covered on the inside with
16-gauge sheet metal attached by screws around the perimeter
spaced at 6-inch (152 mm) maximum centers.
6716.3 Hatchway covers shall be secured from the inside with
slide bars, slide bolts, and/or padlocks with hardened steel
shackles. Hasps shall be hardened steel and bolted.
6716.4 Outside pin-type hinges shall be provided with
non-removable pins.
6716.5 Openings within 40 inches (1016 mm) of the required
locking device of the door when said door is in the closed and
locked position and when said door is openable without the use
of a key shall not exceed two inches in their greatest dimension
or shall be protected by metal bars or grilles having a pattern
such that the openings of which do not exceed 2 inches (5 1
mm) in the greatest dimension.
6716.6 All other openings shall be protected by metal bars or
grilles constructed to preclude human entry. Such bars or
grilles shall have a pattern such that no less than one dimension
of any opening shall be 6 inches (152 mm) or less.
Exception: Openings which are more than 40 inches (1016
mm) from the required locking device of a door in the closed
and locked position when the door is openable from the
inside without the use of a key, and which do not exceed 96
square inches (8.91 m^) in area, with no less than one dimen-
sion thereof being 6 inches (152 mm) or less.
SECTION 6717
TESTS - GENERAL
Doors, windows, and similar closures of security openings reg-
ulated by the provisions of this chapter, including the frames,
jambs, hardware and locking devices of such closures, shall be
shown to satisfactorily pass the tests specified in this chapter.
The tests shall be performed by an approved testing laboratory
on the units as installed at the jobsite or installed in test assem-
blies constructed according to the manufacturer's details. Each
typical job installation shall be tested or the units shall be con-
structed and installed in conformance to a general approval
issued by the Department.
6717.1 Sliding glass doors. Panels shall be closed and locked.
Tests shall be performed in the following order:
1 . Test A. With the panels in the normal position, a concen-
trated load of 300 pounds ( 1 320 N) shall be applied sepa-
rately to each vertical pull stile incorporating a locking
device at a point on the stile within 6 inches (152 mm) of
the locking device in the direction parallel to the plane of
glass that would tend to open the door.
2. Test B. Repeat Test A while simultaneously adding a
concentrated load of 150 pounds (660 N) to the same
area of the same stile in a direction perpendicular to the
plane of glass toward the interior side of the door.
3. Test C. Repeat Test B with 150-pound (660 N) force in
the reverse direction toward the exterior side of the door.
4. Tests D, E and F. Repeat Tests A, B and C with the mov-
able panel lifted upwards to its full limit within the con-
fines of the door frame.
5 . Moveable panels shall not be rendered easily openable or
removable from the frame during or after the tests or the
panel shall have failed the test.
6717.2 Sliding glass windows. Sash shall be closed and
locked. Tests shall be performed in the following order:
1 . Test A. With the sliding sash in the normal position, a
concentrated load of 150 pounds (660 N) shallbe applied
separately to each sash member incorporating a locking
device at a point on the sash member within six inches of
the locking device in the direction parallel to the plane of
glass that would tend to open the window.
2. Test B. Repeat Test A while simultaneously adding a
concentrated load of 75 pounds (330 N) to the same area
of the same sash member in the direction perpendicular
to the plane of glass toward the interior side of the win-
dow.
3. Test C. Repeat Test B with the 75-pound (330 N) force
in the reversed direction toward the exterior side of the
window.
4. Tests D, E and F, Repeat Tests A, B and C with the mov-
able sash lifted upwards to its full limit within the con-
fines of the window frame.
5. Movable panels shall not be rendered easily openable or
removable from the frame during or after the tests or the
panel shall have failed the test.
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2008 CITY OF LOS ANGELES BUILDING CODE
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CHAPTER 70
GRADING, EXCAVAtlONS AND FILLS
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SECTION 7001
PURPOSE
The purpose of this chapter is to safeguard Hfe, hmb, property
and the pubUc welfare by regulating grading on private prop-
erty.
SECTION 7002
SCOPE
All grading shall be performed in accordance with the provi-
sions of this chapter and with rules and regulations as estab-
lished by the Superintendent of Building, and shall be in
accordance with the zoning, private street and Chapter of land
regulations contained in Chapter I of the Los Angeles Munici-
pal Code, and the requirements of the approved general plan
for the area in which the grading is to be done.
SECTION 7003
DEFINITIONS
For the purposes of this chapter, the definitions listed hereun-
der shall be construed as specified in this section.
APPROVAL, shall mean the proposed work or completed
work conforms to this chapter to the satisfaction of the Superin-
tendent of Building.
AS-GRADED. The extent of surface conditions on comple-
tion of grading.
BEDROCK. In-place sohd rock.
BENCH. A relatively level step excavated into earth material
on which fill is to be placed.
BORROW. Earth material acquired from an on-site or off-site
location for use in grading on a site.
CIVIL ENGINEER. A professional engineer registered in the
state to practice in the field of civil engineering works.
CIVIL ENGINEERING. The application of the knowledge
of the forces of nature, principles of mechanics and the proper-
ties of materials to the evaluation, design and construction of
civil works.
COMPACTION. The densification of a fill by mechanical
means.
EARTH MATERIAL. Any rock, natural soil, fill or combina-
tion thereof.
ENGINEERING GEOLOGIST. A geologist duly licensed
by the State of California and experienced and knowledgeable
in engineering geology.
ENGINEERING GEOLOGY. The appUcation of geologic
knowledge and principles in the investigation and evaluation of
naturally occurring rock and soil for use in the design of civil
engineering works.
EROSION. The wearing away of the ground surface as a result
of the movement of wind, water or ice.
EXCAVATION. The mechanical removal of earth material.
FILL. A deposit of earth material placed by artificial means.
GEOTECHNICAL ENGINEER. See "Soils engineer."
GRADE. The vertical location of the ground surface.
Existing Grade. The grade prior to grading.
Finish Grade. The final grade of the site which conforms to
the approved plan.
Rough Grade. The stage at which the grade approximately
conforms to the approved plan.
GRADING. Any excavating or filling or combination thereof.
HILLSIDE AREAS. Any land designated as a Hillside Area
based on the latest Bureau of Engineering Basic Grid Map No.
A- 13372 and made part of this section.
KEY. A designed compacted fill placed in a trench excavated
in earth material beneath the toe of a proposed fill slope.
PROFESSIONAL INSPECTION. The inspection required
by this Code to be performed by the civil engineer, soils engi-
neer or engineering geologist. Such inspections include that
performed by persons supervised by such engineers or geolo-
gists and shall be sufficient to form an opinion relating to the
conduct of the work.
ROCK. Any consolidated or coherent and relatively hard natu-
ral formed mass of mineral material.
SEEPAGE. The flow of water through earth material caused
by gravitational forces.
SITE. Any lot or parcel of land or contiguous combination
thereof, under the same ownership, where grading is per-
formed or permitted.
SLOPE. An inclined ground surface the inclination of which is
expressed as a ratio of horizontal distance to vertical distance.
Slope greater than 10% shall be considered as a sloping sur-
face.
SLOPE FAILURE CLASS I. Involves bedrock, and a com-
bined geologic and geotechnical report that need to be submit-
ted to address its- cause and to provide recommended repair
methods.
SLOPE FAILURE, CLASS 11. Involves soil, and a
geotechnical report needs to be submitted to address its cause
and to provide recommended repair methods.
SLOPE FAILURE, CLASS HI. Involves surficial problems,
and unless determined as necessary by inspection, neither a
geologic nor a geotechnical report is required prior to the
repair.
SOIL. Naturally occurring superficial deposits overlying bed-
rock.
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2008 CITY OF LOS ANGELES BUILDING CODE
625
GRADING, EXCAVATIONS AND FILLS
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SOILS ENGINEER (GEOTECHNICAL ENGINEER). A
civil engineer duly licensed by the vState of California who is
experienced in the application of the principles of soil mechan-
ics in the investigation, evaluation and design of civil works
involving the use of earth materials and who is approved by the
Department, or a geotechnical engineer licensed by the State of
California.
SOILS ENGINEERING (GEOTECHNICAL ENGI-
NEERING). The application of the principles of soils mechan-
ics in the investigation, evaluation and design of civil
engineering works involving the use of earth materials and the
inspection or testing of the construction thereof.
TERRACE. A relatively level step constructed in the face of a
graded slope surface for drainage and maintenance purposes.
SECTION 7004
GRADING DESIGNATION
Grading in designated hillside areas or in excess of 5,000 cubic
yards (3825 m^) of either cut or fill, or a combination thereof,
shall be performed in accordance with the approved grading
plan prepared by a civil engineer, and shall be designated as
"engineered grading." Grading involving less than 5,000 cubic
yards (3825 m^) in a non hillside area shall be designated "regu-
lar grading" unless the permittee chooses to have the grading
performed as engineered grading, or the Superintendent of
Building determines that special conditions or unusual hazards
exist, in which case grading shall conform to the requirements
for engineered grading.
SECTION 7005
GENERAL REQUIREMENTS
7005.1 Hillside areas. No person shall conduct any grading
operation for other than building site development in hillside
areas.
Exception: Grading that is not connected with building site
development may be conducted in hillside areas when the
Department finds that such work enhances the physical sta-
bilization of property, or is not detrimental to public health,
safety or welfare, and conforms with the approved master
plan for the area. A tentative tract or chapter of land map
shall also not be required for such exempt grading.
7005.2 Building foundations. Building foundations and tem-
porary shoring shall be designed and constructed as specified
in Chapter 18 of this Code.
)5.3 Removal of ground cover. The existing vegetative
ground cover of any watershed in any hillside area shall not be
destroyed, removed or damaged except pursuant to lawful
grading, use or occupancy of the property. Except for oak trees
regulated by the provisions of Article 7 of Chapter I or Article 6
of Chapter IV of the Los Angeles Municipal Code, removal of
trees and shrubbery will be allowed where such work will not
disturb the turf, sod or other existing vegetative ground cover.
Whenever such ground cover is removed or damaged pursuant
to a grading permit, the permittee shall restore and maintain
approved ground cover, or shall accompUsh such other erosion
control protection as is required. Such erosion control shall be
completed within 30 days after cessation of the grading work
where no valid building permit is in effect for the site.
7005.4 Exceptions for emergencies. The provisions of this
Code shall be temporarily waived for any grading operation
which is conducted during a period of emergency disaster and
which is directly connected with or related to relief of condi-
tions caused by such emergency or disaster. This emergency
exception shall not be construed to waive compliance with the
provisions of this Code subsequent to the emergency or disas-
ter.
7005.5 Cemetery interment sites. Cemetery interment sites
shall not be located on slopes steeper than one unit vertical in
three units horizontal (33.3-percent slope), provided further,
where interment sites are located adjacent to slopes steeper
than one unit vertical in two units horizontal (50-percent
slope), the site shall not be located closer to the face of such
slopes than a one unit vertical in two units horizontal
(50-percent slope) imaginary plane projected up from the toe
of the slope.
Exception: Encroachment of the interment sites beyond the
imaginary plane may be permitted, provided it can be shown
to the Department's satisfaction through investigation and
report by both a soils engineer and an engineering geologist
that the underlying bedrock and the materials on the slope
have strength characteristics sufficient to provide a stable
soil with a minimum factor of safety of not less than 1.5
static loads.
No permit shall be required for preparing an area for plant-
ing of lawn or landscaping in a cemetery, provided the resulting
maximum slope of one unit vertical in three units horizontal
(33.3-percent slope) is maintained and there is no change to the
existing drainage pattern.
The Department may waive or reduce the requirements of
Sections 7012 and 7013 of this Code for planting, irrigation,
erosion control and drainage devices for portions of a cemetery
graded or to be graded with a maximum slope of one unit verti-
cal in three units horizontal (33.3-percent slope) if the appli-
cant shows to the Department's satisfaction that slope erosion
and drainage will be controlled entirely within the boundaries
of the property which is dedicated, used or to be used for ceme-
tery purposes.
7005.6 Maintenance of protective devices. The owner of any
property on which an excavation or fill has been made pursuant
to a permit granted under Chapter 1 of this Code, or any other
person or agent in control of such property, shall maintain in
good condition and repair all retaining walls, cribbing, drain-
age structures and other protective devices, on said property, as
shown on the approved plans and specifications submitted with
the application for a permit.
7005.7 Hazardous soil and earth conditions. Whenever the
Department determines by inspection that any land or any
existing excavation or fills have, from any cause, become a
menace to life or limb, or endangers public or private property,
or affects the safety, usability or stability of public or private
property, the owner or other person in legal control of the prop-
erty concerned shall, upon receipt of a written notice thereof
from the Department, correct such condition in accordance
with the provisions of this chapter and the requirements and
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626
2008 CITY OF LOS ANGELES BUILDING CODE
GRADING, EXCAVATIONS AND FILLS
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conditions set forth in the notice so as to eliminate the hazard-
ous condition. The owner or other person in legal control of the
property shall immediately comply with the provisions set
forth in the notice and shall complete the work within 180 days
from the date of the notice imless a shorter period of time for
completion has been specified in the notice in which case the
owner shall comply with the shorter period of time. Upon writ-
ten application therefor, the Department may approve the
request for an extension of time to complete the work required
by notice.
If the above condition is not eliminated within the specified
time period, the Department shall file with the Office of the
County Recorder a certificate stating that the property is sub-
standard and that the owner thereof has been so notified. The
certificate shall specify the conditions creating the substandard
classification.
When the above conditions have been corrected to the
Department's satisfaction, upon receiving a $60 fee from the
owner or his or her agent, the Department shall file with the
Office of the County Recorder a certificate specifying that the
conditions creating the substandard classification have been
corrected and that the property is no longer considered substan-
dard.
7005.8 Violations.
7005.8.1 General. No person shall fail, refuse or neglect to
comply with the following provisions:
1. All orders issued by the Department pursuant to the
provisions of this chapter;
2. All conditions imposed on grading permits pursuant
to the provisions of this chapter; and
3. All rules and regulations of the Department with
respect to grading which are in effect at the time the
grading permit is issued.
Any person violating the above shall be guilty of a misde-
meanor.
7005.8.2 Noncompliance fee. See Section 98.0411 of the
Los Angeles Municipal Code.
7005.9 Nonconforming sites. All additions to existing build-
ings shall conform to the provisions of this Code.
Whenever the principal building on a site is added to, altered
or repaired in excess of 50 percent of its replacement value, the
entire site shall be made to conform with the provisions of this
Chapter and Chapter 18.
SECTION 7006
CONDITIONS PRECEDENT TO ISSUING A
GRADING PERMIT
7006.1 Plans and specifications. Application for a grading
permit shall be accompanied by plans and specifications pre-
pared and signed by an individual licensed by the State to pre-
pare such documents. Plans shall be drawn to appropriate scale
upon substantial paper or cloth and shall be of sufficient clarity
to indicate the nature and extent of the work proposed and show
in detail that the plans will conform to the provisions of this
Code and all relevant laws, ordinances, rules and regulations.
The first sheet of each set of plans shall give the location of
the work, the name and address of the owner and the person by
whom they were prepared.
The plans shall include, but not be limited to, the following
information:
1. General vicinity of the proposed site.
2. Property limits and accurate contours of existing ground
and details of terrain and area drainage.
3. Limiting dimensions, elevations or finish contours to be
achieved by the grading, and proposed drainage chan-
nels and related construction.
4. Detailed plans of all surface and subsurface drainage
devices, walls, cribbing, dams and other protective
devices to be constructed with, or as a part of, the pro-
posed work together with a map showing the drainage
area and the estimated runoff of the area served by any
drains.
5. Location of any buildings or structures on the property
where the work is to be performed and the location of any
buildings or structures on land of adjacent owners which
are within 15 feet (4572 mm) of the property or which
may be affected by the proposed grading operations.
6. The location of the top and toe of all cuts and fills, the
location of all "daylight" lines, the amount of cut and fill,
the location of disposal site for excess material, if
known, and the estimated dates for starting and complet-
ing grading work.
7. When reports are required pursuant to Section 7006.2,
recommendations included in the approved soils engi-
neering report and engineering geology report shall be
incorporated into the grading plans. A copy of the soils
report, geological report, and Department letter approv-
ing such reports shall be attached to the approved set of
grading plans and kept at the job site.
8. When reports are required pursuant to Section 7006.2,
the dates of the soils engineering and engineering geol-
ogy reports together with the names, addresses and
phone numbers of the firms or individuals who prepared
the reports shall be incorporated in the grading plans.
The Department may require some plans to be prepared by a
licensed surveyor when the property location and its limits are
not clear. Portions of the aforementioned plan requirements
may be waived by the Department if it finds that the informa-
tion on the application and/or submitted plans is sufficient to
show that the work will conform to the provisions of this Code
and other relevant laws.
7006.2 Report requirement. Reports shall be submitted to the
Department for review and approval in, but not limited to, the
following circumstances:
1. Soils and/or geological reports are required when they
are stipulated in a Grading Preinspection Report pre-
pared in accordance with Section 107.3.2 of this Code.
2. Soils and geological reports are required for all grading
work in excess of 5,000 cubic yards (3825 m^) of cut or
fill, or a combination thereof.
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2008 CITY OF LOS ANGELES BUILDING CODE
627
GRADING, EXCAVATBONS AND FILLS
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3. Foundation reports are required when the design of the
foundations does not conform to the requirements of
Chapter 18.
4. Foundation, soils, and/or geological reports may be
required when previously unknown adverse soils or geo-
logic conditions are revealed during construction.
5. Seismic Report as required by Section 1631 or for pro-
jects located on site designated as Alquist-Priolo (Fault)
Studies Zone.
The Superintendent of Building may require a geotechnical
investigation in accordance with Section 1804.5 to address the
potential of liquefaction when, during the course of an investi-
gation, all of the following conditions are discovered:
1. Shallow ground water, 50 feet (15 240 mm) or less.
2. Unconsolidated sandy alluvium.
j.3.1 Soils engineering report. The soils engineering
report required by Section 7006.2 shall include data regard-
ing the nature, distribution and strength of existing soils,
conclusions and recommendations for grading procedures
and design criteria for corrective measures, including but-
tress fills, when necessary, and opinion on adequacy for the
intended use of sites to be developed by the proposed grad-
ing as affected by soils engineering factors, including the
stability of slopes.
.2 Engineering geology report. The engineering
geology report required by Section 7006.2 shall include an
adequate description of the geology of the site, conclusions
and recommendations regarding the effect of geologic con-
ditions on the proposed development, and opinion on the
adequacy for the intended use of sites to be developed by the
proposed grading, as affected by geologic factors.
In addition, all soils engineering and engineering geology
reports for grading work in hillside areas shall also comply
with rules and standards established by the Department.
Surface and subsurface
exploratory work shall be performed by a soils engineer and an
engineering geologist on all hillside grading work. This explor-
atory work shall conform to the rules and regulations for hill-
side exploratory work established by the general manager of
the Department. The Department may waive this requirement
when it determines from the application and site conditions that
the proposed grading will conform to the provisions of the
Code.
No person shall conduct any grading operation for the access
of exploration equipment unless the Department has approved
a plan signed by the soils engineer cind/or geologist showing
the extent of access grading and how the site is to be restored
after exploration.
in hillside areas required. The Superintendent
of Building may require bonds in such form and amounts as
may be deemed necessary to assure that the work, if not com-
pleted in accordance with the approved plans and specifica-
tions, will be corrected to eliminate hazardous conditions.
7006.5.1 Surety bond. Before a permit is issued for excava-
tion or fill of 250 cubic yards (13 m^) or more of earth in a
hillside area, the owner of the property shall file with the
Department a bond for the benefit of the city. The bond shall
be executed by the owner and a corporate surety authorized
to do business in this state as a surety in an amount sufficient
to cover the entire project.
Exception: Upon application by the owner, the Depart-
ment may waive this requirement if:
1. The proposed grading is neither actually nor
potentially hazardous;
2. The grading work performed is in compliance with
a Department order; or
3. The applicant can substantiate, to the satisfaction
of the Department, that the work undei' a grading
permit will be fully executed.
7006.5.2 Cash bond. In lieu of a surety bond, the owner
may file a cash bond with the Department on the same terms
and conditions and in an amount equal to that which would
be required in the surety bond. The deposit may be in the
form of negotiable United States securities in lieu of cash.
7006.5.3 Application of bond to adjacent property.
Where grading is required on property adjacent to the grad-
ing site under permit in order to complete a project satisfac-
torily, the owner of such adjacent proper1:y need not provide
an additional grading bond if the original bond is of suffi-
cient amount to include such additional grading.
7006.5.4 Conditions of the bond. Every bond shall be con-
ditioned such that the owner shall:
1 . Comply with all applicable provisions of this Code
and all other applicable laws.
2. Comply with all of the terms and conditions of the
grading permit to the satisfaction of the Department.
3. Complete all of the work described by the permit, and
the plans and specifications relating thereto, within
the time limit specified in the permit. Upon applica-
tion by the permittee, the Department, or the Board, in
case an appeal is made to it pursuant to Section
98.0403 of the Los Angeles Municipal Code, may, for
sufficient cause, extend the time specified in the per-
mit, but no such extension shall release any surety on
the bond.
4. Install temporary erosion control devices when
required to do so by the provisions of this Code.
7006.5.5 Period and termination of bond. The term of
each bond shall begin on the date of filing and shall remain
in effect until the work is completed to the satisfaction of the
Department or until replaced by a new bond in the event of a
change of ownership. In the event of failure to complete the
work and/or failure to comply with all of the conditions and
terms of the permit, the Department may order some or all of
the work to be completed to correct any hazardous condi-
tions. The surety executing such bond, or such deposit, shall
continue to be firmly bound under a continuing obligation
for the payment of all necessary costs and expenses that may
be incurred or expended by the city in causing any and all of
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2008 CITY OF LOS ANGELES BUILDING CODE
GRADING, EXCAVATIONS AND FILLS
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such required work to be done and that said surety or the
depositor assents to any lawful extension of time within
which to construct and complete such work. Such costs
shall include an amount equal to the cost to the city of
administering the contract and supervising the work
required. In the case of a cash bond, the deposit, or any
unused portion thereof, shall be refunded to the depositor
upon completion of the work to the satisfaction of the
Department. The Department may release or exonerate the
bond under appropriate conditions when the public health
and welfare is not jeopardized.
7006.5.6 New ownership. In the event of change of owner-
ship during grading, the new owner shall secure a new grad-
ing permit and post a new bond to ensure completion of the
grading.
7006.5.7 Amount of bond. The amount of the bond shall be
based on the number of cubic yards of material in either
excavation or fill, whichever is the greater amount, and in
addition shall include the cost of all drainage or other pro-
tective devices such as, but not limited to retaining walls, as
may lawfully be required. That portion of the bond valua-
tion covering the cost of excavation or fill shall be computed
as follows:
250 to 10,000 cubic yards
$1,000, plus $1.00 per cubic yard
10,001 to 100,000 cubic yards
$1 1,000, plus 50 cents per cubic
yard for each additional cubic
yard in excess of 10,000
Over 100,000 cubic yards
$56,000, plus 35 cents per cubic
yard for each additional cubic
yard in excess of 100,000
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For SI: I cubic yard = 0.765 m^
7006.5.8 Installment refunds. When a substantial portion
of the required grading work has been completed to the sat-
isfaction of the Department, and when the completion of the
remaining grading work, site development or planting is
delayed, the Department may accept the completed portion
of the grading work and consent to the proportionate reduc-
tion of the bond to an amount estimated to be adequate to
ensure completion of the grading work, site development or
planting remaining to be performed. Only one such reduc-
tion shall be considered for each bond posted.
7006.5.9 Entry upon premises. The Departrrient, the
Board of Public Works, the surety company, or their duly
authorized representative, shall have access to the premises
described in the permit for the purpose of inspecting the
progress of the work.
In the event of default in the performance of any terms or
conditions of the permit, the surety or any person employed
or engaged in his or her behalf shall have the right to go upon
the premises to complete the required work, including the
installation of temporary erosion control devices.
Should the permittee or the surety fail to perform the
work described by the permit and the plans and specifica-
tion relating thereto or required by any applicable law, and it
is determined by either the Department or the Board of Pub-
lic Works that the public health, safety or general welfare is
endangered by such failure, the Department, the Board of
Public Works, or the representative of either may enter upon
the premises to perform all or any part of such work, includ-
ing the installation of temporary erosion control devices.
It shall be unlawful for the owner or any other person to
interfere with the ingress and egress from such premises of
any authorized representative or agent of any surety com-
pany or the city engaged in the work ordered by the Depart-
ment or the Board of Public Works.
7006.6 Consent of adjacent property owner. Whenever any
excavation or fill requires entry onto adjacent property for any
reason, the permit applicant shall obtain the written consent of
the adjacent property owner or the owner's authorized repre-
sentative, and shall file a copy of said consent with the Depart-
ment before a permit for such grading work may be issued. The
signature on such written consent shall be notarized.
In the event contours on adjacent properties are permanently
changed, structures or drainage devices are added or modified,
and/or the work done requires a grading permit under Section
106.1.2, a separate permit shall be required for each such
affected adjoining property in addition to the consent letter.
Furthermore, the adjacent property owner shall acknowledge
his or her consent on plans showing such work. The consent let-
ter will not be required if such grading permit is taken out by the
adjoining owner.
7006.7 Limitation of export and import.
7006.7.1 Export-import deflned. As used in this Chapter,
the term "export" and its derivatives shall be defined as the
earth, brush or similar materials transported from a grading
site. The term "import" and its derivatives shall be defined
as earth, brush or similar materials transported to a grading
site.
7006.7.2 General conditions. The Department may desig-
nate routes of ingress and egress and may impose such con-
ditions and require such safety precautions for pedestrian
and vehicular traffic as it determines are required in the
interest of public health, safety and welfare.
The imposed conditions may include, but are not limited to:
1 . Restricting the size and type of hauling equipment.
2. Requiring traffic control device, flaggers, and signs
and markers at appropriate locations along the desig-
nated routes as provided in the City of Los Angeles
Department of Public Works and Traffic pamphlet,
"Work Area Traffic Control Handbook," 1990 edi-
tion, or latest subsequent revisions.
3. Establishing a temporary "no parking" area autho-
rized by the general manager of the Transportation
Department when determined to be necessary.
4. Securing all loads by trimming, watering or other
appropriate means to prevent spillage and dust.
7006.7.3 Subdivision conditions. All conditions of import
and export imposed in the approval of a tentative tract map
shall be made a part of the grading permit.
7006.7.4 Special hillside conditions. No permit requiring
the import or export of more than 1,000 cubic yards (764
m^) shall be issued for areas designated "hillside" except as
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2008 CITY OF LOS ANGELES BUILDING CODE
629
GRAD8NG, EXCAVATDONS AND FILLS
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hereinafter specified. A fee of $350.00 in addition to the
permit fee shall be paid for processing such application for
grading under provisions of this section.
1. The applicant shall submit a proposed method of
hauling, which shall include the location of borrow
and/or dispersal sites within the hillside area, the
truck staging areas, the portion of the haul route
within the hillside area and extending to or from a
major or secondary highway, the maximum gross
weight of haul vehicles when loaded and other infor-
mation as may be required by the Departments of
Building and Safety, Transportation and Public
Works. In addition, the applicant shall submit a copy
of the soil/geological report approval letter when
reports are required pursuant to Section 7006.2, a
vicinity map, and a list of affected property owners to
be notified of the public hearing pursuant to Item 4.
2. The Department shall immediately forward a copy of
the hauling proposal to the Department of Public
Works which shall review same to determine the
effect of the proposed hauling operation on the struc-
tural integrity of the public streets, on public safety
due to street alignment, width and grade, and on pub-
lic health and welfare due to noise and vibration as it
may affect private property situated on or adjacent to
the haul route within the hillside area.
The Department of Public Works shall collect a fee
and may require a bond as specified in Article 2 of
Chapter VI of the Los Angeles Municipal Code. The
Department of Public Works may, within 21 days
after receipt of the proposal, recommend conditions
to be imposed on the hauling operations to protect the
public health, safety and welfare in the respects herein
above specified.
3. The Department shall also immediately forward a
copy of the hauling proposal to the Department of
Transportation which shall review same to determine
the effect thereof on vehicular and pedestrian traffic
in the affected area. The Department of Transporta-
tion may, within 21 days after receipt of the proposal,
recommend any traffic control measures deemed nec-
essary to protect the public health, safety and welfare.
4. The Department shall within 45 days after receipt of
the proposed method of hauling, schedule a public
hearing before the board provided that any environ-
mental document required pursuant to the provisions
of the California Environmental Quality Act has been
completed and that the soils/geology report for the
project, if required pursuant to Section 7006.2, has
been reviewed and approved by the Department's
Grading Division.
The Department shall give notice of the time, place
and purpose of the hearing as follows:
a. By publishing a notice in at least one publica-
tion of general circulation in the City, desig-
nated for that purpose by the City Clerk, not less
than 10 days prior to the date of the hearing; and
b. By mailing a written notice at least ten days
prior to the date of the hearing to the owner or
owners of the property involved, and to the
owners of all properties within 300 feet (91 440
mm) of the exterior boundaries of the site for
which the grading permit has been requested
using, for the purpose of notification, the last
known name and address of owners as ai"e
shown on the records of the City Clerk or the
records of the County Assessor; and
c. By the applicant posting notice of the public
hearing in a conspicuous place and in clear pub-
lic view on the property involved at least five
days prior to the date of the public hearing.
5. At the public hearing, the Board of Building and
Safety Commissioners shall consider the views of the
applicant and all other affected persons. The Board
shall then grant or conditionally grant approval of
export and import operations or, in the event it deter-
mines that the grading activity, including the hauling
operation, will endanger the public health, safety and
welfare, it shall deny the request. Where conditions of
the permit are recommended by the Department of
Public Works, including the condition that a bond be
posted pursuant to Section 62.202 of the Los Angeles
Municipal CcJe, such conditions shall be made a part
of any permit which may be issued. The decision of
the board shall not be effective until 10 calendar days
have elapsed from the date of the Board's decision.
6. Any affected person, including the applicant, who is
dissatisfied with the decision of the board, may appeal
the board's decision within 10 days to the City Coun-
cil by filing an appeal with the City Clerk. The City
Council shall hear and make its determination on the
appeal not later than the 30th day after the appeal has
been filed. The decision of the City Council on the
matter shall be final. If the City Council fails to act on
any appeal within the time limit specified in this sec-
tion, the action of the Board on the matter shall be
final.
7. The provisions of this section shall not apply to appli-
cations for permits which apply to export or import
operations which have been approved in accordance
with Section 17.13 of the Los Angeles Municipal
Code.
7006.8 Conformance with zoning regulations required.
7006.8.1 Subdivision map act. No permit shall be issued
for any grading or import or export of earth materials to or
from any grading site except in compliance with the zoning,
private street and division of land regulations contained in
Chapter I of the Los Angeles Municipal Code, the Subdivi-
sion Map Act of the State of California and the approved
master plan for the area in which the grading is to be done.
7006.8.2 Tentative tract map. No permit shall be issued for
the import or export of earth materials to or from and no
grading shall be conducted on any grading site in hillside
areas having an area in excess of 60,000 square fbet (5574
m^) unless a tentative tract map has been approved therefor
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630
2008 CITY OF LOS ANGELES BUILDING CODE
GRADING, EXCAVATIONS AND FILLS
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by the advisory agency. The advisory agency may waive this
requirement if it determines that a tract map is not required
by the division of land regulations contained in Chapter I of
the Los Angeles Municipal Code.
Exception: The requirements of this section shall not
apply to any grading allowed under the exception to Sec-
tion 7005.1.
SECTION 7007
SAFETY PRECAUTIONS DURING GRADING
If at any stage of work on an excavation or fill the Department
determines that further work as authorized by an existing per-
mit is likely to endanger any property or public way, the
Department may require as a condition to allow the work to
continue that plans for such work be amended to include ade-
quate safety precautions. Safety precautions may include, but
shall not be limited to, specifying a flatter exposed slope or
construction of additional drainage facilities, berms, terracing,
compaction, cribbing, retaining walls or buttress fills, slough
walls, desilting basins, check dams, benching wire rnesh and
guniting, rock fences revetments or diversion walls.
No person shall excavate or fill so as to cause falling rocks,
soil or debris in any form to fall, roll, sHde or flow onto adjoin-
ing properties.
7007.1 Restriction of work during rainy season. The period
between October 1 and April 15 is hereby determined to be the
period in which heavy rainfall normally occurs in the City of
Los Angeles and is declared to be the "rainy season." During
this period no grading work in excess of 200 cubic yards (153
m^) shall be commenced on any single grading site under per-
mit until an erosion control system has been approved and it
has been demonstrated to the Department's satisfaction that
such grading work will not endanger life, limb, health, property
or public welfare.
Whenever it appears that repair work to rectify substandard
conditions and any grading project previously commenced
pursuant to a permit issued by the Department will not be com-
pleted prior to the commencement of the rainy season, the
Department may order and the permittee shall install tempo-
rary erosion control devices to protect the persons and property
near such project. In addition, the Board of Public Works may
direct the permittee to comply with the provisions of Section
61.02 of the Los Angeles Municipal Code.
All hillside property owners or their agents shall submit ero-
sion control plans to their district grading inspectors prior to
October 1 for grading projects within unfinished grading work
in excess of 200 cubic yards (153 m^) and sites with substan-
dard conditions, unless specifically exempted by the grading
inspectors.
7007.2 Duration of work. No person shall conduct any grad-
ing excavation or filling, including the export or import of earth
material, between the hours of 6:00 p.m. and 7:00 a.m. on any
day nor on Sunday, at any time, except in emergencies as pro-
vided in Section 7005.4.
SECTION 7008
PROFESSIONAL INSPECTION AND CERTIFICATION
FOR ENGINEERED GRADING
Grading operations, as indicated in Section 108.9, for which a
permit is required shall be subject to inspection by the Depart-
ment. Professional inspection of grading operations shall be
provided by the civil engineer, soils engineer and the engineer-
ing geologist retained to provide such services in accordance
with Section 7008.6 for engineered grading and as required by
the Department for regular grading.
7008.1 Civil engineer. The civil engineer shall provide profes-
sional inspection within such engineer's area of technical spe-
cialty, which shall consist of observation and review as to the
establishment of line, grade and surface drainage of the devel-
opment area. If revised plans are required during the course of
the work, they shall be prepared by the civil engineer.
Upon completion of hillside tract grading, grading work in
excess of 5,000 cubic yards (3825 m^) of either cut or fill, or a
combination thereof, and other grading work if deemed war-
ranted by the Department, the civil engineer or land surveyor
responsible for the design shall submit a dated as-graded plan
to the Department for approval of all work covered by the grad-
ing permit(s) and shall include the following:
1. The plan shall be no more than one-inch equals 40 feet
scale (25 mm equals 12 192 mm scale)and shall show
the locations of streets, pads, slopes, structures, perti-
nent elevations, original contours and finished eleva-
tions, and other pertinent information required to
accurately show the as-graded condition.
2. The plan shall bear the signature of the design civil
engineer or land surveyor which shall certify he or she
has inspected the site, prepared the as-graded plans
and that the work within his or her area of responsibil-
ity was done in accordance with the final approved
grading plan.
7008.2 Soils engineer. The soils engineer shall provide profes-
sional inspection within such engineer's area of technical spe-
cialty, which shall include observation during grading and
testing for required compaction. The soils engineer shall pro-
vide sufficient observation during the preparation of the natural
ground and placement and compaction of the fill to verify that
such work is being performed in accordance with the condi-
tions of the approved plan and the appropriate requirements of
this chapter. Revised recommendations relating to conditions
differing from the approved soils engineering and engineering
geology reports shall be submitted to the owner, the Depart-
ment and the civil engineer.
The soils engineer, at the completion of hillside tract grad-
ing, grading work in excess of 5,000 cubic yards (3825 m^) of
either cut or fill, or a combination thereof, and other grading
work if deemed warranted by the Department, shall submit a
final report. The final report shall include:
1 . His or her professional opinion of the suitability of the
fill material and their placement, and the ability of the
natural materials to support the compacted fill without
excessive settlement of the fill or potential damage to
structures erected thereon;
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2008 CITY OF LOS ANGELES BUILDING CODE
631
GRADING, EXCAVATIOMS AND FILLS
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2. The results of all in-place density tests;
3. A statement that all subdrains were inspected prior to
backfill;
4. A statement to the effect that the soils engineers has
inspected all cuts and fills and that in his or her opinion
they meet the design requirements; and
5. All locations of the in-place density tests, retaining walls,
subdrains and cut/fiU slopes shall be shown on a plot plan
which may be referenced to a dated as-graded plan pre-
pared by the design civil engineer or land surveyor.
)8.3 Eegmeerimg geologist. The engineering geologist
shall provide professional inspection within such engineer's
area of technical specialty, which shall include professional
inspection of the bedrock excavation to determine if conditions
encountered are in conformance with the approved report.
Revised recommendations relating to conditions differing
from the approved engineering geology report shall be submit-
ted to the soils engineer and the Department.
For hillside tract grading, grading work in excess of 5,000
cubic yards (3825 m^) of either cut or fill, or a combination
thereof, and other grading work if deemed warranted by the
Department, geologists shall submit periodic in-grading
inspection reports at intervals determined by the Department.
In addition, the engineering geologist at the completion of
grading shall submit a final geological report stating he or she
had maintained the required in-grading inspection, the rec-
ommendations of his or her pregrading report(s) have been
followed, that in his or her professional opinion all known
adverse geologic conditions have been corrected or provided
for, future adverse geologic conditions are not anticipated,
and all lots or sites are geologically suitable and safe for con-
struction.
The final report shall include the geologist's certification
that he or she has inspected all cut slopes and sidehill fill place-
ment areas prior to placement of fill. The engineering geologist
shall also certify that all subdrain placement areas were
inspected prior to installation of the subdrains. The final report
shall be referenced to a dated as-graded plan prepared by the
design civil engineer or land surveyor.
L4 Gradimg contractor. For hillside tract grading, grading
work in excess of 5,000 cubic yards (3825 m^) of either cut or
fill, or a combination thereof, and other grading work if
deemed warranted by the Department, the grading contractor
shall submit in a form prescribed by the Superintendent of
Building a statement of conformance to said as-built plan and
the specifications.
18.5 Transfer of responsntoillty. If, for any reason, the civil
engineer, the soils engineer, or the engineering geologist of
record is terminated during the progress of the grading work,
he or she and the owner shall immediately notify the Depart-
ment in writing.
Such transfer of responsibility may result in temporary
delays in the grading operations until satisfactory arrange-
ments are made to assure the Department that competent pro-
fessional supervision is provided. The new professional(s)
shall submit to the Department a letter of responsibility that the
previous professional's designs, reports and recommendations
have been reviewed and all provisions of the Department
required as conditions of the grading permit will be complied
with during the course of the work.
7008.6 Owner. The owner shall be responsible for the work to
be performed in accordance with the approved plans and speci-
fications and in conformance with the provisions of this Code,
and the owner shall engage consultants, if required, to provide
professional inspections on a timely basis. The owner shall pro-
vide a registered deputy grading inspector as required by Sec-
tion 1701. The owner shall act as a coordinator between the
consultants, the contractor and the Superintendent of Building.
In the event of changed conditions, the owner shall be responsi-
ble for informing the Superintendent of Building of such
change and shall provide revised plans for approval. The
Department may require the submittal of a supplemental soils
and/or geological report justifying such change.
7008.7 Notification of noncompliance. If, in the course of ful-
filling their respective duties under this chapter, the civil engi-
neer, the soils engineer or the engineering geologist finds that
the work is not being done in conformance with this chapter or
the approved grading plans, the discrepancies shall be reported
immediately in writing to the owner and to the Superintendent
of Building.
SECTION 7009
PROFESSIONAL INSPECTION FOR REGULAR
GRADING
When soils and/or geological reports are submitted to the
Department per Section 7006.2, professional inspection for
regular grading work may be required by the Department and
so stipulated on a Department letter approving such reports.
SECTION 7010
EXCAVATIONS
7010.1 Height. No cut slope shall exceed a vertical height of
100 feet (30 480 mm) unless horizontal benches with a mini-
mum width of 20 feet (6096 mm), as shown in Figure D are
installed at each 100 feet (30 480 mm) of vertical height.
7010.2 Slope. No excavation shall be made with a cut face steeper
than one unit vertical in two units horizontal (50-percent slope).
Exception: The Department or the Board, in case an appeal
is made to it under Section 105, may permit the excavation
to be made with a cut face steeper in slope than one unit ver-
tical in two units horizontal (50-percent slope) if the appli-
, cant shows through investigation, subsurface exploration,
analysis and report by both a soils engineer and an engineer-
ing geologist, to the Department's satisfaction, that the
underlying bedrock and the materials to be exposed on the
slope have strength characteristics sufficient to produce a
stable slope with a factor of safety of not less than 1.5 for
static loads.
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Existing or proposed slopes shall be regraded or cut so as u
to be not steeper than the bedding planes in formation where [^^
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tress fills designed pursuant to the provisions of Section
1819 or Section 7015 of this Code.
Exception: Where special conditions warrant, the
Department may approve slopes steeper than the bedding
planes if the applicant shows through investigation,
subsurface exploration, analysis and report by both a soils
engineer and an engineering geologist, to the Depart-
ment's satisfaction, that the slopes will have a factor of
safety against sliding of not less than 1 .5 for static loads.
Whenever grading at the top of any natural or manufactured
slope exposes soil or bedrock material that will allow the infil-
tration of water in a manner that would adversely affect the sta-
bility of the slope, the exposed area shall be capped with a
relatively impervious compacted soil blanket seal having a
minimum thickness of 2 feet (610 nam). The soils engineer
shall certify in writing that the blanket seal is adequate to
reduce water infiltration to permissible levels.
7010.3 Top of cut slope. The top of cut slopes shall not be
made nearer to a site boundary line than one fifth of the vertical
height of cut with a minimum of 2 feet (610 mm) and a maxi-
mum horizontal distance of 10 feet (3048 mm). The setback
may need to be increased for any required interceptor drains.
Setback dimensions shall be horizontal distances measured
perpendicular to the site boundary. Setback dimensions shall
be as shown in Figure E of this chapter.
SECTION 7011
FILLS
7011.1 Height. No fill slope shall exceed a vertical height of
100 feet (30 480 mm) unless horizontal benches with a mini-
mum width of 20 feet (6096 mm), as shown in Figure D are
installed at each 100 feet (30 480 mm) of vertical height.
7011.2 Slope. No fill shall be made which creates an exposed
surface steeper than one unit vertical in two units horizontal
(50-percent slope). The fill slopes abutting and above public
property shall be placed so that no portion of the fill lies above a
plane through a public property line extending upward at a
slope of one unit vertical in two units horizontal (50-percent
slope).
Exception: The Department or the Board in case an appeal
is made to it under Section 105 may permit a fill to be made
which creates an exposed surface steeper in slope than one
unit vertical in two units horizontal (50-percent slope), pro-
vided:
1 . The use of the steeper slope is determined to be neces-
sary due to special design limitations on the site,
2. The gradient does not exceed one unit vertical in one
and one-half units horizontal (66.7-percent slope) and
3. The applicant shows through investigation,
subsurface exploration, analysis and report by both a
soils engineer and an engineering geologist, to the
Department's satisfaction, that the fill to be used and
the underlying bedrock or soil supporting the fill have
strength characteristics sufficient to produce a stable
slope with a minimum factor of safety not less than
1.5 for static loads. The soils engineer shall verify by
necessary testing and observation and shall certify
attainment of the required strength characteristics in
the fill materials as specified in the approved report.
7011.3 Compaction. All manufactured fills shall be placed on
natural undisturbed material or approved compacted fill. Fills
shall be compacted throughout their full extent to a minimum
relative compaction of 90 percent of maximum dry density
within 40 feet (1219 mm) below finish grade and 93 percent of
maximum dry density deeper than 40 feet (1219 mm) below
finish grade, unless a lower relative compaction (not less than
90 percent of maximum dry density) is justified by the soils
engineer. The relative compaction shall be determined by
ASTM soil D 1557. Every manufactured fill shall be tested for
relative compaction by a soil testing agency approved by the
Department. A compaction report including a Certificate of
Compliance setting forth densities so determined shall be sub-
mitted to the Department for review before approval of any fill
is given. For slopes to be constructed with an exposed slope
surface steeper than two horizontal to one vertical, compaction
at the exposed surface of the slope shall be obtained either by
overfilling and cutting back the slope surface until the com-
pacted inner core is exposed, or by compacting the outer hori-
zontal 10 feet (3048 mm) of the slope at least 92 percent of
relative compaction.
Prior to permitting building on deep fills, the Department
may require the determination of the settlement characteristics
of the fills to establish that any movements have substantially
ceased. In those cases, a system of benchmarks shall be
installed at critical points on the fill and accurate measurement
of both horizontal and vertical movements shall be taken for a
period of time sufficient to define the settlement behavior. In no
case shall the period of time be less than 1 year, with at least
four consecutive checks made at intervals of 3 months.
' Exceptions:
1. The Department may approve uncompacted fill in
self-contained areas where the fills are not to be used
to support buildings or structures and no hazard will
be created.
2. Fill material placed in areas within cemeteries used or
to be used for internment sites shall be compacted to a
minimum of 80 percent, unless the fill is placed on a
slope steeper than three horizontal to one vertical, or
placed on slopes adjacent to public properties or pri-
vate properties in separate ownership, or is to be used
to support buildings or structures, in which cases it
shall be compacted to a minimum of 90 percent.
3. Compaction report is not required for gravel backfill
behind retaining walls provided the following condi-
tions are met:
A. The retaining wall does not exceed 10 feet
(3048 mm) in height.
B. The maximum distance between the retaining
wall and the backcut shall not exceed 24 inches
(610 mm).
C. The gravel backfill shall be mechanically com-
pacted and covered with concrete pavement or
be capped with a 24-inch thick soil blanket
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2008 CITY OF LOS ANGELES BUILDING CODE
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mechanically compacted to the Department's
satisfaction.
D. The gravel backfill does not provide vertical or
lateral support for any structures or adverse
bedding planes.
701 lo4 Fill slopes. Fill slopes shall be prepared for planting in
one of the following three ways:
1 . The slope surface of fills may be prepared for planting by
casting topsoil over the slope surface. The topsoil layer
shall not exceed three inches (76 mm) in depth.
2. The slope surface may be scarified to a depth not to
exceed 3 inches (76 mm).
3. Loose material not to exceed 3 inches (76 mm) in depth
may be left on the slope.
7011.5 Toe of fill slope. The toe of fill slope shall be made not
nearer to a site boundary line adjoining other private properties
than one half the height of the fill slope with a minimum of two
feet (610 mm) and a maximum of 20 feet (6096 mm).
In the event retaining walls are constructed to retain fill, the
height of the fill shall be measured from the elevation of the fill
behind the wall and the setback distance may be measured from
the face of the wall to the boundary line.
Setback dimensions shall be horizontal distances measured
perjjendicular to the site boundary. Setback dimensions shall
be as shown in Figure E of this chapter.
7011.6 Old fills. All manufactured fills, whether compacted or
not, which were placed prior to April 25, 1963, shall be investi-
gated by the soils engineer to determine their suitability for the
proposed use before any approval to build is issued.
7011.7 Combmed CMt and fill slopes. Where a combined cut
and fill slope exceeds 25 feet (7620 mm) in height, the required
drainage bench shall be placed at the top of the cut slope. The
effect of surcharge of the fill upon the cut bedrock shall be con-
sidered by the soils engineer and engineering geologist, and
specific recommendations shall be made relative to the setback
between the cut and fill.
7011.8 Fill areas. Areas on which fill is to be placed shall be
investigated by the soils engineer, or by the soils engineer and
geologist to determine if they are adequate to support the fill
without undue detrimental consolidation. Slopes exceeding
one unit vertical in five units horizontal (20-percent slope) shall
be benched prior to placing fill.
Exceptioe: The Department may waive this investigation
where it determines by inspection that the underlying mate-
rial is adequate to support the proposed fill.
7012,1 Gemeral. All fill and cut slopes in designated hillside
areas shall be planted and irrigated with a sprinkler system to
promote the growth of ground cover plants to protect the slopes
against erosion, as required in this section.
The owner shall be responsible for planting and maintaining
all slopes where such is required in this section.
7012.2 Minimum reqinirements.
7012.2.1 Low slopes to 15 feet (4572 mm) m vertical
height. Slopes with vertical height of less than 15 feet (4572
mm) shall comply with the following:
1. Plant with grass or ground cover plants as recom-
mended on the planting schedule approved by the
Department. Other plants recommended by a regis-
tered landscape architect will be considered for
approval by the Department.
2. A sprinkler system shall be installed to irrigate these
slopes.
3. The owner shall water the slopes which have been
planted with grasses and/or ground cover plants at
sufficient time intervals to promote growth.
Exception: Where the Department finds the slope is
located in such an area as to make hand watering possi-
ble, conveniently located hose bibs will be accepted in
lieu of the required sprinkler system when a hose no lon-
ger than 50 feet (15 240 mm) would be necessary.
7012.2.2 Medium slopes [15 to 38 feet (4572 to 11 582
mm) in vertical height]. Slopes with vertical height from
15 feet (4572 mm) up to 38 feet (1 1 582 mm) shall comply
with the following:
1. Plant with grass or ground cover plants as recom-
mended on the planting schedule approved by the
Department. Other plants may be recommended by a
landscape architect for approval by the Department.
2. In addition to grass or ground cover plants, approved
shrubs having a 1 gallon (3.8 L) minimum size shall
be planted on the slope at 10 feet (3048 mm) on center
in both directions. The plants and planting pattern
may be varied to include trees on the recommendation
of the landscape architect and. approved by the
Department.
3. Install an adequate sprinkler system during grading
prior to planting of the shrubs and trees and before
grading is approved.
7012.2.3 High slopes [38 feet (11 582 mm) or over in ver-
tical height]. Slopes with verdcal height of 38 feet (1 1 582
mm) and higher shall comply with the following:
1 . Plant with grass or ground cover plants as recommended
on the planting schedule approved by the Department.
Other plants recommended by landscape architects may
be submitted to the Department for approval.
2. In addition to grass or ground cover plants, approved
shrubs having a minimum one gallon (3.8 L) size shall
be planted at 10 feet (3048 mm) on center in both
directions on the slope, or trees at 20 feet (6096 mm)
on center both ways may be used. A combination of
shrubs and trees may be utilized. This plant ^md plant-
ing pattern may be varied on the recommendation of a
landscape architect and approved by the Department.
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3. Install an adequately designed sprinkler system prior
to planting shrubs and trees and before grading is
approved.
7012.3 Specialijrequirements for sprinkler systems.
7012.3.1 Plans for the sprinkler system shall be submitted to
and approved by the Department prior to installation.
7012.3.2 Sprinkler systems shall be designed to provide a
uniform water coverage at a rate of precipitation of not less
than V,o inch (2.5 mm) per hour or more than Vjo inch (7.6
mm) per hoiir on the planted slope. In no event shall the
duration of sprinkling be permitted such as to create a satu-
rated condition and cause an erosion problem, or allow the
discharge of excess water into any public or private street.
7012.3.3 A check valve and balance cock shall be installed
in the system where the drainage from sprinkler heads will
create an erosion problem.
7012.3.4 Adequate backflow protection shall be installed in
each sprinkler system as required by the Plumbing Code.
7012.3.5 A functional test of the sprinkler system shall be
performed by the installer for every sprinkler system prior
to approval.
7012.3.6 Where PVC pipes are used on slopes, they shall be
a minimum of schedule 40 and embedded at least eight
inches (203 mm) below grade. Such pipes may be exposed
for above ground installations provided they are ASTM
rated as resistant to ultraviolet sunlight. All risers, sprinkler
heads, valves and fittings shall be brass or galvanized metal,
or rated as sunlight resistant.
7012.4 Plants. All plants required by this section shall be
selected from a list approved by the Department.
SECTION 7013
EROSION CONTROL AND DRAINAGE DEVICES
7013.1 Interceptor terraces. Paved interceptor terraces shall
have a minimum width of 8 feet (2438 mm) and shall be
installed on the face of all cut and fill slopes at intervals not to
exceed 25 feet (7620 mm) measured along a vertical plane.
Where only one terrace is required, it shall be at mid-height.
The cross section of interceptor terraces shall meet the speci-
fication shown in Figure A of this chapter.
The longitudinal slope of interceptor terraces shall not be
less than 5 percent or more than 12 percent and any change in
rate of grade within these allowable slopes shall increase the
grade in the direction of flow.
A single run of an interceptor terrace shall not exceed 150
feet (45 720 mm) to a down drain.
Down drain shall be embedded round pipes enclosed in con-
crete shaped as shown in Section C-C of Figure G of this
chapter, or an alternate design which is prepared by a civil engi-
neer and acceptable to the Department.
7013.2 Diverter terraces. Paved diverter terraces, constructed
as shown in Figure B of this chapter, shall be installed at the top
of all cut slopes where the tributary drainage area above has a
slope exceeding one unit vertical in 10 units horizontal (10-per-
cent slope) and a horizontal projection of greater than 40 feet
(12 192 mm).
7013.3 Berms. Berms conforming to the provisions of Figure
C of this chapter shall be constructed at the top of all slopes.
7013.4 Vee channels. Where a slough wall is required at the toe
of the slope by other provisions of this Code, or a retaining wall
is built to support any cut or fill slope, a vee channel shall be
constructed behind the wall to carry off the slope waters to
interceptors, down drains or other approved drainage devices.
7013.5 Inlet structures, down drains and outlet structures.
7013.5.1 Inlet structures. Inlet structures shall be of con-
crete, galvanized iron hot dipped in asphalt or equivalent. The
inlet structure shall be grated or grilled, or of such entry shape
as to prevent entry of objects of greater than four inches (102
mm) in dimension. The inlet structure shall be placed on the
bench as shown in Section Y-Y of Figure G of this chapter
and shall be so shaped as to provide small entry losses. An
overflow structure into the vee down drains shall be provided.
7013.5.2 Down drains. Down drains shall have paved
inverts and shall be of concrete, minimum 18 gauge corru-
gated galvanized iron hot dipped in asphalt, or corrugated
alloy 3004-H-34 aluminum of minimum 16 gauge and hot
dipped in asphalt or equivalent. Pipe down drains shall con-
form with Section C-C of Figure G of this chapter and shall
have a diameter of a size required by runoff calculations, but
no less than 12 inches (305 mm).
Open channel down drains shall be designed by a civil
engineer and shall have a minimum capacity equal to four
times the required pipe size. The alignment of down drains
shall be such as to conserve velocity head.
7013.5.3 Outlet structures. Outlet structures shall be of con-
crete, galvanized iron hot dipped in asphalt or equivalent.
Where outletting into street or other approved termina-
tion areas, the structure shall be of a design approved by the
Department of Public Works. Where outletting into natural
watercourses or other approved locations, the structure shall
be provided with adequate velocity reducers, diversion
walls, rip-rap, concrete aprons or any similar energy
dissipator. All slope drainage shall be collected and dis-
posed, of in the drainage device.
7013.6 Runoff computations. Runoff shall be based on the
proper 50-year isohyetal, and the runoff calculation shall be
based on the latest methods adopted by the Bureau of Engineer-
ing.
7013.7 Drainage dispersal wall. A drainage dispersal wall
shall be constructed as set forth in Figure F of this chapter
whenever it is necessary to convert channel flow to sheet flow.
7013.8 Subdrains. Subdrains shall be laid under all fills placed
in natural watercourses. Subdrains shall be placed along the
watercourse flow line and along the flow line of any branches
tributary thereto. Additional subdrains shall be installed to col-
lect any active or potential springs or seeps which will be cov-
ered by the fill. Subdrains shall be installed after the
watercourse has been excavated to firm material in preparation
for receiving the fill. Individual design shall be shown on each
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plan for city approval, based on recommendations of the soils
engineer and geologist to the satisfaction of the Department.
3 Gutters. Have or ground gutters shall be provided to
receive all roof water and deliver it through a nonerosive device
via gravity to a street or watercourse, or approved drainage'
facility, if the slope of the underlying natural ground exceeds
three percent or if more than 3 feet (914 nun) of compacted fill
or more than 1 foot (305 mm) of uncompacted fill is placed on
the ground.
7013.10 Site drainage. All pads with cut or fill shall slope a
minimum of 2 percent to an approved drainage device or facil-
ity, or to a public street. Where used, the drainage device shall
be an adequately designed system of catch basins and drain
lines, which conducts the water to a street.
Exception: Where the slope of the underlying natural
ground does not exceed 3 percent and the compacted fill is
less than three feet (914 mm) in depth, the slope of the pad
may be reduced to one percent.
7013.11 Drainage around buildings. On all building sites,
acceptable drainage devices shall be installed to conduct storm
water around buildings whenever the distance from the build-
ing to the top of any slope is less than 5 feet (1524 mm). Where
used, the drainage device shall be an adequately designed sys-
tem of catch basins and drain lines which conducts the water to
a street.
7013.12 Maintenance of drainage. Drainage in conformance
with the provisions of this Code shall be maintained during and
subsequent to construction.
SECTION 7014
CONSTRUCTION REQUIREMENTS AND
LIMITATIONS
7014.1 Construction, general. No structure shall be con-
structed upon a slope steeper than one unit vertical in two units
horizontal (50-percent slope). For building location and set-
back requirements, see Chapter 18.
Exceptions:
1. Subject to approval by the Department, construction
may be placed upon slopes steeper than one unit verti-
cal in two units horizontal (50-percent slope), pro-
vided reports from a soils engineer and engineering
geologist recommend favorably toward construction.
The reports shall include adequate information and
analysis to show to the Department's satisfaction that
the underlying bedrock and natural soils and slope
surface materials have strength characteristics suffi-
cient to produce a stable slope with a factor of safety
of not less than 1.5 for static loads. The reports shall
incorporate provisions for downhill creep in the
design of footings where applicable.
2. Where a minor amount of the structure is constructed
on the slope or where the construction consists of an
unroofed deck, the Department may approve the con-
struction without engineering and geological reports.
7014.2 Slough wall. If potential sloughing hazards affecting
buildings or structures are present on natural, cut or fill slopes
in excess of 20 feet (6096 mm) in vertical height, slough pro-
tection devices may be required by the Department.
7014.3 Flood and mudflow protection. Flood and mudflow
protection shall be provided for all new buildings, additions to
buildings and substantial improvements to buildings, which are
located on sites determined by the Department to be subject to
those conditions, in accordance with Ordinance No. 163,913.
The recommendations for mudflow protection shall be con-
tained in a site investigation report made by persons qualified
and licensed in civil engineering, engineering geology and/or
soils engineering to ascertain the location, magnitude and
extent of potential mudflow hazards and to recommend mea-
sures for protection or the elimination of those hazards. The use
of the minimum design parameters specified in this Code shall
be justified in the report.
Minimum design parameters to be used for mud/debris flow
control systems within and at the base of concentration drain-
age areas are:
LA channel flow capacity of ten cubic feet per second
(0.28 mVs) per acre (ha) of tributary drainage area; or
2. A temporary storage capacity of 400 cubic yards (306
m^) per acre (ha) of tributary drainage area
SECTION 7015
BUTTRESS FILLS
7015.1 General. A buttress fill is a designed compacted earth
fill used for providing lateral support to an unstabilized rock
mass. All buttress fills shall comply with the more restrictive of
the requirements of this section or Section 7006.
7015.2 Foundation. The ability of the foundation material to
support the buttress shall be investigated and the soils engineer
shall provide specifications for keying of the base of the but-
tress and for bonding the buttress to the natural ground.
7015.3 Base width. The minimum base width of a buttress fill
shall not be less than 12 feet (3658 vam) or less than one half its
height, whichever is the greater. The width of a buttress fill may
vary uniformly to atop width of not less than 12 feet (3658 mm).
7015.4 Slope. The exposed surface of a buttress fill shall not
exceed a slope of one unit vertical in two units horizontal
(50-percent slope).
Exception: The Department or the board, in case an appeal
is made to it under Section 105, may permit a butlxess fill to
be made which creates an exposed surface steeper in slope
than one unit vertical in two units horizontal (50-percent
slope), provided:
1 . The use of the steeper slope is determined to be neces-
sary due to special design limitations on the site;
2. The gradient does not exceed one unit vertical in one
and one-half units horizontal (66.7-percent slope);
and
3. The applicant shows through investigation,
subsurface exploration, analysis and report by both a
soils engineer and an engineering geologist to the
Department's satisfaction, that the buttress fill to be
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2008 CITY OF LOS ANGELES BUILDING CODE
GRADING, EXCAVATIONS AND FILLS
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used and the underlying earth material supporting the
fill will have strength characteristics sufficient to pro-
duce a stable slope with a minimum factor of safety of
not less than 1.5 for static loads.
L5.S Subdrains. Subdrains which blanket the entire back
face of the buttress or which occur at intervals shall be provided
to prevent buildup of hydrostatic pressure. Details of subdrains
shall be provided by the soils engineer and approved by the
Department.
7(D15.6 Blanket seals. Blanket seals of relatively impervious
material shall be required on cut pads above buttress fills where
grading exposes the strata to infiltration of water. The blanket
shall be of 2-foot (610 mm) minimum thickness or of such
greater dimension as specified by the soils engineer.
7015.7 Design. For design purposes, a maximum value of 75
pound per square feet (3.6 kN/m^) cohesion and an angle of
internal friction of 6 degrees (0.10 rad) may be used to deter-
mine the resistance of the bedding plane. Use of greater value
shall be substantiated by tests taken along the probable slip
plane under conditions simulating the worst possible field con-
ditions. The method of performing these tests shall be included
in the soils engineer's report.
The type, percentage of compaction, cohesion and angle of
internal friction of the materials to be placed in the buttress
shall be specified.
The buttress fill shall be designed for a minimum safety fac-
tor of 1 .50 based on the residual strength of the bedrock and the
lowest shear strength of the fill material.
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BASIC GRID MAP
No. A-13372
2008 CITY OF LOS ANGELES BUILDING CODE
637
GRADING, EXCAVATIONS AND FILLS
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CUT OR FILL
SLOPE
4' BY 4' KEY
3" MINIMUM CONCRETE
OR GUNITE
6" BY 6" NO. 10 BY 10 WELDED WIRE FABRIC
OR EQUIVALENT REINFORCING STEEL
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
INTERCEPTOR TERRACE
FIGURE A
CUT OR FILL
SLOPE.
3" MINIMUM CONCRETE
OR GUNITE
6" BY 6" NO. 10 BY 10 WELDED WIRE FABRIC
OR EQUIVALENT REINFORCING STEEL
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
DIVERTER TERRACE
For top of cut slopes
FIGURE B
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
BERM DETAIL
FIGURE C
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638
2008 CITY OF LOS ANGELES BUILDING CODE
GRADING, EXCAVATIONS AND FILLS
CUT OR FILL SLOPE
(TYP)
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6"x6" No. 10x10 WELDED WIRE FABRIC OR
EQUIVALENT REINFORCEMENT
For SI: 1 foot = 304.8 nun.
THE LONGITUDINAL SLOPE SHALL NOT BE LESS THAN 4% NOR
MORE THAN 12%. A SINGLE RUN SHALL NOT EXCEED 150' TO
ADOWNDRAIN.
20-FOOT HORIZONTAL BENCH
FIGURE D
NOTES:
1 . Concrete drainage benches shall be formed before pouring concrete. Forms shall be set to grade and alignment at all breaks in the cross sections. The concrete shall
be screeded to cross sections.
2. Gunite drainage benches shall be shot to wire guides. Guides shall be set to grade and alignment at all breaks in the cross section. The gunite shall be screeded to
cross section.
3. When concrete is to be places against earth, the area to be covered shall be trimmed and finished to the dimensions shown on the plans. The area shall be moistened
and thoroughly compacted to form a firm foundation. Grade stakes shall be installed to clearly establish flow lines.
H/2BUT2'(610mm)MIN
AND 20' (6096 mm) MAX.
L
NATURAL OR
FINISH GRADE
NATURAL OR
FINISH GRADE
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AND 10' (3048 mm) MAX.
'PERMIT AREA BOUNDARY
For SI: 1 foot = 304.8 mm.
FIGURE E
NATURAL GRADE-CUT OR FILL
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NO. 10 BY NO. 10 — 6" BY 6" WELDED WIRE FABRIC-
NATURAL GRADE
FARRir— ' /
For SI: 1 inch = 25.4 mm, 1 foot = 304.8. mm.
DRAINAGE DISPERSAL WALL
FIGURE F
NOTES:
1. Grout all cells and omit all head joints first course.
2. Wall to be located along contour line to establish uniform overflow or seepage.
3. Length of wall to equal length of contour line affected by grading.
4. When concrete is to be placed against earth, the area to be covered shall be trimmed and finished to the dimensions shown on the plans. The area shall be moistened
and thoroughly compacted to form a firm foundation. Grade stakes shall be installed to clearly establish flow lines.
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2008 CITY OF LOS ANGELES BUILDING CODE
639
GRAD8NG, EXCAVATIONS AND FILLS
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NO. 5 BARS ~ 4" O.C. WELDED SYMMETRICALLY DEFORMED OR BAR STOCK
TO HOOP ABOUT AND BEND
TO FIT DRAIN SURFACE
WHEN NECESSARY \
For SI: 1 inch = 25.4 mm, 1 foot = 304:8 mm.
PLAN VIEW INLET STRUCTURE
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For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
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PLAN VIEW OUTLET STRUCTURE
FIGURE G
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640
2008 CITY OF LOS ANGELES BUILDDNG CODE
GRADING, EXCAVATIONS AND FILLS
OVERFLOW CHANNEL
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For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
2' BY 2' OPENING
IN REAR WALL
BAFFLE
1'-5"
5' -6"
3
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-2" SLOT
SECTION B-B
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NO. 5 BAR
CONCRETE
OR GUNITE
1/4" SELF-
THREADING
SCREW
1" BY y/' GALVANIZED
METAL STRAP WELDED
TO BAR HOOP AND FORMED
TO FIT
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
SECTION C-C
GRATING FASTENING DETAIL H
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2008 CITY OF LOS ANGELES BUILDING CODE
641
GRADING, EXCAVATIONS AND FILLS
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FILL OR CUT SLOPE
24"
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16 GAUGE
GALVANIZED
For SI: 1 inch = 25.4 mm.
INLET STRUCTURE
SECTION Y-Y
SECTION 7016
AREAS SUBJECTED TO
SLIDES AND UNSTABLE SOIL
7016.1 General. The provisions of this section shall be fully
complied with prior to issuance of a grading permit in areas
subject to slides or unstable soil.
7016.2 Records and maps. The Department may adopt maps
delineating areas of relative hazard for the application of this
chapter.
7016.3 DelKeitioES. The following definitions shall apply for
the purpose of this section:
ACTIVE LANDSLIDE. A landslide that has been active since
January 1, 1952.
HISTORICAL LANDSLIDE. A landslide that was active in
historical time prior to 1952 as determined from photographs,
maps and written records.
LANDSLIDE. The faUing, slipping or flowing of a mass of
land from a higher to a lower level.
POSSIBLE PREHISTORIC LANDSLIDE. Areas where
there is no record of a historic landslide, but where topographic
expression or geological evidence suggests the possibility of
past land movement.
PREHISTORIC LANDSLIDE. Conditions where there is no
record of historical landslide, but where geological evidence or
topographic expression indicates modification of the terrain by
land movement.
7016.4 Permission to construct buildings or to do grading
work.
7016.4.1 Active landslide or historic landslide area. No
building or grading permits shall be issued for development
in active or historic landslide areas until, and unless, stabili-
zation of the entire slide or soil mass which may have an
adverse effect on the proposed development or access
thereto can be satisfactorily demonstrated to the Depart-
ment.
7016.4.2 Prehistoric landslide or questionable area. No
building or grading permit shall be issued for development
in prehistoric landslide or questionable areas except by spe-
cific approval of the Department, based on approved state-
ments and calculations from soil engineers and engineering
geologists attesting to the apparent safety of the proposed
developments and demonstrating a minimum factor of
safety of 1 .5 for the stability of the site and access to the site.
For these areas, the affidavit required in Exception 2 of Sec-
tion 106.4.1 of this Code shall be filed unless it has been
determined that, as a result of satisfactory reports by soils
engineers and engineering geologists, the development is
not located in an area subject to slides or unstable soil,
which may have an adverse effect on the proposed develop-
ment or access to the proposed development.
7016.4.3 Other conditions. If, in the opinion of the Super-
intendent of Building, there is evidence of potentially haz-
ardous conditions other than those covered by Sections
7016.4.1 and 7016.4.2, the Department may require satis-
factory reports from soils engineers and engineering geolo-
gists and, after reviewing those reports, may issue a permit
when the reports demonstrate the stability and safety of the
development. The affidavit may be required by the Depart-
ment if it is found that the area in question has elements of
hazard or, if the reports so indicate, a permit may be refused.
7016.5 Affidavits required. When an affidavit required in this
section, has been filed, upon notice of correction of the unsta-
ble conditions due to landslide or unstable soil, the Superinten-
dent of Building shall file with the Office of the County
Recorder a certificate specifying that the property is no longer
considered hazardous due to landslide or unstable soil.
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CHAPTER 71
METHANE SEEPAGE REGULATIONS
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SECTION 7101
PURPOSE
This chapter sets forth the minimum requirements of the City
of Los Angeles for control of methane intrusion emanating
from geologic formations. The requirements do not regulate
flammable vapor that may originate in and propagate from
other sources, which include, but are not limited to, ruptured
hazardous material transmission lines, underground atmo-
spheric tanks, or similar installations.
SECTION 7102
DEFINITIONS
For the purpose of this chapter, certain words and phrases are
defined as follows:
ALARM SYSTEM. A group of interacting elements consist-
ing of components and circuits arranged to monitor and annun-
ciate the status of gas concentration levels or supervisory
signal-initiating devices and to initiate the appropriate
response to those signals.
BUILDINGS WITH RAISED FLOOR CONSTRUC-
TION. A building with the bottom of the floor system raised
above grade where the clearance for each of the following
items shall be at least: 12 inches (305 nam) for the girder, 18
inches (457 mm) for the floor joist and 24 inches (610 mm) for
the structural floors.
CABLE OR CONDUIT SEAL FITTING. An approved fit-
ting provided in a cable or conduit system to prevent the pas-
sage of gases, vapors, or flames through electrical cable or
conduit.
DESIGN METHANE CONCENTRATION. The highest
concentration of methane gas found during site testing.
DESIGN METHANE PRESSURE. The highest pressure of
methane gas found during site testing.
DE- WATERING SYSTEM. A permanent water removal sys-
tem, consisting of perforated pipes, gravel, sump pumps and
pits, designed to permanently maintain the ground water level
one foot below the sub-slab vent system.
LA GAS DETECTION SYSTEM. One or more electrical
devices that measure the methane gas concentration and com-
municate the information to the occupants, building manage-
ment, central station or alarm company with audible or visual
signals.
GRAVEL BLANKET. A layer of gravel, sand or approved
material designed to transmit gas to the vent riser without
obstructing the venting system.
IMPERVIOUS MEMBRANE. A continuous gas barrier
made of material approved by the Department and installed
beneath a building for the purpose of impeding methane migra-
tion to the interior of the building.
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MECHANICAL EXTRACTION SYSTEM. A system oper-
ated by a machine which is designed to remove methane gas
from below the impervious membrane through the use of fans,
blowers, or other powered devices.
MECHANICAL VENTILATION. A fan, blower or other
similar group of interacting elements operated by a machine
within the building, which introduce and/or remove air from an
enclosed space.
NARROW BUILDING, shall mean a building that has a
width less than 50 feet (1270 mm), a footprint of less than
50,000 square feet and having a minimum 2-foot (5 1 mm) wide
landscaped area immediately adjacent to the exterior wall for at
least 50 percent of the perimeter of the building.
OIL WELL. A deep hole or shaft sunk into the earth for the
exploration of oil or gas; or which is on lands producing or rea-
sonably presumed to contain oil or gas; or which is drilled for
the purpose of injecting fluids or gas for stimulating oil recov-
ery, re-pressurizing or pressure maintenance of oil or gas, or
disposing of waste fluids from an oil or gas field.
PERFORATED HORIZONTAL PIPE. An approved pipe
which contains a series of small holes or narrow openings
placed equidistant along the length of the approved pipe, which
is placed horizontally beneath the foundation of a building, for
the purpose of venting accumulated methane gas and prevent-
ing the development of elevated gas pressures, or for drainage
of ground water to an approved location.
PPMV. Shall mean Parts per Million by Volume.
PRESSURE SENSOR, shall mean a device that measures and
communicates surrounding gas pressure to an alarm or control
system.
SINGLE STATION GAS DETECTOR. A device consisting
of electrical components capable of measuring methane gas
concentration and initiating an alarm.
TRENCH DAM. An approved subsurface barrier installed
within a furrow or ditch adjacent to the foundation of a build-
ing, for the purpose of preventing the migration of methane gas
beneath that foundation.
UNOBSTRUCTED OPENING. A permanent clearing or gap
in the walls, floors or roof-ceiling assemblies without win-
dows, doors, skylights or other solid barriers that may restrict
the flow of air.
VENT RISER. An approved pipe which is placed vertically
with joints and fittings connected to perforated horizontal
pipes to convey and discharge the gas to the atmosphere.
SECTION 7103
GENERAL METHANE MITIGATION REQUIREMENTS
All new buildings and paved areas located in a methane zone or
methane buffer zone shall comply with these requirements and
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2008 CITY OF LOS ANGELES BUILDING CODE
643
1ETHANE SEEPAGE REGULATIONS
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the methane mitigation standards established by the Superin-
tendent of Building. The methane mitigation standards provide
information describing the installation procedures, design
pai'ameters and test protocols for the methane gas mitigation
system, which are not set forth in the provisions of this chapter.
Boundaries of the methane zones and methane buffer Zones
are shown on the "Methane and Methane Buffer Zones Map"
designated as Map number A-20960, dated September 21,
2003, which is attached to Council File No. 01-1305.
SECTION 7104
GENERAL METHANE REQUIREMENTS
7104.1 Site testing. Site testing of subsurface geological for-
mations shall be conducted in accordance with the methane
mitigation standards. The site testing shall be conducted under
the supervision of a licensed architect or registered engineer or
geologist and shall be performed by a testing agency approved
by the Department.
The licensed architect, registered engineer or geologist shall
indicate in a report to the Department, the testing procedure,
the testing instruments used to measure the concentration and
pressure of the methane gas. The measurements of the concen-
tration and pressure of the methane gas shall be used to deter-
mine the design methane concentration and the design methane
pressure. The design methane concentration and the design
methane pressure shall determine the site design level of Table
71.
Exception: Site testing is not required for buildings
designed to the requirements of Site Design Level V as
described in Table 71, or for buildings designed using the
exceptions set forth in Sections 7104.3.2 or 7104.3.3.
7104.2 Methane mlltigation systems. All buildings located in
the methane zone and methane buffer zone shall provide a
methane mitigation system as required by Table 71 based on
the appropriate site design level. The Superintendent of Build-
ing may approve an equivalent methane mitigation system
designed by an architect, engineer or geologist.
Table 71 prescribes the minimum methane mitigation sys-
tems, such as the passive, active and miscellaneous systems,
depending on the concentration and pressure of the methane
present at the site. Each component of the passive, active and
miscellaneous systems shall be constructed of an approved
material and shall be installed in accordance with the methane
mitigation standards.
7104.2.1 Passive system. The passive system is a methane
mitigation system installed beneath or near the building.
The components of the passive system may consist of a
dewatering system, the sub-slab vent system and impervi-
ous membrane. The sub-slab vent system shall consist of
perforated horizontal pipes, vent risers, and gravel blankets
for the purpose of collecting and conveying methane from
the soil underneath the building to the atmosphere.
7104.2,1,1 Dewatering system. The dewatering system is
used to lower the ground water table to a level more than 12
inches (305 mm) below the bottom of the perforated horizontal
pipes. The dewatering system shall conduct ground water to an
approved location.
7104.2.2 Active system. The components of the active sys-
tem shall consist of one or more of the following: sub-slab
system, gas detection system, mechanical ventilation, alarm
system and control panel. All components shall be con-
structed of an approved material, installed in accordance
with the methane mitigation standards.
7104.2.3 Miscellaneous system. The components of the
miscellaneous system may consist of trench darn, cable or
conduit seal fitting or additional vent risers. The component
of the miscellaneous system shall be a material approved by
the Department and shall be installed in accordance with the
methane mitigation standards.
7104.3 Exceptions to Table 71. The provisions of this section
are exceptions to the construction requirements of Table 7 1 .
7104.3.1 Narrow buildings. Narrow buildings may substi-
tute pressure sensors below the impervious membrane in
lieu of the gas detection system and mechanical ventilation,
if the installation of the pressure sensors below the impervi-
ous membrane is not required per Table 71 and the narrow
building is constructed with a minimum 2 feet (5 1 mm)
wide landscaped area covering at least 50 percent of the
ground immediately adjacent to the exterior building walls.
7104.3.2 Buildings with raised floor construction. If a
building with raised floor construction has underfloor venti-
lation construction in accordance with the standards below,
then the utilities shall be installed with trench dams and
cable or conduit seal fittings and a 4-inch (102 mm) thick
gravel blanket shall be installed under and around the eleva-
tor pits.
Underfloor ventilation shall be provided by an approved
mechanical ventilation system capable of exhausting under-
floor air an equivalent of every 20 minutes, or by openings
in the underfloor area complying with the following:
A. The top of the openings shall be located not more than
12 inches (305 mm) below the bottom of the floor
joists.
B. The openings shall be distributed approximately
equally and located to provide cross ventilation, for
example, by locating the opening along the length of
at least two opposite sides of the building.
C. The openings shall be the larger of:
1. Openings of not less than 1.5 square feet (0.13
m^) for each 25 linear feet (7620 mm) or frac-
tion of exterior wall; or
2. Openings shall be equal to 1 percent of under-
floor area.
D. The openings may be covered with corrosion-resis-
tant wire mesh with mesh openings of greater than V4
inch (6 mm) and less than V2 inch (13 mm) in dimen-
sion.
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644
2008 CITY OF LOS ANGELES BUILDING CODE
METHANE SEEPAGE REGULATIONS
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7104.3.3 Buildings with Natural Ventilation. A building
with natural ventilation is a building constructed with the
following:
A. The unobstructed openings shall exchange outside
air.
B. The size of the Unobstructed Opening shall be the
larger of:
1 . Opening equal to at least 25 percent of the total
perimeter wall area of the lowest level of the
building, or
2. Opening equal to at least 25 percent of the floor
area of the lowest level of the building.
C. The unobstructed openings shall be evenly distrib-
uted and located within the upper portion of at least
two opposite exterior walls of tiie lowest level of the
building.
Buildings with natural ventilation that are constructed as
described above shall have the utilities constructed with
trench dams and cable or conduit seal fittings. If there is an
enclosed room or space less than 150 square feet (14 m^)
within the building, then the enclosed room or space shall be
constructed with vent openings that comply with the
requirements of Section 7104.3.4.
7104.3.4 Enclosed room or space within building. Indi-
vidual enclosed rooms or enclosed spaces with floor area
less than 2,000 square feet (186 m^) may be exempt from
providing the active system as required by Table 71, pro-
vided the vent openings comply with all of the following:
1. Vent openings are unobstructed openings, except
screens made with at least V4-inch (6 mm) mesh or
wind driven turbines on the roof shall be permitted.
2. The aggregate size of vent openings shall be the larger
of either 5 percent of the total floor area of the room or
the area of enclosed space, or 10 percent of the area of
walls on the perimeter of the room or enclosed space.
3. The vent openings shall be located to prevent the
accumulation of methane gases within the room or
enclosed space.
4. The top of the vent opening shall be located not more
than 12 inches (305 mm) below roof joists or ceiling
joists if located in a wall of a building.
5. The vent openings shall be located on either two
opposite walls or two adjacent walls of the room or
enclosed space if located in a wall of a building.
6. The vent openings shall be located no more than 50
feet (15 240 mm) from any point within the room or
enclosed space.
7. When using wind driven turbine, the area of the vent
opening shall be calculated by the area of the opening
at the attachment of the wind driven turbine at the
roof.
8. When the vent opening is located in a wall of an
adjoining room, then the adjoining room shall be con-
structed of either an active system, or have natural
ventilation as described in Section 7104.3.3.
7104.3.5 Single family dwelling. Single family dwellings
and buildings accessory to single family dwellings shall
comply with all the methane mitigation requirements of
Table 71, except that the following mitigation system may
be substituted:
A. Pressure sensors below impervious membrane may
be installed in lieu of gas detection system when pres-
sure sensors below impervious membrane is not
required; or
B. Single station gas detectors with battery back-up may
be installed in lieu of alarm system and gas detection
system; or
C. Six-mil thick visquene may be used in lieu of impervi-
ous membrane, when the site design levels are I or II;
or
D. Additional vent risers or mechanical ventilation may
be omitted for buildings with width less than 50 feet
(15 240 mm) and footprint less than 6,000 square feet
(557 m^) in area; or
E. Vent risers may be substituted in lieu of mechanical
extraction system, provided the vent risers are
designed at a rate twice that established by the meth-
ane mitigation standards.
7104.3.6 Buildings located in the methane buffer zone A
building, located entirely or partially in the methane buffer
zone, shall be designed to the requirements of the methane
buffer zone. Buildings located in the methane buffer zone
shall not be required to provide any methane mitigation sys-
tem, if the design methane pressure is less than or equal to 2
inches (5 1 mm) of water pressure and is either of the follow-
ing:
A. Areas which qualify as Site Design Level I or II; or
B. Areas which qualify as Site Design Level III and the
utilities are installed with Trench Dams and Cable or
Conduit Seal Fitting.
7104.3.7 Dewatering System. A dewatering system is not
required for either of the following:
A. If during the site testing, the groundwater level is
deeper than 10 feet (3048 mm) below the perforated
horizontal pipes, or
B. If the soil investigation or analysis, as approved by the
Department, reveals the groundwater level is more
than 12 inches below the bottom of the perforated
horizontal pipes.
7104.3.8 Buildings located in the first phase playa vista
project. The First Phase Playa Vista Project, as approved by
the City on September 21, 1993 and December 8, 1995,
shall comply with the methane mitigation program as
required by the Department pursuant to the methane preven-
tion, detection and monitoring Program approved by the
Department on January 31, 2001, in lieu of the requirements
of this chapter.
7104.4 Paved areas Paved areas that are over 5,000 square feet
in area and within 15 feet (4572 mm) of the exterior wall of a
commercial, industrial, institutional or residential building.
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2008 CITY OF LOS ANGELES BUILDING CODE
645
iViETHANE SEEPAGE REGULATIONS
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shall be vented in accordance with the methane mitigation stan-
dards.
Exceptiomi: Paved areas located in the methane buffer zone
and which qualify for Site Design Levels I, II or III.
SECTION 7105
EXISTING BUILDINGS
Additions, alterations, repairs, changes of use or changes of
occupancy to existing buildings shall comply with the methane
mitigation requirements of Sections 7104.1 and 7104.2, when
required by Chapters 34, 81 or 82 of this Code.
Approved methane mitigation systems in existing buildings
shall be maintained in accordance with Section 7106.
SECTION 7106
TESTING, MADNTENANCE AND SERVICE OF
GAS-DETECTBON AND MECHANICAL VENTILATION
SYSTEMS
All gas detection and mechanical ventilation systems shall be
maintained and serviced in proper working condition and meet
all requirements of the Electrical and Mechanical Code. The
testing, maintenance and service procedure for each gas-detec-
tion and mechanical ventilation systems shall be performed in
accordance with the manufacturer's current written instruc-
tions and the following:
A. Fire department. The manufacturer's instructions shall
be approved by the fire department. Testing and servic-
ing of each system shall be performed by a person certi-
fied by the fire department.
B. Notification placard. A permanent notification placard
shall be posted and maintained at the front entrance of a
building that is constructed with impervious membrane,
except in residential buildings. The placard shall indicate
the presence of the impervious membrane.
SECTION 7107
EMERGENCY PROCEDURES
With the exception of single-family dwellings, all buildings
required by this chapter to have a gas-detection system or
sub-slab vent system shall, subject to fire department approval,
have established emergency procedures that include, but are
not hmited to, the following:
A. Assignment of a responsible person as safety director to
work with the fire department in the establishment,
implementation and maintenance of an emergency plan.
B. Conspicuous posting of the fire department's telephone
number in areas designated by the fire department.
C. Conspicuous posting of emergency plan procedures
approved by the fire department.
SECTION 7108
APPLICATION OF METHANE SEEPAGE
REGULATIONS TO LOCATIONS OR AREAS
OUTSIDE THE METHANE ZONE AND METHANE
BUFFER ZONE BOUNDARIES
Upon a determination by the Department of Building and
Safety that a hazard may exist from methane intrusion at a geo-
graphical location or in an area outside the boundaries estab-
lished in Section 7103 of this Code, the Department of
Building and Safety and the fire department may enforce any or
all of the requirements of Chapter 71 of this Code as required to
preclude potential fire or explosion from methane concentra-
tion.
SECTION 7109
ADDITIONAL REMEDIAL BV
7109.1 General remedial measures. In the event the concen-
tration of methane gas in any building located in a methane
zone or methane buffer zone reaches or exceeds 25 percent of
the minimum concentration of gas that will form an ignitable
mixture with air at ambient temperature and pressure, the
owner shall hire an engineer to investigate, recommend and
implement mitigating measures. These measures shall be sub-
ject to approval of this Department and the fire department.
7109.2 Abandoned oil well. Any abandoned oil well encoun-
tered during construction shall be evaluated by the fire depart-
ment and may be required to be reabandoned in accordance
with applicable rules and regulations of the Division of Oil,
Gas and Geothermal Resources of the State of California.
Buildings shall comply with these provisions and the require-
ments of Section 6105 of this Code, whichever is more
restrictive.
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646
2008 CITY OF LOS ANGELES BUILDING CODE
METHANE SEEPAGE REGULATIONS
TABLE 71
MINIMUM METHANE MITIGATION REQUIREMENTS
SITE DESIGN LEVEL
LEVEL 1
LEVEL II
LEVEL III
LEVEL IV
LEVEL V
Design Methane Concentration
(ppmv)
0-100
101-1,000
1,001-5,000
5,001-12,500
>12,500
Design Methane Pressure
(inches of water pressure)
#2
>2
#2
>2
#2
>2
#2
>2
All Pressures
H
in
>■
. >
1— 1
Dewatering System'
X
X
X
X
X
X
X
X
X
Sub-Slab Vent
System
Perforated
Horizontal Pipes
X
X
X
X
X
X
X
X
X
Gravel Blanket
Thickness Under
Impervious
Membrane
2"
2"
2"
3"
2"
3"
2"
4"
4"
Gravel Thickness
Surrounding
Perforated
Horizontal Pipes
2"
2"
2"
3"
2"
3"
2"
4"
4"
Vent Risers
X
X
X
X
X
X
X
X
X
Impervious Membrane
X
X
X
X
X
X
X
X
X
H
H
Sub-Slab System
Pressure Sensors
Below Impervious
Membrane
^
X
X
Mechanical
Extraction System ^
X
X
Lowest Occupied
Space System
Gas Detection
System ^
X
X
X
X
X
X
X
Mechanical
Ventilation 3- 4' 5
X
X
X
X
X
X
X
Alarm System
X
X
X
X
X
X
X
Control Panel
X
X
X
X
X
X
X
C/3
Trench Dam
X
X
X
X
X
X
X
X
X
Conduit or Cable Seal Fitting
X
X
X
X
X
X
X
X
X
Additional Vent Risers^
X
For SI: 1 inch = 25.4 mm.
X = Indicates a Required Mitigation Component
1. See Section 7104.3.7 for exception.
2. The mechanical extraction system shall be capable of providing an equivalent of a complete change of air every 20 minutes of the total volume of the gravel blanket.
3. See Section 7104.3.1 for narrow buildings.
4. The mechanical ventilation systems shall be capable of providing an equivalent of one complete change of the lowest occupied space air every 15 minutes.
5. Vent opening complying with Section 7104.3.4 may be used in lieu of mechanical \entilation.
6. The total quantity of installed vent risers shall be increased to double the rate for the passive system.
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2008 CITY OF LOS ANGELES BUILDING CODE
647
648 2008 CITY OF LOS ANGELES BUILDDIMG CODE
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CHAPTER 72
FIRE DISTRICT REGULATIONS
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SECTION 7200
PURPOSE
These fire district regulations were formerly found in Chapter
16.
SECTION 7201
GENERAL
7201.1 Fire I^istrict No. 1 boundaries. Fire District No. 1
shall include:
I. Downtown. All of the territory bounded by the following
streets or freeways:
1 . Harbor Freeway from the Santa Monica Freeway to
the Santa Ana Freeway;
2. Santa Ana Freeway from the Harbor Freeway to
Alameda Street;
3. Alameda Street from the Santa Ana Freeway to
Fourth Street;
4. Fourth Street from Alameda Street to Central Ave-
nue;
5. Central Avenue from Fourth Street to the Santa
Monica Freeway; and
6. Santa Monica Freeway from Central Avenue to the
Harbor Freeway.
II. Hollywood. All of the territory bounded by the following
streets:
1. Yucca Street from Highland Avenue to Gower
Street;
2. Gower Street from Yucca Street to De Longpre
Avenue;
3. De Longpre Avenue from Gower Street to Vine
Street;
4. Vine Street from De Longpre Avenue to Fountain
Avenue;
5. Fountain Avenue from Vine Street to Wilcox Ave-
nue;
6. Wilcox Avenue from Fountain Avenue to Sunset
Boulevard;
7 . Sunset B oulevard from Wilcox Avenue to Highland
Avenue;
8. Highland Avenue from Sunset Boulevard to Holly-
wood Boulevard;
9. Hollywood Boulevard from Highland Avenue to
Orchid Avenue;
10. Orchid Avenue from Hollywood Boulevard to
Franklin Avenue;
1 1 . Franklin Avenue from Orchid Avenue to Highland
Avenue;
12. Highland Avenue from Franklin Avenue to Yucca
Street;
13. All of the territory within 100 feet (30 480 mm) of
Hollywood Boulevard between Hillhurst Avenue
and La Brea Avenue; and,
14. All of the territory within 100 feet (30 480 mm) of
Sunset Boulevard between Hillhurst Avenue and
the city boundary line 190 feet (57 912 mm) west of
Havenhurst Drive.
III. Wilshire. All of the territory bounded by the following
streets:
1. Sixth Street from Western Avenue to Common-
wealth Avenue;
2. Commonwealth Avenue from Sixth Street to
Wilshire Boulevard;
3. Wilshire Boulevard from Commonwealth Avenue
to Catalina Street;
4. Catalina Street from Wilshire Boulevard to Eighth
Street;
5. Eighth Street from Catalina Street to Mariposa Ave-
nue;
6. Mariposa Avenue from Eighth Street to Seventh
Street;
7. Seventh Street from Mariposa Avenue to Ardmore
Avenue;
8. Ardmore Avenue from Seventh Street to Wilshire
Boulevard;
9 . Wilshire B oulevard from Ardmore Avenue to West-
em Avenue;
10. Western Avenue from Wilshire Boulevard to Sixth
Street; and
11. All of the territory within 100 feet (30 480 mm) of
Wilshire Boulevard between the eastern city bound-
aries of the City of Beverly Hills and the Harbor Free-
way, with the exception of the territory within 100
feet (30 480 mm) of Wilshire Boulevard located
between Wilton Place and Highland Avenue.
IV. Beverly Fairfax. All of the territory bounded by the fol-
lowing streets:
1. Beverly Boulevard from Fairfax Avenue to a point
120 feet (36 576 mm) west of Gardner Avenue;
2. A line 120 feet (36 576 mm) west of and parallel to
Gardner Avenue from Beverly Boulevard to Third
Street;
3 . Third Street from a point 120 feet (36 576 mm) west
of Gardner Avenue to Fairfax Avenue; and
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2008 CITY OF ILOS ANGELES BUILDING CODE
649
FIRE DISTRICT REGULATIONS
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4. Fairfax Avenue from Third Street to Beverly Boule-
vard.
V. Crenshaw. All of the territory bounded by the following
streets:
1. Crenshaw Boulevard from Thirty-ninth Street to
Stocker Street;
2. Stocker Street from Crenshaw Boulevard to Rosalia
Drive;
3. Rosalia Drive from Stocker Street to Marlton Ave-
nue;
4. Marlton Avenue from Rosalia Drive to Thirty-ninth
Street; and
5. Thirty-ninth Street from Marlton Avenue to
Crenshaw Boulevard.
VI. Century City., All of the territory bounded by the fol-
lowing streets:
1. Santa Monica Boulevard between Century Park
West and the westerly city boundary of the City of
Beverly Hills;
2. The westerly city boundary of the City of Beverly
Hills from Santa Monica Boulevard to Olympic
Boulevard;
3. Olympic Boulevard from the westerly city bound-
ary of the City of Beverly Hills to Century Park
West; and
4. Century Park West from Olympic Boulevard to
Santa Monica Boulevard.
Except that portion of the above-described territory
described as follows:
Beginning at the point of intersection of the centerline of
Olympic Boulevard and Century Park West, thence north-
westerly along centerline of Century Park West 791 feet,
thence N50° 29'00" E822.21 feet, thence S39° 29' 13"
E9.63 feet, thence S84° 29' 13" E29.59 feet, thence N50°
30'47" E19.00 feet, thence S39° 29' 13" E295.17 feet,
thence S35 38'00" E to the centerline of Olympic Boulevard
thence southwesterly along said center line to the point of
beginning.
For SI: 1 inch = 25.4 mm, 1 degree = 0.01745 rad.
yil. Westwood. All of the territory bounded by the follow-
ing streets:
1. Le Conte Avenue from Levering Avenue to
Tiverton Avenue;
2. Tiverton Avenue from Le Conte Avenue to the
intersection of Lindbrook Drive and Glendon Ave-
nue;
3 . Glendon Avenue from the intersection of Lindbrook
Drive and Tiverton Avenue to Wilshire Boulevard;
4. Wilshire Boulevard from Glendon Avenue to
Gay ley Avenue;
5. Gayley Avenue from Wilshire Boulevard to the
alley 200 feet (60 960 mm) north of Wilshire Boule-
vard;
6. The alley directly west of Gayley Avenue from a
point 200 feet (60 960 mm) north of Wilshire Boule-
vard and Weybum Avenue;
7. Weybum Avenue from the alley west of Gayley
Avenue to Gayley Avenue;
8. Gayley Avenue from Weybum Avenue to Levering
Avenue;
9. Levering Avenue from Gayley Avenue to Le Conte
Avenue;
10. All of the territory .within 100 feet of Wilshire Bou-
levard between Veteran Avenue and the westerly
city limits of the City of Beverly Hills; and
11. All of the territory within 1 00 feet of Wilshire Bou-
levard between Centinela Avenue and Federal Ave-
nue.
VIII. Van Nuys. All of the territory bounded by the follow-
ing streets:
1 . Vesper Avenue from Calvert Street to Victory Boule-
vard;
2. Victory Boulevard from Vesper Avenue to Sylmar
Avenue;
3. Sylmar Avenue from Victory Boulevard to Calvert
Street;
4. Calvert Street from Sylmar Avenue to Vesper Ave-
nue; and
5. All of the territory within 100 feet (30 480 mm) of
Van Nuys Boulevard between Victory Boulevard
and Sherman Way.
IX. Venice. All of the territory bounded by the following
streets:
1. Horizon Avenue from Ocean Front Walk to Pacific
Avenue;
2. Pacific Avenue from Horizon Avenue to Eighteenth
Avenue;
3. Eighteenth Avenue from Pacific Avenue to Ocean
Front Walk; and
4. Ocean Front Walk from Eighteenth Avenue to Hori-
zon Avenue.
X. San Pedro. All of the territory bounded by the following
streets:
1 . Fourth Street from Pacific Avenue to Harbor Boule-
vard;
2. Harbor Boulevard from Fourth Street to Seventh
Street;
3. Seventh Street from Harbor Boulevard to Beacon
Street;
4. Beacon Street from Seventh Street to Eighth Street;
5. Eighth Street from Beacon Street to Pacific Avenue;
and
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2008 CITY OF LOS ANGELES BUILDING CODE
FIRE DISTRICT REGULATIONS
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6. Pacific Avenue from Eighth Street to Fourth Street.
Except that portion of the above-described territory
described as follows:
Beginning at the point of intersection of the easterly line of
Mesa Street and the southerly hne of Fourth Street; thence
southerly along said easterly hne of Mesa Street to the north-
erly hne of the alley running parallel to said Fourth Street and
distant 155 feet (47 244 mm) southerly of the center line of
said Fourth Street; thence along the northerly line of said
alley to a point 498 feet (151 790 mm) from the easterly hne
of said Mesa Street; thence south 10 feet (30 480 mm) and
thence easterly to the westerly line of Centre Street; thence
northerly along said westerly line to the southerly line of said
Fourth Street; thence westerly along said southerly Une to the
point of beginning.
7201.2 Very high fire hazard severity zone. For the purpose of
this chapter, the very high fire hazard severity zone shall be con-
sidered a fire district. The very high fire hazard severity zone shall
be all of the territory so designated by the boundaries shown on
the very high fire hazard severity zone map as estabUshed in Sec-
tion 57.25.01 of the Los Angeles Municipal Code.
7201.3 Buildings overlapping fire district boundaries. Every
building or structure having any part of the building within a fire
district shall be deemed to be entirely in that fire district.
A building or structure located partly within two or niore fire
districts shall comply throughout with the more restrictive pro-
visions of each fire district.
SECTION 7202
ADDITIONS TO BUILDINGS
An addition may be made to any building in a fire district if the
added portion conforms to this chapter, and also if the entire
building, including the addition, is within the height and area
limits of Section 503 of this Code for building of like type and
occupancy.
Exception: An addition to a provisional structure shall not
be permitted.
SECTION 7203
GENERAL REQUIREMENTS
7203.1 General. In addition to the general requirements of this
code every building located in a fire district shall conform to
the requirements of this Chapter.
7203.2 Nonconforming buildings. Alterations and repairs to a
nonconforming building in a fire district shall conform to the
provisions of Chapters 81 and 86 of this Code.
The provisions of this subsection are subject to the roofing
requirements of Section 1503.
7203.3 Construction sheds and canopies. Construction sheds
and protection canopies may be erected in a fire district if there
is compliance with the other provisions of this Code.
7203.4 Projections from buildings. Projections from build-
ings conforming to the regulations of Chapter 32 of this Code
may be constructed in any fire district.
7203.5 Sprinklers. In every building in Fire District No. 1,
every story or basement with a floor surface elevation more than
four feet lower than the highest elevation of the floor landing or
tread of any required exit from that story shall be sprinklered.
Exception: Sprinklers need not be installed in locations
expressly exempt in Plumbing Code, provided other
approved fire-protection equipment is installed.
7203.6 Miscellaneous structures. In Fire District No. 1, iso-
lated structures constructed of noncombustible materials may
be unprotected if used for other than human occupancy.
Loading platforms having no roof and not over 48 inches
above the ground may be of wood.
Loading platforms shall be enclosed and shall be firestopped
into areas not exceeding 2,500 square feet (232 m^).
SECTION 7204
SPECIAL REQUIREMENTS FOR
FIRE DISTRICT NO. 1
7204.1 Types of construction permitted. Every building in
Fire District No. 1 shall be one of the following types:
Type I; Type II; Type III; or provisional structures as provided
in Section 7205 of this Code.
7204.2 Type IIB buildings. Every building of Type IIB con-
struction in Fire District No. 1, except provisional structures
allowed by this section, shall have at least 2-hour fire-resistive
construction for exterior walls within 10 feet (3048 mm) of and
facing a property line and shall have at least 1-hour fire-resis-
tive construction for exterior walls facing a property line and
less than 30 feet (9144 mm) distance from the property line.
Exception: These walls may be 1-hour less fire-resis-
tant-rated than specified here if the building is not more than
one story in height or more than 2,500 square feet (232 m^)
in area.
7204.3 Openings in exterior walls. In the following cases, all
openings in the exterior walls of buildings in Fire District No. 1,
other than provisional structures, shall be protected by a fire
assembly having a V4-hour fire-resistive rating when the exterior
wall is within 10 feet (3048 mm) of a fire separation distance.
7204.4 Roof covering. Roof covering in the fire district shall
conform to the requirements of Class A or B roof coverings as
defined in Section 1505.
7204.5 Structural fire rating. Walls, floors, roofs and their
supporting structural members shall be a minimum of 1-hour
fire-resistance-rated constructions.
Exceptions:
1. Buildings equipped throughout with an automatic
sprinkler system in accordance with Section
903.3.1.1 of this Code.
2. Automobile parking structures.
3. Buildings surrounded on all sides by a permanently
open space of not less than 30 feet (9144 mm).
4. Partitions complying with Section 603.1(8) of this
Code.
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651
FIRE DJSTRICT REGULATIONS
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7204.6 Exterior walls. Exterior load-bearing walls of Type II
buildings shall have a fire-resistance rating of 2 hours or more
where such walls are located within 30 feet (9144 mm) of a
coimnon property line or an assumed property line. Exterior
nonload-bearing walls of Type II buildings located within 30
feet (9 144 mm) of a common property line or an assumed prop-
erty line shall have fire-resistance ratings as required by Table
601, but not less than 1 hour. Exterior walls located more than
30 feet (9144 mm) from a common property line or an assumed
property line shall comply with Table 601.
ExceptioES In the case of one-story buildings that are 2,000
square feet (186 m^) or less in aiea, exterior walls located
more than 15 feet (4572 mm) from a common property line or
an assumed property line need only comply with Table 60 1 .
7204.7 Architectural trim.. Architectural trim on buildings
located in the fire district shall be constructed of approved
noncombustible materials or fire-retardant-treated wood.
7204.8 Permanent canopies. Permanent canopies are permit-
ted to extend over adjacent open spaces provided:
1 . The canopy and its supports shall be of non-combusti-
ble material, fire-retardant-treated wood. Type IV
construction or of 1-hour fire-resistance-rated construc-
tion.
Exception: Any textile covering for the canopy
shall meet the fire propagation performance crite-
ria of NFPA 701 after both accelerated water
leaching and accelerating weathering.
2. Any canopy covering, other than textiles, shall have a
flame spread index not greater than 25 when tested in
accordance with ASTM E 84 in the form intended for
use.
3. The canopy shall have at least one long side open.
4. The maximum horizontal width of the canopy shall
not exceed 15 feet (4572 mm).
5. The fire resistance of exterior walls shall not be
reduced.
7204.9 Roof structures. Structures, except aerial supports 12
feet (3658 mm) high or less, flagpoles, water tanks and cooling
towers, placed above the roof of any building within the fire
district shall be of noncombustible material and shall be sup-
ported by construction of noncombustible material.
7204.10 Plastic signs. The use of plastics complying with Sec-
tion 2611 for signs is permitted provided the structure of the
sign in which the plastic is mounted or installed is
noncombustible.
7204.1 1 Plastic veneer. Exterior plastic veneer is not permitted
in the fire district.
SECTION 7205
PROVISIONAL STRUCTURES
7205.1 Definitions, For the purposes of this section, "provi-
sional structure" shall mean any structure complying with the
provisions of this section.
7205.2 Size limit. A Type V provisional structure shall not
exceed 12 feet in its longest dimension, 12 feet in height, or 100
square feet in overall area, including any roof projection.
A Type IIB provisional structure shall not exceed 400 square
. feet in building area and shall not exceed 12 feet in height.
7205.3 Exterior walls. The requirements of Section 503 of this
Code shall not apply to provisional structures.
The exterior walls of a Type IIB provisional structure shall
not be required to have a fire-resistive time period of construc-
tion.
The exterior walls of a Type V provisional structure shall be
of one-hour fire-resistive construction.
Exception: The exterior walls of a Type V provisional struc-
ture, which is located on an automobile parking station lot,
are not required to have a time period of fire resistance if the
structure does not exceed 12 feet (305 mm) in its longest
dimension and 50 square feet (5 m^) in overall area, including
any roof projection and, provided further, that the structure
shall be used in conjunction with the business of operating an
automobile parking lot and shall maintain a setback from
every street front not less than one third of the lot depth.
7205.4 Location. A provisional structure shall be located not
less than 40 feet (1016 mm) from any building of Type IIB or
Type V construction.
7205.5 Parking lot structures. In lieu of a permanent founda-
tion, a provisional structure used as an automobile parking lot
office may be anchored to an asphalt slab by four or more
'/2-inch (12 mm) by 12-inch (305 mm) metal pins or equivalent
anchorage. Toilet facilities will not be required.
SECTION 7207
SPECIAL REQUIREMENTS FOR THE VERY HIGH
FIRE HAZARD SEVERITY ZONE
7207.1 Unenclosed under-floor areas. Residential buildings
shall have all under-floor areas completely enclosed to the
ground with construction as required for exterior walls.
Exceptions:
1 . Complete enclosure shall not be required where the
underside of all exposed floors and all exposed struc-
tural colunms, beams and supporting walls are pro-
tected as required for exterior 1-hour fire-resistive
construction.
2. The area under cantilevered balconies and unroofed
walking decks need not be considered as under-floor
area, provided exposed utilities, pipes or other
mechanical devices are not located in the area.
7207.2 Utilities. All utilities, pipes, furnaces, water heaters or
other mechanical devices located in an exposed under-floor
area of a residential building shall be enclosed with material as
required for 1-hour fire-resistant construction. Adequate cov-
ered access openings for servicing such utilities shall be pro-
vided as required by appropriate codes.
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2008 CITY OF LOS ANGELES BUILDING CODE
FIRE DISTRICT REGULATIONS
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7207.3 Attic openings. All exterior attic openings shall be pro-
tected with a maximum V4-inch (6 nam) noncombustible and
corrosion- resistant screen.
7207.4 Roofing. All buildings shall have a fire retardant roof-
ing assembly complying with the requirements of Class A roof
covering as defined in Section 1505 of this Code. Wood shakes
and shingle are not permitted in the very high hazard severity
zone.
SECTION 7208
PROHIBITED VEHICLES
No vehicle in Fire District Nos. 1 and 2 shall be used except as
permitted for a mobile home, travel trailer or camp car in a park
designed for that use or for an industrial catering truck as defined
in Section 202 of this Code. However, no person shall park an
industrial catering truck continuously at any location on private
property for the purpose of dispensing food or drink for a period
of time exceeding 1 hour, and regardless of the length of time
parked at any location, no person after departure from that loca-
tion shall again park an industrial catering truck at that location,
or at any location on private property within 500 feet (152 400
mm) of that location or private property, for the purpose of dis-
pensing food or drink within a period of 4 hours after departure.
2008 CITY OF LOS ANGELES BUILDING CODE
653
654 2008 CITY OF LOS ANGELES BUILDING CODE
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CHAPTER 81
EXISTING BUILDINGS AND
STRUCTURES - GENERAL REQUIREMENTS
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SECTION 8101
GENERAL PROVISIONS
8101.1 Purpose. The purpose of this chapter is to establish
minimum standards to regulate and encourage the proper
maintenance, use, repair, rehabilitation, alteration, addition
and relocation of existing buildings, structures and premises in
order to safeguard life, limb, health, property and public wel-
fare.
8101.2 Scope. The provisions of this chapter shall apply to all
or portions of existing buildings, structures or premises.
Exceptions:
1. Historical buildings may comply with Section 8119
of this Code.
2. Existing commercial or industrial buildings, for
which a building permit was issued prior to April 1,
1994, may be converted to "joint living and work
quarters" provided the existing building complies
with Chapter 85 of this Code.
SECTION 8102
ENFORCEMENT
8102.1 General. It shall be unlawful for any person, firm or
corporation to erect, construct, enlarge, alter, repair, maintain,
move, improve, remove, convert, demolish, equip, use or
occupy any existing building, structure, premises or portion
thereof in violation of the provisions of this chapter.
Any person who violates or causes or permits another person
to violate any provision or requirement of this chapter is guilty
of a misdemeanor. Any person includes an owner, lessor,
sublessor, manager or person in control of a building subject to
this chapter. The legal owner of a building is that person, firm,
corporation, partnership or other entity whose name or title
appears on record with the Los Angeles County Recorder's
Office.
8102.2 Occupant responsibility. It shall be unlawful for any
tenant or other individual occupying any dwelling unit, effi-
ciency dwelling unit, guest room or suite in a building to fail to
keep the dwelling unit, efficiency dwelling unit, guest room or
suite free from an accumulation of debris, filth, rubbish and
garbage.
8102.3 Penalties. Any person convicted of a misdemeanor due
to violation of any provision or requirement of this chapter is
subject to penalties as prescribed by Section ll.OO(m) of the
Los Angeles Municipal Code, which is quoted in part as fol-
lows:
"Every violation of this Code is punishable as a misde-
meanor unless provision is otherwise herein made, shall be
punishable by a fine of not more than $1,000.00 or by impris-
onment in the county jail for a period of not more than 6
months, or by both such fine and imprisonment.
Every violation of this Code which is provided for therein to
be an infraction is punishable by a fine as set forth in this Code
section, or as otherwise provided in this Code, not to exceed
$50.00 for the first violation, $100.00 for a second violation of
the same provision within one year, and $250.00 for each addi-
tional violation of the same provision within one year.
Each person shall be guilty of a separate offense for each and
every day during any portion of which any violations of any
provision of this Code is committed, continued or permitted by
such person and shall be punishable accordingly."
Nothing in this chapter or Code shall prohibit the payment of
investigative costs by any person so convicted of any provision
of this chapter, to the Department of Building and Safety to
restitute said agency for all costs expended to investigate
and/or enforce the provisions of this Code.
SECTION 8103
EXISTING BUILDING RIGHTS
8103.1 General. Every existing building or structure con-
structed under a valid permit and occupied in conformance
with code regulations and Department approvals in effect at the
time of such construction and occupancy shall be allowed to
continue to exist under those regulations and approvals even
though subsequently adopted regulations and approvals have
changed the requirements, provided the building, structure or
portion thereof does not become a nuisance, a hazardous build-
ing, or a substandard residential building, and that subse-
quently adopted regulation specifically applicable to existing
buildings or structures are met.
8103.2 Group I occupancy. Buildings classed in Group I
occupancy because of the use or character of the occupancy
that are not more than three stories in height, that were estab-
lished prior to March 4, 1972, and that have been continuously
operated as that use or character since that time shall comply
with Section 3413 of this Code.
SECTION 8104
BASIC MAINTENANCE AND REPAIR
OF EXISTING BUILDINGS AND PREMISES
Every existing building, structure, premises or portion thereof
shall be maintained in conformity with the code regulations
and Department approvals in effect at the time of such con-
struction and occupancy unless specifically exempt by written
approval of the Department.
Every existing building, structure, or portion thereof shall be
maintained in a safe and sanitary condition and good repair.
The premises of every building or structure shall be maintained
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2008 CITY OF LOS ANGELES BUILDING CODE
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EXISTING BUILDINGS AND STIRUCTURES - GENERAL REQUIREMENTS
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in good repair and free from graffiti, debris, rubbish, garbage,
trash, overgrown vegetation or other similar material.
1.1 All physical elements of every existing building, struc-
ture or portion thereof shall be maintained by cleaning, paint-
ing, staining, refmishing or other restorative means, in a
condition as close as reasonably feasible to their originally
required and approved state.
81(0)4.2 The interior of every existing building, structure and
portion thereof and the exterior wall surfaces and premises
thereof shall be maintained clean and free from accumulation
of debris, rubbish, garbage, trash, overgrown vegetation and
other similar material.
81®4.3 The roof of every building or structure shall be kept
waterproof and all devices which were provided to convey the
roof water from the roof shall be maintained so as to be capable
of fulfilling that purpose.
8104.4 The walls and ceilings of every room in every building,
stmctue or portion thereof shall be finished, sealed, coated,
painted, or covered in an approved manner so as to maintain
them in a clean and sanitary condition. Loose wallpaper or
other surfacing shall be removed or repaired so as to provide a
smooth, tight-fitting, clean and sanitary surface.
8104,5.1 The doors, windows, cabinets, frames and similar
finishes shall be finished, sealed, coated, painted or covered
in an approved manner so as to maintain them in a clean and
sanitary condition. Broken or cracked glass or plastics shall
be replaced. Tom, worn or broken screens shall be repaired,
replaced or removed, unless removal is otherwise prohib-
ited by the Code.
1.5.2 Legally required insect screens shall not be
removed for other than repair or replacement.
8104.6 The floor and floor covering of every room in every
building, structure or portion thereof shall be maintained in a
clean and sanitary condition. The floor and covering shall be
maintained free from defects, holes, loose, worn or missing
portions which could present a safety hazard to occupants.
J.7 The plumbing fixtures, shower enclosures, wastewater
drain lines, water supply lines, counters, drainboards and
adjoining wall and floor areas provided to protect against water
damage in every building or structure shall be maintained in
good repair and in a clean and sanitary condition.
Leaking drain or supply lines shall be repaired or replaced.
Cracked, chipped or damaged fixtures shall be repaired or
replaced. All surfaces provided to protect against water dam-
age shall be without cracks, defects or missing portions. All
fixtures, enclosures, counters and surfaces shall be kept in a
clean and sanitary condition free from dirty or foreign materi-
als.
8104.8.1 The electrical service, lines, switches, outlets, fix-
tures and fixture coverings and supports in every building or
structure shall be maintained in good repair. Broken, loose,
frayed, inoperative, defective or missing portions shall be
repaired or replaced. The fixtures, fixture coverings,
switches, and outlets shall be maintained in a clean and sani-
tary condition free from dirty or foreign materials.
8104.8.2 Unless specifically permitted in the Electrical
Code, flexible cords and cables shall not be used as a substi-
tute for the fixed wiring of a structure.
8104.8.3 Panelboards and fuseholders shall not be equipped
with fuses which exceed the rated ampacity of the protected
circuit.
8104.9 All plumbing and waste drain lines in every building or
structure shall be maintained clear of blockages which would
cause overflow at any fixture or cause any fixture to overflow
under the condition of normal water supply to that fixture.
8104.10.1 All water supply lines to kitchen and bathroom
fixtures shall be maintained so as to provide at least 1 gallon
per minute (3.785 L/min) rate of water flow, of at least 100°
F (38°C). However, the maximum temperature at the water
heater or storage tank need not exceed 140° F (60°C).
0.2 Hot water shall continue to be provided to each
residential kitchen and bathroom fixture at all times.
5.3 No time clock or other devices shall be installed
to prevent the supply of the required hot water to residential
rental units at any time.
8104.11 The existing central heating or individual unit heating
for each dwelling unit or guest room shall be maintained in
good repair and operable.
8104.12 The exterior wall surfaces of every existing building or
structure shall be maintained weathertight, in good repair and
in a clean and sanitary condition.
8104.13 All fences shall be maintained in good repair and shall
be kept straight, uniform and structurally sound. Wooden
fences shall be either painted or stained or otherwise treated or
sealed in an approved manner to prevent their becoming a nui-
sance from weathering or deterioration.
8104.14 All masonry units shall be maintained with head, bed
and wall joints solidly filled with mortar.
8104.15 The exterior of all privately owned buildings and
fences shall be free from graffiti when such graffiti is visible
from a public street or alley.
SECTION 8105
ILLEGAL BUILDINGS, CONSTRUCTDON AND USE
Every existing building, structure or portion thereof con-
structed without a building permit shall be made to conform to
the provisions of this Code or shall be demolished and
removed. Any use or occupancy existing in a building without
authorization of a building permit shall be discontinued and
removed or shall be made to conform to the provisions of this
Code.
SECTION 8106
FIRE DISTRICT REQUIREMENTS
8106.1 Alterations, repairs or rehabilitatiom. In any fu:e dis-
trict, alterations, repairs or rehabilitation to an existing building
may be of the same type of construction as the existing building
or structure, provided the aggregate value of such work in any 1
year does not exceed 10 percent of the replacement cost of the
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2008 CITY OF LOS ANGELES BUILDING CODE
EXISTING BUILDINGS AND STRUCTURES - GENERAL REQUIREMENTS
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building, and provided further, that no hazardous conditions or
substandard residential buildings are continued or created. Ret-
roactive provisions shall be applicable when specifically
required by this Code.
Alterations, repairs or rehabilitation in excess of 10 percent
of the replacement cost of the building or structure may be
made provided all of the work- conforms to this Code for a new
building of like area, height and occupancy in the same location
and that no hazardous conditions or substandard residential
buildings are continued or created in the remainder of the
building as a result of such work.
Whenever an existing building or structure has been dam-
aged, or is in need of repairs, alterations or rehabilitation
required by the Los Angeles Municipal Code in an amount
exceeding 50 percent of the replacement cost, the entire build-
ing or structure shall be made to conform to this Code or shall
be demolished.
All other alterations, repairs or rehabilitation shall comply
with the requirements of this Code.
Nothing shall be done to reduce the seismic stability of the
structure below the requirements set forth in Chapter 16.
8106.2 Additions. An addition may be made to any existing
building within any fire district if the added portion conforms
to this Code and if the entire building, including the addition, is
within the limit of area and height specified in Section 504 of
this Code for a building of like type and occupancy.
Exception: An addition to a provisional structure shall not
be permitted.
8106.3 Fire sprinklers. In an existing building in Fire District
No. 1 , every story which has a floor surface elevation more than
four feet lower than the highest elevation of the floor landing or
tread of any required exit from the story, and is used for keep-
ing, storing, manufacturing, repairing or processing any com-
bustible material, shall be sprinklered.
Exception; Building that is occupied only as a single-fam-
ily dwelling.
SECTION 8107
REQUIREMENTS OUTSIDE OF A FIRE DISTRICT
8107.1 Alterations, repairs or rehabilitation. Any alter-
ations may be made to any building in any location, provided
the building as altered conforms to the requirements of the Los
Angeles Municipal Code for new buildings in the same loca-
tion.
Exceptions:
1. Alterations or repairs to any existing nonconforming
building outside of every fire district may be of the
same type of construction as the existing building,
provided the aggregate value of such alterations or
repairs in any two-year period does not exceed 50 per-
cent of the replacement value of the building.
2. Alterations or repairs may be made to any building in
any location provided the new construction conforms
to that required for a new building of like area, height
and occupancy in the same location.
8107.2 Additions. An addition may be made to any existing
building outside of every fire district if the added portion con-
forms to the requirements of this Code and also if the entire
building, including the addition, is within the Umit of area and
height required by this Code for a building of like type and
occupancy.
SECTION 8108
NUISANCES, HAZARDOUS BUILDINGS AND
SUBSTANDARD RESIDENTIAL BUILDINGS
Existing buildings which have been determined to be nui-
sances, hazardous buildings or substandard residential build-
ings under Chapter 89 of this Code are subject to compliance
with all the requirements of this Code for a new building.
The Department may require an existing building which has
been determined to be a nuisance, a hazardous building, or a
substandard residential building to comply with all current
requirements of this Code for a new building, or may allow the
repair of the building without requiring compliance with all the
requirements of this Code for a new building where it is deter-
mined that the continuance of the existing condition does not
pose a substantial hazard to life, limb, health, property or pub-
lic welfare.
8108.1 Additional requirements for buildings determined
to be nuisances, hazardous or substandard residential
buildings. The Department may impose additional require-
ments for buildings determined to be nuisances, hazardous or
substandard residential buildings in order to address specific
conditions that affect proper maintenance, use, repair, rehabili-
tation, alteration and to safeguard Ufe, limb, health, property
and public welfare. If the Department determines to impose
additional requirements, the owner shall be notified that a hear-
ing has been scheduled before the Board of Building and
Safety Commissioners to determine if additional requirements
should be imposed.
8108.2 Notice of intent and public hearing. The notice of
intent to impose additional requirements and the notice to hold
a public hearing before the Board of Building and Safety Com-
missioners shall be given either by personal delivery thereof to
the person to be notified or by deposit in the United States mail
in a sealed envelope, postage prepaid, addressed to the person
to be notified at the address shown on the last equalized assess-
ment roll. Service by mail shall be deemed to have been com-
pleted at the time of deposit in the U. S. Mail. The failure of any
owner or person to receive the notice shall not affect in any
manner the validity of any of the proceedings taken thereunder.
Proof of giving any notice may be made by an affidavit of any
employee of the City which shows service in conformity with
this section.
The notice shall indicate:
1. The street address of the building or premise, or the
approximate street address if no street address has been
assigned.
2. That the condition of the building constitutes a nuisance,
hazardous or substandard residential building.
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3. The additional requirements to be imposed by the
Department.
4. Identify the need for the additional requirement.
5. That the owner must appear at a hearing conducted by
the Board, at a time, date and location specified in the
notice, which shall be at least 15 days from the date of the
notice.
6. That upon any such appearance, the owner will be given
the opportunity to present and to elicit testimony and
other evidence to show cause why the additional require-
ments should not be imposed.
7. That this appearance may be made by the submission of
written materials if they have been received by the City at
least three days prior to the scheduled hearing at the mail-
ing address specified in the notice.
8108.3 Public hearing. The matter shall be scheduled for hear-
ing before the Board on the date and time specified in the
notice. The Board shall proceed to determine whether addi-
tional requirements should be imposed.
The person notified to appear, or the actual owner of the par-
cel or premises in the event the person notified is not the owner,
or any person representing the owner who attends the hearing,
shall be given an opportunity to present and to elicit testimony
and any other evidence on whether the additional requirements
should be imposed. The Board shall proceed with the hearing
whether or not that person is in attendance. Written material
shall be considered by the Board if it is received at least three
days prior to the scheduled hearing date.
At the conclusion of the hearing, the Board shall make a
finding and determine whether the condition of the premises
warrants additional requirements in order to safeguard life,
limb, health, property and public welfare. The owner and any
other person who appeared at the scheduled public hearing on
behalf of the owner, either in person or by the submission of
written material, shall be notified in writing of the determina-
tion of the Board. Once the Board has acted, it shall have no fur-
ther jurisdiction over any matter relating to the imposition of
additional requirements on the premises. Any further determi-
nations in this regard, including requests for extensions of time,
shall be within the sole jurisdiction and discretion of the Super-
intendent of Building and not appealable to the Board.
SECTION 8109
RELOCATED BUILDINGS
Any building or structure moved into, out of or within the City
shall comply with the requirements of Chapter 83 of this Code.
SECTION 8110
UNREINFORCED MASONRY
BEARING WALL BUILDINGS
Existing unreinforced masonry be^iring wall buildings con-
structed or under construction prior to October 6, 1933, shall
conform to the requirements of Chapter 88 of this Code.
SECTION 8111
RESIDENTIAL HEATING
8111.1 Every residential unit which is rented or leased shall be
provided with approved heating facilities capable of maintain-
ing a room temperature of 70°F (21°C) at a point three feet
above the floor in all habitable rooms.
Where individual heating facilities are provided within a res-
idential unit, a rating of the facilities in B.T.U. equal to six
B.T.U. per cubic foot of habitable floor area shall be considered
as fulfilling the required temperature level. All gas heating
facilities shall be properly vented.
8111.2 Where the heating facilities cannot be activated by the
occupant of a residential unit, the owner shall activate the heat-
ing facilities whenever the residential unit temperature is 70°F
(21°C) or less. No time clocks or other devices shall be
installed to prevent the occupants of the residential unit from
activating the heating facility.
8111.3 A legally installed comfort heating appliance shall not
be removed or made inoperable.
SECTION 8112
RESIDENTIAL PLUMBING
When existing water heaters serving rental or lease residential
units are replaced, they shall be replaced with units which will
provide an overall equivalency or greater in water heater gallon
capacity and rate of heat recovery to the replaced units.
Any water heater which is relocated, reinstalled or newly
installed from the interior of the building to a location outside
the building shall be installed in an approved enclosure. Any
new water heater which is installed outside the building shall be
installed in an approved enclosure.
SECTION 8113
ROD BRACING SYSTEMS
Buildings constructed with adjustable steel rod bracing sys-
tems designed to transfer horizontal forces shall be subject to
inspection after completion of the building or structure for the
purpose of maintaining proper adjustments of the bracing
assembly. The owner shall be duly notified if adjustments are
found necessary and, upon the receipt thereof, shall cause
adjustments to be made satisfactory to the Department.
SECTION 8114
PARAPETS AND APPENDAGES
No building shall have any parapet or appendage attached to or
supported by an exterior wall of the building and located adja-
cent to a public way or to a way set apart for exit from a building
or passage of pedestrians, if such parapet or appendage is not so
adequately constructed, anchored or braced as to remain
wholly in its original position in event of an earthquake having
the effect designated by Chapter 16 of this Code.
Whenever the Department determines by inspection that an
existing parapet or appendage is not so adequately constructed,
anchored or braced as to remain wholly in its original position,
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658
2008 CITY OF LOS ANGELES BUILDING CODE
EXISTING BUILDINGS AND STRUCTURES- GENERAL REQUIREMENTS
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the Department shall, by written notice addressed to the owner,
person or agent in control of the building, designate and
describe the hazards and inadequacies of construction, anchor-
age or bracing determined by such inspection and direct that
the necessary corrections be made to ensure that all of the para-
pet or appendage remain in its original position. Upon receipt
of such notice, the owner, person or agent in control of the
building where such parapet or appendage exists, shall, within
one year from the date of such notice:
1. Submit to the Department suitable corrective plans;
2. Obtain the necessary alteration permit; and
3 . Complete all the work necessary or ordered. All the plans
thus submitted shall have the intent of eliminating the
parapet or appendage, or reconstructing such parapet or
appendage so that it will conform structurally with
. requirements of this Code, or strengthening such parapet
or appendage by bracing or other means so that it will
resist the forces of an earthquake and remain in its origi-
nal position.
Any person receiving a notice as set out in this subsection
may appeal from the notice of the Department in the manner
provided by Section 98.0403 of the Los Angeles Municipal
Code.
SECTION 8115
SANDBLASTING
No building or other structure shall be sandblasted except by a
wet process precluding the creation of dust and dry debris.
Inspection shall be made by the Department after scaffold-
ing and protective enclosure are in place and before work is
started.
Exception: Dry sandblasting may be permitted by the
Department only when evidence is submitted that this pro-
cess is necessary for the proper cleaning Of the building or
structure. No permission may be granted unless it can be
shown that the use of this process will not be detrimental to
adjoining property or public welfare.
SECTION 8116
SPECIAL PROVISIONS FOR
LIGHT-HOUSEKEEPING ROOMS
8116.1 GeneraL This chapter does not prevent the use of a
room as a light-housekeeping room in any building which was
erected prior to September 20, 1963, provided that such room
fully complies with the provisions of this subsection.
A light-housekeeping room is any room which is designed
and used both as a sleeping room and for the cooking or prepa-
ration of food.
8116.2 Special provisions.
8116.2.1 Light-housekeeping rooms shall contain not less
than 150 square feet (14 m^) in area and shall be occupied by
not more than two people. The cooking appliance therein, if
any, shall be used solely for the cooking or preparation of
meals for consumption by the occupants of the room.
Exception: A room having a superficial floor area of not
less than 120 square feet (11 m^) may he used for
light-housekeeping if it is occupied by only one person.
8116.2.2 The cooking appliances used therein, if any, shall
have no more than two burners. If electric appliances are
used, they shall have been tested and approved by the
Underwriters Laboratories. If gas appliances are used, they
shall have been tested and approved by the American Gas
Association.
8116.2.3 The installation, maintenance or use of said cook-
ing appliance shall not be hazardous to life, health or prop-
erty.
8116.2.4.1 Said cooking appliance shall rest upon its
own legs, or shall be an approved, built-in unit of fixed
installation. Said appliance shall be set not closer than 6
inches (152 mm) from any wall or projection thereof, and
shall rest upon an impervious surface.
8116.2.4.2 The walls behind and adjacent to said cook-
ing appliance shall be lined or back-flashed with
noncombustible material equivalent to V4-inch (305 mm)
asbestos mill board. The back-flashing shall extend from
12 inches (610 mm) below to 24 inches above the base of
the appliance. There shall be clear and unobstructed
space of 36 inches (914 mm) above the surface of the
cooking appliance.
Exception: Approved prefabricated kitchen units.
8116.2.5.1 Gas-burning appliances shall be connected to
the gas supply piping by approved metal piping with an
approved gas shutoff valve readily accessible within the
room, and maintained in accordance with the provisions
of the Plumbing Code.
Electrical appliances and serving circuits shall be
installed and maintained in accordance with the provi-
sions of the Electrical Code.
8116.2.5.2 Guest rooms, other than those legally con-
verted for light-housekeeping purposes, shall not contain
a fuel-gas-burning or electrically energized cooking
appliance.
8116.2.6 The room shall contain an approved sink with hot
and cold running water.
8116.2.7 An approved storage cabinet shall be installed in
the room. All food, dishes and cooking and eating utensils
shall be stored therein when not in use.
8116.2.8 The bed in such a room, or any drapes, curtains or
other readily combustible material shall be so located that
they do not come in contact with the cooking appliances, if
any.
8116.2.9 Any toilet room opening directly into such a room
shall have a tight-fitting door.
8116.2.10 An approved method of heating shall be installed
in each such room. Cooking appliances shall not be used for
the purpose of heating such rooms. No cooking appliance
shall be installed within a closet in such a room.
8116.3 Bath and water closet facilities. In any building con-
taining six or more light-housekeeping rooms, there shall be
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one water closet and one bath facility for each five units or frac-
tion thereof. In any building containing five or less light-house-
keeping rooms, there shall be one water closet and one bath
facility which may be in the same room for each three
light-housekeeping units in the building. Such toilet and bath
facilities shall be accessible to and from a public hallway.
SECTION 8117
FIRE WATCH
Whenever the Department of Building and Safety determines
by inspection that a violation affecting life safety from threat of
fire exists in an occupied building, the Department may require
that a fire watch be assigned to the building. The fire watch
shall be a licensed uniformed person chosen by the owner and
approved by the Department and shall perform duties in accor-
dance with the Department's fire watch procedures. The fire
watch shall remain in effect until all fire safety work is com-
pleted and approved by the Department. Any person who fails
to comply with a Department fire watch order shall be guilty of
a misdemeanor.
SECTION 8118
POOL WATER CLARITY
The recirculation and purification system of any swimming
pool, fish pond, or any other body of water which is required to
be fenced by Section 6109. 1 , shall be operated and maintained
so as to keep the water in such pool or other body of water clean
and of reasonable clarity.
In order to define reasonable clarity of the water in such
pool, pond or body of water, the following standard shall be
applied:
A painted black disk, 6 inches (152 mm) in diameter on a
12-inch by 12-inch (305 mm by 305 mm) white tile, placed at
the bottom of the pool at its deepest point, shall be clearly visi-
ble from the sidewalks around the pool from all distances up to
10 yai'ds (9 m) from such disk, or the water is determined to not
be of reasonable clarity.
SECTION 8119
HISTORECAL BUILDINGS AND STRUCTURES
Notwithstanding any other provisions of this Code to the con-
trary, the following provisions shall apply in addition to the
provisions of Title 24, Part 8 of the California Code of Regula-
tions, the State Historical Building Code.
8119.1 Additions, alterations and repairs. Additions, alter-
ations and repairs shall be made in accordance with the
nonconforming rights of Sections 8101.2, 8103 and 8107.
8119.2 Clhange of use or occupancy. Change of use or occu-
pancy shall comply with Sections 8203 and 8204 of this Code.
8119.3 Earthquake hazard buildings. Where the require-
ments of Chapter 88 of this Code are more restrictive than the
requirements of this chapter, the requirements of Chapter 88 of
the Code shall apply.
8119.4 Preservation of historical buildings.
8119.4.1 If the Department determines that any building,
structure, premises or portion thereof, (1) has been desig-
nated an historical monument or (2) is being considered as a
historical monument by the Cultural Heritage Commission,
and (3) is subject to vandalism, or unlawful entry, or has
become a hazardous building, nuisance or substandard
building, then the Department may cause the building,
structure, or premises or any portion thereof, to be immedi-
ately barricaded and protected by such means as the Depart-
ment may deem advisable, including the use of a
Department awarded contract.
8119.4.2 The Department may cause the building, structure
or premises, or any portion of the building, structure or pre-
mises, to be immediately barricaded or protected from fur-
ther deterioration. The barricading or protection may be
accomplished by any City department with the forces to per-
form the work, upon receipt of a request from the Depart-
ment, or by any forces under contract to the City. Where the
work is accomplished by other than City forces, the cost
shall be paid from the "Repair and Demolition Fund" as
established in Section 8906. All costs incurred pursuant to
this section shall be a personal obligation against the owner
of the property upon which the particular building or struc-
ture or any portion is located, recoverable by the City in an
action before any court of competent jurisdiction. These
costs shall include an amount equal to 40 percent of the cost
to perform the actual work, but not less than the sum of
$ 100.00, to cover the City's costs for administering any con-
tract and supervising the work required. In addition to this
personal obligation and all other remedies provided by law,
the City may collect any judgment, fee, cost, or charge,
including any permit fees, fines, late charges, or interest,
incurred in relation to the provisions of this section as pro-
vided in Sections 7.35.1 through 7.35.8 of the Los Angeles
Administrative.
8119.4.3 The administrative fee of 40 percent of the costs
shall not be included in the calculation of costs incurred for
or arising out of any barricading, or protecting, resulting
from an event or course of events that prompted a declara-
tion of a state of emergency, local emergency, war emer-
gency or major disaster by the Mayor, the Governor of the
State, or by the President of the United States.
8119.4.4 If the Department determines that the building,
structure, or premises or portion thereof is not in danger of
imminent deterioration or vandalism, then the Department
may, in lieu of the above, require the building, structure or
premises or any portion thereof to be secured, repaired or
protected pursuant to the provisions of Chapter 89 of this
Code.
8119.5 Vandalism of historical buildings. The Department
shall have the authority to issue an Order to Comply to an
owner of any building that has been designated an historical
monument or is being considered as an historical monument by
the Cultural Heritage Commission if the Department deter-
mines that the building has become subject to vandalism or
constitutes a public nuisance. In such circumstances, the
Department shall have the authority to issue any order it deems
appropriate to keep the property from being further vandalized
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660
2008 CITY OF LOS ANGELES BUDLDING CODE
EXISTING BUILDINGS AND STRUCTURES - GENERAL REQUIREMENTS
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or from becoming a public nuisance including, but not limited
to, ordering that the building be secured and fenced.
For the purposes of this provision, any building which has been
designated an historical monument or is being considered as an
historical monument by the Cultural Heritage Commission
shall include the interiors and exteriors of any accessory build-
ing located on an historic site.
8119.5.1 Security measures that the Department may order
shall include, but not be limited to, the following:
1. The installation of the maximum allowed height
under this Code of chain-link perimeter fencing with
top mounted horizontal pipe and razor wire, and at
least one securely-locked pedestrian gate and the
posting of "NO TRESPASSING" signs, pursuant to
Section 41.24 of the Los Angeles Municipal Code, at
25 -foot (7620 mm) intervals.
2. Steel or plywood closures, with 1-inch (25.4 mm)
diameter air holes, installed at all doors and windows.
(Sandwich panel installation shall be used so as to
avoid drilling into window frames and sashes, doors,
ornament or masonry units.)
3. The removal of all debris from the premises, includ-
ing but not limited to wood, paper, cans, bottles and
fecal matter.
Any temporary modifications required to be made to
secure the building shall be reversible.
8119.5.2 Any plans or proposals for work required to be
performed pursuant to an Order to Comply to secure any
building from being further vandalized or from becoming a
public nuisance must first be reviewed by the Cultural
Affairs Department to ensure that any work done to secure
the building will not damage or alter the historic character of
the building. This review by the Cultural Affairs Depart-
ment must be completed within ten working days from the
date any request for review is submitted. The Cultural
Affairs Department shall only disapprove a plan or proposal
to secure a building if the work will significantly damage or
alter the historic character of the building. If the work to be
performed includes substantial alteration, the procedures
set forth in Section 22.133 of the Los Angeles Administra-
tive Code shall be utilized for review by the Cultural Affairs
Department.
Failure to act upon a request for review within the time
periods set forth herein shall constitute a waiver by the Cul-
tural Affairs Department of the right to review plans or pro-
posals for the work to be performed. Work ordered to be
performed immediately pursuant to an Order to Comply, as
determined by the Department of Building and Safety, may
be commenced and completed without prior review by the
Cultural Affairs Department.
Nothing herein shall be interpreted to prohibit an owner
from taking immediate temporary measures to secure a
building from unauthorized entry.
8119.5.3 It shall be unlawful for any property owner to fail
to comply with any Order to Comply issued by the Depart-
ment under this provision.
8119.5.4 Additional remedies - notice of intention. In
addition to the remedies provided by this Code, should an
owner fail to comply with an Order to Comply, the Depart-
ment may take the necessary measures, including those
authorized under Sections 8903, 8904, and 8905 of this
Code, to immediately secure the property against vandalism
or prevent it from becoming a public nuisance. Prior to tak-
ing these measures, the Department shall send a Notice of
Intention to the owner pursuant to the provisions set forth in
Sections 8903.3.3 and 8903.3.4 of this Code.
Except for measures taken pursuant to Section 8905 of
this Code, when a Notice of Intention is issued under this
section, the provisions of Section 8903.3.5 through and
including Section 8903.4.3 shall also apply.
This provision is in addition to the remedies provided in
Sections 8903, 8904, and 8905 of this Code.
All costs incurred pursuant to this section shall be a per-
sonal obligation against the owner of the property, recover-
able by the City in an action before any court of competent
jurisdiction. These costs shall include an amount equal to 40
percent of the cost to perform the actual work, but not less
than the sum of $ 100.00, to cover the City's costs for admin-
istering any contract and supervising the work required. In
addition to this personal obligation and all other remedies
provided by law, the City may collect any judgment, fee,
cost, or charge, including any permit fees, fines, late
charges, or interest, incurred in relation to the provisions of
this section as provided in Sections 7.35.1 through 7.35.8
Los Angeles Administrative Code.
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2008 CITY OF LOS ANGELES BUILDING CODE
661
662 2008 CITY OF LOS ANGELES BUILDING CODE
CHAPTER 82
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CHANGE OF OCCUPANCY, USE AND RATING CLASSIFICATION
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SECTION 8201
GENERAL
Every change of occupancy, use and rating classification in any
existing building or structure shall conform to the construction
requirements for the group occupancy to be housed in the
building or structure or for the use to which the building or
structure is to be put, as set forth in this chapter.
SECTION 8202
CHANGE OF RATING CLASSIFICATION
An existing building within the scope of Chapter 88 of this
code shall not be changed from one rating classification, as
described in Section 8804, to another rating classification
unless the building meets or is altered to meet the requirements
of Chapter 88 for the proposed rating classification and the
building meets or is altered to meet the other requirements of
this code for the use or occupancy change.
SECTION 8203
CHANGE OF OCCUPANCY GROUP
OR GROUP DIVISION
Every change of occupancy to one classified in a different
group or a different division of the same group, as described in
Chapter 3 of this Code, shall require a new Certificate of Occu-
pancy whether or not any alterations to the building are
required by this Code. For the purpose of this subdivision, the
occupancy group and division of interconnected assembly
rooms shall be based on the total occupant load in such rooms.
If the building or portion thereof does not conform to the
requirements of this Code for the proposed occupancy group or
division, the building or portion thereof shall be made to con-
form. The Department may issue a new Certificate of Occu-
pancy without stating therein that all of the requirements of the
Code have been met and without requiring compliance with all
such requirements if it is found that the change in occupancy
group or division will result in no overall increase in hazard to
life, limb, health, property or public welfare.
Exceptions: Changes of occupancy group or division may
be made without establishing that the building complies
with current structural requirements of this Code under any
of the following conditions:
1 . In buildings constructed on or after October 6, 1933, a
change of occupancy group or division may be made
to establish any occupancy group or division pro-
vided the building is not substantially altered.
2. In buildings which are within the scope of Chapter 88,
a change of occupancy group or division may be
made to establish any occupancy group or division,
provided the building complies or is made to comply
with the requirements of Chapter 88.
3. Except for the Groups A, E, and I Occupancies, which
were constructed prior to October 6, 1933, and are not
within the scope of Chapter 88, a change of occu-
pancy group or division may be made to another of
equal or lesser hazard as listed below. A change to a
higher hazard occupancy group, or to a Group A, E or
I occupancy, shall not be made in buildings con-
structed prior to October 6, 1933, except for Type I
buildings as provided for in Item 4 of this exception.
Group U (least hazardous group)
Groups R-3 and R-3.1
Group S-2
Groups B, F, M, H and S-1
Groups R-1, R-2 and R-4
Groups A, E and I (highest hazard group)
4. In Type I buildings constructed prior to October 6,
1933 and not within the scope of Chapter 88, a change
to a higher hazard grouping (as listed in Item 3 of this
exception) or to a Group A, E, or I occupancy will be
individually considered, taking into account the gen-
eral structural requirements in effect at the time the
building was constructed, the structural system used
in the building, the condition of the structural system,
the proposed occupancy group or division, the occu-
pant load and other pertinent conditions.
If the building or portion thereof does not conform to the
requirements of this Code for the proposed occupancy group or
division, then a building permit is required and the application
for change of occupancy shall require a plan submittal. The
plan shall be of sufficient clarity to show that it conforms to the
requirements of this Code by showing the existing conditions
and proposed alterations in detail.
SECTION 8204
CHANGE OF USE
Every change of use or increased occupant load within the
same division of an occupancy group shall require compliance
with the provisions of Chapter 3 and the requirements of Chap-
ter 10 of this Code applicable to the proposed use or increased
occupant load.
Any assembly occupancy in a building constructed prior to
October 6, 1933, shall not be expanded or arranged to accom-
modate a larger number of occupants than that for which it was
previously authorized by the Department unless the entire
building conforms to the provisions of Chapter 16 or Chapter
88.
The Department may allow a change of use or increased
occupant load within the same division of an occupancy group
without requiring compliance with all the applicable require-
ments of the Code if it is found that the change in use or
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2008 CITY OF LOS ANGELES BUILDING CODE
663
CHANGE OF OCCUPANCY, USE AND RATSNG CLASSIFICATION
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increased occupant load as well as any conditions established
by the Department will not result in an overall increase in haz-
ard to life, limb, health, property or public welfare.
SECTION 8205
CERTIFICATE OF BUILDING COMPLIANCE
82(0)Sol GeneraL If the owner of an existing building desires to
determine whether the building is in compliance with applica-
ble sections of Chapter IX of the Los Angeles Municipal Code
for existing buildings, the owner may make application to the
Department for a Certificate of Building Compliance.
NONRESIDENTIAL BUILDINGS
}52 Fees. Before any application for such Certificate of
Building Compliance is accepted, a fee shall be paid by the
applicant to cover the cost to the City for the necessary inspec-
tion and report. The amount of the fee shall be as shown in
Table No. 82-A.
TABLE 82-A
CERTIFICATE OF BUILDING COMPLIANCE INSPECTION FEE
SECTION
FEE
Single-family dwelling or the first dwelling
unit on the premises
$185.00
Each additional dwelling unit on the premises
up to four units total
$105.00 per unit
Each dwelling unit in excess of four units
$68.00 per unit
Each guest room or light-housekeeping room
$47.00 per unit
*Inspection of buildings accessory to the residential building shall be included
as part of the inspection without an additional fee.
Noeresideetial Buildings*
AFFECTED FLOOR AREA
FEE
- 2,500 square feet
$315.00
2,501 - 5,000 square feet
$470.00
5,001 - 7,500 square feet
$500.00
7,501 -10,000 square feet
$600.00
Each additional 10,000 square feet or
fraction thereof
$210.00
AFFECTED FLOOR AREA
FEE
- 2,500 square feet
$300.00
2,501 - 5,000 square feet
$450.00
5,001 - 7,500 square feet
$500.00
7,501 - 10,000 square feet
$600.00
Each additional 10,000 square feet or
fraction thereof
$200.00
For SI: I square foot = 0.0929 ml
8205.3 Inspection procedures. After the application has been
accepted, the Department shall cause an inspection to be made
and a report prepared. If, after taking into account
nonconforming rights, the inspection report indicates that any
building or portion thereof does not conform to the require-
ments of Chapter IX of the Los Angeles Municipal Code, that
portion shall be made to conform.
When compliance has been secured, or if no corrections are
required as a result of the inspection report, the Department
will issue to the owner a Certificate of Building Compliance
stating that the building is now in substantial compliance with
the applicable provisions of Chapter IX of the Los Angeles
Municipal Code for existing buildings.
The issuance of this certificate shall not be construed by any
person to be a representation, guarantee or warranty of the pre-
mises for any purpose, including, but not limited to, fitness,
suitability, or freedom from defects, either latent or patent. Nor
is the issuance of this certificate to be construed to be a waiver
of any immunity provided to public entities and public employ-
ees under state law, including, but not limited to, those immuni-
ties provided by Division 3.6 of Title 1 of the California
Government Code.
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For Sr. 1 square foot = 0.0929 m-.
*Inspection of buildings accessory to the residential building shall be included
as part of the inspection without an additional fee.
664
2008 CITY OF LOS ANGELES BUILDIMG CODE
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CHAPTER 83
RELOCATION PERMIT
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SECTION 8301
GENERAL APPLICATION
8301.1 No person shall relocate or cause to be relocated any
building or structure into or within the City of Los Angeles
without complying with the provisions of Chapters I and IX of
the Los Angeles Municipal Code.
8301.2 Where a building or structure is to be relocated to a site
outside the City, only the provisions of Sections 8302. 1, 8302.3
and 8303.3 shall apply.
8301.3 The provisions of Section 93.0110 of the Electrical
Code, Section 94.103.1.1.2 of the Plumbing Code and Section
95.104.5 of the Mechanical Code shall apply to all buildings
moved into or within the City.
SECTION 8302
PERMITS REQUIRED- GENERAL
CONSIDERATIONS
LI Board off public works — permission required. No
person shall move any building or structure, or any portion
thereof, over, upon, along or across any street without a written
permit therefor from the Board of Public Works. Such permit
may be referred to as a "house mover's permit" and shall be
issued under the provisions of Sections 62.83.1 and 62.84 of
the Los Angeles Municipal Code.
8302.2 Department of building and safety — security
deposit and permit required.
8302.2.1 No house mover's permifshall be issued until the
Department of Building and Safety has first received a secu-
rity deposit as required pursuant to Section 8305 of this
Code.
8302.2.2 If the building or structure is to be moved to a per-
manent site within City limits, no house mover's permit
shall be issued until the Department of Building and Safety
has first issued to the owner or person having legal control of
the premises to which the building is to be moved, a permit
to relocate the particular building upon those premises.
Such permit shall be called a "relocation permit."
8302.2.3 If the building or structure is to be moved to a tem-
porary storage site within the City limits, no house mover's
permit shall be issued until the applicant furnishes evidence
to the Department of Building and Safety that the storage
site is within the proper zone pursuant to the provisions of
Article 2, Chapter I of the Los Angeles Municipal Code
(Zoning Code) and that a Certificate of Occupancy for land
use has been issued pursuant to the requirements of Section
12.26 E 2 of the Los Angeles Municipal Code.
8302.2.4 If the building or structure is to be moved to a site
outside City limits, no house mover's permit shall be issued
until the applicant furnishes evidence to the Department of
Building and Safety that the proposed location meets the
requirements of the jurisdiction.
8302.2.5 Prior to issuance of a relocation permit, an inspec-
tion shall be required to investigate the condition of the
building to be moved and to investigate the acceptability of
the proposed new location. Fees for such inspection shall be
paid by the applicant as specified in Section 8308.
8302.3 Department of building and safety — sewer-cap-
ping permit required. Where a building or structure is to be
removed from a lot within the City, no house mover's permit
shall be issued until the Department of Building and Safety has
first issued to the owner of such premises a permit to provide a
watertight cap to the house connection sewer at the property or
sewer easement line.
8302.4 Building relocation conditions.
8302.4.1 An apartment house or dwelling moved into or
within the City and all other buildings moved within the
City may retain the existing materials and methods of con-
struction, provided that in the new location the building con-
forms to the requirements of this Code with respect to fu-e
district requirements, under-floor ventilation and clearance,
underpinning, footings, foundations, occupancy require-
ments, and fire safety standards and does not become or
continue to be a substandard residential building.
A substandard residential building and any building other
than an apartment house or dwelling moved into the City
shall be made to conform to all of the requirements of this
Code for a new building in the same location within the City
and to all other applicable laws.
8302.4.2 The Department of Building and Safety may, in
granting any relocation permit, impose such terms and con-
ditions it deems reasonable and proper, including, but not
limited to, the requirements of maintenance corrections,
alterations or repairs to be made to the building or structure
so that the relocation thereof will not be materially detri-
mental or injurious to public safety or to public welfare or to
the property and improvements within a radius of 1 ,000 feet
(304 800 mm) from the site to which it is be relocated.
SECTION 8303
PERMIT APPLICATION - PLANS AND
SPECIFICATIONS
8303.1 Every application to the Department of Building and
Safety for a relocation permit shall be in writing upon a form
furnished by that Department and shall set forth such informa-
tion as that Department may reasonably require in order to
carry out the purposes of this Chapter.
8303.2 Each such application shall be signed by the person
owning or having legal control of the site upon which the build-
ing or structure is to be relocated, and prior to any appeal or the
issuance of any permit there shall be filed fully delineated
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2008 CITY OF LOS ANGELES BUILDING CODE
665
RELOCATION PERfWIT
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working drawings, electrical and mechanical plans and com-
plete specifications. Such working drawings, plans and specifi-
cations shall show all new construction, materials, fixtures and
fittings and any alterations, repairs or additions to be made to
existing construction. Such plans shall also include floor plans,
elevations and necessary construction details so as to show
conformity with the intent of this ordinance. Such drawings,
plans and specifications shall, in addition to the requirements
of Section 106.3.3 of this Code, show all site preparation, grad-
ing and improvements.
The applicant shall assume all responsibility for the prepara-
tion and completeness of said plans. In the event the City elects
to complete the building or to demolish the building under the
provisions of the Los Angeles Municipal Code, the City
reserves the right to interpret errors or omissions or supply
missing information on the plans. The City shall not be respon-
sible for the performance of the work done under any contract
entered into to complete or demolish the building.
8303.3 Any lot within the City from which a building or struc-
ture is moved shall be cleared of all debris resulting from such
removal. The footings and foundation walls shall be removed
to grade and the lot shall be graded as necessary to provide
drainage to a street, gutter or other approved location. A demo-
lition permit shall be secured by the owner to authorize this
work.
SECTION 8304
SPECIAL CONDITIONS UNDER WHICH
A PERMIT WILL NOT BE ISSUED
No permit shall be issued to relocate any building or structure,
if any one of the following conditions exist:
1 . It is unfit for human habitation or is so dilapidated, defec-
tive or in such condition of deterioration or disrepair that
its relocation at the proposed site would cause apprecia-
ble harm or be materially detrimental to the property or
improvements in the neighborhood within a radius of
1,000 feet (30 480 mm) from the proposed site.
2. Because of age, size, design, architectural treatment or
proposed location on the lot, the building does not sub-
stantially conform to the general design, plan, location
on the lot and construction of the buildings located in the
neighborhood within a radius of 1 ,000 feet (30 480 mm)
from the proposed site so that its relocation would be
materially detrimental to the property or improvements
in said neighborhood.
3. The proposed use is prohibited by the zoning laws of the
City.
4. Whenever the applicant is currently in default, as deter-
mined by the Department, on one or more relocation per-
mits.
SECTION 8305
GUARANTEE OF COMPLETION REQUIRED
LI Relocation permit. No relocation permit shall be
issued unless the applicant therefore shall first post with the
Department of Building and Safety a bond in an amount equal
to the cost of the work required to be done, plus an additional 25
percent, guaranteeing compliance with all conditions of the
permit and completion of all work described in the plans and
specifications therefor, as estimated by the Department of
Building and Safety. The applicant may post either a surety
bond or cash bond or negotiable United States Treasury Certifi-
cates of the kind approved by law for securing deposits of pub-
lic money.
The bond shall be executed by the applicant as principal and,
if a surety bond, shall also be executed by a corporation autho-
rized to act as surety under the laws of the state of California.
The bond shall be a joint and several obligation and shall be
conditioned upon the faithful performance of all terms and
conditions of the permit and of all work described in the plans
and specifications therefor to the satisfaction of the Depart-
ment of Building and Safety. The bond shall contain the further
conditions that should the applicant fail to complete all such
work within the time specified on the permit, the City may, at
its option, cause all of such work to be done or completed in
accordance with the terms and conditions of the permits and the
plans and specifications therefor on file with said Department,
or demolish the building.
The parties executing the bond shall be firmly and continu-
ously bound for the payment of all the costs necessary to com-
plete the work or demolish the building under all terms and
conditions of the bond. The cost shall include the cost to com-
plete the work or demolish the building, including any cost to
monitor or remove asbestos, plus an amount equal to 40 percent
of the cost to cover the cost to the City of administering the con-
tract and supervising the work required.
Whenever the applicant elects to deposit cash or approved
negotiable United States Treasury Certificates, the City shall be
authorized in the event of any default on the part of the appli-
cant to use any or all of the cash or approved negotiable certifi-
cates to cause the work to be done and for the payment of all
costs thereof. The term of the bond shall begin on the date of the
deposit of the cash or negotiable certificates or the filing of the
surety bond, and shall end upon the date of the completion to
the satisfaction of the Department of all such work. The fact of
such completion shall be evidenced by a written statement
thereof signed by the Superintendent of Building and thereafter
the cash deposit or certificate shall be returned to the applicant,
or the surety bond released, as the case may be.
Whenever the City elects to have such work done because of
the applicant's default, the amount of the deposit or certificates
in excess of all cost of such work shall be returned to the appli-
cant after the work has been so approved.
Exception: No bond need be posted in any case where the
Department shall determine that the only relocation
involved is that of moving a building temporarily to the reg-
ularly occupied business premises of a house mover, or that
of moving a building to adjacent property of the same
owner. The exceptions herein made shall not apply unless
the Department further finds that no such security is neces-
sary in order to assure compliance with the requirements of
this section.
8305.2 Security deposit. No house mover's permit shall be
issued to any house mover pursuant to the terms of the Sections
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2008 CITY OF LOS ANGELES BUILDING CODE
RELOCATION PERMIT
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62.62 through 62.93 of the Los Angeles Municipal Code, inclu-
sive, until the applicant therefor shall have deposited with the
Department of Building and Safety a security deposit of $2.00
per square foot of total floor area of all buildings, as stated in
the application provided for in Subsection A of Section 62.84
of the Los Angeles Municipal Code.
In lieu of the specific deposit for each application, any house
mover may make and maintain a general deposit in the sum of
$3,000.00 which shall be used for the same purposes asthe spe-
cific deposit mentioned in this section.
If, for any reason, the move as authorized by the house
mover's permit is not completed within 30 days of the date of
issuance and it becomes necessary for the Department of
Building and Safety to either remove or demolish the building
or structure, the cost of so doing plus an administrative fee of
40 percent shall be deducted from the aforementioned deposit.
The remainder of such deposit, if any, shall be refunded to the
person making such deposit, or to his or her assignees.
In case the deposit shall not be sufficient to pay the cost of
removal or demohtion, or of the costs of repairs, if any, the per-
son making such deposit shall, upon demand, pay to the
Department of Building and Safety a sufficient sum to cover all
such cost. Upon failure to pay such sum, it may be recovered by
the City in any court of competent jurisdiction.
SECTION 8306
TERMS OF PERMIT
Every relocation permit issued under the provisions of this sec-
tion shall contain each and every term ad condition imposed by
the Department of Building and Safety; shall be valid for a
period not to exceed 120 days, unless extended by said Depart-
ment or by the Board, in case an appeal is made to it under Sec-
tion 98.0403.2 of the Los Angeles Municipal Code; and shall
become null and void without further notice or order upon the
expiration of such time or any extension thereof, or upon any
default in the performance of any of the aforesaid terms or con-
ditions.
SECTION 8307
DEFAULT IN PERFORMANCE OF CONDITIONS OR
TERMS OF PERMITS - FAILURE TO COMPLETE
8307.1 Whenever the Department of Building and Safety finds
that:
1. A building has not been lowered onto its foundation
within 60 days after issuance of the relocation permit;
2. A default has occurred in the performance of any term or
condition of the relocation permit; or
3 . The applicant has failed to complete the work required as
specified by the permit, plans and/or specifications
approved for the project within the time prescribed, the
Department shall be authorized to give notice to the
applicant and to the surety, if any, to complete the work
or perform the condition within a specified additional
time, not to exceed 60 days. Such notice shall be served
upon the applicant and the surety, if any, by certified mail
and shall be deemed to have been so served when placed
in the United States mail, postage prepaid and addressed
to such person. No person shall fail or refuse to comply
with such notice. However, such notice may be complied
with by demolishing and removing the building or struc-
ture and restoring the site within the time prescribed, at
the option of the applicant or the surety, as the case may
be.
8307.2 If the applicant or the surety fails or refuses to comply
with any notice within the time prescribed, the Department
shall be authorized to cause the building or structure to be
demolished or the work to be completed, whichever it shall
determine is reasonable under the circumstances, without fur-
ther notice or order. The cost of completing the work or demol-
ishing the building, including the cost of any monitoring or
removal of asbestos, plus the 40 percent administration and
supervision cost, shall be paid for out of the cash deposit or
negotiable United States Treasury Certificates posted with the
Department, or from the Repair and Demolition Fund, if no
deposit or certificate has been posted. All sums used for this
purposes out of the Repair and Demolition Fund shall be recov-
ered from the surety under the surety bond provided for above.
Any work to be performed by the Department under the provi-
sions of this section shall be done in accordance with the estab-
lished public works practices of the City of Los Angeles. If the
Department uses any money in the Repair and Demolition
Fund for the completion or demolition of any building under
the provisions of this section, the Department shall notify the
surety, and the surety shall immediately thereafter reimburse
the City of Los Angeles therefor under the surety bond. The
City Attorney is authorized to and shall institute any action nec-
essary to the recovery of the money under the surety bond pro-
vided for above.
SECTION 8308
PERMIT FEES
8308.1 Before any application for a relocation permit is
accepted, a fee shall be paid by the applicant of the cost to the
City for the investigation of the condition of the building to be
moved and the inspection of the proposed new location. The
amount of the fee shall be as shown in Table No. 83- A for each
main building or for the first accessory building where no main
building is to be relocated.
Where an accessory building, in addition to a main building
or the first accessory building where no main building is to be
moved, is to be relocated from the same location to the same
site at the new location, an application fee of $80.00 shall be
paid for each such accessory building.
8308.2 In the case of a building located outside the City limits
of the City of Los Angeles, an additional fee of $525.00 shall be
paid for each application. In addition to the fee, a mileage
charge of 65 cents per mile (1609 mm) shall be paid for any
inspection which is made 10 miles (16 090 mm) or more
beyond City limits. Mileage shall be measured in a straight line
from the point 10 miles beyond the City limits which is nearest
to the location of the building to be inspected, to the location of
the building, and return to said point of departure.
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2008 CITY OF liOS ANGELES BUILDING CODE
667
RELOCATBON PERWIBT
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8308.3 The application fees required by Sections 8308.1 and
8308.2 shall be in addition to the regular building permit fee
required by Section 107.2.
8308.4 Should a relocation permit be denied by the Department
solely because the proposed relocation site is not approved, the
applicant may, with the consent of the Department, file within
six months of the date of the original application an amended
application for approval of a new proposed site. An additional
fee of $300.00 for each such amended application will be
charged. If a relocation permit is not obtained within 6 months
after the original application fee is paid, a new application shall
be filed and a new application fee paid before the relocation
permit is issued.
L5 The provisions of this subsection shall not apply to the
relocation of temporary buildings or structures to be used by a
governmental agency for a governmental purpose.
SECTION 8309
EMTRY UPON PREWIISES
P.l The Department, the surety, and the duly authorized
representatives of either shall have access to the premises
described in the relocation permit for the purpose of inspecting
the progress of the work.
).2 In the event of any default in the performance of any
term or condition of the relocation permit, the surety, or any
person employed or engaged on its behalf, or the Department,
or any person employed or engaged on his or her behalf shall
have the right to go upon the premises to complete the required
work or to remove or demohsh the building or structure.
h3 It shall be unlawful for the owner or the owner's repre-
sentatives, successors or assignees, or any other person to inter-
fere with or obstruct the ingress or egress to or from any such
premises of any authorized representative or agent of any
surety or of the City engaged in the work of completing, demol-
ishing or removing any building or structure for which a reloca-
tion permit has been issued after a default has occurred in the
performance of the terms or conditions thereof.
TABLE NO. 83-A
BASIC RELOCATIOM APPLICATION FEE SCHEDULE
FLOOR AREA OF BUILDING
FEE
- 2,500 square feet
$770.00
2,501 - 5,000 square feet
$1160.00
5,001 - 7,500 square feet
$1350.00
7,501 - 10,000 square feet
$1535.00
Each additional 10,000 square feet
$300.00
For SI: 1 square foot = 0.0929 ml
668
2008 CITY OF LOS ANGELES BUILDING CODE
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CHAPTER 85
ALTERNATIVE BUILDING STANDARDS
FOR JOINT LIVING AND WORK QUARTERS
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SECTION 8501
GENERAL
8501.1 Purpose. The purpose of this chapter is to provide alter-
native building standards for the conversion of existing build-
ings, or portions thereof, from commercial or industrial uses to
joint living and work quarters. The alternative standards are
designed to provide a reasonable level of safety to the building
occupants, and are in conformance with the provisions of Sec-
tion 17958. 11 of the Health and Safety Code.
8501.2 Application. Nothing in this chapter shall be construed
to allow the reduction of the seismic or fire and life safety ele-
ments of an existing building, where such elements provide a
greater level of protection than the minimum requirements
established by this chapter.
The alternative building standards of this chapter may be
applied when the commercial or industrial uses in an existing
building are converted (change of use or occupancy) to joint
living and work quarter(s) provided:
A. General fire and life safety requirements for all exist-
ing buildings. All existing buildings that are converted
to joint living and work quarter(s) shall comply or be
made to comply with all of the building area, height,
number of stories, type of construction, occupancy,
means of egress and other fire and life safety require-
ments of this code for a new building of the same use or
occupancy, except as provided in this chapter.
B. Structural requirements for Chapter 88 buildings.
For existing buildings which are within the scope of
Chapter 88, a change of occupancy or use of any portion
of a building constructed prior to October 6, 1933, to a
joint living and work quarter may be permitted provided
the building complies or is made to comply with the
structural requirements of Section 8502.12.1 of this
Code.
C. Structural requirements for existing buildings other
than Chapter 88 buildings. For all other buildings, the
change of occupancy or use of any portion of an existing
building to a joint living and work quarter may be per-
mitted provided the entire building complies or is made
to comply with all the structural requirements of this
code for a new building, except as provided in Section
8502.12 of this Code.
8501.3 Definition. For the purpose of this chapter, certain
terms are defined as follows:
ARTIST-IN-RESIDENCE. An artist or artists using a
space within a building for combined living and artistic
working purposes.
EXISTING BUILDING. A building for which a building
permit was issued prior to April 1, 1994.
FEMA 351, "RECOMMENDED SEISMIC EVALUA-
TION AND UPGRADE CRITERIA FOR EXISTING
WELDED STEEL MOMENT-FRAME BUILDINGS."
The July 2000 edition prepared by the partnership of the
Structural Engineers Association of California, the Applied
Technology Council, and the Cahfomia Universities for
Research in Earthquake Engineering (SAC) Joint Venture
for the Federal Emergency Management Agency, Washing-
ton, DC.
FEMA 352, "RECOMMENDED POST-EARTH-
QUAKE EVALUATION AND REPAIR CRITERIA
FOR WELDED STEEL MOMENT-FRAME BUILD-
INGS." The June 2000 edition prepared by the partnership
of the Structural Engineers Association of California, the
Applied Technology Council, and the California Universi-
ties for Research in Earthquake Engineering (SAC) Joint
Venture for the Federal Emergency Management Agency,
Washington, DC.
FEMA 356, "PRESTANDARD AND COMMENTARY
FOR THE SEISMIC REHABILITATION OF BUILD-
INGS." The November 2000 edition prepared by the part-
nership of the Structural Engineers Association of
California, the Applied Technology Council, and the Cali-
fornia Universities for Research in Earthquake Engineering
(SAC) Joint Venture for the Federal Emergency Manage-
ment Agency, Washington, DC.
GUIDELINES FOR SEISMIC RETROFIT OF EXIST-
ING BUILDINGS. The July 2001 edition of the Guidelines
for Seismic Retrofit of Existing Buildings, published by the
International Conference of Building Officials, 5360 Work-
man Mill Road, Whittier, California 90601-2298.
JOINT LIVING AND WORK QUARTER. A residential
occupancy of one or more rooms or floors used as a dwell-
ing unit with adequate working space reserved for, and reg-
ularly used by, one or more persons residing therein
pursuant to Health and Safety Code (H&S) Section
17958.11(a).
QUALIFIED HISTORICAL BUILDING. Any building
deemed of importance to the history, architecture or culture
of any area by an appropriate local, state or federal govern-
mental jurisdiction. This shall include designated buildings
on, or determined eligible for, official national, state or local
historical registers or official inventories, such as the
National Register of Historic Places, California Register of
Historical Resources, State Historical Landmarks, State
Points of Historical Interest, and official adopted city or
county registers, inventories, or surveys of historical or
architecturally significant sites, places or landmarks.
STATE HISTORICAL BUILDING CODE. A set of code
standards known as Part 8, Title 24 of the California Code of
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2008 CITY OF LOS ANGELES BUILDING CODE
669
ALTERNATIVE BUILDING STANDARDS FOR JOINT LIVING AND WORK QUARTERS
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Regulations and published as the California Historical
Building Code.
8501.4 General. A joint living and work quarter shall not be
used for public sales purposes or for instructional classes when
either is inconsistent with residential use. No hazardous activi-
ties siich as, but not limited to, welding, open flame, or storage
of flammable liquids shall occur in the joint living and work
quarter.
Exception: In buildings three stories or less in height, activ-
ities such as welding, open flame, or minimal storage of
flammable liquids may be allowed provided written
approval is obtained from the fire department.
All buildings containing a joint living and work quarter shall
have a sign posted in a conspicuous location at each entrance to
the building. The sign shall be constructed of a durable weath-
erproof material and shall meet the requirements of Los
Angeles Fire Department Standard No. 58. In the lower white
diamond of the sign, a red colored letter "A" shall be placed so
as to meet the size and letter thickness specified in the Los
Angeles Fire Department Standard No. 58.
If any portion of an existing building is converted to a joint
living and work quarter, then the entire building, including any
portion not being converted, shall comply with all of the
requirements of the code for a new building of the same use and
type of construction, except as provided in this chapter.
SEC
ALTERNATIVE STANDARDS
8502.1 Use or occupancy. When applying this chapter, a joint
living and work quarter shall be classified as Group R, Division
1 occupancy and comply with all Group R, Division 1 occu-
pancy requirements of the Code, except as provided in this
chapter. Not more than 33 percent of the total floor area of a
joint living and work quarter shall be used or arranged for resi-
dential purposes, such as sleeping area, cooking space, sanitary
facilities and closet areas.
8502.1.1 Ceiling height Existing ceiling height within a
joint living and work quarter may be maintained, provided
the ceiling height is not less than 7 feet (2134 mm), except
that the ceiling height above a mezzanine may be 6 feet 6
inches (1981 mm) to any structural projections from the
ceiling.
8502.1.2 Emergency escape. Every room below the fourth
story where occupants sleep in a joint living and work quar-
ter shall be provided with an emergency escape or rescue
window or door, which complies with the requirements of
Section 1026 of this Code.
Exception: The emergency escape or rescue window or
door may open directly into an existing court, provided:
A. The court is accessible to the fire department.
B. The court is provided with a minimum of one
direct exit to a corridor, exit stairway, exit passage-
way, exterior exit stairway, exterior exit balcony,
or exterior exit ramp, or existing fire escape. The
existing fire escape shall be structurally sound and
shall not serve as an exit for an assembly use.
C. All openings in walls surrounding the court shall be
protected as required by Section 704.3 of this Code
or be provided with an approved water curtain.
8502.2 Exterior wall and exterior opening protection.
Existing construction of the exterior walls may be maintained
without complying with current exterior fire resistive wall con-
struction.
Existing unprotected exterior openings, which are not
allowed or are required to be protected due to their proximity to
a property line, may be maintained without complying with the
requirements of Section 704.8 of this Code provided the open-
ings are protected with an approved water curtain. Openings in
the exterior walls that are not allowed by Section 704.8 of this
Code due to their proximity to a property line, may not be used
to satisfy other code requirements, such as, light and ventila-
tion, smoke control or emergency escape.
8502.3 Smoke control system. Existing high-rise buildings
shall provide a smoke control system in all portions of the
building including basements. The smoke control system shall
meet the requirements of Section 909 of this Code or all the
requirements of this section.
Exception: The following areas are exempt:
A. New or existing rooms less than 50 squai^e feet (4.6
m^) in area.
B. New or existing rooms located at or above grade level
provided the room has a direct exit to the exterior of
the building.
C. Floor levels with openable windows or breakable
tempered glass panels in the exterior walls. The area
of the openable windows or breakable tempered glass
panels shall be a minimum of 20 square feet (2 m^) in
area. The openable windows or breakable tempered
glass panels shall be located in the exterior walls
around the perimeter of the floor no more than 50 lin-
ear feet (15 240 mm).
8502.3.1 Capacity. Smoke-control systems shall provide at
least six air changes per hour for all areas within the building
including basements, provide exhaust to the exterior of the
building, and provide an adequate makeup air supply that is
uniformly distributed.
8502.3.2 Smoke dampers. If a smoke-control system
serves more than one floor, then smoke dampers shall be
installed in the main exhaust air ducts and the main supply
air ducts serving each floor and shall comply with the acti-
vation requirements of Section 716.3.2.1 of this Code. The
smoke dampers shall be installed in a manner that will pre-
vent the movement of smoke from one floor to another floor
when the dampers are closed. The vertical risers of the main
exhaust air duct shall be installed in metal ducts complying
with the requirements for product-conveying ducts in Chap-
ters 5 and 6 of the Mechanical Code.
In the fire-fighter's control panel, all smoke dampers
within the same smoke-control zone shall be actuated by
one On-Auto-Off switch in accordance with Section
909.16.3 of this Code, except that an alternate actuation
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2008 CITY OF LOS ANGELES BUILDING CODE
ALTERNATIVE BUILDING STANDARDS FOR JOINT LIVING AND WORK QUARTERS
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method may be allowed when approved by both the fire
department and the Department.
Combination fire and smoke dampers, and smoke damp-
ers shall be listed to conform to UL 555 and they shall be
accessible for inspection, service and repair. Pneumatic tub-
ing to operate these dampers shall be of noncombustible
materials.
8502.3.3 Fire-fighter's control panel. The fire-fighter's
control panel shall comply with all the requirements of Sec-
tion, 909.16 of this Code, except that graphically depicted
representation of the building may be omitted when
accepted by the fire department. The fire-fighter's control
panel shall monitor and be capable of overriding the
mechanical test panel. The mechanical test panel is a sepa-
rate control panel that provides controls and displays the
status of the ventilation fans, dampers, and other smoke
control devices as required by Section 909 of this Code and
shall be located in the same room as the fire-fighter's control
panel.
8502.3.4 Performance test. Upon completion and before
final approval of the installation of a smoke-control system
required by this Code, a smoke control performance test,
complying with the testing procedures of Section 909. 18 of
this Code shall be used to verify the rate of air-flow and
proper operation as specified in this chapter. Tests shall be
conducted in the presence of both the fire department and
the Department.
Prior to conducting the required smoke control perfor-
mance test, a preliminary performance report shall be sub-
mitted to the Department by a person holding a Certificate
of Qualification as required by Section 909. 1 8 of this Code,
verifying that the performance criteria of the Department
have been met.
8502.3.5 Additional smoke control requirements. Existing
air conditioning and ventilation systems may be used as part
of the smoke-control system. Existing return air plenum and
approved fiberglass air ducts may be used as part of the
smoke-control system. A smoke exhaust system shall be
designed in a manner that will prevent smoke from going
from one room to another, except when two or more rooms
are connected together by means of a permanent unob-
structed opening at least 20 square feet (1 .9 m^) with a mini-
mum 3 feet (914 mm) dimension, then the rooms shall be
considered as one room for the purpose of designing the
smoke-control system.
8502.4 Fire-extinguishing system. Fire sprinkler system,
standpipe system and water storage tank shall be provided as
required for a new building of the same height, type of con-
struction and occupancy, except that a high-rise building for
which a building permit was issued prior to July 1, 1974, that
may comply with the fire safety standards of Section 8604 of
this Code.
The fire sprinkler system, if required, shall be installed in
accordance with NFPA 13 as adopted by the Plumbing Code.
8502.5 Fire alarm system. If a fire alarm system is required by
Section 907.2.8 or 907.2.12.2 of this Code for a new building
of the same type of construction and occupancy, or installed at
the option of the owner, then the entire building shall have fire
alarm systems that are in full compliance with Section 907.2.8
of this Code. In a high-rise building, the fire alarm systems
shall be supplied by a generator used as an emergency system
in accordance with Section 403.11 of this Code. For all other
buildings, an alternate source of power may be used provided it
is approved by both the fire department and the Department.
High-rise buildings shall be provided with a central control
station (fire control room) that complies with all the require-
ments of Section 403.8 of this Code and Section 57.118.02 of
the Fire Code including the minimum room dimensions of 10
feet by 10 feet (3048 mm by 3048 mm).
8502.6 Fire pumps and generator (combustion engines and
gas turbines) rooms. In high-rise buildings, diesel or/and elec-
tric fire pumps shall be provided as required for a new building,
except that a high-rise building for which a building permit was
issued prior to July 1 , 1 974, may comply with Section 8604.6.5
of this Code.
Fire pump and generator (combustion engines and gas tur-
bines) rooms shall be separated with a minimum 1-hour occu-
pancy separation from adjoining rooms and from each other.
Combustion air and room ventilation air shall be required by
the building and mechanical codes, except that the room venti-
lation exhaust may be considered as environmental air.
In rooms containing diesel fire pumps and generators, a flue
venting system shall be provided which complies with the
requirements of Chapter 8 of the Mechanical Code, except that:
A. Clearance from the flue venting system to any combusti-
ble material may be reduced to 6 inches (152 mm) if the
vent is wrapped with an approved insulation equivalent to
2- hour fire-rated assembly for high-rise buildings and 1-
hour fire-rated assembly for all other types of buildings;
B. The flue venting system may terminate at the exterior
wall of the building provided the exhaust outlet is located
at least: 10 feet (3048 mm) above adjacent grade, 10 feet
(3048 mm) from the property line or center line of a pub-
lic way, 10 feet (3048 mm) from any opening into the
building, and extending out at least 3 feet (1828 mm)
from the exterior wall of the building, or
C. The flue venting system may terminate under the roof
overhang, provided the exhaust outlet is located lower
than the overhang by a distance equal to the projection of
the overhang.
8502.7 Means of egress. The portion of the building converted
to a joint living and work quarter shall be provided with means
of egress as required by Chapter 10 of this Code for a new
building, except that the alternative requirements of Sections
8502.7.1 through 8502.7.5 may be used in lieu of the require-
ments in Chapter 10 of this Code. An existing fire escape that is
in good operating condition, may be used as a second means of
egress, provided the fire escape does not serve as an exit for an
assembly occupancy. n
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8502.7.1 Corridors. All public corridors serving the occu-
pants of the joint living and work quarter shall comply with
all the requirements of Section 101 7 of this Code, except as
follows:
A. Existing nonconforming fire-resistive walls and ceil-
ing of a corridor constructed of wood lath and plaster,
which are in good condition, may be acceptable as
equivalent to the required 1-hour fire-resistant con-
struction.
B. Existing doors between the corridor and the joint liv-
ing and work quarter that are part of the historic fabric
of a qualified historical building may be allowed to
remain provided approved smoke gaskets and
self-closing and latching devices to prevent smoke
penetration are installed on the door, or the existing
door shall be replaced with a door conforming to the
requirements of Section 1017.1 of this Code.
C. Glazing elements that are part of the historic fabric of
a qualified historical building and located in corri-
dors, may be allowed to remain provided the fixed
transoms, glass doors and other glazed openings are
provided with smoke gaskets, and one layer of
Vg-inch (16 mm) type "X" drywall on the room side or
other acceptable fire rated protection.
8502.7.2 ]Dead=end corridors. An existing dead-end corri-
dor which exceeds 20 feet (6096 mm) in length and serves
the occupants of a joint living and work quarter may remain,
provided the dead-end corridor complies with all of the fol-
lowing:
A. The dead-end corridor shall be constructed as
described above in Section 8502.7.1 for the full
length of the dead-end corridor.
B. The dead-end corridor shall not exceed 40 feet (1219
mm) in length.
C. A door with a magnetic hold-open device shall be
placed across the corridor to create a vestibule located
furthest from the open end of the dead-end corridor.
The placement of the door shall be located not more
than 20 feet (6096 mm) from the open end of the
dead-end corridor and the occupant load of the vesti-
bule shall be less than 10 occupants.
8502.7.3 Means of egress illuminatiom and exit signs.
Means of egress illumination, exit signs, floor-level exit
signs and exit path markings serving a joint living and work
quarter shall comply with Sections 1011 and 1006 of this
Code.
8502.7.4 Exit stairway. All exit stairways shall be enclosed
and shall comply with all the requirements of Section 1020
of this Code. Existing exit stairway enclosures may be
allowed to pass through the first-floor elevator lobby, pro-
vided an approved fire-rated smoke-sealed door is placed in
front of the elevator door on the first floor or there is another
exit stairway enclosure leading directly to the public way.
8502.7.5 Pressnrizatlom of exit stairway enclosure. If
pressurization of exit stairway enclosure is required, then a
mechanical ventilation system shall be provided. The
mechanical ventilation system shall provide a uniform air
velocity of not less than 50 feet per minute (0.25 m/s ) while
maintaining a positive pressure [not exceeding 25 pounds
force (2750 N) on an interior door] relative to the adjacent
areas and discharging this air to the outside of the building.
The mechanical ventilation system shall be activated
simultaneously with the fire sprinkler system or the smoke
detector system. The mechanical ventilation system shall be
supplied with primary and secondary sources of power. The
primary power shall be provided by the power system sup-
plied by the public utilities. The secondary power shall be
from an approved standby source complying with the Elec-
trical Code.
8502.8 Accessibility (Disabled Access). The conversion of an
existing building or portion thereof to a joint living and work
quarter(s) shall be considered residential occupancy for the
purpose of applying accessibility (Disabled Access) require-
ments. Inasmuch as there are no public sales and no access to
the public, any portion of a building that is converted to a Joint
living and work quarter(s) and any area of the building that
serves the the joint living and work quarter(s) is not required to
comply with disabled access requirements of Chapter 11 A.
8502.9 Interior environment. All habitable rooms in the joint
living and work quarter shall be provided with natural light and
ventilation by means of exterior glazed openings.
8502.9.1 Light. Windows or skylights with a total area not
less than one fifteenth of the floor area of the room may be
used to satisfy the natural light requirements. Kitchens may
be provided with artificial light.
8502.9.2 Ventilation. Habitable rooms shall be provided
with natural ventilation by means of openable exterior open-
ings with an area of not less than one thirtieth of the floor aiea
of the room. In lieu of required openable exterior openings, a
mechanical ventilation system may be provided.
Public corridors or hallways shall be provided with an
adequate ventilation system when all the habitable rooms in
the joint living and work quarter on the floor do not have
openable exterior openings that comply with the require-
ments of Section 1203.1 of this Code.
Adequate ventilation system for the public corridors shall
mean either openable exterior window or permanent exte-
rior opening having a minimum area of 5 square feet (0.46
m^), or a mechanical ventilation system that complies with
the requirements of Sections 8502.14 and 1203.1 of this
Code.
8502.9.3 Light and ventilation court. A window may open
into an existing court for light and ventilation, provided the
court is has adequate access at the bottom of the court for
cleaning purposes. Every court more than two stories in
height shall be provided with a horizontal air intake at the
bottom of the court from the court to the exterior of the
building, unless the court opens to a yard or public way.
The horizontal air intake shall not be less than 10 square
feet (0.93 m^) in cross-sectional area and shall lead to the
exterior of the building. The construction of the horizontal
air intake shall be as required for the court walls of the build-
ing, but in no case shall be less than 1 -hour fire-resistant
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2008 CITY OF LOS ANGELES BUILDING CODE
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construction. A mechanical ventilation system complying
with the Mechanical Code may vent the court in lieu of the
horizontal air intake.
Exception: When approved by the Superintendent of
Building, an existing court may be deemed adequate for
the purpose of providing light and ventilation based upon
the area and height of the court.
8502.10 Sound transmission insulation. Existing construc-
tion may remain without complying with the soiind transmis-
sion insulation requirements for any newly created joint living
and work quarter. All new construction shall comply with
sound transmission requirements of Section 1207 of this Code.
8502.11 Energy conservation. All new HVAC and new light-
ing systems shall comply with the current energy conservation
requirements contained in Part 6 of Title 24 of the California
Code of Regulations (California Energy Code). An Existing
Building with a joint living and work quarter need not comply
with the building envelope requirements of the California
Energy Code, if the Building Envelope is not altered in anyway
due to compliance with other code requirements.
8502.12 Structural design requirements (seismic provi-
sion). The conversion of any portion of an Existing Building to
a joint living and work quarter shall be considered a "substan-
tial alteration" when applying Exception 1 of Section 8203 of
this Code.
All existing buildings (including those specifically stated in
Sections 8502.12.1 through 8502.12.4 of this Code) shall be
analyzed for 75 percent of the design earthquake ground
motion, as defined in Section 1613.2 of this Code and as speci-
fied in Section 1613.5 of this Code, but in no event shall there
be a reduction in the capacity of the seismic force resisting sys-
tem where that system provides a greater level of protection
than the minimum requirements established by this chapter.
Performance-based engineering analysis and design proce-
dures may be used to evaluate the existing structure and the
design of strengthening elements when approved by the Super-
intendent of Building. All structural elements of the building
shall be strengthened to meet the minimum design analysis as
specified in Sections 8502. 1 2. 1 through 8502. 1 2.4 of this Code
or new structural elements shall be added when required. All
new structural elements shall meet current detailing require-
ments of Section 1604 of this Code.
Other types of buildings not mentioned in this section, such
as steel frame buildings with semi-rigid beam-column connec-
tions, dual systems with steel moment frames and concrete
shear walls, or steel frame buildings with steel bracing shall
comply with the standards developed by the Department.
8502.12.1 Unreinforced masonry bearing wall buildings
(URM), Unreinforced masonry brick buildings shall com-
ply with the requirements of Chapter 88 of this Code, except
that a moment-resisting frame shall not be used with an
unreinforced masonry wall in a single line of resistance
unless the moment-resisting frame is designed to carry 100
percent of the lateral forces designated in Chapter 88 of this
Code and the story drift ratio is limited to 0.0025.
The use of Appendix Chapter 1 of Part 10 of the Califor-
nia Code of Regulations Title 24 (California Code for
Building Conservation) is permitted when approved by the
Superintendent of Building.
8502.12.2 Reinforced concrete buildings and concrete
frame buildings with and without masonry infill walls.
Reinforced concrete buildings or concrete frame buildings
with or without masonry infill walls and that are within the
scope of Section 9502 of this Code shall comply with all the
provisions of Chapter 95 of this Code.
Exception: When approved by the Superintendent of
Building, the Guidelines for Seismic Retrofit of Existing
Buildings may be permitted as an alternate standard to
strengthen reinforced concrete buildings and concrete
frame buildings with and without masonry infill walls.
8502.12.3 Steel frame buildings with masonry infill
walls. Steel frame buildings with masonry infill walls shall
be made to comply with the standards as developed by the
Department and all the provisions of Chapter 95 of this
Code except for the following: Item A of Section 9509.6 of
this Code, Items 1 and 2 of Section 9509.7.2 of this Code,
and Sections 9509.9 and 9511.5.1 of this Code.
8502.12.4 Welded steel moment-frame (WSMF) build-
ings. All buildings constructed prior to March 7, 1995, utiliz-
ing WSMF as their primary lateral force resisting system
shall be evaluated by the standards developed by the Depart-
ment.
All existing WSMF buildings, which have experienced
greater than 0.25g-peak ground acceleration and which were
constructed prior to March 7, 1995, shall be evaluated using
procedures and repair criteria of FEMA 352, "Recom-
mended Post-earthquake Evaluation and Repair Criteria for
Welded Steel Moment-Frame Buildings." An engineering
report shall be submitted to the Department. The engineering
report shall either substantiate that the existing steel moment
framed connections are in good condition, or recommend
repair procedures for the welded steel moment-frame con-
nections that are cracked or otherwise compromised.
8502.13 Electrical systems. All electrical systems and instal-
lations for a joint living and work quarter and other alterations
in adjoining areas shall be designed in accordance with the
Electrical Code except that the general lighting in the joint liv-
ing and work quarter shall be installed based on the unit load of
6.5 volt-amperes per square foot. The load calculation and wir-
ing installation in a joint living and work quarter shall be as
required for the residential occupancy.
8502.14 Mechanical systems. All mechanical systems shall
comply with the requirements of the Mechanical Code. The ven-
tilation system for the corridor shall be designed independently
of the ventilation system for the joint living and work quarter or
any other adjoining rooms. When a corridor is divided by the
placement of self-closing door(s), the ventilation system shall be
designed for each portion of the corridor, except when the doors
have magnetic hold-open devices, the adjoining corridors may
be considered as one space for the purpose of designing the ven-
tilation system. An existing heating and/or cooUng system may
be used in lieu of the ventilation system for the corridor, pro-
vided the heating and/or cooling system is independent from the
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2008 CITY OF LOS ANGELES BUILDING CODE
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ALTERNATIVE BUILDING STANDARDS FOR JOINT LIVING AND WORK QUARTERS
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LA ter or from any other adjoining rooms.
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LA 8502.15 Elevators, Existing elevators need not comply with
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j-A required to comply with the State Elevator Safety Order of
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j-^ nia Code of Regulations. Existing freight elevators shall not be
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L^ buildings may use the State Historical Building Code.
674 2008 CITY OF LOS ANGELES BUILDING CODE
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CHAPTER 86
SPECIAL PROVISIONS FOR EXISTING BUILDINGS
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SECTION 8601
GENERAL
In addition to the general requirements of Chapter 81, every
building housing occupancy classifications specifically speci-
fied in a section of this chapter shall conform to the require-
ments of that section.
SECTION 8602
GROUP E OCCUPANCIES
8602.1 Scope. This section shall apply to every lawfully exist-
ing Group E occupancy housed in a building constructied prior
to July 1,1961.
8602.2 Certificate of Occupancy.
8602.2.1 Revocation. The Certificate of Occupancy for any
lawfully existing Group E occupancy housed in a building
constructed prior to July 1, 1961, may be revoked by the
Department as follows if, upon inspection, the building is
found in violation of requirements of this section:
1 . If the violations, defects or hazards found to be exist-
ing therein are immediately dangerous to the public
health, safety or general welfare, and if effective
repair is not commenced within 180 days after the
issuance of an order to do so by the Department; or
2. If the violations, defects or hazards found to be exist-
ing therein are not of such a nature as described
hereinabove, and effective repair is not commenced
within five years after the issuance of an order to do so
by the Department.
8602.2.2 Issuance. A new Certificate of Occupancy shall be
issued for any lawfully existing Group E occupancy housed
in a building constructed prior to July 1 , 1961 , if such build-
ing is either made to comply with all of the requirements of
this Chapter, or is made to comply with the requirements of
Sections 8602.6, 8602.7 and 8602.8.
8602.3 Other laws. Except as otherwise specifi^cally provided
for herein, this section does not repeal, alter or modify any
other provisions of this Code.
8602.4 Violation. It shall be unlawful for any person to use or
permit the use of any building for a Group E occupancy:
8602.4.1 After a Certificate of Occupancy has been revoked
in accordance with the provisions of Section 8602.2 after
July 1, 1961;
8602.4.2 In any case where a Certificate of Occupancy has
not been issued, unless the building is constructed in full
conformity with all other applicable provisions of this
Code; or
8602.4.3 Unless such building is constructed, operated,
used and maintained as required by this section.
8602.5 Alternate methods. The Department may, after refer-
ral to and report from the Fire Department, approve alternate
methods of obtaining the equivalent fire protection and safety
required by this section, provided the Department finds that the
existing condition of the building under consideration makes
strict conformity impracticable and that such alternate methods
are within the purpose and intent of this section.
8602.6 One-story buildings. One-story buildings shall con-
form to the requirements of this section and Section 305.1.
8602.7 Buildings over one story.
8602.7.1 Type V buildings two stories or more in height
shall not be used to house Group E Occupancies unless such
buildings are completely sprinklered.
Exception: Complete sprinklers are not required where
the Group E occupancy is only in the first story of a
two- story building and the Group E occupancy conforms
to the requirements of a one-story building as set forth in
this section.
8602.7.2 Every building over one story in height shall have
sprinklers installed in all hallways, stair shafts, stairways,
basements, laboratory and vocational rooms, and other
usable areas not customarily used for class, toilet or assem-
bly purposes.
Exceptions:
1. The Department may, after referral to and report
from the Fire Department, modify the above
requirement, provided it is first found that equiva-
lent alternate safety measures are provided.
2. Sprinklers may be omitted, provided every room
used for instruction purposes or assembly is pro-
vided with exits giving direct egress to the exterior
of the building.
3. Covered walkways complying with the require-
ments of Section 409 and balconies need not be
sprinklered.
8602.7.3 A sprinkler system required under the provisions
of this part shall be electrically interconnected to the build-
ing fire alarm system.
8602.8 General.
8602.8.1 All requirements of this Code with respect to exits
shall be complied with.
Exceptions:
1 . The provisions of Section 711 which require shaft
enclosures need not be complied with, provided
the provisions of this section are met.
2 . Every boiler using liquid or solid fuel shall be housed
in a boiler room separated from the remainder of the
building by two-hour fiire-resistive construction with
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openings protected by a fire assembly having a one -
and one-half-hour fire-resistive rating.
3. Every boiler using fuel gas shall be housed in a
boiler room separated from the rest of the building
by 1-hour fire-resistive construction with open-
ings protected by a fire assembly having a 1-hour
fire-resistive rating.
4. Each gas piping system serving a Group E occu-
pancy shall be provided with a gas shutoff valve
designed to close the flow of gas to the piping sys-
tem and a label designating such valve. The label
shall be of corrosion-resistant metal with letters at
least 3 inches (76 mm) high, stating: "GAS
SHUT-OFF VALVE."
5. Any fire- warning system required to be installed
by the Los Angeles Fire Department pursuant to
the provisions of Article 7, Chapter V of the Los
Angeles Municipal Code shall meet the require-
ments of Article 760. of the California Electrical
Code adopted by the City of Los Angeles.
SECT80N 8603
PROTECTION - WARNING SYSTEM
8603.1 Group R, Division 1 and Division 2 occupancies.
Ll.l Existing residential building. Except as other-
wise provided in Section 8603 .1.2, the provisions of Section
907.2.10 of this Code shall apply to every dwelling unit,
efficiency dwelling unit, guest room and suite in any build-
ing where the original building permit was issued prior to
May 1 8, 1980. The smoke detectors may be battery operated
until August 1, 1983, at which time the smoke detectors
shall be located and permanently wired as required in Sec-
tion 907!2. 10 of this Code.
Nothing here shall be construed to waive the requirement
for permanently wired smoke detectors, which was in effect
at the time the original building permit for the building was
issued.
Every permanently wired smoke detector installed in a
corridor or area giving access to the sleeping rooms shall be
located within 12 feet 6 inches (3810 mm) of the sleeping
room. Where the location of the detector is less than 12 feet
six inches (3810 mm) of an appliance, which produces
products of combustion other than a forced-air heating unit,
a photoelectric type detector shall be required. There shall
be no more than one door separating that type of detector
from any room used for sleeping purposes. A permanently
wired smoke detector installed pursuant to a permit issued
prior to July 31, 1981, need not comply with this paragraph
until replaced.
5.1.2 Existing apartment hotels and hotels over 75
feet (22 860 mm) in height. Every existing apartment hotel
more than 75 feet (22 860 mm) in height and containing no
more than nine dwelling units and every existing hotel more
than 75 feet in height, where the original building permit for
the building was issued prior to May 18, 1980, shall comply
with the provisions of Section 907.2.10 of this Code not
later than August 1, 1981.
Exception: The operative date for compliance may be
delayed until August 1, 1982, if the Department deter-
mines that the building complies with either the provi-
sions of Sections 419 and 602.2 of this Code or Sections
2-1733 through 2-1747 of Title 19 of the California
Administrative Code.
Notwithstanding any other provision hfere to the contrary,
every guest room in any apartment hotel or hotel described
in this section when used as a light-housekeeping room, as
that term is described in Section 8 1 1 . 1 of this Code, shall be
provided with smoke detectors in compliance with the pro-
visions of Section 907.2. 10 of this Code and the provisions
of Section 8603.2 pertaining to photoelectric type smoke
detectors located in corridors or areas giving access to
sleeping rooms. Smoke detectors may be battery operated
until August 1, 1982, at which time the smoke detectors
shall be located and permanently wired as required by Sec-
tion 907.2.10 of this Code.
8603.2 Group R, Division 3 occupancies.
8603.2.1 Existing one-family dwellings. After July 31,
1980, existing one-family dwellings shall be provided with
smoke detectors, which may be battery operated, located as
specified in Section 907.2.10 of this Code for Group R,
Division 3 occupancies, if:
1 . The dwelling is sold or exchanged and the original
building permit was issued prior to May 19, 1980;
2. Alterations, repairs or additions requiring a permit are
made or reroofing or shower pan replacement is per-
formed by a Certified Licensed Contractor pursuant
to Section 108.12 of this Code with a valuation in
excess of $1,000.00;
3 . One or more sleeping rooms are added or created; or .
4. Bars, grilles, grates, roll-down security shutters, or
similar devices are installed on all emergency escape
windows and exterior doors of any sleeping rooms.
Nothing here shall be construed to waive the requirement
to install permanently wired smoke detectors, which were
required at the time the original building permit for the
building was issued.
For the purposes of this subsection, the term "permit"
shall not include permits required for the repair or replace-
ment of electrical, plumbing or mechanical equipment.
8603.2.2 Existing two-family dwellings. Every building
containing two dwelling units and not more than five guest
rooms, where the original building permit was issued prior
to May 18, 1980, shall comply with the provisions of Sec-
tion 907.2.10 of this Code and the provisions of Section
8603.2.1 pertaining to photoelectric-type smoke detectors
located in corridors or areas giving access to sleeping
rooms. Smoke detectors may be battery operated until
August 1, 1983, at which time the smoke detectors shall be
located and permanently wired as required by Section
907.2.10 of this Code.
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676
2008 CITY OF LOS ANGELES BUILDING CODE
SPECIAL PROVISIONS FOR EXISTING BUILDINGS
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Nothing here shall be construed to waive a requirement to
install permanently wired smoke detectors, whidh were
required at the time the original building permit for the
building was issued.
SECTION 8604
FIRE SAFETY STANDARDS
8604.1 General.
8604.1.1 Notification.
8604.1.1.1 Whenever the Department of Building and
Safety determines by inspection that a building does not
conform to the minimum requirements of either Sections
8604.2, 8604.3, 8604.4 or 8604.5, the Department of
Building and Safety shall prepare a written Fire Safety
Standards Repair Order directing the owner to repair and
modify the building so as to conform to those minimum
requirements. The Department of Building and Safety
shall serve the order either personally or by certified or
registered mail, upon the owner as shown on the last
equalized assessment roll and may serve the order upon
the person, if any, in real or apparent charge or control of
the building.
The order shall specify the manner in which the build-
ing fails to meet the minimum requirements of either
Sections 8604.2, 8604.3, 8604.4 or 8604.5. The order
shall direct the owner of the building to submit plans,
obtain the necessary permits and complete the necessary
corrections.
8604.1.1.2 Whenever, pursuant to Section 57.01.22 of
the Los Angeles Municipal Code, the fire department
determines by inspection that a building does not con-
form to the minimum requirements of Section 8604.6, it
shall prepare a written Fire/Life Safety Order directing
the owner to repair and modify the building so as to con-
form to the minimum requirements of Section 8604.6.
The order shall specify the manner in which the build-
ing fails to meet the minimum requirements of Section
8604.6. The order shall direct the owner of the building
to submit plans, obtain necessary permits and complete
the necessary corrections.
The order shall be transmitted to the Department of
Building and Safety for service, recording and enforce-
ment purposes. The Department of Building and Safety
shall serve the order, either personally or by certified or
registered mail, upon the owner as shown on the last
equalized assessment roll and may serve the person, if
any, in real or apparent charge or control of the building.
The provisions of this subparagraph are not intended to
prevent the Department of Building and Safety from also
making a determination or issuing an order regarding
failure to comply with Section 8604.6.
8604.1.2 Time for compliance.
8604.1.2.1 Whenever the Department of Building and
Safety serves a Fire Safety Standards Repair Order pur-
suant to|Section 8604. 1.1.1 above, the owner of a build-
ing shall submit plans and obtain necessary permits as
required in that order not later than 90 days after service
of the order and shall complete necessary corrections not
later than 1 year after service of the order for work under
Sections 8604.2, 8604.3, 8604.4 or 8604.5. No extension
of time, either to submit plans, obtain permits or com-
plete the necessary corrections shall be granted except by
the Board of Building and Safety Commissioners upon a
finding of unusual circumstances which warrant an
extension.
8604.1.2.2 Whenever the Department of Building and
Safety serves a Fire/Life Safety Order pursuant to Sec-
tion 8604.1.1.2, the owner of a building shall:
(1) Submit main system plans, which include Plans
for any required water storage tank, fire pump(s).
Fire Department connection(s) and all sprinkler
riser valves for sprinkler connections of each
floor;
(2) Obtain necessary main system permits as
required in that order not later than one year after
service of the order; and
(3) Complete necessary corrections required by the
Fire/Life Safety Order not later than three years
after service of the order for work required under
Section 8604.6.
Exceptions to the time for work required under
Section 8604.6:
1. Vacant building. If a building is vacant and
secured from unauthorized entry, then the
owner of the building may apply to the Depart-
ment of Building and Safety for an extension of
time to comply with the requirements of Sec-
tion 8604.6. An extension of time may be
granted for a two year period and may be
renewed for two year time periods, unless to do
so poses a threat of health or safety. This exten-
sion of time expires and the building is subject
to enforcement procedures if it is no longer ade-
quately secured from unauthorized entry.
2. Buildings only occupied below the second
floor. If a building is only occupied below the
second floor and all floors from the second
floor and above are vacant and secured from
unauthorized entry, then the owner(s) of that
building may apply to the Department of Build-
ing and Safety for an extension of time to com-
ply with the requirements of Section 8604.6,
provided sprinklers are installed on the occu-
pied floors(s) and a 2-hour fire-rated separation
is provided between the vacant and occupied
floors. Such an extension of time may be
granted for a 2 year period and may be renewed
for additional 2 year time periods, unless to do
so poses a threat to health or safety. No vacant
portion of the building may be reoccupied until
the requirements of Exception 3 of Section
8604.1.2.2, are satisfied. This extension of time
expires and the building is subject to enforce-
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2008 CITY OF LOS ANGELES BUILDING CODE
677
SPECSAL PROVISIONS FOR EXISTING BUILDINGS
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ment procedures if it is no longer adequately
secured above the first floor from unauthorized
entry.
3. Buildings with occupancy above the first
floor. The owner of a building cited for a viola-
tion of Section 8604.6 may request an exten-
sion of time to comply with those requirements.
Extensions of time may be granted for a period
of 1 year from the date of application and may
be renewed for two additional 1 year periods.
The owner shall submit to the Department a
plan of action to:
(a) Install fire sprinklers, including the base
system, fire alarm, emergency power and
stairwell ventilation from the ground
floor up to the floor above the highest
occupied floor; and
(b)Bring elevator lobby vestibules on all
required floors up to the highest occupied
floor into compliance.
An additional 3-year extension of time to com-
ply with the requirements of Section 8604.6 on the
remaining unoccupied floors of the building may
be granted subject to the owner completing all
requirements in the occupied portions of the build-
ing within the time guidelines of the owner's plan
of action, unless to do so poses a threat of health or
safety.
4. Asbestos. If an owner of a building commits to
a program of abatement of asbestos, then the
Department of Building and Safety may grant
an extension of time to complete the work
required under Section 8604.6, provided that
all necessary permits are obtained and the
required water storage tank, fire pumps, riser
and all sprinkler riser valves for sprinkler con-
nections on each floor are installed and opera-
tional prior to the grant of any extension.
Subsequent extension approvals beyond the ini-
tial approval shall also be conditioned on progress
of work in conformance with the plan of work sub-
mitted with the approved extension of time.
Request for an extension of time under Excep-
tions 1-4 above shall be filed on an application
form provided by the Department of Building and
Safety and signed by the owner of the building.
Applications are subject to review and action by
the Department of Building and Safety with con-
currence by the Fire Department. An extension of
time may be granted only where a good faith effort
to comply can be demonstrated by the applicant.
Applications shall be processed according to the
guidelines set forth in Section 98.0403.2.
,1.2.3 Records. At the time that the Department of
Building and Safety serves a Fire/Life Safety Order or
Fire Safety Repair Order, the Department shall file with
the Office of the County Recorder a certificate stating
that the building does not meet the minimum fire safety
requirements of Sections 8604.2, 8604.3, 8604.4, 8604.5
or 8604.6 and that the owner of the building has been so
notified.
After all necessary corrective work has been per-
formed, the Department of Building and Safety shall file
with the Office of the County Recorder a certificate ter-
minating the status of the building as nonconforming to
the minimum fire safety requirements of Sections
8604.2, 8604.3, 8604.4, 8604.5 or 8604.6.
8604.1.2.4 Enforcement. Notwithstanding any other
provisions of this Code to the contrary, it shall be unlaw-
ful for any person, firm or corporation to maintain, use or
occupy any building within the scope of this section
which does not meet the minimum standards specified in
Section 8604.6.
Any person who fails to comply with an order issued
pursuant to this section, within each of the time periods
set forth in Section 8604. 1 .2.2, or who causes or permits
another person to fail to comply with such an order, is
guilty of a misdemeanor which is punishable by a fine of
not more than $ 1 ,000.00 and/or 6 months imprisonment.
For purposes of this paragraph, the phrase "any per-
son" includes an owner, or lessor, sublessor, manager or
any person in control of a building subject to this section.
The legal owner of a building is that person, firm, corpo-
ration, partnership or other entity whose name or title
appears in the records in the Office of the County
Recorder, as well as all successors or assignees of these
owners.
In addition to any other remedy available at law, if the
owner or other person in charge and control of the build-
ing fails to comply with an aforementioned order within
the time periods set forth in Section 8604.1, the Depart-
ment of Building and Safety may order that the building
be vacated and that the building remain vacated until all
required corrective work has been completed. Whenever
compliance with an order issued pursuant to the provi-
sion of this section has not been accomphshed within 90
days after the date the building has been ordered vacated,
or such additional time as may have been granted by the
Board, the Department may order demolition of the
building, in accordance with the provisions of Chapter
89.
8604.2 Commercial buildings.
8604.2.1 Purpose. The purpose of this subsection is to pro-
vide a reasonable degree of fire safety for persons occupy-
ing existing commercial and industrial buildings.
8604.2.2 Scope The provisions of this section shall apply to
all existing commercial and industrial buildings more than
two stories in height which do not conform to the minimum
shaft enclosure and exit requirements of this Code and
which are not required to comply with Section 1733 of Pait
2, Title 24, of the California Administrative Code for exist-
ing buildings over 75 feet (22 860 mm) in height. The provi-
sions of this subsection shall not authorize the modification
of existing buildings or portions thereof which provide a
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678
2008 CITY OF LOS ANGELES BUILDING CODE
SPECIAL PROVISIONS FOR EXISTING BUILDINGS
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greater degree of protection against fire than the minimum
requirements established by this subsection.
Exception: The requirements of this subsection shall not
apply to buildings erected after January 1, 1943.
8604.2.3 Shaft enclosures. Every opening in a floor shall
be enclosed as required by Section 707 of this Code for shaft
enclosures, provided, however, that existing enclosure walls
constructed of wood lath and plaster or equivalent fire-resis-
tive materials and that are in good condition may be
accepted in lieu of enclosure wall construction.
Corridor exits, which are interrupted by stairwell enclo-
sures required by this subdivision, shall be provided with
exit door fire assemblies that will close automatically when
activated by an approved smoke detector.
Exceptions:
1. The shaft protection required by this paragraph
may be omitted if the building is sprinklered
throughout.
2. Existing metal elevator doors need not be replaced
if they are in good condition. These doors may
have openings protected with wire glass.
8604.2.4 Exits. Two reasonably separated and accessible
exits shall be provided from each floor.
Exception: Existing fire escapes that are in structurally
sound operational condition may be used as one means
of egress.
Exit signal with letters at least 6 inches (152 mm) high
shall be installed in conspicuous locations at each exit from
the floor and whenever otherwise required to clearly indi-
cate the direction of egress from area served.
8604.3 Residential buildings.
8604.3.1 Purpose. The purpose of this subsection is to pro-
vide a reasonable degree of fire safety for persons living and
sleeping in apartment houses, hotels, apartment hotels, and
in buildings housing Group R-4 or I-l occupancy. Group
R-4 or I-l occupancy includes homes with medical care for
ambulatory patients or children 6 years of age or over, and
honor farms or conservation camps housing inmates who
are not restrained. Alterations are required to these existing
buildings, which do not conform to the minimum exiting,
shaft enclosure and corridor protection requirements of this
Code.
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1.3.2 Scope. The provisions of this subsection shall
apply to all existing buildings more than two stories in
height, which contain Group R-1, R-2, R-4 or I-l occu-
pancy. Group R-4 or I-l occupancy include homes with
medical care for ambulatory patients or children 6 years of
age or over, and honor farms or conservation camps housing
inmates who are not restrained. The provisions of this sub-
section shall not authorize the modification of existing
buildings of portions of buildings, which provide a greater
degree of protection against fire than the minimum require-
ments established by this subsection.
8604.3.3 Corridor walls and openings. The walls of every
public corridor shall be protected by 1-hour frre-resistive
construction, provided, however, that existing walls con-
structed of wood lath and plaster and which are in good con-
dition, will be acceptable in lieu thereof.
Transoms and openings other than doors from public cor-
ridors to guest rooms and dwelling units shall be closed and
solidly covered with material that will provide the degree of
fire resistance as shall be provided by adjacent corridor
walls.
All door openings from public corridors to guest rooms
and dwelling units shall provide the same degree of lire
resistance as shall be provided by adjacent corridor walls.
Exception: Door openings from public corridors to
guest rooms and dwelling units may have 20-minute pro-
tection, provided:
A. All stairways, hallways, exitways and storage or
closet areas adjacent thereto are sprinklered;
B . A sprinkler head is placed inside each unit adjacent
to each door opening from the public corridor to
the guest room or dwelling unit; and
C. An approved self-closing device is installed on
each door opening from the public corridor into
the guest room or dwelling unit.
8604.3.4 Shaft enclosures. All stairwells shall be enclosed
in approved shaft enclosures, provided, however, that exist-
ing enclosure walls constructed of wood lath and plaster
which are in good condition will be accepted in lieu of
approved shaft wall construction.
Exception: In buildings erected prior to January 1 , 1 943,
stair shaft enclosures may be omitted if the building is
sprinklered throughout and the sprinkler system is inter-
connected to the alarm system required under Section
8604.5 of this Code.
8604.3.5 Existing conditions.
8604.3.5.1. Existing means of exit, including fire
escapes, are acceptable where they exist in the required
number and are maintained in good condition.
8604.3.5.2. No standpipes will be required where none
exist.
8604.3.5.3. No emergency hallway illumination will be
required where none exist.
8604.3.5.4. Dead-end corridors not over 20 feet (6096
mm) in length may have access to a second exit through a
stair shaft enclosure.
8604.4 Fire safety for existing Group R-4 or I-l occupancy.
This section applies to every existing Group R-4 or I-l occu-
pancy over two stories in height with homes providing medical
care for ambulatory patients or children 6 years of age or over,
or with honor farms or conservation camps housing
un-restrained inmates. When these buildings do not conform to
the minimum shaft and corridor protection requirements of this
Code, they shall be made to conform to the minimum require-
ments as specified in Section 8604.3.
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2008 CITY OF LOS ANGELES BUILDING CODE
679
SPECIAL PROVISIONS FOR EXISTING BUDLDIiMGS
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8604.5 Fire protecliom steedards for existing Group R ■
prior to January 1, 1943.
or
L5.1 Scope. The provisions of this section are in addi-
tion to those in Section 8604.3 and apply to all existing
buildings three or more stories in height, which contain
Group R- 1 or R-2 occupancies and which were erected prior
to January 1, 1943.
L5.2 Closure of doors. All required stair shaft, cut-off
and area separation doors shall be equipped with approved
self-closing devices and electrically operated hold-open
devices designed to release the door by the activation of
smoke detectors located on each side of the doorway and
within 12 inches (305 mm) of the ceiling.
3. All interior stairways, hallways, exits
and storage or closet areas adjacent thereto shall be provided
with an approved automatic sprinkler system connected with
an alarm system that emits an audible signal throughout the
premises. In any room having a door opening into an interior
hallway, stairway or exitway, a sprinkler head shall be located
inside the room directly over the door. Sprinklers so installed
shall be equipped with listed residential sprinkler heads and
may utilize polybutylene plastic pipe for laterals only. Sprin-
kler materials and installation shall comply with the Plumb-
ing Code and Supplemental Rules and Regulations.
.5.4 Self-dosing device. Each apartment or guest
room door opening into an interior stairway, hallway or exit
shall be equipped with an approved self-closing device.
L5.5 State Fire Code. Where the Group R-1 or R-2
occupancy regulated by this section has floors used for
human occupancy more than 75 feet (22 860 mm) above the
lowest floor level having building access, the provisions of
Part 2 of Title 24 of the California Administrative Code
relating to those occupancy shall apply in lieu of any less
restrictive provisions set forth in this section.
8604.6 Fire safety standards for existing high-rise build-
L6.1 Purpose. The purpose of this section is to provide
a reasonable degree of fire safety for persons occupying
existing high-rise buildings.
8604.6.2 Scope. The provisions of this section shall apply to
every existing high-rise building for which a building per-
mit was issued prior to July 1, 1974.
Exception: The provisions of this section shall not apply
to Group R-1 or R-2 occupancy, as defined in Section
310.1 of this Code. The provisions of this section shall
not authorize the modification of existing buildings or
portions of the buildings, which provide a greater degree
of protection against fire than the minimum require-
ments estabhshed by this section.
For the purposes of this section, a
high-rise building is a building of any type of construction
having floors (as measured from the top of the floor surface)
that may be used for human occupancy located more than 75
feet (22 860 mm) above the lowest floor level having building
access.
8604.6.4 Requirements. Every building within the scope
of this section shall be provided with an automatic fire sprin-
kler system complying with all applicable sections of the
Los Angeles Municipal Code. The sprinkler system shall
cover all areas of the building.
Exceptions:
1. Sprinklers need not be installed in locations
expressly excepted in the Los Angeles Plumbing
Code provided other approved fire protection
equipment is installed.
2. The Department of Building and Safety may
review, on a case by case basis, buildings within
the scope of this section and may approve alterna-
tive fire protection systems which meet the intent
of the high-rise sprinkler requirements.
3. The Department of Building and Safety may, with
the concurrence of the fire department, grant
exceptions from the requirements of Chapter IX,
Article 4, Division 7 of the Los Angeles Municipal
Code as specified in Section 8604.6.5.
8604.6.5 Conditional exceptions. The following excep-
tions from the requirements set forth in Section 94.2001 of
the Los Angeles Municipal Code are available upon applica-
tion to the Department provided all the stated conditions are
met for each category of building.
8604.6.5.1 Existing buildings 75 feet to 150 feet (22
860 mm to 45 720) in height.
Exceptions:
1 . Existing risers may be used when maintained in
a safe and operable condition.
2. New, on-site water storage need not be pro-
vided. (When existing on-site water storage is
available, it may be integrated into the fire
sprinkler system.)
Conditions:
1 . A 3 -inch (76 mm) test drain shall be provided in
stair shafts where pressure- regulator valves are
used. Valves, equipment and devices shall con-
form to Los Angeles Plumbing Code require-
ments.
2. A single pump having a minimum capacity of
750 gpm (2839 L/min) shall be provided. (Die-
sel pumps shall have a 4-hour fuel supply.)
3. There shall be a flow of 750 gpm (2839 L/min)
at 65 psi (3112 Pa) at the roof, and the sprinkler
system design shall meet code requirements.
4. Existing sprinkler systems, existing or new
standpipe systems and existing or new sprin-
kler risers shall be interconnected at the base of
the riser system with a minimum of one fire
department connection.
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2008 CITY OF LOS ANGELES BUILDING CODE
SPECIAL PROVISIONS FOR EXISTING BUILDINGS
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5. Emergency standby electrical power with a
4-hour fuel supply shall be provided for fire
pumps and the following new installations:
Fire protective signaling systems;
Emergency exit lighting; and
Exit and directional signs.
8604.6.5i2 Existing buildings over 150 feet to 275 feet
in height.
Exception: Existing risers may be used when main-
tained in a safe and operable condition.
Conditions:
1 . A 3-inch (76 mm) test drain shall he provided in
each stair shaft where pressure- regulator
valves are used. Valves, equipment and devices
shall conform to Plumbing Code requirements.
2. At least two pumps connected to the automatic
sprinkler system having a minimum capacity of
750 gpm (2839 L/min) each shall be provided.
(Diesel pumps shall have a four hour fuel sup-
ply-)
3. There shall be a flow of 750 gpm (2839 L/min)
at 65 psi (3112 Pa) at the roof, and the sprinkler
system design shall meet code requirements.
4. Existing sprinkler systems, new and existing
standpipe systems and new and existing sprin-
kler risers shall be interconnected at the base of
the riser system with at least one fire depart-
ment connection.
5. Emergency standby electrical power with a
four hour fuel supply shall be provided for fire
pumps and the following new installations:
Fire-protective signaling systems;
Emergency exit lighting; and
Exit and directional signs.
6. A minimum usable capacity of 20,000 gallon
(75 700 L) storage tank shall be provided on
site.
8604.6.5.3 Existing buildings greater than 275 feet
(83 820 mm) in height.
Exception: Existing risers may be used when main-
tained in a safe and operable condition.
Conditions:
1. A 3 -inch (76 mm) test drain shall be provided
in each stair shaft where pressure- reduction
valves are used. Valves, equipment and devices
shall conform to Plumbing Code requirements.
2 . At least three pumps connected to the automatic
sprinkler system having a minimum capacity of
750 gpm (2839 L/min) each shall be provided.
At least one pump shall be an electric
motor-driven pump. (Diesel pumps shall have a
four hour fuel supply.)
3. There shall be a flow of 1,000 gpm (37 854
L/min) at 65 psi (342 Pa) at the roof, and the
sprinkler system design shall meet code
requirements.
4. Existing sprinkler systems, new and existing
standpipe systems, and new and existing sprin-
kler risers shall be interconnected at the base of
the riser system with at least one Fire Depart-
ment connection.
5. Emergency standby electrical power with a
four hour fuel supply shall be provided for fire
pumps and the following new installations:
Fire-protective signaling systems;
Emergency exit lighting; and
Exit and directional signs.
6. A minimum usable, capacity of 40,000 gallon
(151 400 L) water storage tank shall be pro-
vided on site.
8604.6.6 Elevator lobbies. Existing high-rise buildings
within the scope of this section shall comply with the fol-
lowing:
1. Except for the main entrance level, every elevator on
each floor shall open into an elevator lobby that is sep-
arated from the remainder of the building, including
corridors and other exits, by walls having a fire-resis-
tive rating of not less than 1 hour. All lobby openings
other than those for elevator doors, stairway enclo-
sures and ducts shall be protected with ^-hour
self-closing fire assemblies actuated by combustion
products-type smoke detectors.
2. Except for the main entrance level, each elevator
lobby shall be provided with an approved smoke
detector located on the lobby ceiling. When the detec-
tor is activated, elevator doors shall not open and all
cars serving that lobby shall return to the main floor
and be under manual control only. The smoke detec-
tor shall meet the requirements of Title 8, California
Administrative Code (Elevator Safety Orders). The
detector may serve to close the lobby doors.
8604.6.7 Stair shaft ventilation. Each stair shaft which
extends to the roof shall be provided with a minimum venti-
lation opening of 20 square feet (1.86 m^) at the roof level.
SECTION 8605
EMERGENCY HOMELESS SHELTERS
8605.1 Applicability of standards. The provisions and stan-
dards set forth in Section 8605.2 shall be appUcable to any
emergency shelter for the homeless which complies with and is
approved pursuant to Section 12.80 or Section 12.81 of theLo5
Angeles Municipal Code.
8605.2 General. Notwithstanding any prqyisions of this Code
to the contrary, the following requirements shall apply to emer-
gency homeless shelters operated during a shelter crisis, as pro-
vided for in Section 8698 of the Government Code, et seq.
Other than the requirements set forth below, the facilities need
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2008 CITY OF LOS ANGELES BUILDING CODE
681
SPECIAL PROVISIONS FOR EXBSTIISSG BUDLDIMGS
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not comply with the requirements of this Code for Group R
occupancies unless otherwise specified in this Code:
1 . The maximum occupant load allowed in these facilities
shall be the number determined appropriate by the pro-
fessional service provider operating the facility and/or
the Community Development Department of the City of
Los Angeles, but in no event resulting in less than 50
square feet (232 m^) of usable area per occupant.
2. Fire safety requirements.
A. All exits shall comply with Division 33 of Article 7
of Chapter V of the Los Angeles Municipal Code
and Chapter 10.
B. Smoke detection devices shall be provided in all
sleeping areas and shall be installed in accordance
with Division 1 12 of Article 7 of Chapter V of the
Los Angeles Municipal Code and Section 907.2.10
of this Code.
C. A fire alarm system capable of arousing occupants
shall be installed in accordance with Division 122
of Article 7 of Chapter V of the LAMC and Section
907.1 of this Code.
D. The use of any open flames and the possession or
storage of any combustibles shall not be permitted.
tnoe: The Superintendent of Building
may approve the use of open flames and storage
of combustibles in these buildings with concur-
rence of the fire department.
E. Sleeping quarters shall be limited to the ground
floor only.
3. Security.
A. An adequate number of security personnel shall
remain on the premises during actual occupancy
for the protection of the occupants and property.
B. Adequate lighting for security purposes shall be
provided at all times.
4. Light, heating, ventilation and sanitation.
A. Exterior openings for natural light and ventilation
shall be provided as required for Group R occu-
pancy, Sections 1203 and 1205 of this Code.
B. All sleeping areas shall be provided with heating
facilities capable of maintaining a room tempera-
ture of 70° F (2 1 °C) at a point eight feet above the
floor.
C. Every building shall be provided with at least one
water closet or at least two separate toilet facilities
where both sexes are accommodated. Additional
water closets shall be provided for each sex at the
rate of one for every 20 beds in excess of 20.
5. Additional requirements.
A. Operating procedures shall be developed by the
professional service provider and approved by the
Community Development Department of the City
of Los Angeles. These procedures shall be
designed to maintain order and safety within the
Emergency Homeless Shelter.
B. Emergency Homeless Shelters shall be open for
occupancy between the hours of 6:00 p.m. and
6:00 a.m. of the following day.
8605.3 Zoning. Every facility used to shelter homeless persons
pursuant to this section shall comply with Section 12.80 or Sec-
tion 12.81 of the Los Angeles Municipal Code.
SECTION 8606
EMERGENCY LIGHTING STANDARDS FOR
EXISTING RESIDENTIAL BUILDINGS, Gl
DIVISION 1 OCCUPANCIES
j.l Scope. The provisions of this section apply to all exist-
ing buildings, which contain five or more dwelling units with
an enclosed exit corridor or pathway that is 50 feet (15 240
mm) in length or greater on any single floor, or which has an
enclosed stairway.
Exceptions:
A. The provisions of this section shall not apply to Group
R-1 and R-2 occupancies, which currently have
lighted emergency exit signs and emergency lights in
the corridors and stairwells where both signs and
lights are connected to a generator, central battery
system or individual battery powered unit.
B. The provisions of this section shall not apply to corri-
dors located inside individual dwelling units.
C. The provisions of this section shall not apply to Group
R-1 and R-2 occupancies, which do not contain
enclosed exit corridors, enclosed stairways, lobbies,
passageways, or other common interior pathways that
are part of the exiting system.
8606.2 Definition.
1. The owner is that legal owner of an apartment building,
congregate residence, hotel, and in those instances where
a building is a condominium, the association of owners
or the association of owners and the owner of each unit.
2. The legal owner of a building is that person, firm, corpo-
ration, partnership, or other entity whose name or title
appears in the last equalized assessment roll in the Office
of the County Recorder, as well as all successors or
assignees of these owners.
8606.3.1 All buildings required to comply with this section
shall be provided with:
1. Permanently connected, emergency, battery oper-
ated, enclosed exit corridor, enclosed stairway, and
exit sign illumination installed in the required exit
pathway; or
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2. The required emergency enclosed exit corridor, L
enclosed stairway, and exit sign illumination pow- ^^
ered from a central battery system or an emergency la
generator complying with Article 700 of the NEC. \^
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2008 CITY OF LOS ANGELES BUILDING CODE
SPECIAL PROVISIONS FOR EXISTING BUILDINGS
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8606.3.2 Plan check. Plans for the emergency exit corridor
and exit sign lighting systems shall be submitted to the
Department of Building and Safety for review and approval
prior to obtaining a permit. Plans shall provide the informa-
tion specified in Section 93 .0207 of the Los Angeles Munici-
pal Code (Electrical Code).
Exception: Existing buildings having less than four sto-
ries and containing fewer than 50 dwelling units are
exempt from the requirement to submit electrical plans.
8606.3.3 Means of egress illumination shall be provided for
the enclosed exit corridor, enclosed stairway and pathway as
required in Section 1006 of this Code.
8606.3.4 Lighted exit signs shall meet the requirements of
Section 101 1.1 of this Code and where emergency power is
required for Group R-1 and R-2 occupancies as specified in
Section 1011.5.3 of this Code.
8606.3.5 Emergency battery powered units shall be capable
of operating for a minimum one and one-half hours.
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.3.6 The provisions of this section shall not authorize
modifying emergency lighting systems in existing buildings
or portions thereof which provide a greater degree of protec-
tion than the minimum requirements established by this sec-
tion.
8606.3.7 When the residential portion of a mixed occu-
pancy building falls within the scope of this section, the
non-residential portions of that building must also comply
with the provisions of this section.
8606.4 Enforcement.
8606.4.1 Notification. Whenever the Department of Build-
ing and Safety or the fire department determines by inspec-
tion or review of City records that a Group R-1 or R-2
occupancy multifamily residential building containing five
or more dwelling units does not conform to the minimum
requirements of this section, either Department shall pre-
pare a written order directing the owner to repair and modify
the building so as to conform to the minimum requirements
of this section.
The order shall specify the manner in which the building
fails to meet the minimum requirements of this section. The
order shall direct the owner of the building to submit plans,
if required, to the Department of Building and Safety, obtain
necessary permits and complete the work specified in the
order.
Service of the order shall be accomplished in the follow-
ing manner:
1 . The Department of Building and Safety and/or the
fire department may personally serve the order upon
the owner; or
2. The Department of Building and Safety and/or the
fire department may serve the order by certified or
registered mail upon the owner.
In addition, the person in real or apparent charge or con-
trol of the building or unit of the building may be served in
the manner prescribed by this section.
8606.4.2 Time for compliance. Whenever an order is
served pursuant to Section 8606.4'. 1 above, the owner shall:
1 . Submit all building plans required by the order to the
Department of Building and Safety within 2 years of
the effective date of the order; and
2. Obtain permits required by the order from the Depart-
ment of Building and Safety as a result of the order
within three years of the effective date of the order;
3. Complete the work required by the order within 5
years of the effective date of the order.
8606.4.3 Penalties. Any person who fails to comply with an
order issued pursuant to this section, within each of the time
periods set forth in Section 8606.4.2 above, or who causes
or permits another person to fail to comply with such an
order, is guilty of a misdemeanor which is punishable by a
fine of not more than $1,000.00 and/or 6 months imprison-
ment in the county jail. For purposes of penalties, the phrase
"any person" includes an owner, lessor, sublessor, manager,
or any person in charge or control of a building subject to
this section.
In addition to any other remedy available by law, if the
owner or other person in charge or control of the subject
building fails to comply with an order issued pursuant to this
section within the time periods set forth in Section 8606.4.2,
the Department of Building and Safety or the fire depart-
ment may refer the violation to the State Franchise Tax
Board as a substandard residential building and/or refer the
building to the Rent Escrow Account Program (REAP).
SECTION 8607
TENANT SAFETY FOR APARTMENT HOUSES,
EXCEPT FOR RESIDENTIAL CONDOMINIUMS
The purpose of this section is to provide minimum security
standards for tenants in existing apartment houses, except for
residential condominiums as defined in this Code. Owners of
all lots developed with an apartment house shall provide lights
and locks or metal bars or grilles that comply with the provi-
sions of Sections 12.21 A.5.(k), 6304.2, 6305 and Chapter 67
in any of the following circumstances:
1 . At the time the apartment building is sold or exchanged;
2. At the time a permit is issued for alterations, repairs or
additions which exceed a valuation of $10,000; or
3. Upon the determination of the Board pursuant to Section
8108.3.
No costs incurred as a result of this section may be charged to
the tenant or tenants of any properties subject to the Rent
Escrow Account Program provisions commencing at Section
162.00 of this Code.
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2008 CITY OF LOS ANGELES BUILDING CODE
683
684 2008 CDTY OF LOS ANGELES BUILDING CODE
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CHAPTER 88
EARTHQUAKE HAZARD REDUCTION IN EXISTING BUILDINGS
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SECTION 8801
PURPOSE
The purpose of this chapter is to promote pubHc safety and wel-
fare by reducing the risk of death or injury that may result from
the effects of earthquakes on unreinforced masonry bearing
wall buildings constructed before 1934. Such buildings have
been widely recognized for their sustaining of life hazardous
damage as a result of partial or complete collapse during past
moderate to strong earthquakes.
The provisions of this chapter are minimum standards for
structural seismic resistance established primarily to reduce
the risk of loss of life or injury and will not necessarily prevent
loss of life or injury or prevent earthquake damage to an exist-
ing building which complies with these standards. This chapter
shall not require existing electrical, plumbing, mechanical or
fire-safety systems to be altered unless they constitute a hazard
to life or property.
This chapter provides systematic procedures and standards
for identification and classification of unreinforced masonry
bearing wall buildings based on their current use. Priorities,
time periods and standards are also established under which
these buildings are required to be structurally analyzed and
anchored. Where the analysis determines deficiencies, this
Chapter requires the building to be strengthened or demol-
ished.
SECTION 8802
SCOPE
The provisions of this chapter shall apply to all buildings con-
structed or under construction prior to October 6, 1933, or for
which a building permit was issued prior to October 6, 1933,
which on the effective date of this ordinance have unreinforced
masonry bearing walls as defined herein.
Exception: This chapter shall not apply to detached one- or
two-family dwellings and detached apartment houses con-
taining less than five dwelling units and used solely for resi-
dential purposes.
SECTION 8803
DEFINITIONS
For purposes of this chapter, the applicable definitions in Sec-
tions 1602 and 1613 of this Code and the following shall apply:
ESSENTIAL BUILDING. Any building housing a hospital
or other medical facility having surgery or emergency treat-
ment areas, fire or police stations, municipal government disas-
ter operation and communication centers.
HIGH-RISK BUILDING. Any building not classified as an
essential building having an occupant load, as determined by
Section 1004.1 of this Code, of 100 occupants or more.
Exception: A high-risk building shall not include the fol-
lowing:
1. Any building having exterior walls braced with
masonry cross walls or wood-frame cross walls
spaced less than 40 feet (12 192 mm) apart in each
story. Cross walls shall be full-story height with a
minimum length of 1 72 times the story height.
2. Any building used for its intended purpose, as deter-
mined by the Department, for less than 20 hours per
week.
HISTORICAL BUILDING. Any building designated as an
historical building by an appropriate federal, state or City juris-
diction.
LOW-RISK BUILDING. Any building not classified as an
essential building having an occupant load as determined by
Section 1004.1 of this Code of less than 20 occupants.
MEDIUM-RISK BUILDING. Any building not classified as
a high-risk building or an essential building having an occupant
load as determined by Section 1004. 1 of this Code of 20 occu-
pants or more.
UNREINFORCED MASONRY BEARING WALL. A
masonry wall having all the following characteristics:
1. Provides the vertical support for a floor or roof
2. The total superimposed load is over 100 pounds per lin-
ear foot (1.5 kN/m).
3. The area of reinforcing steel is less than 50 percent of that
required by Section 2106.1 of this Code.
SECTION 8804
RATING CLASSIFICATIONS
The rating classifications as exhibited in Table No. 8 8- A are
hereby established and each building within the scope of this
chapter shall be placed in one rating classification by the
Department. The total occupant load of the entire building as
determined by Section 1004.1 of this Code shall be used to
determine the rating classification.
Exceptions:
1. For the purpose of this chapter, portions of buildings
constructed to act independently when resisting seis-
mic forces may be placed in separate rating classifica-
tions.
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2008 CITY OF LOS ANGELES BUILDING CODE
685
EARTHQUAKE HAZARD REDUCTION lfV9 EXISTING BUILD8NGS
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For the purpose of this chapter, to establish the rating
classification of a building containing one or more
artist in residence spaces, as defined in Section 8501
of this Code, the occupant load of each artist in resi-
dence space shall be one for each space less than
2,000 square feet (186 m^) in area and two for each
space 2,000 square feet (186 m^) or more in area.
SECT80N 8805
GEiMERAL REQUIREMENTS
The owner of each building within the scope of this chapter
shall cause a structural analysis to be made of the building by a
civil or structural engineer or architect licensed by the State of
California, and if the building does not meet the minimum
eaithquake standards specified in this chapter, the owner shall
cause it to be structurally altered to conform to such standards
or cause the building to be demolished.
The owner of a building within the scope of this Chapter
shall comply with the requirements set forth above by submit-
ting to the Department for review within the stated time limits:
1 . Within 270 days after the service of the order, a structural
analysis. Such analysis, which is subject to approval by
the Department, shall demonstrate that the building
meets the minimum requirements of this Chapter;
2. Within 270 days after the service of the order, the struc-
tural analysis and plans for the proposed structural alter-
ations of the building necessary to comply with the
minimum requirements of this Chapter;
3. Within 120 days after service of the order, plans for the
installation of wall anchors in accordance with the
requirements specified in Section 8808.3; or
4. Within 270 days after the service of the order, plans for
the demolition of the building.
After plans are submitted and approved by the Department,
the owner shall obtain a building permit, and commence and
complete the required construction or demolition within the
time limits set forth in Table No. 88-B. These time limits shall
begin to run from the date the order is served in accordance
with Sections 8806.1 and 8806.2.
Owners electing to comply with Item 3 are also required to
comply with Items 2 and 4, provided, however, that the 270 day
period provided for in Items 2 and 4 and the time limits for
obtaining a building permit, commencing construction and
completing construction for complete structural alterations or
building demolition set forth in Table No. 88-B shall be
extended in accordance with Table No. 88-C. Each such
extended time limit, except the time limit for commencing con-
struction, shall begin to run from the date the order is served in
accordance with Section 8806.2. The time limit for commenc-
ing construction shall commence to run from the date the build-
ing permit is issued.
SECTION 8806
ADWIINISTRATION
8806.1 Service of order. When the Department determines
that a building is within the scope of this chapter, the owner
shall comply with Section 8805. If the owner does not comply,
the Department shall issue an order, as provided in Section
8806.2, to the owner of each building with the minimum time
periods for service of such orders set forth in Table 88-C. The
minimum time period for the service of such orders shall be
measured from the effective date of this chapter. The Depart-
ment shall, upon receipt of a written request from the owner,
order a building to comply with this chapter prior to the normal
service date for such building as set forth in this section.
8806.2 Contents of order. The order shall be in writing and
shall be served either personally or by certified or registered
mail upon the owner as shown on the last equalized assessment,
and upon the person, if any, in apparent charge or control of the
building. The order shall specify that the building has been
determined by the Department to be within the scope of this
chapter and, therefore, is required to meet the minimum seis-
mic standards of this chapter. The order shall specify the rating
classification of the building and shall be accompanied by a
copy of Section 8805, which sets forth the owner's alternatives
and time limits for compliance.
8806.3 Appeal from order. The owner or person in charge or
control of the building may appeal the Department's initial
determination that the building is within the scope of this chap-
ter to the Board of Building and Safety Commissioners. Such
appeal shall be filed with the Board within 60 days from the ser-
vice date of the order described in Section 8806.2. Any such
appeal shall be decided by the Board no later than 60 days after
the date that the appeal is filed. Such appeal shall be made in
writing upon appropriate forms provided therefor by the
Department, and the grounds thereof shall be stated clearly and
concisely. Each appeal shall be accompanied by a filing fee as
set forth in Table No. 4- A of Division 4 of Article 8 of Chapter
IX of the Los Angeles Municipal Code.
Appeals or requests for slight modifications from any other
determinations, orders or actions by the Department pursuant
to this chapter shall be made in accordance with the procedures
established in Section 98.0403.2 of the Los Angeles Municipal
Code.
•
J.4 Recordation. At the time that the Department serves
the aforementioned order, the Department shall file with the
Office of the County Recorder a certificate stating that the sub-
ject building is within the scope of this chapter. The certificate
shall also state that the owner thereof has been ordered to struc-
turally analyze the building and to structurally alter or demol-
ish it when the Department determines the building is not in
compliance with this chapter.
If the building is either demolished, found not to be within
the scope of this chapter, or is structurally capable of resisting
minimum seismic forces required by this chapter as a result of
structural alterations or an analysis, the Department shall file
with the Office of the County Recorder a certificate terminating
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686
2008 CITY OF LOS ANGELES BUILDING CODE
EARTHQUAKE HAZARD REDUCTION IN EXISTING BUILDINGS
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the status of the subject building as being classified within the
scope of this chapter.
8806.5 Enforcement. If the owner or other person in charge or
control of the subject building fails to comply with any order
issued by the Department pursuant to this chapter withiri any of
the time limits set forth in Section 8805, the Department may
order that the entire building or a portion thereof be vacated and
that the building or a portion thereof remain vacated until such
order has been complied with. If compliance with such order
has not been accomplished within 90 days after the date the
building has been ordered vacated or such additional time as
may have been granted by the Board, the Superintendent of
Building may order its demolition in accordance with the pro-
visions of Section 8903 of this Code.
SECTION 8807
HISTORICAL BUILDINGS
Qualified historical buildings shall comply with the require-
ments of Chapter 84 and the California Historical Building
Code established under Part 8, Title 24 of the California Code
of Regulations .
SECTION 8808
ANALYSIS AND DESIGN
8808.1 General. Every structure within the scope of this Chap-
ter shall be analyzed and constructed to resist minimum total
lateral seismic forces assumed to act non concurrently in the
direction of each of the main axes of the structure in accordance
with the following formula:
V=IKCSW
(Formula 8-1)
The value of IKCS does no need to exceed the values set
forth in Table No. 88-D based on the applicable rating classifi-
cation of the building.
8808.2 Lateral forces on elements of structures. Parts or por-
tions of structures shall be analyzed and designed for lateral
loads in accordance with Sections 8808.1 and 1630 of this
Code, but not less than the value from the following formula:
F^ = IC^SW^
(Formula 8-2)
For the provisions of this section, the product of 75 does not
need to exceed the values as set forth in Table No. 88-E.
Exception: Unreinforced masonry walls in buildings not
having a Rating Classification I may be analyzed in accor-
dance with Section 8809.
The value of Cp need not exceed the values set forth in Table
No. 88-F.
8808.3 Anchorage and interconnection. Anchorage and
interconnection of all parts, portions and elements of the struc-
ture shall be analyzed and designed for lateral forces in accor-
dance with Table No. 88-F and Formula (8-2) as modified by
Table No. 88-E. Minimum anchorage of masonry walls to each
floor or roof shall resist a minimum force of 200 pounds per lin-
ear foot (2.92 kN/m) acting normal to the wall at the level of the
floor or roof.
8808.4 Level of required repair. Alterations and repairs
required to meet the provisions of this chapter shall comply
with all other applicable requirements of this Code unless spe-
cifically provided for in this chapter.
8808.5 Required analysis.
8808.5.1 General. Except as modified herein, the analysis
and design relating to the structural alteration of existing
structures within the scope of this chapter shall be in accor-
dance with the analysis specified in Chapter 16.
In addition, the compatibility of the roof diaphragm stiff-
ness with the out-of-plane stability of the unreinforced
masonry bearing walls of the story inmiediately below the
roof system shall be verified in accordance with the provi-
sions of Section 8811.
Exception: Buildings with rigid concrete or steel and
concrete roof diaphragms shall use the h/t values for "all
other buildings" in Table No. 88-G.
8808.5.2 Continuous stress path. A complete, continuous
stress path from every part or portion of the structure to the
ground shall be provided for the required horizontal forces.
8808.5.3 Positive connections. All parts, portions or ele-
ments of the structure shall be interconnected by positive
means.
8808.6 Analysis procedure.
8808.6.1 General. Stresses in materials and existing con-
struction utilized to transfer seismic forces from the ground
to parts or portions of the structure shall conform to those
permitted by the Code and those materials and types of con-
struction specified in Section 8809.
8808.6.2 Connections. Materials and connectors used for
interconnection of parts and portions of the structure shall
conform to the Code. Nails may be used as part of an
approved connector.
8808.6.3 Unreinforced masonry walls. Except as modi-
fied here, unreinforced masonry walls shall be analyzed as
specified in the applicable parts of Sections 2106 and 2107
of this Code to withstand all vertical loads as specified in
Chapter 16 in addition to the seismic forces required by this
Chapter.
Substantial changes in wall thickness or stiffness shall be
considered in the analysis for out-of-plane and in-plane wall
stability, and the wall shall be restrained against
out-of-plane instability by anchorage and bracing to the
roof or floor diaphragm in accordance with Section 8808.3.
Exception: Variations in wall stiffness caused by nomi-
nal openings, such as windows and exit doors need not be
considered. The 50 percent increase in the seismic force
factor for shear walls as specified in Section 2106.5.1 of
this Code may be omitted in the computation of seismic
loads to existing shear walls.
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2008 CITY OF LOS ANGELES BUILDING CODE
687
EARTHQUAKE HAZARD REDUCTION IN EXISTING BUILDINGS
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No allowable tension stress will be permitted in
unreinforced masonry walls. Walls not capable of resisting
the required design forces specified in this chapter shall be
strengthened or shall be removed and replaced.
Exceptions:
1 . Unreinforced masonry walls in buildings not clas-
sified as a Rating Classification I pursuant to Table
No. 88-A may be analyzed in accordance with
Section 8809.
2. Unreinforced masonry walls which carry no
design loads other than their own weight may be
considered as veneer if they are adequately
anchored to new supporting elements.
,7 Comijination of vertical and seismic forces.
L7.1 New materials. All new materials introduced into
the structure to meet the requirements of this section, which
are subjected to combined vertical and horizontal forces,
shall comply with Section 1605 of this Code.
.7.2 Existing materials. When stresses in existing lat-
eral force-resisting elements are due to a" combination of
dead and live loads plus seismic loads, the allowable work-
ing stress specified in the Code may be increased 100 per-
cent. However, no increase will be permitted in the stresses
allowed in Section 8809, and the stresses in members due
only to seismic and dead loads shall not exceed the values
permitted by Section 1605 of this Code.
8808.7.3 AUovyable reduction of bending stress by verti-
cal load. In calculating tensile fiber stress due to seismic
forces required by this chapter, the maximum tensile fiber
stress may be reduced by the full direct stress due to vertical
dead loads.
.8 Irregular features. All structures having any of the
irregular features described in Table 12.3-1 or Table 12.3-2 of
ASCE-7 shall be designated to meet the additional require-
ments of those sections referenced in the tables.
SECTION 8809
MATERIALS OF CONSTRUCTION
I*.! General. All materials permitted by this Code, includ-
ing their appropriate allowable stresses and those existing con-
figurations of materials specified herein, may be utilized to
meet the requirements of this chapter.
8809.2 Existing materials,
8809.2.1 General. Unreinforced masonry walls analyzed in
accordance with this section may provide vertical support
for roof and floor construction and resistance to lateral
loads.
All units of both bearing and nonbearing walls shall be
laid with full shoved mortar joints; all head, bed and wall
(collar) joints shall be solidly filled with mortar; and the
bonding of adjacent wythes of multiwythe walls shall be as
follows:
The facing and backing shall be bonded so that not less
than 4 percent of the wall surface of each face is composed
of headers extending not less than four inches (102 nam) into
the backing. The distance between adjacent full-length
headers shall not exceed 24 inches (610 mm) either verti-
cally or horizontally. In walls in which a single header does
not extend through the wall, headers from the opposite sides
shall overlap at least 4 inches (102 mm), or headers from
opposite sides shall be covered with another header course
overlapping the header below at least 4 inches (102 mm).
Wythes of walls not bonded as described above shall be
considered as veneer. The veneer wythe shall not be
included in the effective thickness used in calculating the
height-to-thickness ratio and the shear capacity of the wall.
Tension stresses due to seismic forces normal to the wall
may be neglected if the wall does not exceed the
height-to-thickness ratio in Table No. 88-G and the in-plane
shear, stresses due to seismic loads as set forth in Table No.
88-J.
If the wall height-to-thickness ratio exceeds the specified
limits, the wall may be supported by vertical bracing mem-
bers designed in accordance with Chapter 16. The deflec-
tion of such bracing member at design loads shall not
exceed one tenth of the wall thickness.
Exception: The wall may be supported by flexible verti-
cal bracing members designed in accordance with Sec-
tion 8808.2 if the deflection at design loads is not less
than one quarter or more than one third of the wall thick-
ness.
All vertical bracing members shall be attached to floor
and roof construction for their design loads independently
of required wall anchors. Horizontal spacing of vertical
bracing members shall not exceed one half the unsupported
height of the wall or 10 feet (3048 mm).
The wall height may be measured vertically to bracing
elements other than a floor or roof. Spacing of the bracing
elements and wall anchors shall not exceed 6 feet (1829
mm). Bracing elements shall be detailed to minimize the
horizontal displacement of the wall by components of verti-
cal displacements of the floor or roof.
8809.2.2 Veneer. Veneer shall be anchored with approved
anchor ties conforming to the required design capacity
specified in Section 1403.4.3 and placed at a maximum
spacing of 24 inches (610 mm).
Exception: Existing veneer anchor ties may be accept-
able provided the ties are in good condition and conform
to the minimum size, maximum spacing and material
requirements specified in the provisions of the Los
Angeles Building Ordinances in effect prior to October
6, 1933. Said provisions specified that veneer anchor ties
shall be corrugated galvanized iron strips not less than 1
inch (25 mm) in width, 8 inches (203 mm) in length and
7,6 inch (1.6 mm) in thickness and shall be located and
laid in every alternate course in the vertical height of the
wall at a spacing not to exceed 17 inches (432 mm) on
center horizontally. As an alternative, said provisions
specified that such ties may be laid in every fourth course
vertically at a spacing not to exceed 9 inches (229 mm)
on center horizontally.
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688
2008 CITY OF LOS ANGELES BUILDING CODE
EARTHQUAKE HAZARD REDUCTION IN EXISTING BUILDINGS
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♦
The existence and condition of existing veneer anchor
ties shall be verified as follows:
1 . An approved testing laboratory shall verify the loca-
tion and spacing of the ties and shall submit a report to
the Department for approval as a part of the structural
analysis.
2. The veneer in a selected area shall be removed to
expose a representative sample of ties (not less than
four) for inspection by the Department.
8809.2.3 Existing roof, floors, walls, footings and wood
framing. Existing materials, including wood shear walls
utilized in the described configuration, may be used as part
of the lateral load-resisting system, provided that the
stresses in these materials do not exceed the values shown in
Table No. 88-H.
i.3 Strengthening of existing materials. New materials,
including wood shear walls, may be utilized to strengthen por-
tions of the existing seismic resisting system in the described
configurations, provided that the stresses do not exceed the val-
ues shown in Table No. 88-1.
h4 Alternate materials. Alternate materials, designs and
methods of construction may be approved by the Department
in accordance with the provisions of Article 8, Chapter IX of
the Los Angeles Municipal Code.
'.5 Minimum acceptable quality of existing
imreinforced masonry walls.
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J.S.I General provisions. All unreinforced masonry
walls utilized to carry vertical loads and seismic forces par-
allel and perpendicular to the wall plane shall be tested as
specified in this section. All masonry quality shall equal or
exceed the minimum standards established herein or shall
be removed and replaced by new materials. Alternate meth-
ods of testing may be approved by the Department. The
quality of mortar in all masonry walls shall be determined
by performing in-place shear tests or by testing 8-inch (203
mm) diameter cores.
The vertical wall joint between wythes (collar joints)
shall be inspected at the test location after the in-place shear
tests, and an estimate of the percentage of wythe-to-wythe
mortar coverage shall be reported along with the results of
the in-place shear tests. Where the exterior face is veneer,
the type of veneer, its thickness and its bonding and/or ties to
the structural wall masonry shall also be reported.
Alternative methods of testing may be approved by the
Department. Nothing shall prevent pointing with mortar of
all the masonry wall joints before the tests are first made.
Prior to any ipointing, the mortar joints must be raked and
cleaned to rehiove loose and deteriorated mortar. Mortar for
II
pointing shall be Type S or N except masonry cements shall
not be used. All preparation and mortar pointing shall be
done under the continuous inspection of a registered deputy
inspector. At the conclusion of the inspection, the inspector
shall submit a written report to the licensed engineer or
architect responsible for the seismic analysis of the building
setting forth the result of the work inspected. Such report
shall be submitted to the Department for approval as part of
the structural analysis.
All testing shall meet Department-approved testing
method parameters (including rate of load application) and
shall be performed in accordance with the requirements
specified in this section by a testing agency approved by the
Department.
An accurate record of all such tests and their location in
the building shall be recorded and these results shall be sub-
mitted to the Department for approval as part of the struc-
tural analysis.
8809.5.2 Number and location of tests. The minimum
number of tests shall be as follows:
1. At each of both the first and top stories, not less than
two per wall line or line of wall elements providing a
common line of resistance to lateral forces.
2. At each of all other stories, not less than one per wall
element providing a common line of resistance to lat-
eral forces.
3. In any case, not less than one per 1,500 square feet
(139.4 m^) of wall surface and a total of eight.
The shear tests shall be taken at locations representative
of the mortar conditions throughout the entire building, tak-
ing into account variations in workmanship at different
building height levels, variations in weathering of the exte-
rior surfaces and variations in the condition of the interior
surfaces due to deterioration caused by leaks and condensa-
tion of water and/or by the deleterious effects of other sub-
stances contained within the building. Where the higher h/t
ratios allowed in Notes 4 and 5 of Table No. 88-G are to be
used, the in-place shear tests taken at the top story shall be
included in the 80 percent of the shear tests used to deter-
mine the minimum mortar shear strength.
The exact test or core location shall be determined at the
building site by the licensed engineer or architect responsi-
ble for the seismic analysis of the subject building.
8809.5.3 In-place shear tests. The bed joints of the outer
wythe of the masonry shall be tested in shear by laterally
displacing a single brick relative to the adjacent bricks in
that wythe. The mortar in the opposite head joint of the brick
to be tested shall be removed and cleaned prior to testing.
The minimum quality mortar in 80 percent of the shear tests
shall not be less than the total of 30 psi (206.9 kPa) plus the
axial stress in the wall at the point of the test. The shear
stress shall be based on the gross area of both bed joints and
shall be that shear stress at which movement of the masonry
is first measured or at which cracking first appears.
An internal caliper, graduated in 0.001 of an inch (0.025
mm) increments shall be used to measure movement of the
masonry unit. A hydraulic jack equipped with a pressure
gauge graduated in increments of 50 psi (345 kPa) or less
shall be used. The jack load shall be applied at a rate not
exceeding 5,000 pounds (22 240 N) per minute.
The test shall be conducted by a minimum of two techni-
cians. Load and displacement readings shall be recorded at
the following intervals:
1. At a caliper reading of 0.001 inch (0.025 nmi);
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2008 CITY OF LOS ANGELES BUILDING CODE
689
EARTHQUAKE HAZARD REDUCTION IN EXISTING BUILDINGS
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2. At first visually observed sign of movement or crack-
ing of the mortar or masonry unit;
3. At a caliper reading of 0.02 inch (0.51 mm); and
4. The ultimate load on the unit.
The masonry unit to be tested shall not be located adja-
cent to a bond course in a brick wall laid in common bond.
Tests to evaluate the mortar quality of structural walls shall
not be conducted in masonry veneer.
Walls with mortar values which are consistently low and
do not meet the minimum quality values specified in this
section shall be entirely pointed per U.B.C. Standard 21-8
except that the depth of joint penetration shall be IV2 inch
(38 mm) in lieu of the V4 inch (19 mm) specified.
.5.4 Core tests, A minimum number of mortar test
specimens equal to the number of required cores shall be
prepared from the cores and tested as specified herein. The
mortar joint of the outer wythe of the masonry core shall be
tested in shear by placing the circular core section in a com-
pression testing machine with the mortar bed joint rotated
15 degrees from the axis of the applied load. The mortar
joint tested in shear shall have an average ultimate stress of
20 psi (138 kPa) based on the gross area. The average shall
be obtained from the total number of cores made. If test
specimens cannot be made from cores taken, the shear value
shall be reported as zero.
8809.6 Testing of shear Ibolts. One fourth of all new shear
bolts and dowels embedded in unreinforced masonry walls
shall be tested by a registered deputy building inspector using a
torque calibrated wrench to the following minimum torques:
'/2-inch-diameter bolts or dowels
40 foot-pounds
^/g-inch-diameter bolts or dowels
50 foot-pounds
^/4-inch-diameter bolts or dowels
60 foot-pounds
For SI: 1 inch = 25.4 mm, 1 foot-pound = 1 .356 Nm.
No bolts exceeding V4-inch (19. 1 mm) shall be used. All nuts
shall be installed over malleable iron or plate washers when
bearing on wood and heavy cut washers when bearing on steel.
8809.7 Determination of allowable stresses for design
methods based on test results.
8809.7.1 Design shear values. Design seismic in-plane
shear stresses shall be substantiated by tests performed as
specified in Section 8809.5.3 and 8809.5.4.
Design stresses shall be related to test results obtained in
accordance with Table No. 88-J. Intermediate values
between 3 and 10 psi (20.7 kPa and 69 kPa) may be interpo-
lated.
8809.7.2 Design compression and tension values. Com-
pression stresses for unreinforced masonry having a mini-
mum design shear value of 3 psi (20.7 kPa) shall not exceed
100 psi (690 kPa). Design tension values for unreinforced
masonry shall not be permitted.
8809.8 Five percent of the existing rod anchors utilized as all or
part of the required wall anchors shall be tested in puUout by an
approved testing laboratory. The minimum number tested shall
be four per floor, with two tests at walls with joists framing into
the wall and two tests at walls with joists parallel to the wall.
The test apparatus shall be supported on the masonry wall at a
minimum distance of the wall thickness from the anchor tested.
The rod anchor shall be given a preload of 300 pounds (136 kg)
prior to establishing a datum for recording elongation. The ten-
sion test load reported shall be recorded at '/g-inch (3.2 mm)
relative movement of the anchor and the adjacent masonry sur-
face. Results of all tests shall be reported. The I'eport shall
include the test results as related to the wall thickness and joist
orientation. The allowable resistance value of the existing
anchors shall be 40 percent of the average of those tested
anchors having the same wall thickness and joist orientation.
8809.9. Qualification tests for devices used for wall anchorage
shall be tested with the entire tension load canied on the
enlarged head at the exterior face of the wall. Bond on the part
of the device between the enlarged head and the interior wall
face shall be eliminated for the qualification tests. The resis-
tance value assigned the device shall be 20 percent of the aver-
age of the ultimate loads.
SECTION 8810
INFORMATION REQUIRED ON PLANS
).l General. In addition to the seismic analysis required
elsewhere in this chapter, the licensed engineer or architect
responsible for the seismic analysis of the building shall deter-
mine and record the information required by this section on the
approved plans.
8810.2 Construction details. The following requirements,
with appropriate construction details, shall be made part of the
approved plans:
1 . All unreinforced masonry walls shall be anchored at the
roof and ceiling levels by tension bolts through the wall
as specified in Table No. 88-1, or by an approved equiva-
lent at a maximum anchor spacing of 6 feet (1829 mm).
Anchors installed in accordance with Section 8114 of
this Code shall be accepted as conforming to this require-
ment.
All unreinforced masonry walls shall be anchored at
all floors and ceiling with tension bolts through the wall
or by existing rod anchors at a maximum anchor spacing
of 6 feet (1829 mm). All existing rod anchors shall be
secured to the joists to develop the required forces. The
Department may require testing to verify the adequacy of
the embedded ends of existing rod anchors. Tests, when
required, shall conform to Section 8809.8.
Exception: Walls need not be ancliored to ceiling sys-
tems that, because of their low mass and/or relative
location with respect to the floor or roof systems,
would not impose significant normal forces on the
wall and cause out-of-plane wall failures.
At the roof and all floor levels, the anchors nearest the
building corners shall be combination shear and tension
anchors located not more than 2 feet (610 mm) horizon-
tally from the inside corners of the walls.
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2008 CITY OF LOS ANGELES BUILDING CODE
EARTHQUAKE HAZARD REDUCTION IN EXISTING BUILDINGS
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When access to the exterior face of the masonry wall is
prevented by proximity of an existing building, wall
anchors conforming to Items 5 and 7 in Table No. 88-1
may be used.
Alternative devices to be used in lieu of tension bolts
for masonry wall anchorage shall be tested as specified
in Section 8809.9.
2. Diaphragm chord stresses of horizontal diaphragms
shall be developed in existing materials or by addition of
new materials.
3. Where trusses and beams, other than rafters or joists are
supported on masonry, independent secondary columns
shall be installed to support vertical loads of the roof or
floor members.
4. Parapets and exterior wall appendages not capable of
resisting the forces specified in this Chapter shall be
removed, stabilized or braced to ensure that the parapets
and appendages remain in their original position.
The maximum height of an unbraced, unreinforced
masonry parapet above the lower of either the level of
tension anchors or roof sheathing shall not exceed one
and one half times the thickness of the parapet wall. If the
required parapet height exceeds this maximum height, a
bracing system designed for the force factors specified in
Table Nos. 88-E and 88-F for walls shall support the top
of the parapet. Parapet corrective work must be per-
formed in conjunction with the installation of tension
roof anchors.
5. All deteriorated mortar joints in unreinforced masonry
walls shall be pointed with Type S or N mortar. Prior to
any pointing, the wall surface must be raked and cleaned
to remove loose and deteriorated mortar. All preparation
and pointing shall be done under the continuous inspec-
tion of a registered deputy inspector certified to inspect
masonry or concrete. At the conclusion of the project, the
inspector shall submit a written report to the Department
setting forth the portion of work inspected.
6. Repair details of any cracked or damaged unreinforced
masonry wall required to resist forces specified in this
chapter.
8810.3 Existing construction. The following existing con-
struction information shall be made a part of the approved
plans:
1 . The type and dimensions of existing walls and the size
and spacing of floor and roof members.
2. The extent and type of existing wall anchorage to floors
and roof.
3. The extent and type of parapet corrections which were
performed in accordance with Section 81 14 of this Code.
4. Accurately dimensioned floor plans and masonry wall
elevations showing dimensioned openings, piers, wall
thickness and heights, and veneer and anchorages.
5. The location of cracks or damaged portions of
unreinforced masonry walls requiring repairs.
6. The type of interior wall surfaces and ceilings, and if
reinstalling or anchoring existing plaster is necessary.
7. The general condition of the mortar joints and if the
joints need pointing.
8. The location of the shear tests shall be shown on the floor
plans and building wall elevations, and the complete test
report shall be reproduced on the approved plans.
SECTION 8811
DESIGN CHECK - COMPATIBILITY OF ROOF
DIAPHRAGM STIFFNESS TO UNREINFORCED
MASONRY WALL OUT-OF-PLANE STABILITY
8811.1 General. The requirements of this section are in addi-
tion to the requirements of Sections 8808 and 8809. The rela-
tive stiffness and strength of a diaphragm governs the amount
of amplification of the seismic ground motion by the dia-
phragm and, therefore, a diaphragm stiffness and
strength-related check of the out-of-plane stability of
unreinforced masonry walls anchored to wood diaphragms
shall be made. This section contains a procedure for the evalua-
tion of the out-of-plane stability of unreinforced masonry walls
anchored to wood diaphragms that are coupled to shear-resist-
ing elements.
8811.2 Requirements for terms. The requirements for the
terms used in this Chapter shall be defined as follows:
CROSS WALL. A wood-framed wall having a
height-to-length ratio of:
1. Two to one for wood structural panels.
2. One to one for gypsum board, gypsum lath, cement plas-
ter or diagonal sheathing.
The total strength of all cross walls located within any
40-foot (12 192 mm) length of diaphragm measured in the
direction of the diaphragm span shall not be less than 30 per-
cent of the strength of the diaphragm in the direction of consid-
eration.
DEMAND-CAPACITY RATIO (DCR). A ratio of the fol
lowing: •
1. Demand = lateral forces due to 33 percent of the weight
of the diaphragm and the tributary weight of the walls
and other elements anchored to the diaphragm.
2. Capacity = diaphragm total shear strength in the direc-
tion under consideration as determined using the values
in Table No. 88-K or Table No. 88-L.
8811.3 Notations.
D = depth of diaphragm, in feet (mm), measured perpendic-
ular to the diaphragm span.
h/t = height-to-thickness ratio of an unreinforced masonry
wall. The height shall be measured between wall
anchorage levels and the thickness shall be measured
through the wall cross section.
L = span of diaphragm between masonry shear walls or
steel frames.
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2008 CITY OF LOS ANGELES BUILDING CODE
691
EARTHQUAKE HAZARD REDUCTION IN EXSSTBNG BUILDINGS
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V^ = total shear capacity of cross walls in the direction of
analysis immediately below the diaphragm level being
investigated as determined by using Tables Nos. 88-K
and 88-L.
v„ = maximum shear strength in pounds per foot for a dia-
phragm sheathed with any of the materials given in
Tables Nos. 88-K and 88-L.
W^ = total dead load of the diaphragm plus the tributary
weight of the walls anchored to the diaphragm, the trib-
utary ceiling and partitions and the weight of any other
permanent building elements at the diaphragm level
under investigation.
8811.4 Design check procedure.
8811.4,1 Gemeral. The demand-capacity ratio (DCR) for
the building under investigation shall be calculated using
the following equations:
DCR = 0.33WJ2v.n
CFormuIall=3)
or
DCR = 0.33W/(2v,D + VJ
8811.4.2 Diaphragm deflection. The calculated DCR shall
be to the left of the curve in Figure No. 88- A. Where the cal-
culated DCR is outside (to the right of) the curve, the dia-
phragm deflection limits are exceeded, and cross walls may
be used to reduce the deflection.
8811.4.3 Unreinforced masonry wall out-of-plane stabil-
ity. The DCR shall be calculated discounting any cross
walls. If the DCR corresponding to the diaphragm span is to
the right of the curve in Figure No. 88-A, the region within
the curve at and below the intersection of the diaphragm
span with the curve may be used to determine the allowable
h/t values per Table No. 88-G.
SECTION 8812
Notwithstanding any other provision of this Code to the con-
trary, it shall be unlawful for any person, firm, or corporation to
maintain, use, or occupy any building within the scope of this
chapter which does not meet the minimum earthquake stan-
dards specified in this chapter.
Any person who violates, causes or permits another person
to violate this provision is guilty of a misdemeanor. Any person
includes an owner, lessor, sublessor, manager or person in con-
trol of a building subject to this chapter. This term shall not
include any person who is merely a tenant or other individual
occupying any dwelling unit, efficiency dwelling unit, guest
room or suite in a building. The legal owner of a building is that
person, firm, corporation, partnership or other entity whose
name or title appears on the record with the Office of the
County Recorder, as well as all successors or assignees of these
persons.
Exception: This section shall not apply to any building on
which work is proceeding in compliance with the time lim-
its set forth in this chapter, and/or in compliance with any
extensions of time granted by the Department or the Board;
or any action, order or determination made by the Depart-
ment or the Board in the implementation of this chapter.
SECTION 8813
SPECIAL REQUIREMENTS
FOR VACANT BUILDINGS
8813.1 General. This section shall apply to every vacant
unreinforced masonry bearing wall building within the scope
of this Chapter which has not complied with the requirements
contained in this Chapter.
8813.2 Enforcement. When the Department determines that a
building is within the scope of this section, it shall notify the
owner and order the owner to bring the building into compli-
ance with the provisions of this section. Compliance with such
an order shall be accomplished within the time limits set forth
herein and any extensions of time granted by the Department. If
the owner does not comply within such time limits, then the
Department may order the demolition of the building or struc-
ture in accordance with the provisions of Section 8903.
rFormula 11=4) ^^^^'^ Time for compliance.
For a one-story building with wall anchors installed pur-
suant to Section 8808.3, either before or within 60 days
after notice is given by the Department:
Within 180 days after notice is given pursuant to this
section, the owner shall submit to the Department either
plans and a structural analysis for the proposed structural
alterations of the building necessary to comply with the
minimum requirements of this Chapter, or an application
for demolition of the building or structure.
If the owner elects to perform the proposed structural
alterations, then within 270 days after notice is given
pursuant to this section, the owner shall obtain the neces-
sary permits for strengthening the building or structure;
within 90 days of obtaining a permit to strengthen the
building, the owner shall commence strengthening
work; and within 1 8 months after notice is given pursu-
ant to this section, the owner shall complete all strength-
ening work.
If the owner elects to demolish the building, then
within 210 days after notice is given pursuant to this sec-
tion, the owner shall obtain permits for the demolition of
the building or structure; within 21 days of obtaining a
demolition permit, the owner shall commence demoli-
tion; and within 300 days after notice is given pursuant to
this section the owner shall complete the demolition of
the building or structure.
Time for compliance for all other buildings:
Within 60 days after notice is given pursuant to this
section, the owner shall submit to the Department either
plans and a structural analysis for theproposed structural
alterations" of the building necessary to comply with the
minimum requirements of this Chapter, or an application
for demolition of the building or structure.
If the owner elects to perform the necessary alter-
ations, then within 120 days after notice is given pursu-
ant to this section, the owner shall obtain the necessary
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2008 CITY OF LOS ANGELES BUDLDING CODE
EARTHQUAKE HAZARD REDUCTION IN EXISTING BUILDINGS
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permits for strengthening the building or structure;
within 21 days of obtaining a permit, the owner shall
begin work; and within 365 days after notice is given
pursuant to this section, the owner shall complete all
strengthening work.
If the owner elects to perform the necessary alter-
ations, then within 120 days after notice is given pursu-
ant to this section, the owner shall obtain the necessary
permits for strengthening the building or structure; and
within 120 days after obtaining the demolition permit.
the owner shall complete the demolition of the building
or structure.
8813.4 Special provisions for damaged buildings. An
unreinforced masonry bearing wall building which is damaged
or partially destroyed by fire, flood, wind, earthquake or other
calamity or act of God or the public enemy shall be repaired or
demolished within 6 months of such damage or destruction.
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FIGURE NO. 88
ACCEPTABLE SPAN FOR DIAPHRAGMS
(BASED ON DISPLACEMENT CONTROL CONCEPTS)
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2008 CITY OF LOS ANGELES BUILDING CODE
693
EARTHQUAKE HAZARD REDUCTION IN EXISTING BUILDINGS
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TABLE NO. 88- A
RATING CLASSIFICATIONS
TYPE OF BUILDING >
CLASSIFICATION
Essential Building
I
High Risk Building
II
Medium Risk Building
III
Low Risk Building
IV
TABLE NO. 88-B
TIME LIMITS FOR COMPLIANCE
REQUIRED ACTION BY OWNER
OBTAIN BUILDING
PERMIT WITHIN
COMMENCE
CONSTRUCTION WITHIN
COMPLEETE
CONSTRUCTION WITHIN
Complete Structural Alterations or Building Demolition
1 year
180 days*
3 yeais
Wall Anchor Installation
180 days
270 days
1 year
*Measured from date of building permit issuance.
TABLE NO. 88-C
SERVICE PROVISIONS AND EXTENDED TIME PROVISIONS*
, RATING OCCUPANT
CLASSIFICATION
EXTENSION OF TIME IF WALL ANCHORS LOAD
MINIMUM TIME PERIODS ARE INSTALLED
SERVICE OF ORDER
I (Highest Priority)
Any
1 Year
II
100 or more
lYear
90 Days
III
100 or more
1 Year
1 Yeiir
More than 50, but less than 100
1 Year
2 Years
More than 19, but less than 51
1 Year
3 Years
IV (Lowest Priority)
Less than 20
1 Year
4 Years
**B uildings that have obtained a building permit for wall anchors and met the time schedule in Table 88-B for wall anchor installation may utilize die time extensions,
which are permitted in Table 88-C prior to the adoption of this ordinance.
TABLE NO. 88-D
HORIZONTAL FORCE FACTORS BASED ON RATING CLASSIFICATION
RATING CLASSIFICATION
IKCS
I
0.186
II
0.133
m&iv
0.100
TABLE NO. 88-E
HORIZONTAL FORCE FACTORS "/S" FOR PARTS OR PORTIONS OF STRUCTURES
RATING CLASSIFICATION
IS
I
1.50
II
1.00
III & IV
0.75
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2008 CITY OF LOS ANGELES BUILDING CODE
EARTHQUAKE HAZARD REDUCTION IN EXISTING BUILDINGS
TABLE NO. 88-F
HORIZONTAL FORCE FACTOR "Cp" FOR PARTS OR PORTIONS OF BUILDINGS OR OTHER STRUCTURES '
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PART OR PORTION OF BUILDINGS
DIRECTION OF FORCE
VALUE OF C„
Exterior bearing and nonbearing walls; interior bearing walls and partitions; interior
nonbearing walls and partitions over 10 feet in height; masonry fences over 6 feet in
height.
Normal to flat surface
0.20
Cantilever parapet and other cantilever walls, except reta;ining walls.
Normal to flat surface
1.00
Exterior and interior ornamentations and appendages.
Any direction
1.00
When connected to or a part of a building: towers, tanks, towers and tanks plus
contents, racks over 8 feet 3 inches in height plus contents, chimneys, smokestacks
and penthouses.
Any direction
0.20 2-4
When connected to or a part of a building: rigid and rigidly mounted equipment and
machinery not required for continued operation of essential occupancies. ^
Any horizontal direction
0.20 3
Tanks plus effective contents resting on the ground.
Any direction
0.12
Floors and roofs acting as diaphragms.
In the plane of the diaphragm
0.12 6
Prefabricated structural elements, other than walls, with force applied at center of
gravity of assembly.
Any horizontal direction
0.30
Connections for exterior panels or elements.
Any direction
2.00
For SI: I inch = 25.4 mm, 1 foot = 305 mm.
1 . See Section 8808.2 for use of Cp.
2. When located in the upper portion of any building with a height to depth ratio of 5 to 1 or greatei; the value shall be increased by 50 percent.
3. For flexible and flexible mounted equipment and machinery, the appropriate values for Cp shall be determined with consideration given to both the dynamic prop-
erties of the equipment and machinery and to the building and building or structure in which it is placed.
4. The Wp for storage racks shall be the weight of the racks plus contents. The value of Cp for racks over two storage support levels in height shall be 0. 1 6 for the levels
below the top two levels.
5. The design of the equipment and machinery and their anchorage is an integral part of the design and specification of that equipment and machinery. The structure to
which the equipment or machinery is mounted shall be capable of resisting the anchorage forces (see also Section 13.6.5 of ASCE-7).
6. Floor and roofs acting as diaphragms shall be designed for a minimum force resulting from a Cp of 0. 1 2 applied to Wp unless a greater force results from the distri-
bution of lateral forces in accordance with Section 12.8.3 of ASCE-7.
TABLE NO. 88-G
ALLOWABLE VALUE OF HEIGHT-TO-THICKNESS RATIO OF UNREINFORCED MASONRY WALLS WITH MINIMUM QUALITY MORTAR ^-^
BUILDINGS W/ CROSS WALLS AS
DEFINED BY SECTION 8803
ALL OTHER BUILDINGS
Walls of One-Story Buildings
13-16 3.4.5
13
First-Story Wall of Multistory Buildings
16
15
Walls in Top Story of Multistory Buildings
9.143,4,5
9
All Other Walls .
16
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1 . Minimum quality mortar shall be determined by laboratory testing in accordance with Section 8809.5 of this Code.
2. This table is not applicable to buildings of Rating Classification I. Walls of buildings within rating classification I shall be analyzed in accordance with Section
8808.6 of this Code.
3 . The minimum mortar shear strengths required in Footnotes 4 and 5 shall be that shear strength without the effect of axial stress in the wall at the point of the test.
4. The larger height-to-thickness ratio may be used where mortar shear tests in accordance with Section 8809.5.3 of this Code establish a minimum mortar shear
strength of not less than 100 psi (690 kPa) or where the tested mortar shear strength is not less than 60 psi (414 kPa) and a visual examination of the vertical
wythe-to-wythe wall joint (collar joint) indicates not less than 50 percent mortar coverage.
5. Where a visual examination of the collar joint indicates not less than 50 percent mortar coverage and the minimum mortar shear strength when established in accor-
dance with Section 8809.5.3 of this Code is greater than 30 psi (207 kPa) but less than 60 psi (414 kPa), the allowable height-to-thickness ratio may be determined
by linear interpolation between the laiger and smaller ratios in direct proportion to the mortar shear strength.
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2008 CITY OF LOS ANGELES BUILDING CODE
695
EARTHQUAKE HAZARD REDUCTION IN EXISTING BUILDINGS
TABLE NO. 88-H
VALUES FOR EXISTING MATERIALS
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EXISTING MATERIALS OR CONFIGURATION OF MATERIALS ^
ALLOWABLE VALUES
1. HORIZONTAL DIAPHRAGMS
a. Roofs with straight sheathing and roofing applied directly to the sheathing.
100 lbs. per foot for seismic shear.
b. Roofs with diagonal sheathing and roofing applied directly to the sheathing.
400 lbs. per foot for seismic shear.
c. Floors with straight tongue-and-groove sheathing.
150 lbs. per foot for seismic shear.
d. Floors with straight sheathing and finished wood flooring.
300 lbs. per foot for seismic shear.
e. Floors witii diagonal sheathing and finished wood flooring.
450 lbs. per foot for seismic shear.
f. Floors or roofs with straight sheathing and plaster applied to the joist or values for
items 1(a) and 1(c) rafters.-^
Add 50 lbs. per foot to the allowable values for items 1(a) and 1(c).
2. SHEAR WALL
Wood stud walls with lath and plaster
100 lbs. per foot each side for seismic shear.
3. PLAIN CONCRETE FOOTINGS
f = 1500 psi unless otherwise shown by tests.
4. DOUGLAS FIR WOOD
Allowable stress same as No. 1 D.F. ^
5. REINFORCING STEEL
/'= 18,000 lbs. per square inch maximum.
6. STRUCTURAL STEEL
/'= 20,000 lbs. per square inch maximum.
For SI: 1 pound per foot = 0.0146 N/m, 1 pound per square inch (psi) = 6.895 kPa.
Notes:
L Material must be sound and in good condition.
2. The wood lath and plaster must be reattached to existing joists or rafters in a manner approved by the Department.
3. Stresses given may be increased for combinations of loads as specified in Section 8808.7.2 of this Code.
TABLE NO. 88-D
ALLOWABLE VALUES OF NEW MATERIALS USED IN CONJUNCTION WITH EXISTING CONSTRUCTION
NEW MATERIALS OR CONFIGURATION OF MATERIALS ^
ALLOWABLE VALUES
1. HORIZONTAL DIAPHRAGMS
Plywood sheathing applied directly over existing straight sheathing with ends of plywood sheets
bearing on joists or rafters and edges of plywood located on center of individual sheathing boards.
Same as specified in Table 2306.3.1 of this Code for
blocked diaphragms.
2. SHEAR WALLS
a. Plywood sheathing applied directly over existing wood studs. No value shall be given to plywood
applied over existing plaster or wood sheathing.
b. Dry wall or plaster applied directly over existing wood studs.
c. Dry wall or plaster applied to plywood sheathing over existing wood studs.
Same as values specified in Table 2306.4.1 for shear
walls.
75 percent of the values specified in Table 2306.4.5.
33 V, percent of the values specified in Table 2306.4.5.
3. SHEAR BOLTS
Shear bolts and shear dowels embedded a minimum of 8 inches into unreinforced masonry walls.
Bolt centered in a 2V2-inch-diameter hole with drypack or an approved non-shrink grout around
circumference of bolt or dowel.'' ^
133 percent of the values for plain solid masonry
specified in Table No. 88-M . No values larger than
those given for V^-inch bolts shall be used.
4. TENSION BOLTS
Tension bolts and tension dowels extending entirely through unreinforced masonry secured with
bearing plates on far side of wall with at least 30 square inches of area.^' ^' ''
1200 lbs. per bolt or dowel.
5. COMBINATION SHEAR AND TENSION WALL ANCHORS
a. Bolts extending to the exterior face of the wall with a 2V2-inch round plate under the head. Install
as specified for shear bolts. Spaced not closer than 12 inches on center. '•^■^
b. Bolts or dowels extending to the exterior face of the wall with a 2V2-inch round plate under the
head and drill at an angle of 22'A degrees to the horizontal. Installed as specified for shear
bolts. '•'■3
c. Through bolt with bearing plate for tension per Item 4. Combined with minimum eight-inch
grouted section for shear per Item 3.
600 lbs. per bolt for tension.'' See Item 3
(SHEAR BOLTS) for shear values.
1200 lbs per bolt or dowel for tension.'' See Item 3
(SHEAR BOLTS) for shear values.
See Item 4 (TENSION BOLTS) for tension values.''
See Item 3 (SHEAR BOLTS) for shear values.
6. INFILLED WALLS
Reinforced masonry infilled openings in existing unreinforced masonry walls with keys or dowels to
match reinforcing.
Same as values specified for unreinforced masonry
walls.
7. REINFORCED MASONRY
Masonry piers and walls reinforced per Sections 2106 and 2107.
Same as values determined per Section 2 106.
8. REINFORCED CONCRETE
Concrete footings, walls and piers reinforced as specified in Chapter 19 and designed for tributary loads.
Same as values specified in Chapter 19.
9. EXISTING FOUNDATION LOADS
Foundation loads for structures exhibiting no evidence of settlement.
Calculated existing foundation loads due to maximum
dead load plus live load may be increased 25 percent
for deadload, and may be increased 50 percent for dead
load plus seismic load required by this Chapter.
For SI: 1 inch = 25.4 mm, 1 square inch = 645.16 mnf , 1 pound = 4.45 N.
1 . Bolts and dowels to be tested as specified in Section 8809.6 of this Code.
2. Bolts and dowels to be V^-inch minimum in diameter.
3. Drilling for bolts and dowels shall be done with an electric rotary drill. Impact tools shall not be used for drilling holes or tightening anchor and shear bolt nuts.
4. Allowable bolt and dowel values specified are for installations in minimum three wythe walls. For installations in two wythe walls, use 50 percent of the value specified, except that no
value shall be given to tension bolts that do not extend entirely through the wall and are secured with bearing plates on the far side.
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696
2008 CITY OF LOS ANGELES BUILDING CODE
EARTHQUAKE HAZARD REDUCTION IN EXISTING BUILDINGS
TABLE NO. 88-J
ALLOWABLE SHEAR STRESS FOR TESTED UNREINFORCED MASONRY WALLS
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EIGHTY PERCENT OF TEST RESULTS IN PSI
NOT LESS THAN
AVERAGE TEST RESULTS OF CORES IN PSI
SEISMIC IN-PLANE SHEAR BASED ON GROSS AREA
30 plus axial stress
20
3 psi*
40 plus axial stress
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4 psi*
50 plus axial stress
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5 psi*
100 plus axial stress or more
67 or more
10 psi max*
For SI: 1 pound per square inch = 6.895 kPa.
* Allowable shear stress may be increased by addition of 10 percent of the axial stress due to the weight of the wall directly above.
TABLE NO. 88-K
VALUES FOR EXISTING MATERIALS
EXISTING MATERIALS OR CONFIGURATION OF MATERIALS ^
ALLOWABLE VALUES
1 . HORIZONTAL DIAPHRAGMS
a. Roofs with straight sheathing and roofing applied directly to the sheathing.
b. Roofs with diagonal sheathing and roofing applied directly to the sheathing.
100 lbs. per foot for seismic shear.
250 lbs. per foot for seismic shear.
2. CROSSWALLS 2. 3
a. Plaster on wood or metal lath.
b. Plaster on gypsum lath.
c. Gypsum wall board, unlocked edges.
d. Gypsum wall board, blocked edges.
per side: 200 lbs. per foot for seismic shear.
175 lbs. per foot for seismic shear.
75 lbs. per foot for seismic shear.
125 lbs. per foot for seismic shear.
For SI: 1 pound per foot = 0.0 146 N/m.
1 . Materials must be sound and in good condition.
2. For crosswalls, values of all materials may be combined, except the total combined value shall not exceed 300 lbs. per foot for seismic shear
3. The cross wall aspect ratio for plaster on wood, metal, or gypsum lath and gypsum wall board shall be a maximum height to width ratio of 1:1.
TABLE NO. 88-L
ALLOWABLE VALUES OF NEW MATERIALS USED IN CONJUNCTION WITH EXISTING CONSTRUCTION
NEW MATERIALS OR CONFIGURATION OF ALLOWABLE VALUES
NEW AND EXISTING MATERIALS ^
1. HORIZONTAL DIAPHRAGMS
Plywood sheathing appUed directly over existing straight sheathing with ends of
plywood sheets bearing on joists or rafters and edges of plywood located on
center of individual sheathing boards.
225 lbs. per foot for seismic shear.
1, CROSSWALLS ^
a. Plywood sheathing applied directly over existing wood studs. No value shall
be given to plywood applied over existing plaster or wood sheathing.
b. Drywall or plaster applied directly over existing wood studs.
1.33 times the values specified in Table 2306.4.1 for
shear walls.
100 percent of the values specified in Table 2306.4.5.
For SI: 1 pound per foot = 0.0 1 46 N/m.
1. Materials must be sound and in good condition.
2. For cross walls, values of all materials may be combined, except the total combined value shall not exceed 300 lbs. per foot for seismic shear.
3 . The cross wall aspect ratio for drywall, plaster and gypsum wall board shall be a maximum height to width ratio of 1 : 1 , and for plywood shall be a maximum height
to width ratio of 2:1.
TABLE NO. 88-M
ALLOWABLE SHEAR ON BOLTS
DIAMETER BOLT (inches)
EMBEDMENT (Inches)
SOLID MASONRY(shear In pounds)
GROUTED MASONRY (shear In pounds)
\
4
350
750
%
4
500
750
%
5
750
1100
%
6
750
1100
1
7
750
1100
l-'/s
8
750
1100
For SI: 1 inch = 25.4 mm, 1 pound = 0.454 kg.
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2008 CITY OF LOS ANGELES BUILDING CODE
697
698 2008 CITY OF LOS ANGELES BUDLDDNG CODE
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CHAPTER 89
ABATEMENT OF BUILDINGS, STRUCTURES, PREMISES AND
PORTIONS THEREOF WHICH CONSTITUTE A NUISANCE OR ARE
HAZARDOUS, OR SUBSTANDARD
SECTION 8901
GENERAL
L.l Purpose. It is the purpose of the provisions of this
Chapter to provide a just, equitable and practicable method, to
be cumulated with and in addition to any other remedy avail-
able by law, whereby buildings, structures, premises and por-
tions thereof which are within the scope of this Chapter may be
vacated, secured, cleaned, repaired, demolished or removed.
89®1.2 Scope. The provisions of this Chapter shall apply to all
existing buildings, structures, premises and portions thereof
which are a nuisance, a hazard or a substandard residential
building.
All sections of Chapter IX of the Los Angeles Municipal
Code are applicable to those buildings determined to be "sub-
standard residential buildings" as defined herein.
The Department of Building and Safety may approve certain
deviations from the requirements of Chapter IX of the Los
Angeles Municipal Code concerning substandard residential
buildings, provided the items concerned were built in compli-
ance with code or ordinance provisions in effect at the time of
construction, and provided, further, that such additional cor-
rections as may be required by the Department are made so as
to ensure that the building complies with the intent of the Chap-
ter.
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L.3 Interference prohibited. It shall be unlawful for any
person to obstruct, impede or interfere with any representative
of the Department, including contractors hired by the Depart-
ment or with the inspector of any Department of this city, or
with any person who owns or holds any estate or interest in any
building or structure which has been ordered to be vacated,
secured, cleaned, repaired, demolished or removed, or with any
person to whom such building or structure has been lawfully
sold pursuant to the provisions of this Chapter whenever any
such representative of the Department, inspector, purchaser or
person having an interest or estate in such building or structure
is engaged in inspecting, securing, cleaning, vacating, repair-
ing, demolishing or removing any such building or structure
pursuant to the provisions of this Chapter, or in performing any
necessary act preliminary to or incidental to such work, or
authorized or directed pursuant hereto.
8901.4 Liability of officers or employees of the city.
8901.4,1 City employees not personally liable. No officer,
agent, or employee of the City of Los Angeles shall be per-
sonally liable for any damage incurred or alleged to be
incurred as a result of any act required, permitted or autho-
rized to be done or performed in the discharge of his or her
duties pursuant to this Chapter.
L.4.2 Suits to be defended by city attorney. Any suit
brought against any officer, agent or employee of the City of
Los Angeles as a result of any act required, permitted or
authorized in the discharge of his or her duties under this
Chapter shall be deemed an action against the City and shall
be defended by the city attorney.
8901.5 Other provisions of the municipal code unaffected
hereby. The provisions of this Chapter shall not be deemed to
repeal by implication any other provision of the Los Angeles
Municipal Code and the adoption hereof shall not be deemed to
affect or diminish the power or authority of an officer or
employee of the City to condemn any building or structure
erected or maintained in violation of any other provisions of
said code.
8901.6 Separability of provisions of this chapter. The City
Council hereby declares that it would have adopted each sepa-
rate provision of this Chapter, regardless of the adoption of any
other provision, and if any remedy provided for in this Chapter
be held unavailable or limited in effect, such limitation shall not
affect the application of any other provision of this Chapter.
8901.7 Unless otherwise expressly provided, the remedies or
penalties provided by this Chapter are cumulative to each other
and to the remedies or penalties available under law.
The provisions set forth in Article 8 of this chapter shall not
apply to proceedings conducted pursuant to this Chapter. How-
ever, the Superintendent of Building and the Board may utilize
the procedures described therein, to the extent necessary to
assure that an owner has a full and fair opportunity to present
evidence relevant to the abatement of the public nuisance con-
ditions on that owner's property.
8901.8 Wherever service is required in this Chapter, that ser-
vice may be accomplished by personal service as authorized in
Sections 415.10, 415.20, and 415.21 of the California Code of
Civil Procedure.
SECTION 8902
DEFINITIONS
For the purpose of this Chapter, certain terms are defined as fol-
lows:
DEPARTMENT. Refer to Chapter 2 of this Code.
HAZARDOUS BUILDING. Any building, structure or por-
tion thereof which has any or all of the hereinafter described
defects:
1. Whenever any door, aisle, passageway, stairway or
other means of exit is not of sufficient width or size, or
is not so arranged as to provide safe and adequate
means of exit, in case of fire or panic, for all persons
housed or assembled therein who would be required to,
or might, use such door, aisle, passageway, stairway or
other means of exit.
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2008 CITY OF LOS ANGELES BUILDING CODE
699
ABATEMENT OF BUILDINGS, STRUCTURES, PREMJSES AND PORTIONS THEREOF
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2. Whenever the stress in any materials, member or por-
tion thereof, due to all dead and live loads, is more than
one and one-half times the working stress or stresses
allowed in Article 1 of Division IX of the Los Angeles
Municipal Code.
3. Whenever any portion thereof has been damaged by
earthquake, wind, flood, or by any other cause, in such
a manner that the structural strength or stability thereof
is appreciably less than it was before, such catastrophe
and is less than the minimum requirements of this Code
for a new building of similar structure, purpose or loca-
tion.
4. Whenever any portion of any member or appurtenance
thereof is likely to fall, or to become detached or dis-
lodged, or to collapse and thereby injure persons or
damage property.
5. Whenever any portion of a building or any member or
appurtenance thereof or ornamentation on the exterior
thereof is not of sufficient strength or stability or is not
so anchored, attached or fastened in place so as to be
capable of resisting a wind pressure of one half that
specified in this Code without exceeding the working
stresses permitted in this Code.
6. Whenever any portion thereof has settled to such an
extent that walls or other structural portions have mate-
rially less resistance to winds or earthquakes than is
required in the case of new construction.
7. Whenever the building or structure, or any portion
thereof, because of dilapidation, deterioration, decay,
faulty construction, or because of the removal or move-
ment of some portion of the ground necessary for the
purpose of supporting such building, or portion
thereof, or some other cause, is likely to partially or
completely collapse, or some portion of the foundation
or underpinning is likely to fall or give way.
8. Whenever, for any reason whatsoever, the building or
structure, or any portion thereof, is unsafe for the pur-
pose for which it is used.
9. Whenever the exterior walls or other vertical structural
members list, lean or buckle to such an extent that a
plumb line passing through the center gravity does not
fall inside the middle third of the base.
10. Whenever the building or structure, exclusive of the
foundation, shows 33 percent or more of damage or
deterioration to the member or members, or 50 percent
of damage or deterioration or a nonsupporting enclos-
ing or outside wall or covering.
1 1 . Whenever the building or structure has been so dam-
aged by fire, wind, earthquake or flood or has become
so dilapidated or deteriorated as to become an attractive
nuisance to children who might play therein to their
danger, or as to afford a harbor for vagrants, criminals
or immoral persons or as to enable persons to resort
thereto for the purpose of committing nuisance or
unlawful or immoral acts.
12. Any building or structure which has been constructed,
or which now exists or is maintained in violation of any
specific requirements or prohibition, applicable to such
building or structure, of the building regulations of this
city, as set forth in Article 1 of Chapter IX of the Los
Angeles Municipal Code or of any provisions of Article
7 of Chapter V of the Los Angeles Municipal Code
relating to the prevention of fire, when so determined
and reported by the chief engineer, fire department, or
of Article 1 of Chsi^iexlll of ih& Los Angeles Municipal
Code relating to the protection of health when so deter-
mined and reported by the health officer, or of any law
or ordinance of this state or city relating to the condi-
tion, location or structure of buildings.
1 3 . Any building or structure which, whether or not erected
in accordance with all applicable laws and ordinances,
has in any nonsupporting part, member or portion, less
than 50 percent, or in any supporting member less than
66 percent, of the strength, fire-resisting qualities or
characteristics or weather-resisting qualities or charac-
teristics required by law or ordinance in the case of a
newly constructed building of like area, height and
occupancy in the same location.
14. Whenever a building or structure, used or intended to
be used for dwelling purposes, because of dilapidation,
decay, damage or faulty construction or arrangement,
or otherwise, is insanitary or unfit for human habitation
or is in a condition that is likely to cause sickness or dis-
ease, when so determined by the health officer, or is
likely to work injury to the health, safety or general
welfare of those living within.
1 5 . Whenever the building or structure, used or intended to
be used for dwelling purposes, has light, air and sanita-
tion facilities inadequate to protect the health, safety or
general welfare of persons living within.
16. Whenever any building or structure by reason of obso-
lescence, dilapidated condition, deterioration, damage,
electric wiring, gas connections, heating apparatus or
other cause, is in such condition as to be a fire hazard
and is so situated as to endanger life or other buildings
or property in the vicinity or provide a ready fuel sup-
ply to augment the spread and intensity of fire arising
from any cause.
17. Whenever any fire-protective construction or safety
device does not provide the degree of security to life
and property required by the Los Angeles Municipal
Code.
18. Whenever a building or structure is classified as a "sub-
standard building."
19. Whenever a building or structure has become vacant
and vandalized.
20. Whenever a building or structure has become a nui-
sance.
NUISANCE. Any premises, building, structure or portion
thereof containing numerous code violations or one or more
imminent life hazards.
SUBSTANDARD BUILDING. Any building, or portion
thereof, including any dwelling unit, guest room or suite of
rooms, or the premises on which the same is located, in which
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2008 CITY OF LOS ANGELES BUILDING CODE
ABATEMENT OF BUILDINGS, STRUCTURES, PREMISES AND PORTIONS THEREOF
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there exists any of the following listed conditions to an extent
that endangers the life, limb, health, property, safety or welfare
of the public or the occupants thereof:
8902.1 Inadequate sanitation. Inadequate sanitation shall
include, but not be limited to, the following:
1 . Lack of or improper water closet, lavatory, bathtub or
shower in a dwelling unit.
2. Lack of or improper water closets, lavatories and bath-
tubs or showers per number of guests in a hotel.
3. Lack of or improper kitchen sink.
4. Lack of hot and cold running water to plumbing fix-
tures in a hotel.
5. Lack of hot and cold running water to plumbing fix-
tures in a dwelling unit.
6. Lack of adequate heating.
7. Lack of or improper operation of required ventilating
equipment.
8. Lack of minimum amounts of natural light and ventila-
tion required by this Code.
9. Room and space dimensions less than required by this
Code.
10. Lack of required electrical lighting.
11. Dampness of habitable rooms.
12. Infestation of insects, vermin or rodents as determined
by the health officer.
13. General dilapidation or improper maintenance.
14. Lack of connection to required sewage disposal sys-
tem.
15. Lack of adequate garbage and rubbish storage and
removal facilities as determined by the health officer.
8902.2 Structural hazards. Structural hazards shall include,
but not be limited to, the following:
1. Deteriorated or inadequate foundations.
2. Defective or deteriorated flooring or floor supports.
3. Flooring or floor supports of insufficient size to carry
imposed loads with safety.
4. Members of walls, partitions or other vertical supports
that split, lean, list or buckle due to defective material
or deterioration.
5. Members of walls, partitions or other vertical supports
that are of insufficient size to carry imposed loads with
safety.
6. Members of ceilings, roofs, ceiling and roof supports or
other horizontal members which sag, split or buckle
due to defective material or deterioration.
■7. Members of ceilings, roofs, ceiling and roof supports,
or other horizontal members that are of insufficient size
to carry imposed loads with safety.
8. Fireplaces or chimneys which list, bulge or settle, due
to defective material or deterioration.
9. Fireplaces or chimneys which are of insufficient size or
strength to carry imposed loads with safety.
8902.3 Nuisance. Any nuisance as defined in this Code.
8902.4 Hazardous wiring. All wiring except that which con-
formed with all applicable laws in effect at the time of installa-
tion and which has been maintained in good condition and is
being used in a safe manner.
8902.5 Hazardous plumbing. All plumbing except that which
conformed with all applicable laws in effect at the time of
installation and which has been maintained in good condition
and which is free of cross-connections and siphonage between
fixtures.
8902.6 Hazardous mechanical equipment. All mechanical
equipment, including vents, except that which conformed with
all applicable laws in effect at the time of installation and which
has been maintained in good and safe condition.
8902.7 Faulty weather protection. Shall include, but not be
hmited to, the following:
1 . Deteriorated, crumbling or loose plaster.
2. Deteriorated or ineffective waterproofing of exterior
walls, roof, foundations or floors, including broken win-
dows or doors.
3. Defective or lack of weather protection for exterior wall
coverings, including lack of paint, or weathering due to
lack of paint or other approved protective covering.
4. Broken, rotted, split or buckled exterior wall coverings
or roof coverings.
8902.8 Fire hazard. Any building or portion thereof, device,
apparatus, equipment, combustible waste or vegetation which,
in the opinion of the Chief of the fire department or the Chief's
deputy, is in such a condition as to cause a fire or explosion or
provide a ready fuel to augment the spread and intensity of fire
or explosion arising from any cause.
8902.9 Faulty materials of construction. All materials of
construction except those which are specifically allowed or
approved by this Code and which have been adequately main-
tained in a good and safe condition.
8902.10 Hazardous or unsanitary premises. Those premises
on which an accumulation of weeds, vegetation, junk, dead
organic matter, debris, garbage, offal, rat harborages, stagnant
water, combustible materials and similar materials or condi-
tions constitute fire, health or safety hazards.
8902.11 Inadequate maintenance. Any building or portion
thereof which is determined to be an unsafe building in accor-
dance with the standards set forth in Section 8104.
8902.12 Inadequate exits. All buildings or portions thereof
not provided with adequate exit facilities as required by this
Code except those buildings or portions thereof whose exit
facilities conformed with all applicable laws at the time of their
construction and which have been adequately maintained and
increased in relation to any increase in occupant load, alteration
or addition, or any change in occupancy.
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2008 CITY OF LOS ANGELES BUILDING CODE
701
ABATEMENT OF BUILDINGS, STRUCTURES, PREMISES AND PORTIONS THEREOF
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When an unsafe condition exists through lack of, or
improper location of, exit, additional exits may be required to
be installed.
8902.13 Inadequate fire-protection or fflre-fighting equip-
ment. All buildings or portions thereof which are not provided
with the fire-resistive construction or fire-extinguishing sys-
tems or equipment required by this Code, except those build-
ings or portions thereof which conformed with all applicable
laws at the time of their construction and whose fire-resistive
integrity and fire-extinguishing systems or equipment have
been adequately maintained and improved in relation to any
increase in occupant load, alteration or addition, or any change
in occupancy.
8902.14 Illegal occupancy. All buildings or portions thereof
occupied for living, sleeping, cooking or dining purposes
which were not designed or intended to be used for such occu-
pancies.
SECTION 8903
ABATEMENT PROCEDURES
8903.1 Issuance of initial orders.
.1.1 Notification. Whenever the Department deter-
mines that any building, structure, or premises is within the
scope of this Chapter, the Department shall issue an order to
the owner as shown in the last equalized assessment roll.
The order shall specify the conditions which exist which
cause the building or premises to be within the scope of this
Chapter; whereupon the owner or owner's agent shall obtain
the necessary permits and abate the deficiencies in accor-
dance with Section 8903.1.2.
The order shall also require that the owner maintain the
vacant buildings or structures vacant until they are repaired
or demolished.
The requirements of this section shall also apply to any
building, structure, attached or detached appurtenances, or
premises as determined by the Department.
8903.1.2 Time for compliance. Within 30 days after notice
is given, the owner or the owner's agents shall obtain the
necessary permits and shall commence work to abate the
deficiencies. All necessary work shall be completed within
90 days after such notice is given.
.1.3 Order to vacate. If the necessary permits are not
obtained or the required work is not physically commenced
within 45 days after notice is given, or the identified defi-
cient conditions are not corrected within 90 days after notice
is given, the Department may order the owner to cause the
building to be vacated and may also institute enforcement
action as provided in this Chapter.
8903.1.4 Vacated buildings. No person shall reoccupy any
building within the scope of this Chapter which is found to
be vacant or is ordered vacated in accordance with Section
8903.1.3, until the deficiencies have been abated and a new
Certificate of Occupancy or clearance is obtained from the
Department. Any Certificate of Occupancy previously
issued for such building shall be void.
8903.1.5 Posting of buildings. Vacated buildings shall be
locked by the owner and otherwise secured against ingress.
If the Department has ordered that a building be vacated or
that the owner maintain a building vacant, then the Depart-
ment shall post thereon, in a conspicuous place near the
entrance, a warning placard or sign.
A warning placard or sign posted pursuant to this section
shall not be defaced, covered, removed or hidden from view
in any manner.
The placard or sign posted shall read substantially as fol-
lows:
VACATED BUILDING - DO NOT ENTER
BY ORDER OF THE
DEPARTMENT OF BUILDING AND SAFETY
CITY OF LOS ANGELES
It is a misdemeanor to enter or occupy or be present in this
building. It is a misdemeanor to remove, deface, cover, or
hide this placard. Section 8903 Los Angeles Municipal
Code.
8903.1.6 Recordation. At the time that the Department
serves the order described in Section 8903.1, the Depart-
ment shall file with the Office of the County Recorder a cer-
tificate stating that the subject building has been determined
to be either a hazardous building, a substandard residential
building, or a nuisance, that it has been ordered repaired or
demolished, and that the owner thereof has been so notified.
After the building has been repaired or demolished, the
Department shall file with the Office of the County
Recorder a certificate terminating the above recorded status
of the subject building.
8903.1.7 Manner of giving notice. The orders described in
this section shall be given in writing and may be given either
by personal delivery thereof to the person to be notified or
by deposit in the United States mail in a sealed envelope,
postage prepaid, addressed to such person to be notified at
the address as shown on the last equahzed assessment roll.
Service by mail shall be deemed to have been completed at
the time of deposit in the post office. The failure of any
owner or other person to receive such notice shall not affect
in any manner the validity of any of the proceedings taken
thereunder. Proof of giving any notice may be made by an
affidavit of any employee of the City which shows service in
conformity with this section.
8903.2 Violations-
orders.
-penalties for disregarding initial
8903.2.1 The,owner or other person having charge and con-
trol over any building or structure determined by the Depart-
ment to fall within the scope of this Chapter who shall fail to
comply with any order to repair, vacate and repair, or demol-
ish said building, structure or premises within the time lim-
its established in this Chapter shall be guilty of a
misdemeanor.
8903.2.2 The occupant or lessee in possession who fails to
comply with any order to vacate said building in accordance
with any order given as provided for in this Chapter shall be
guilty of a misdemeanor.
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2008 CITY OF LOS ANGELES BUBLDING CODE
ABATEMENT OF BUILDINGS, STRUCTURES, PREMISES AND PORTIONS THEREOF
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5.2.3 Any person who removes any notice or order
posted as required in this Chapter shall be guilty of a misde-
meanor.
8903.2.4 No person shall enter, occupy or be present in a
building which has been posted by the Department pursuant
to this section. Any person who enters, occupies or is pres-
ent in a buildjing which has been posted by the Department
pursuant to this section shall be guilty of a misdemeanor.
This prohibition shall not apply to public officers or public
employees acting within the course and scope of their
employment or in the performance of their official duties, or
owners, persons acting with the consent of the building
owner, the owner's agent, or person in lawful possession.
Notwithstanding any other provision of the Los Angeles
Municipal Code to the contrary, a police officer with the Los
Angeles Police Department shall have the authority to enter
any building posted by the Department pursuant to this sec-
tion, and arrest anyone present in violation of this section.
\3 Enforcement — noncompliance with department
orders.
5.3.1 General. Whenever compliance with an order
issued pursuant to the provisions of this Chapter for vacated
or occupied buildings has not been accomplished within the
time set or any additional time as may have been granted
under the appellate provisions of this Chapter, the Depart-
ment may institute appropriate action to secure compliance
as provided by law for misdemeanor violation or may cause,
by whatever means the Department determines appropriate,
the correction of the deficiencies, whether the building is
vacated or occupied, or the vacation and demolition, includ-
ing but not limited to the monitoring and removal of asbes-
tos, of the building or structure.
8903.3.2 Determination of interested parties. When the
Department determines to cause the correction of deficien-
cies or the demolition of a building or structure, it shall
obtain a title report either from the Division of Real Estate,
Bureau of Engineering, Department of Public Works, City
of Los Angeles or by contracting with one or more private
title reporting agencies. Said title report shall list all persons
shown on the records of the County Recorder as having an
ownership interest or liens or encumbrances or other inter-
ests in the real property on which the building or structure is
located.
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,3 Notification — notice of intention. When the
Department determines that the owner shall correct the defi-
ciencies or shall demolish the building or structure, the
Department shall notify the owner as identified in the title
report and other persons listed in the title report as having an
interest in the real property.
The notice of intention shall describe the land and notify
the owner of the intention of the City of Los Angeles to
cause the correction of the deficiencies or the demolition of
the building or structure located on the land, and shall spec-
ify a date certain upon or after which the Department shall
solicit bids or execute a work order, and shall have the
authority to advise that any time thereafter the Department
may execute an agreement to do such work. The Depart-
ment shall also notify the owner that the City will cause the
cost of such repair or demolition plus an amount equal to 40
percent of such cost, but not less than $100.00, to cover the
cost of the City administering the contract and supervising
the required work, to be made a lien against real property on
which the building or structure is located. In the event that a
contractor offers to pay the City to demolish a building in
order to obtain the salvage material, the City's administra-
tive charge shall be 40 percent of the amount paid by the
contractor, but not less than $100.00. Finally, the notice
shall advise of the owner's right to a hearing.
The date for solicitation of bids or execution of the work
order shall not be sooner than 10 days following the mailing
of the notices by certified mail as described in Section
8903.3.4. The award of the contract for such repair or
removal may be given at any time following the receipt of
bids.
One or more "Annual Unit-price Contracts" may be
awarded by the Department for the demolition of "privately
owned, readily accessible one and two-story wood-frame
structures on level lots." In the event one or more such con-
tracts have been executed which are applicable to the build-
ing which is to be removed, the notice shall advise that the
work shall be pursuant to such contract, and that following a
date certain, not less than 10 days following the mailing of
notice by certified mail, the City pursuant to such contract
shall have the authority to order the contractor to perform
the work at the prices specified in said "Unit-price Con-
tract." For the purposes of this subsection an "Annual
Unit-price Contract" shall mean a 12-month contract
awarded by the Department after competitive bidding based
on both stipulated prices and price per square foot of build-
ing area for the demolition and removal of buildings, struc-
tures and accompanying items on certain properties when
and as dire;cted by the Department by means of a work order.
No work order shall be executed except in conjunction with
the necessary contract or contracts.
The Department shall have the authority to award con-
tracts for the demolition of all other types of buildings or
structures by soliciting competitive bids. The General Man-
ager shall have the authority to establish procedures and
deadlines for soliciting competitive bids from any interested
contractors. In addition, the General Manager shall have the
authority to establish procedures for the prequalification of
contractors in a manner consistent with the requirements of
Section 386 of the Charter and subject to the approval of the
City Attorney.
8903.3.4 Method of notification. The notice required by
this section shall be sent to each required person by certified
mail, postage prepaid, return receipt requested, at the
address or addresses of such persons as it appears on the last
equalized assessment roll of the County or as known to the
City Clerk. If for any reason the certified letter is returned,
whether undeliverable or refused, another copy of the letter
shall be sent by first-class mail, postage prepaid.
Further, a copy of any order or notice issued under this
section shall be posted in a conspicuous place upon the
building or structure involved.
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2008 CITY OF LOS ANGELES BUILDING CODE
703
ABATEMENT OF BUBLDINGS, STRUCTURES, PREMISES AND PORTIONS THEREOF
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The failure of any owner or other person to receive such
notice shall not affect in any manner the validity of any pro-
ceedings taken thereunder.
§3.5 Affidavit off service. The employee of the Depart-
ment, upon giving notice as provided in this section, shall
file an affidavit thereof certifying to the date and manner in
which such notice was given. Any receipt card which may
have been returned to the employee in acknowledgment of
the receipt of such notice by certified mail shall also be filed
with the affidavit.
89®3.4 Owmer's loss off rights.
h Whenever tlie Department has under-
taken action to correct deficiencies, secure or demolish any
building, structure or portion thereof under the provisions of
this Chapter upon failure of the owner or person in apparent
charge or control of the property to comply with an order
therefor, and has caused the solicitation of bids or executed a
work order to accomplish such work, the owner or person in
apparent charge or control of the property shall be deemed
to have forfeited all further rights and privileges to do such
work and is thereafter prohibited from doing any such work,
except as the Department may otherwise allow.
8903.4.2 Pemalty ffor performing work prior to contract
avyarding. In the event that the owner or other person hav-
ing charge or control of such building or structure proceeds
to perform the corrective work or demolish said building or
structure, with or without the permission of the Department
or Board of Building and Safety Commissioners, after bids
have been solicited or a work order executed, but prior to the
award of the contract or the acceptance of the work order by
the contractor, a charge shall be imposed upon such person
as partial reimbursement to the City for any expenses
incurred by it in the proceeding. Such charge shall be in the
amount of 20 percent of the lowest bid for the demolition or
repair contract or of the work order charge, whichever
applies, but in no event less than the sum of $75.00.
§.4.3 Pemalty for performing work after contract is
awarded. If the owner or other person having charge or
control of the building or structure proceeds to perform the
corrective work or demolish the building or structure after
the award of the demolition or repair contract or after the
acceptance of the work order by the contractor, but before
the contractor has commenced performance, a charge shall
be imposed upon such person in an amount which shall be
the sum of a charge computed as in Section 8903.4.2, plus
the amount of the contractor's claim filed with the City
Clerk and approved by the Department pursuant to the pro-
visions of Section 8903.5.
8903.5 Cancellation of contract or work order.
3.1 General. If, for any reason, the Department
wishes to cancel a demolition or repair contract after it has
been awarded or a work order after it has been executed and
accepted, it may do so by written notification delivered to
the contractor any time prior to the commencement of the
work. When the Department determines that expediency so
requires, an oral notice of cancellation may be given, imme-
diately followed by its confirmation in writing. Upon
receipt of such oral or written notification the contractor
shall take no further action toward demolition or repair of
the building or structure.
8903.5.2 Compensation of contractor - cancellation of
contract or work order. Upon cancellation of a demolition
or repair contract by the Department, the contractor may
submit a claim to the City Clerk in an amount up to 25 per-
cent of the contract price, but not to exceed the sum of
$1,000.00, payment of which contractor shall accept as
compensation for all real and anticipated expenses and prof-
its.
Upon cancellation of a work order by the Department, the
contractor may submit a claim to the City Clerk up to the
amount of $200.00, payment of which contj-actor shall
accept as compensation for all real and anticipated expenses
and profits.
8903.5.3 Source of contractor reimbursement funds.
Claims submitted pursuant to Section 8903.5.2 and to the
extent approved by the Department shall be paid by the
Department out of the Repair and Demolition Fund. Where
the amount of the claim has been made a charge against the
owner or other party of interest pursuant to Section
8903.4.3, or where the demolition or repair contract or work
order was canceled by the Department at the request of the
owner or other party of interest, such party shall reimburse
the City for the amount of the claim filed with the City Clerk
and approved by the Department or paid from the repair and
demolition fund.
8903.6 Failure to pay charges. Should the owner or other
party of interest fail to pay, within 30 days after billing thereof,
any charge imposed upon such party pursuant to Sections
8903.5.2 or 8903.5.3, the Department shall transmit any
unpaid claim to the Office of the City Attorney for collection
and/or appropriate legal remedy as determined by the Office of
the City Attorney.
8903.7 Appeals and hearings.
8903.7.1 Appeals. Upon written application by an inter-
ested party within 30 days from the service of the initial
order as provided for in Section 8903.1, for good cause
shown and where no imminent risk of life or property is
present, the Department or the Board, in case an appeal is
made to it pursuant to Section 98.403.2 of the Los Angeles
Municipal Code, may grant a reasonable extension of time,
not to exceed 120 days after expiration of the 30-day period
provided for in the initial order, within which the work
required must be commenced.
Nothing in this subdivision precludes the Board from
establishing a policy of granting less than the maximum
time to comply with Department orders.
,2 Hearings.
A. Upon the issuance of a Notice of Intention, as pro-
vided for in Section 8903.3, any owner or paity of inter-
est may appeal in writing to the Board for a hearing to
determine the condition of the property, whether it falls
within the scope of this Chapter; whether it should be
repaired or demolished and how much time should be
given to complete the required work. The request for the
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704
2008 CITY OF LOS ANGELES BUILDBNG CODE
ABATEMENT OF BUILDINGS, STRUCTURES, PREMISES AND PORTIONS THEREOF
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hearing shall be made prior to the date set to solicit bids
or execute a work order as specified in the Notice of
Intention. A request after such date may not be accepted
for processing unless it is submitted prior to the Depart-
ment's awarding a contract or issuing a work order and it
is authorized by the Board. Failure of the owner or any
party of interest in the property to request a hearing
within the specified time or failure to pay the required fil-
ing fees shall be deemed a waiver of request for such a
hearing.
B. At the hearing the Department shall submit for the
record evidence to show whether or not the building or
structure falls within the scope of this Chapter. The evi-
dence shall consist of, but need not be limited to, the
inspection report originally issued by the Department
pursuant to Section 8903.1, recent pictures and testi-
mony by a representative of the Department. The owner
or any party of interest shall have the opportunity prior
to the hearing to examine the evidence to be submitted
by the Department. The owner, the owner's representa-
tive or counsel, or a party of interest should be present at
the hearing and will be given the opportunity to present
any relevant evidence or witnesses, cross-examine any
Department witnesses and ask questions or make com-
ments concerning the Department's evidence and testi-
mony. Failure of the owner or the owner's
representative to appear at the hearing after receiving
notice of the hearing shall be deemed a waiver of hear-
ing rights.
C. At the conclusion of the hearing, the Board shall make
findings and determine whether the building falls within
the scope of this Chapter and whether the building or
structure should be repaired or demolished and how
much time, if any, should be given for compliance with
the Department's order.
8903.7.3 Time limits for vacant buildings. Any appeal or
request for hearing to the Board for an extension of time to
repair or demolish a vacant privately owned building shall
be decided by the Board no later than 30 days after the hear-
ing thereon and may be granted only on the condition that
such repairs be completed within a maximum period of 180
days after the date of the Board's first action to grant an
extension of time and on the further condition that no addi-
tional time will be granted.
8903.7.4 Notification. Only those persons who request a
hearing need to be notified of the date and time of the hear-
ing. Notification shall be made by certified mail, postage
prepaid, return receipt requested, to the address as shown on
the hearing request application. The employee of the
Department, upon giving notice as provided in the subsec-
tion, shall file an affidavit thereof certifying to the date and
manner in which such notice was given. Any receipt card
that may have been returned to the employee in acknowl-
edgment of the receipt of such notice by certified mail shall
also be filed with the affidavit.
SECTION 8904
SPECIAL PROVISIONS FOR VACANT
PROPERTY GRAFFITI REMOVAL
8904.1 Duties of the owner of vacant property. It shall be
unlawful for the owner or person in control to permit the accu-
mulation of trash, debris, vehicle parts, rubbish, excessive veg-
etation or other similar nuisance conditions on a parcel or in
and around any building or structure located on a parcel. The
Department may order the fencing of such a parcel in the man-
ner described below.
It shall be unlawful for the owner or person in control of a
parcel of land, to allow to exist a vacant building or structure
which is open to unauthorized entry on that land. The entire
building or structure shall be securely maintained. The owner
or person in control of a vacant building, structure, or lot which
is open to unauthorized entry shall secure all openings, accessi-
ble for entry from the exterior of the building or structure, and
where appropriate, the entire lot itself, with one of the follow-
ing methods:
1. Minimum V4-inch exterior grade plywood. The ply-
wood shall have a positive connection to the building or
structure using minimum 72-inch (13 mm) bolts which
shall not be removable from the outside.
2. Minimum 16-gauge steel mesh attached to a mini-
mum one inch by Vg-inch angle iron frame. The frame
shall have a positive connection to the building or struc-
ture using minimum Vj-inch (13 mm) bolts which shall
not be removable from the outside.
3. Other means of barricading as directed or approved
by the Department including wrought iron fencing of
the lot. The Department may, working in cooperation
with the police department, develop standards for alter-
native fencing.
Unless directed otherwise by the Department, the owner or
person in control also shall erect a ten foot high, unobstructed,
chainlink fence complete with lockable gates. The fence, once
constructed, shall become the property of the owner of the
property upon which it is constructed and, all structures on the
property, including the fence shall be maintained in good
repair. In the event that the fence or other barriers cannot be
maintained in good repair, the Department may order an alter-
native method of barricading. The property so fenced shall be
conspicuously posted with a "No Trespassing" sign pursuant to
Section 41.24 of this Code.
It shall also be unlawful for the owner or person in control to
allow to exist any graffiti on a building or fence when that graf-
fiti, as defined in Section 49.84 of this Code, is visible from a
public street or alley. It shall also be unlawful if the owner or
person in control refuses to consent to the removal of the graf-
fiti by the City after being notified by the Department that the
City intends to remove the graffiti.
Owners, whose property displays graffiti, shall completely
remove the graffiti by washing, sandblasting or chemical treat-
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2008 CDTY OF LOS ANGELES BUILDING CODE
705
ABATEMENT OF BUILDINGS, STRUCTURES, PREMISES AND PORTIONS THEREOF
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ment or shall completely and uniformly cover or otherwise
obscure the graffiti with paint or other approved materials.
It is unlawful to maintain a swimming pool in violation of
Sections 6407 and 6405.16 of this Code. The 10-foot (3048
mm) high chainlink fence described above may be used to
comply with Section 6407 of this Code. The swimming pool
water shall be removed if the property is vacant.
8904.1.1 Procedure for securing vacant property and
removing graffiti — notification. The City Council finds
that the following conditions constitute a public nuisance:
the maintenance of vacant buildings or structures open to
unauthorized entry; the storage and accumulation of trash,
debris, vehicle parts or other items prohibited under Section
8904 of the this Code; and the maintenance of vacant or
occupied property with graffiti visible from a public street
or alley as described by Section 8904 of this Code.
If the property owner or person in control consents to the
removal of the graffiti, the City may enter upon the property
and remove such graffiti.
If the owner or person in control refuses to remove the
graffiti, or if any of the public nuisance conditions
above-described exist, then the Department of Building and
Safety may issue an order by certified mail, return receipt
requested, or may deposit an order in the United States mail
in a sealed envelope, postage prepaid, to the owner as shown
on the last equalized assessment roll to abate these condi-
tions. A copy of the order shall also be posted on the subject
property. The order may give no more than ten days from the
date the notice was mailed to perform the work.
However, if the order is served by way of personal ser-
vice, the order may give no more than 5 days from the date
the order was served to perform the work.
f the city. In the event the nuisance,
including graffiti, is not removed or otherwise eliminated or
abated by the date specified in the notice, the City, or its con-
tractor, may enter upon the parcel and remove or eliminate
the nuisance. Abatement may be accomplished by contract
or work order and may be performed by a private contractor
submitting a competitive sealed bid, a public entity per-
forming under a Memorandum of Understanding or by
means of an Annual Awarded Contract.
For the purposes of this section, an Annual Awarded Con-
tract shall mean one or more 12 -month contracts awarded
by the Department after competitive bidding. The contracts
may be based upon both stipulated prices and unit cost for
the fencing of vacant or vacated property; for removal of
graffiti visible from a public street or alley; for draining
swimming pools; for the securing of vacant buildings open
to unauthorized entry; for the removal of debris, rubbish,
excessive vegetation, weed abatement or similar nuisance
conditions on property containing a vacant building or
vacant lots, when and as directed by the Department by
means of a work order. No work order shall be executed
except in conjunction with the necessary contract or con-
tracts.
If abatement is performed by a City department other
than the Department of Building and Safety, that depart-
ment shall bill the owner for the cost of removal, or other
elimination or abatement of the nuisance, including admin-
istrative costs. An itemized written report showing the date
and cost of abatement work done by the City or its contrac-
tor shall be submitted to the Department. Payment for the
cost of abatement and recovery of the cost from the property
owner shall be pursuant to Section 8906 of this Code.
If the building again becomes open to unauthorized entry,
or graffiti is again visible from a public street or alley, or the
building's premises or vacant parcel again contain debris,
rubbish, excessive vegetation or other similar nuisance con-
ditions, the Department may, upon 3 days notice to the
owner, execute a contract or work order to have the required
work performed by one of the methods provided by this sec-
tion. The cost of performing the work may be paid from the
Repair and Demolition Fund as established in Section 8906
of this Code. Further, the provisions of Sections 8903.4,
8903.5 and 8903.6 shall apply to this section.
The above abatement procedures are in addition to any
other remedy the Department may choose to pursue to elim-
inate the nuisance conditions.
This section may also be used to abate graffiti, as defined
in Section 49.84 of the Los Angeles Municipal Code,
observable from the public street.
If at the time of removal of the graffiti the owner or occu-
pants object, then the City will immediately obtain the nec-
essary consent, warrants, or court order prior to completion
of the graffiti removal. This section should not be adminis-
tered in any way that would violate the constitutional rights
of any person.
8904.2 Abatement of vacant buildings or structures that
are open to unauthorized entry and fire damaged or repeat-
edly used for illegal purposes,
8904.2.1 Any vacant buildings open to unauthorized entry,
which become fire damaged or used repeatedly by vagrants
and gang members or for other illegal purposes without the
owner's permission, constitute a public nuisance. The expe-
ditious repair or demolition of such vacant buildings and
attached or detached appurtenances is essential in order to
eliminate fire hazards, and public nuisance conditions
which adversely affect the public safety and have a blighting
effect on the neighborhood. It is the purpose of this section
to establish a fair and expeditious procedure which may be
used in connection with those buildings and attached or
detached appurtenances.
8904.2.2 Procedures. The Department may declare a
vacant building to be a public nuisance building under the
following circumstances:
1. The vacant building has been secured pursuant to
Section 8904.1;
2. It has subsequently become open to unauthorized
entry; and
3. It has become fire damaged or is used repeatedly
without the owner's permission by vagnmts, crimi-
nals, or gangs or for other illegal purposes.
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706
2008 CITY OF LOS ANGELES BUILDING CODE
ABATEMENT OF BUILDINGS, STRUCTURES, PREMISES AND PORTIONS THEREOF
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If the Department determines that a vacant building is a
pubHc nuisance building as defined in this section, then the
Department may proceed to abate the public nuisance build-
ing utilizing the procedures set forth in Sections 8907.2,
8907.3 and 8907.4 of this Code. The cost of any work done
by the City or its contractor to abate the nuisance may be
collected from the property owner in accordance with the
procedures set forth in Section 8906.
A copy of any order issued pursuant to this section shall
be provided to the fire department and police department.
8904.3 Inspection fee for periodic inspection of property
and buildings. Whenever the Department determines after
notice and hearing that a property or building requires a
monthly inspection in order to abate a public nuisance and
encourage future maintenance in compliance with applicable
codes, the Department may inspect monthly and assess fees
pursuant to. Section 98.0412 of this Code. These fees shall be
imposed annually when the nuisance condition is abated by the
City pursuant to this Chapter but not more than once during any
12-month period.
The notice of hearing and intent to impose the annual fee
shall be mailed to the owner as listed on the last equalized
assessment roll or supplemental roll. The matter shall be sched-
uled for hearing before the Board of Building and Safety Com-
missioners on the date specified on the notice. The Board shall
determine whether the conditions and previous record of pub-
lic nuisance conditions and failure to comply with the Code
justify the imposition of the annual fee and monthly inspection.
The monthly inspection may be accomplished by contract or
work order and may be performed by a private contractor sub-
mitting a sealed bid or by means of an Annual Awarded Moni-
toring Contract. An Annual Awarded Monitoring Contract
shall mean one or more 12-month contracts awarded by the
Department after competitive bidding. Payment for the cost of
monthly inspections shall be made from the Repair and Demo-
lition Fund. Any payments received as a result of the annual fee
imposed pursuant to this subsection shall be deposited into the
Repair and Dernolition Fund. The property owner's failure to
pay this fee may result in a lien against the property pursuant to
Sections 8906.2 of this Code.
SECTION 8905
SPECIAL PROVISIONS FOR VACATING,
BARRICADING, REMOVING OR DEMOLISHING
BUILDINGS OR STRUCTURES WITHOUT NOTICE
8905.1 Notwithstanding anything to the contrary in this sec-
tion, whenever the Department determines that any building,
structure, premises or portion thereof falling within the scope
of this Chapter is a present, imminent, extreme and immediate
hazard or danger to life or limb, health or safety, so as to neces-
sitate the immediate elimination thereof without prior notice to
the owner, the Department may, without an order or notice of
any kind whatsoever and without a hearing, cause the building,
structure or premises or any portion thereof to be immediately
vacated, barricaded, removed or demolished by such means as
the Department may deem advisable, including the use of the
Department's annual awarded demolition contractor.
8905.2 Buildings or structures which are vacated pursuant to
this section shall be locked and otherwise secured against
ingress and the Department shall post thereon, in a conspicuous
place near the entrance, a placard warning the building is
unsafe.
Any warning placard posted pursuant to this section shall not
be defaced, covered, removed, or hidden from view in any
manner.
8905.3 The Department may cause the building, structure or
premises or any portion of the building, structure or premises to
be immediately barricaded, removed or demolished. The barri-
cading, removal or demolition, including any monitoring or
removal of asbestos, may be accomplished by any City depart-
ment with the forces to perform the work, upon receipt of a
request from the Department, or by any forces under contract to
the City. Where the work is accomphshed either by contract or
City forces, the cost shall be paid from the Repair and Demoli-
tion Fund as established in Section 8906.
All costs incurred pursuant to this section shall be a personal
obligation against the property owner upon which the particu-
lar building or structure or any portion is located, recoverable
by the City in an action before any court of competent jurisdic-
tion. These costs shall include an amount equal to 40 percent of
the cost to perform the actual work, but not less than the sum of
$100.00, to cover the City's costs for administering any con-
tract and supervising the work required. In addition to this per-
sonal obligation and all other remedies provided by law, the
City may collect any judgment, fee, cost, or charge, including
any permit fees, fines, late charges, or interest, incurred in rela-
tion to the provisions of this section as provided in Sections
7.35.1 through 7.35.8 of the Los Angeles Administrative Code.
8905.4 The administrative fee of 40 percent of the costs shall
not be included in the calculation of costs incurred for or aris-
ing out of any barricading, removal or demolition resulting
from an event or course of events that prompted a declaration of
a state of emergency, local emergency, war emergency or major
disaster by the Mayor, the Governor of the State, or by the Pres-
ident of the United States.
SECTION 8906
PAYMENT AND RECOVERY OF REPAIR AND
DEMOLITION FUNDS
8906.1 Repair and demolition fund.
8906.1.1 Established by City Council. The City Council
has set up a special revolving fund designated as the repair
and demolition fund. Payments shall be made out of said
fund upon the demand of the Department to defray the costs
and expenses which may be incurred by said Department in
causing the necessary work of repair, securing, cleaning or
demolition of buildings, structures and portions thereof or
premises which fall within the scope of this Chapter.
8906.1.2 Transfer of funds. The City Council may at any
time transfer to the repair and demolition fund, out of any
money in the General Fund of the City, sums as it may deem
necessary in order to ensure the performance of the work of
repair, securing, cleaning or demolition, and the sum so
transferred shall be deemed a loan to a special fund and shall
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2008 CITY OF LOS ANGELES BUILDING CODE
707
ABATEWiENT OF BUILDINGS, STRUCTURES, PREMISES AND PORTIONS THEREOF
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be repaid out of the proceeds of the collection of costs pro-
vided for in this Chapter. All funds collected under the pro-
ceedings provided for below, either upon voluntary
payments or as the result of the involuntary sale of the prop-
erty, shall be paid when collected to the City Treasurer, who
shall place the funds in the repair and demolition fund.
8906.1.3 Maximum amount in fund. At the close of each
fiscal year, with the exception of money deposited from the
Community Development Trust Fund in connection with
the Rental Housing Rehabilitation Program, all monies in
said repair and demolition fund in excess of $250,000.00,
over and above the amount of outstanding liabilities payable
out of such fund, shall be transferred to the salary account of
the Department of Building and Safety for use in building
conservation work.
8906.2 Collection olF repair and demolition costs. Whenever
the Department has caused the repair, securing, cleaning or
demolition of any building, structure, or portion of a building,
structure or any premises, all costs incurred under the provi-
sions of this Chapter shall be a personal obligation against the
property owner, recoverable by the City in an action before any
court of competent jurisdiction. These costs shall include an
amount equal to 40 percent of the cost to perform the actual
work, but not less than the sum of $100.00, to cover the City's
costs for administering any contract and supervising the work
required. In addition to this personal obligation and all other
remedies provided by law, the City may collect any judgment,
fee, cost, or charge, including any permit fees, fines, late
charges, or interest, incurred in relation to the provisions of this
section as provided in Sections 7.35.1 through 7.35.8 of the Los
Angeles Administrative Code .
SECTION 8907
ABATEMEMT OF PUBLIC NUISANCE CONDITIONS
RELATED TO A DECLARED LOCAL EMERGENCY
8907.1 Declaration of purpose. Both the expeditious cleanup
of the debris and the removal of irreparably damaged buildings
resulting from declared local emergencies are essential in order
to eliminate public nuisance conditions which may adversely
affect the public health, safety and welfare. It is the purpose of
this section to establish a fair and expeditious procedure which
may be utilized in connection with declared local emergencies
for the abatement of public nuisances, which includes hazard-
ous buildings and debris.
Accordingly, the Department is hereby authorized to issue
orders requiring property owners to abate public nuisances.
The Department is also authorized to cause the demolition of
hazardous buildings and to remove the debris, rubbish or other
dangerous or injurious materials; or to take other action as nec-
essary to abate public nuisance conditions, and to cause the
cost of the demolition, removal or abatement to become a spe-
cial lien against the property.
The terms "nuisance" and "hazardous buildings" are
defined in Section 8902. As used in this section, the term
"debris" includes burned or partially burned building materi-
als, members, or portions thereof, a:sh, damaged appliances,
broken concrete, loose bricks, glass, metal and downed trees.
This procedure is in addition to any other procedure that is
currently authorized for abatement of such public nuisances.
Notwithstanding any provision of this section, the Department
may at any time exercise its lawful authority to summarily and
immediately abate public nuisances pursuant to Section 8905.
8907.2 Notice. Whenever the Department discovers the exis-
tence of a public nuisance, including debris and hazardous
buildings, the Department may issue an order for the premises
upon which the nuisance is discovered to the person listed as
the owner of the premises, based on the last equalized assess-
ment roll or supplemental roll. A copy of the order shall be
posted in a conspicuous place on the parcel or premises, and a
copy shall also be mailed to the person listed as the owner based
on the last equalized assessment roll or supplemental roll. The
failure of any owner or other person to receive such notice shall
not affect in any manner the vahdity of any of the proceedings
taken thereunder. Proof of giving any notice may be made by an
affidavit of any employee of the City, which shows service in
conformity with this section. The order shall indicate:
1 . The street address, or the approximate street address if no
street address has been assigned, of the property on
which the nuisance exists;
2. That the condition on the premises as described in the
order constitutes a public nuisance;
3. That the owner or owner's agent is required to obtain all
necessary permits to abate the public nuisance within 10
days from the date of the order, and to commence and
complete all necessary work within 30 days from the
date of the order;
4. That the owner must appear at a hearing conducted by
the Board, at a time, date and location specified in the
order, which shall be at least 15 days from the date of the
order;
5. That upon any such appearance the owner will be given
the opportunity to present and to elicit testimony and
other evidence to show cause why the alleged nuisance
should not be abated by the owner or by the City using its
own forces or through contract;
6. That such appearance may be made by the submission of
written materials if they have been received by the City at
least three days prior to the scheduled hearing at the mail-
ing address specified in the order;
7. That if a public nuisance is found to exist on the property
and the owner fails to abate that nuisance, then the
Department has the authority to cause the demolition of
hazardous buildings and removal of debris, rubbish or
other dangerous or injurious materials as necessary to
abate public nuisance conditions; and
8. That the cost of abatement of the public nuisance by the
City may become a special lien against the premises.
8907.3 Pre-abatement hearing.
8907.3.1 The matter shall be scheduled for hearing before
the Board on the date and time specified in the order. The
Board shall proceed to determine whether the conditions
existing on the premises constitute a public nuisance.
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708
2008 CITY OF LOS ANGELES BUILDING CODE
ABATEMENT OF BUILDINGS, STRUCTURES, PREMISES AND PORTIONS THEREOF
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8907.3.2 The person notified to appear, or the actual owner
of the parcel or premises in the event the person notified is
not the owner, or any person representing the owner, who
attends the hearing, shall be given an opportunity to present
and to elicit testimony and any other evidence on whether a
public nuisance exists, and to show cause why the; alleged
nuisance conditions should not be abated by the owner or by
the City usiiig its own forces or through contract. The Board
shall proceed with the hearing whether or not such person is
in attendance. Written material shall be considered by the
Board if it is received three days prior to the scheduled hear-
ing.
8907.3.3 At the conclusion of the hearing, the Board shall
make a finding and determine whether the premises are a
public nuisance, and how much additional time, if any,
should be given to the owner for compliance with the
Department's order. Once the Board has acted, it shall have
no further jurisdiction over any matter relating to the abate-
ment of the nuisance conditions on the premises. Any future
determinations in this regard, including nuisance abatement
actions or requests for extensions of time, shall be within the
sole jurisdiction and discretion of the Superintendent of
Building and not appealable to the Board.
8907.3.4 The owner and any other person who appeared at
the scheduled hearing on behalf of the owner, either in per-
son or by the submission of written material, shall be noti-
fied in writing of the determination of the Board.
8907.4 Abatement. If the Board finds that a public nuisance
exists, and if the Department determines that permits were not
obtained, or that the nuisance was not removed or otherwise
abated by the dates specified in the order, then the City or its
contractor may enter upon the premises to demolish hazardous
buildings, monitor or remove asbestos, remove debris, rubbish
or other dangerous or injurious materials, and take other action
as necessary to abate the nuisance. The work may be accom-
plished by any City department with the forces to perform the
work, upon receipt of a request from the Department, or by any
forces under contract to the City. Further, if the work qualifies,
then it may be done as part of the City-sponsored demolition
and debris removal program approved in concept by the City
Council on May 22, 1992.
Where the work is accomplished by other than City forces,
the cost may be paid from the Repair and Demolition Fund as
established in Section 8906. All costs incurred pursuant to this
section shall be a personal obligation against the owner of the
property upon which the nuisance is located, recoverable by
the City in an action before any court of competent jurisdiction.
These costs shall include an amount equal to 40 percent of the
cost to perform the actual work, but not less than the sum of
$100.00, to cover the City's costs for administering any con-
tract and supervising the work required, unless the work is
necessitated by an event or course of events that prompts the
declaration of a local emergency by the Mayor. In addition to
this personal obligation and all other remedies provided by law,
the City may collect any judgment, fee, cost, or charge, includ-
ing any permit fees, fines, late charges, or interest, incurred in
relation to the provisions of this section as provided in Sections
7.35.1 through 7.35.8 Los Angeles Administrative Code.
SECTION 8908
SPECIAL PROVISIONS FOR THE REPAIR
OF WELDED STEEL MOMENT FRAME
BUILDINGS LOCATED IN HIGH EARTHQUAKE
DAMAGED AREAS
8908.1 Welded steel moment frame buildings located in high
earthquake damaged areas experienced damage in the beam to
colunm momerit connection as a result of the earthquake of
January 17, 1994, and its aftershocks. Except as provided by
this section, it is unlawful for any person, firm, or corporation
to maintain a building with damaged welded moment connec-
tions. The purpose of this section is to provide a practicable
method, in addition to any other remedy available by law,
whereby earthquake damaged welded steel frame moment
buildings may be repaired.
8908.2 If the Department determines that a commercial build-
ing is a welded steel moment frame building located in a high
earthquake damaged area, then the Department may issue an
order to the owner, as shown on the last equalized assessment
roll, to repair all damaged welded connections.
Within 180 days of mailing of the order, the building owner
shall submit an inspection report to the Department indicating
the number of damaged welded connections and proposed
repair procedures. This inspection report shall be prepared
under the direction of a structural engineer licensed by the State
of California and shall include the results of any ultrasonic tests
or the results of other approved methods of testing of connec-
tions. The inspection report shall be approved when it is deter-
mined to be in keeping with general standards established by
the Department. Permits shall be obtained and repairs to the
damaged connections shall commence within 90 days of the
Department's approval of the submitted report. Repairs shall
be completed within 2 years of the date of the permit.
8908.3 For purposes of this section, the following areas are
high earthquake damaged areas:
That area bounded by, MulhoUand Drive, Beverly Glen Bou-
levard, Pico Boulevard, Overland Avenue, Venice Boulevard,
Centinela Avenue, Montana Avenue, 26th Street, Sunset Bou-
levard, and Mandeville Canyon Road.
That area of the City which is North of MulhoUand Drive,
and bounded by Universal City, Burbank, Glendale, Los
Angeles County, and Ventura County.
The City Council, by resolution, may extend the boundaries
of these earthquake damaged areas if it finds that damage has
occurred to welded steel moment frame buildings outside the
boundaries described above. The Department may issue an
order for any welded steel moment frame building outside of
the high earthquake damaged areas if the Department deter-
mines that the building has experienced earthquake damage.
8908.4 If an owner fails to comply with an order issued pursu-
ant to this section within the time set forth in the order or such
additional time as may be granted by the Department, then the
Department may secure compliance utilizing the procedures
set forth in Section 8903. However, if the Department utihzes
Section 8903, then the order described in Section 8903.1.1
shall indicate that the building is within the scope of Chapter 89
because of the owner's failure to comply with the requirements
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ABATEWiENT OF BUILDINGS, STRUCTURES, PREMISES AND PORTIONS THEREOF
L^ of this section. Further the time for compliance set forth in Sec-
LA tion 8903.1.2 may be reduced to 10 days, and the order to
L^ vacate described in Section 8903.1.3 may be issued whenever
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CHAPTER 91
EARTHQUAKE HAZARD REDUCTION IN EXISTING TILT-UP
CONCRETE WALL BUILDINGS
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SECTION 9101
PURPOSE
The purpose of this Chapter is to promote public safety and
welfare by reducing the risk of death or injury that may result
from the effects of earthquakes on tilt-up concrete wall build-
ings designed under the building codes in effect prior to Janu-
ary 1, 1976. Siich buildings have been categorized, leased on
past earthquakes, as being potentially hazardous and prone to
significant damage, including possible collapse, in a moderate
to major earthquake.
The provisions of this Chapter are minimum standards for
structural seismic resistance established primarily to reduce
the risk of life loss or injury on both subject and adjacent prop-
erties and will not necessarily prevent loss of life or injury or
prevent earthquake damage to an existing building which com-
plies with these standards. The requirement for compliance
with these standards does not preclude the utilization, at the
building owner's option, of more extensive strengthening
method that might further prevent or limit loss of life or injury
or building damage. This Chapter shall not require existing
electrical, plumbing, mechanical or fire-safety systems to be
altered unless they constitute a hazard to life or property.
This Chapter provides systematic procedures and standards
for identification and classification of tilt-up concrete wall
building based on the current use of the building. Priorities,
time periods, and standards are also established under which
these buildings are required to be structurally analyzed and
strengthened for seismic resistance. Where the analysis deter-
mines structural deficiencies, this Chapter requires the build-
ing to be strengthened or demolished.
SECTION 9102
SCOPE
The provisions of this Chapter shall apply to all buildings
designed under building codes in effect prior to January 1,
1976, which on the effective date of this Chapter have tilt-up
concrete walls as defined herein.
Buildings within the scope of the Chapter may not be added
to or structurally altered or remodeled without first complying
with the provisions of this Chapter unless the building official
determines that the alteration is minor in nature.
Seismic strengthening in place prior to the effective date of
this ordinance shall be evaluated according to the provisions of
this Chapter and modified to comply if deficient.
SECTION 9103
DEFINITIONS
For purposes of this Chapter, the applicable definitions in Sec-
tions 1602, 1902, 2302 and Section 11.2 of ASCE 7, and the
following shall apply:
COMMENCED CONSTRUCTION. Construcdon pursuant
to a valid building permit has progressed to the point that one of
the called inspections as required by the Department has been
made and the work for which the inspection has been called has
been judged by the Department to be substantial and has been
approved by the Department.
DEPARTMENT. The Department of Building and Safety.
ESSENTIAL BUILDING. For purposes of this Chapter, any
building housing a hospital or other medical facility having
surgery or emergency treatment areas, fire or police stations,
municipal government disaster operations, and communica-
tion centers.
HISTORICAL BUILDING. Any building designated or cur-
rently in the process of being designated as an historical build-
ing by an appropriate federal, state or city jurisdiction.
TILT-UP CONCRETE WALL. A form of precast concrete
panel construction either cast in the horizontal position at the
site and after curing, Ufted and moved into place in a vertical
position, or cast off-site in a fabricator's shop.
SECTION 9104
RATING CLASSIFICATIONS
The rating classificafion as exhibited in Table No. 91 -A is
hereby established and each building within the scope of this
Chapter shall be placed in one rating classification by the
Department. The total occupant load as determined by Section
1004.1 for the entire building plus the occupant load of any
adjacent building, which interconnects with the subject build-
ing or uses the subject building for exiting purposes, shall be
used to deterniine the rating classification.
SECTION 9105
GENERAL REQUIREMENTS
The owner of each building within the scope of the Chapter
shall cause an investigation of the existing construction and a
structural analysis to be made of the building by a civil or struc-
tural engineer or architect licensed by the State of California,
and if the building does not meet the minimum standards speci-
fied in this Chapter, the owner shall cause it to be structurally
altered to conform to such standards or cause the building to be
demolished.
The owner of a building within the scope of this Chapter
shall comply with the requirements set forth above by submit-
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ting to the Department for review within 275 days after the ser-
vice of the order the following:
1. A structural analysis, subject to approval by the Depart-
ment within the 275 day time period, which demon-
strates that the building meets the minimum
requirements of this Chapter, or
2. A structural analysis and plans for the proposed struc-
tural alterations of the building necessary to comply with
the minimum requirements of this Chapter, or
3 . Plans for the demolition of building. After plans are sub-
mitted and approved by the Department, the owner shall
obtain a building permit, commence and complete the
required construction or demolition within the time lim-
its set forth in Table No. 91-B. These time limits shall
begin to run from the date the order is served in accor-
dance with Sections 9106.1 and 9106.2 of this Code.
Vacating a building shall not be deemed as complying
with the requirements of this Chapter.
SECTiOM 9106
ADMIN8STRATI0N
9106.1 Service of order. When the Department determines that
a building is within the scope of this Chapter, the owner shall
comply with Section 9105 of this Code. If the owner does not
comply, the Department shall issue an order as provided in Sec-
tion 9106.2 to the owner of each building with the minimum
time periods for service of such orders set forth in Table No.
91-C. The minimum time period for the service of such orders
shall be measured from the effective date of this Chapter.
}.2 Coetemts of order. The order shall be in writing and may
be given either by personal deUvery thereof to the owner or by
deposit in the United States mail in a sealed envelope, postage
prepaid, addressed to the owner as shown on the last equalized
assessment roll. Service by mail shall be deemed to have been
completed at the time of deposit in the post office. The failure of
any owner to receive such notice shall not affect in any manner
the validity of any of the proceedings taken thereunder. Proof of
giving any notice may be made by an affidavit of any employee
of the City which shows such service in conformity with this sec-
tion. Board action. Department administrative action, other cor-
respondence between the City and the building owner or
building owner's representative, or other evidence of knowledge
of notification shall also be deemed as proof of giving notice.
The order shall specify that the building has been determined
by the Department to be within the scope of this Chapter and,
therefore, is required to meet the minimum seismic standards
of this Chapter. The order shall specify the rating classification
of the building and shall be accompanied by a copy of Section
9105, which sets forth the owner's alternatives and time limits
for compliance.
from order. The owner of the building may
appeal the Department's determination that the building is
within the scope of this Chapter to the Board of Building and
Safety Commissioners. Such appeal shall be filed with the
Board within 60 days of the service date of the order described
in Section 9106.2. Such appeal shall be made in writing upon
appropriate forms provided therefor by the Department, and
the grounds thereof shall be stated clearly and concisely. Each
appeal shall be accompanied by a filing fee as set forth in Table
No. 4- A of Division 4 of Article 8 of Chapter IX of the Los
Angeles Municipal Code.
9106.4 Recordation. At the time that the Department serves
the aforementioned order, the Department shall file with the
Office of the County Recorder a certificate stating that the sub-
ject building is within the scope of this Chapter. The certificate
shall also state that the owner thereof has been ordered to struc-
turally analyze the building and to structurally alter or demol-
ish it when the Department determines the building is not in
compliance with this Chapter.
If the building is either demolished, found not to be within
the scope of this Chapter, or is structurally capable of resisting
minimum seismic forces required by this Chapter as a result of
structural alterations or an analysis, the Department shall file
with the Office of the County Recorder a certificate terminating
the status of the subject building as being classified within the
scope of this Chapter.
9106.5 Enforcement. If the owner of the subject building fails
to comply with any order issued by the Department pursuant to
this Chapter within any of the time limits set forth in Section
9105, or within any additional time limits as may have been
granted by the Board, the Department may order that the build-
ing be vacated and subsequently ordered to be demolished in
accordance with the provisions of Section 8903 of this Code.
The Superintendent of -Building shall have the authority to
grant two one-year extensions in cases of extreme hardship.
SECTION 9107
HISTORICAL BUILDINGS
Qualified historical buildings may utilize alternate building
standards or deviations from this Chapter to preserve their orig-
inal or restored architectural elements and features. See Sec-
tion 81 19 of this Code.
SECTION 9108
ANALYSIS AND DESIGN
For the purpose of this section, the term "anchorage system(s)"
shall mean all structural elements, which supports the wall in
the lateral direction, including wall anchorage and continuity
tie (cross-tie) connectors in subdiaphragms and main dia-
phragms for retrofit and repairs.
9108.1 Wall panel anchorage. Concrete walls shall be
anchored to all floors and roofs which provide lateral support
for the wall. The anchorage shall provide a positive direct con-
nection between the wall and floor or roof construction capable
of resisting a horizontal force equal to 30 percent of the tribu-
tary wall weight for all buildings, and 45 percent of the tribu-
tary wall weight for essential buildings, or a minimum force of
250 pounds per linear foot of wall, whichever is greater. The
required anchorage shall be based on the tributary wall panel
assuming simple supports at floors and roof
Exception; Alternate design may be approved by the
Superintendent when justified by well established princi-
ples of mechanics.
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2008 CITY OF LOS ANGELES BUILDING CODE
EARTHQUAKE HAZARD REDUCTION IN EXISTING TILT-UP CONCRETE WALL BUILDINGS
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9108.2 Special requirements for wall anchors and continu-
ity ties. The steel elements of the wall anchorage systems and
continuity ties shall be designed by the allowable stress design
method using a load factor of 1 .7. The ^/^ stress increase permit-
ted by Section 12.4.3.3 of ASCE 7 shall not be permitted for
materials using allowable stress design methods.
The strength design specified in Section 1912, using a load
factor of 2.0 in lieu of 1.4 for earthquake loading, shall be used
for design of embedments in concrete.
Wall anchors shall be provided to resist out-of-plane forces,
independent of existing shear anchors.
Exception: Existing cast-in-place shear anchors may be
used as wall anchors if the tie element can be readily
attached to the anchors and if the engineer or architect can
establish tension values for the existing anchors through the
use of approved as-built plans or testing, and through analy-
sis showing that the bolts are capable of resisting the total
shear load while being acted upon by the maximum tension
force due to earthquake. Criteria for analysis and testing
shall be determined by the Superintendent of Building.
Expansion anchors are not allowed without special approval
of the Superintendent of Building. Attaching the edge of ply-
wood sheathing to steel ledgers is not considered as complying
with the positive anchoring requirements of the Code; and
attaching the edge of steel decks to steel ledgers is not consid-
ered as providing the positive anchorage of this Code unless
testing and/or analysis are performed, which establish shear
values for the attachment perpendicular to the edge of the deck.
i.3 Development of anchor loads into the diaphragm.
Development of anchor loads into roof and floor diaphragms
shall comply with Section 12. 11 of ASCE 7.
Exception: If continuously tied girders are present, then the
maximum spacing of the continuity ties is the greater of the
girder spacing or 24 feet (7315 mm).
In wood diaphragms, anchorage shall not be accomplished by
use of toe nails or nails subject to withdrawal, nor shall wood
ledgers, top plates or framing be used in cross-grain bending or
cross-grain tension. The continuous ties required by Section
12. 1 1 of ASCE 7 shall be in addition to the diaphragm sheathing.
Lengths of development of anchor loads in wood dia-
phragms shall be based on existing field nailing of the sheath-
ing unless existing edge nailing is positively identified on the
original construction plans or at the site.
At reentrant comers, continuity collectors may be required
for existing return walls not designed as shear walls, to develop
into the diaphragm a force equal to the lesser of the rocking or
shear capacity of the return wall, or the tributary shear, but not
exceeding the capacity of the diaphragm. Shear anchors for the
return wall shall be commensurate with the collector force. If a
truss or beam, other than rafters or purlins, is supported by the
return wall or by a column integral with the return wall, an
independent secondary column, is required to support the roof
or floor members whenever rocking or shear capacity of the
return wall is governing.
Seismic deflection shall be determined at the return walls, and
fins/canopies at entrances, to ensure deflection compatibility with
the diaphragm, by either seismically isolating the element or
attaching the element and integrating its load into the diaphragm.
9108.4 Anchorage at pilasters. Anchorage of pilasters shall
be designed for the tributary wall anchoring load per Section
9108.1 of this Code, considering the wall as a two-way slab.
The edge of the two-way slab shall be considered "fixed" when
there is continuity at pilasters, and considered "pinned" at roof
or floor levels. The pilasters or the walls immediately adjacent
to the pilasters shall be anchored directly to the roof framing
such that the existing vertical anchor bolts at the top of the
pilasters are by-passed without causing tension or shear failure
at the top of the pilasters.
Exception: If existing vertical anchor bolts at the top of the
pilasters are used for the anchorage, then additional exterior
confinement shall be provided.
The minimum anchorage at a floor or roof between the pilas-
ters shall be that specified in Section 9108. 1 of this Code.
9108.5 Symmetry. Symmetry of connectors in the anchorage
system is required. Eccentricity may be allowed when it can be
shown that all components of forces are positively resisted and
justified by calculations or tests.
9108.6 Minimum roof member size. Wood members used to
develop anchorage forces to the diaphragm must be at least 3x
for new construction and replacement. All such members must
be checked for gravity and earthquake as part of the wall
anchorage system. For existing buildings, the member check
shall be without the V3 stress increase per Section 9108.2.
9108.7 Combination of anchor types. To repair and retrofit
existing buildings, a combination of different anchor types of
different behavior or stiffness shall not be permitted. The
capacity of the new and existing connectors cannot be added.
9108.8 Prohibited anchors. Usage of connectors that were
bent and/or stretched from the intended use shall be prohibited.
9108.9 Crack and damage repairs, evaluation of existing
structural alterations. The engineer shall report any observed
structural conditions and structural damage that have imminent
life safety effects on the buildings and recommend repairs.
Evaluations and repairs shall be reviewed and approved by the
Department. The engineer shall also evaluate the effects of
alterations such as openings cut in existing wall panels without
a permit, that may present immediate life safety hazard and cor-
rect when necessary.
9108.10 Miscellaneous. Existing mezzanines relying on the
tilt-up walls for vertical and/or lateral support shall be
anchored to the walls for the tributary mezzanine load. Walls
depending on the mezzanine for lateral support shall be
anchored per Sections 9108.1, 9108.2 and 9108.3.
Exception: Existing mezzanines that have independent lat-
eral and vertical support need not be anchored to the walls.
Existing interior masonry or concrete walls not designed as
shear walls, that extend to the floor above or to the roof dia-
phragm shall also be anchored for out-of-plane forces per Sec-
tions 9108.1, 9108.2 and 9108.3 of this Code. In the in-plane
direction, the walls may be isolated or shall be developed into
the diaphragm for a lateral force equal to the lesser of the rock-
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ing or shear capacity of the wall, or the tributary shear but not
exceeding the diaphragm capacity.
ION 9109
= cons
All materials permitted by this Code, including their appropri-
ate allowable stresses and those existing configurations of
materials specified in Chapter 88, may be utilized to meet the
requirements of this Chapter.
ED 01
9110.1 GemeraL In addition to the seismic analysis required
elsewhere in this Chapter, the licensed engineer or architect
responsible for the seismic analysis of the building shall record
the information required by this section on the approved plans.
Imformatioini required. The plans shall accurately
reflect the results of the engineering investigation and design
and show all pertinent dimensions and sizes for plan review and
construction. The following shall be provided:
1 . Floor plans and roof plans shall show existing framing
construction, diaphragm construction, proposed wall
anchors, cross-ties and collectors. Existing nailing,
anchors, ties and collectors shall also be shown on the
plans if these are part of the design, and these structural
elements need to be verified in the field.
2. At elevations where there are alterations or damage,
details shall show roof and floor heights, dimensions of
openings, location and extent of existing damage, and
proposed repair.
3. Typical wall panel sections with panel thickness, height,
location of anchors shall be provided.
4. Details shall include existing and new anchors and the
method of development of anchor forces into the dia-
phragm framing; existing and/or new cross-ties; existing
and/or new or improved support of roof and floor girders
at pilasters or walls.
9110.3 Engineer's or architect's statememt.
The responsible engineer or architect shall state on the
approved plans, the following:
1. I am responsible for this building's seismic strengthen-
ing design in compliance with the minimum seismic
resistance standards of Chapter 91 of the Los Angeles
Building Code.
and when applicable:
2. The Registered Deputy Inspector, required as a condi-
tion of the use of structural design stresses requiring con-
tinuous inspection, will be responsible to me as required
by Section 1704 of the Los Angeles Building Code.
REQUIRED BUILDING MAINTENANCE
Every building within the scope of this Chapter which has been
analyzed to demonstrate compliance or structurally altered to
comply with the minimum earthquake standards in this Chapter
shall be maintained in conformity with the requirements of this
Chapter in effect at the time of such analysis or structural alter-
ation.
SECTION 9112
VaOLATIONS - PENALTIES FOR DISREGARDING
DEPARTMENT ORDERS
Notwithstanding any other provisions of this Code to the con-
trary, it shall be unlawful for any person, firm or corporation to
maintain, use or occupy any building within the scope of this
Chapter which does not meet the minimum earthquake stan-
dards specified in this Chapter.
Any person who violates or causes or permits another person to
violate this provision is guilty of a misdemeanor. Any person
includes an owner, lessor, sublessor, manager, or person in control
of a building subject to this Chapter. This term shall not include
any person who is merely a tenant or other individual occupying
any dweUing unit, efficiency dweUing unit, guest room or suite in
a building. The legal owner of a building is that person, firm, cor-
poration, partnership, or other entity whose name or title appears
on the record with the Los Angeles County Recorder's Office, as
well as aU successors or assignees of these persons.
Exception: This section shall not comply if alteration or repair
work has commenced in order to bring the building into com-
pliance with requirerhents of this Chapter, and such work is
proceeding in accordance with the time limits set forth in any
order of the department or determination of the board.
TABLE NO. 91 -A
RATING CLASSIFICATIONS
CLASSIFICATION
OCCUPANT LOAD
Essential
N/A
Group I
300 or more
Group 11
100 to 299
Group III
50 to 99
Group IV
Less than 50
TABLE NO. 91 -B
TIME LIMITS FOR COMPLIANCE
OBTAIN
BUILDING PERMIT
WITHIN
COMMENCE
CONSTRUCTION
WITHIN
COMPLETE
CONSTRUCTION
WITHIN
365 days
545 days
3 years
TABLE NO. 91 -C
SERVICE PRIORITIES
RATING CLASSIFICATION
MINIMUM TIME PERIOD
BEFORE SERVICE OF
ORDER
Group I &• Essential (Highest Priority)
30 days
Group II
90 days
Group III
240 days
Group IV (Lowest Priority)
1 year
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CHAPTER 92
VOLUNTARY - EARTHQUAKE HAZARD REDUCTION IN EXISTING
WOOD FRAME RESIDENTIAL BUILDINGS WITH WEAK CRIPPLE
WALLS AND UNBOLTED SILL PLATES
SECTION 9201
GENERAL
9201.1 Purpose. The provisions of this Chapter are intended to
promote public safety and welfare by reducing the risk of earth-
quake-induced damage to existing wood- framed residential
buildings. The voluntary minimum standards contained in this
Chapter shall substantially improve the seismic perforniance of
these residential buildings but will not necessarily prevent all
earthquake damage. When fully followed, these standards will
strengthen the portion of the structure that is most vulnerable to
earthquake damage.
Prior to 1960, most wood frame residential buildings were
built with raised wood floors supported by short wood stud
walls known as cripple walls. These cripple walls are typically
braced with weak seismic materials such as portland cement
plaster or horizontal wood siding. In addition, wood frame
buildings built under building codes in effect prior to July 1938
were not required to be bolted to their foundations. Recent
earthquakes have shown that i'f a building has weak cripple
walls or is unbolted, it may fall off its foundation even in mod-
erate earthquakes. Fallen buildings have collapsed, caught fire
or needed extensive repairs to restore their occupancy.
This Chapter sets prescriptive standards for strengthening of
underfloor enclosures that shall be permitted by the Superin-
tendent of Building without requiring plans or calculations pre-
pared by an architect or an engineer. This Chapter also provides
a design standard for the use of alternate materials or an alter-
nate method of construction in lieu of the prescriptive stan-
dards. Construction documents for strengthening using
alternate materials or methods shall be prepared by an architect
or engineer.
9201.2 Scope. The provisions of this Chapter may be applied to
light wood frame Group R occupancies with no more than four
dwelling units when they contain one or more of the structural
weaknesses specified in Section 9203.1.
The provisions of this Chapter do not apply to the buildings
or elements of the buildings, listed below. These buildings or
elements require analysis by an engineer or architect in accor-
dance with Chapter 16 or other approved standards to deter-
mine appropriate strengthening. '
1. Buildings with a lateral force resisting system using
poles or columns embedded in the ground.
2. Cripple walls that exceed 4 feet (1234 mm) in height.
3. Buildings exceeding three stories in height and any
three-story building with cripple wall studs exceeding 14
inches (360 mm) in height.
4. Buildings, or portions of buildings, constructed on a con-
crete slab on grade or constructed on or into a slope
steeper than three horizontal to one vertical.
5. Buildings where the Superintendent of Building deter-
mines that conditions exist that are beyond the scope of
the requirements of this Chapter.
The standard details approved by the Superintendent of
Building and these prescriptive provisions are not intended to
be the only acceptable strengthening methods permitted. Alter-
nate details and methods shall be permitted when approved by
the Superintendent of Building. Qualified Historical Buildings
shall be permitted to use alternate building regulations of Sec-
tion 8119 of this Code in order to preserve their original or
restored architectural elements and features.
9201.3 Alternative design procedures. When analysis by an
engineer or architect is required or provided for a building
within the scope of this Chapter, that analysis shall be in accor-
dance with all requirements of this Code except as provided in
this Chapter. The design shall provide strengthening for any
structural weakness listed in Section 9203 that is at least equiv-
alent to that provided by the prescriptive requirements of this
Chapter with respect to strength, deflection, and capacity. The
Superintendent of Building may require that sufficient evi-
dence be submitted to substantiate that equivalence. The base
shear may be determined in accordance with the following:
V=0.U75W
(Formula 92-1)
where:
y = The total design lateral force or shear at the base.
W = The total seismic dead load defined in Section 1 2 . 7 . 2 of
ASCE7
SECTION 9202
DEFINITIONS
For the purpose of this Chapter, in addition to the applicable
definitions, symbols and notations in this Code, certain addi-
tional terms are defined as follows:
ADHESIVE ANCHOR. A fastener placed in hardened con-
crete or masonry that derives its holding strength from a chemi-
cal adhesive compound placed between the wall of the hole and
the embedded portion of the anchor.
ANCHOR SIDE PLATE. A metal plate or plates used to con-
nect a sill plate to the side of a concrete or masonry stem wall.
CRIPPLE WALL. A wood-framed stud wall extending from
the top of the foundation to the underside of the lowest floor
framing.
EXPANSION ANCHOR. A mechanical fastener placed in
hardened concrete or assembled masonry, designed to expand
in a self-drilled or pre-drilled hole of a specified size and
engage the sides of the hole in one or more locations to develop
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shear and/or tension resistance to applied loads without grout,
adhesive or drypack.
PERIMETER FOUNDATION. A foundation system which
is located under the exterior walls of a building.
SNUG-TIGHT, As tight as an individual can torque a nut on a
bolt by hand using a wrench with a 10-inch (254 mm) long han-
dle and the point at which the full surface of the plate washer is
contacting the wood member and slightly indents the wood sur-
face.
UNREINFORCED MASONRY. Includes adobe, burned
clay, concrete or sand-lime brick, hollow clay or concrete
block, hollow clay tile, rubble, cut stone and unburned clay
masonry walls in which the area of reinforcement is less than
50 percent of the minimum steel ratios required for reinforced
masonry.
SECTION 9203
STRUCTURAL WEAKNESSES
9203.1 General. For the purpose of this Chapter, structural
weaknesses shall be as specified below.
1. Sill plates or floor framing which are supported directly
on the ground without an approved foundation system.
2. A perimeter foundation system which is constructed of
wood posts supported on isolated pad footings.
3. Perimeter foundation systems that are not continuous.
Exceptions:
1 . Existing single-story exterior walls not exceed-
ing 10 feet (3084 mm) in length forming an
extension of floor area beyond the line of an
existing continuous perimeter foundation.
2. Porches, storage rooms and similar spaces not
containing fuel-burning appliances.
4. A perimeter foundation system which is constructed of
unreinforced masonry.
5. Sill plates which are not connected to the foundation or
are connected with less than what is required by Section
9204.3.1.
6. Cripple walls that are not braced in accordance with the
requirements of Section 9204.4 and Table 92-A.
SECTION 9204
STRENGTHENING REQUIREMENTS
9204.1 General.
9204.1.1 Scope. The structural weaknesses noted in Section
9203 shall be strengthened in accordance with the require-
ments of this section. Strengthening work shall be allowed
to include both new construction and alteration of existing
construction. Except as provided here, all strengthening
work and materials shall comply with the applicable provi-
sions of this Code. All prescribe nailing in this Chapter shall
be common nails. Alternate methods of strengthening shall
be allowed provided the systems are designed by an engi-
neer or architect and approved by the Superintendent of
Building.
9204.1.2 Condition of existing wood materials. All exist-
ing wood materials that will be a part of the strengthening
work shall be in a sound condition and free from defects
which substantially reduce the capacity of the member. Any
wood material found to contain fungus infection shall be
removed and replaced with new material. Any wood mate-
rial found to be infested with insects or to have been infested
shall be strengthened or replaced with new materials to pro-
vide a net dimension of sound wood at least equal to its
undamaged original dimension.
9204.1.3 Floor joists not parallel to foundations. Floor
joists framed perpendicular or at an angle to perimeter foun-
dations shall be restrained by either a nominal 2-inch (5 1
mm) wide continuous rim joist or a nominal 2-inch (5 1 mm)
wide full depth blocking between alternate joists in one- and
two-story buildings, and between each joist in three-story
buildings. Blocking for multistory buildings must occur at
each joist space above a braced cripple wall panel.
Existing connections at the top edge of an existing rim
joist or blocking need not be verified. The bottom edge con-
nection to either the foundation sill plate or top plate of a
cripple wall shall be verified unless a supplemental connec-
tion is provided. The minimum existing bottom edge con-
nection shall consist of 8d toe nails spaced 6 inches (152
mm) apart for a continuous rim joist or three 8d toe nails per
block. When this minimum bottom edge connection is not
present, or is not verified, a supplemental connection shall
be provided.
When an existing continuous rim joist or the minimum
existing blocking does not occur, new IVg inch (29 mm)
wood structural panel blocking installed tightly between
floor joists and nailed with lOd common nails at four inches
on center to the sill or wall top plate shall be provided at the
inside face of the cripple wall. In lieu of 1 Vg inch (29 mm)
wood structural panel blocking, tight fitting, full or near full
depth two inches nominal width (5 1 mm) lumber blocking
shall be allowed provided it does not split during installa-
tion. New blocking is not required where it will interfere
with vents or plumbing which penetrates the wall.
9204.1.4 Floor joists parallel to foundations. Where
existing floor joists are parallel to the perimeter founda-
tions, the end joist shall be located over the foundation and,
except for required ventilation openings, shall be continu-
ous and in continuous contact with any existing foundation
sill plate or top plate of the cripple wall. Existing connec-
tions at the top edge connection of the end joist need not be
verified; however, the bottom edge connection to either the
foundation sill plate or the top plate of a cripple wall shall be
verified unless a supplemental connection is provided. The
minimum bottom edge connection shall be 8d toe nails
spaced 6 inches (152 mm) apart. If this minimum bottom
edge connection is not present or is not verified, a supple-
mental connection shall be provided.
9204.1.5 Supplemental connections. Supplemental con-
nections shall provide sufficient strength to transfer the seis-
mic forces. Framing anchors of minimum 18 gauge steel
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and 12 approved fasteners may be considered to meet this
requirement when spaced 32 inches (813 mm) oh center for
one story buildings, 24 inches (610 mm) on center for two
story buildings and 16 inches (406 mm) on center for three
story buildings.
Exception: A supplemental connection is not required
when:
1 . The structural wood panel sheathing extends from
the sill plate to the rim joist or blocking above.
2. The floor sheathing is nailed directly into the sill or
top plate of the cripple wall.
9204.1.6 Single top plate ties. When a single top plate
exists in the cripple wall, all end joints in the top plate shall
be tied. Ties shall be connected to each end of the discontin-
uous top plate and shall be equal to one of the following:
1. Three-inch by 6-inch (76 mm by 152 mm) by
0.036-inch-thick (0.9 mm) galvanized steel and
nailed with six 8d nails at each end.
2. One and one-half inches (38 mm) by 12-inch (305
mm) by 0.058 inches (1.47 mm) galvanized steel
nailed with six 16d nails at each end.
■ 3. Two-inch by 4-inch by 12-inch wood blocking nailed
with six 16d nails at each end.
9204.2 Foundations.
9204.2.1 New perimeter foundations. New perimeter
foundations shall be provided for structures with the struc-
tural weaknesses noted in Items 1 and 2 of Section 9203.1.
Soil investigations or geotechnical studies are not required
for this work unless the building shows signs of excessive
settlement or creep.
9204.2.2 Foundation evaluation by engineer or archi-
tect. Partial perimeter foundations or unreinforced masonry
foundations shall be evaluated by an engineer or architect
for the force levels noted in Formula (92-1). Test reports or
other substantiating data to determine existing foundation
material strengths shall be submitted for review. When
approved by the Superintendent of Building, these founda-
tion systems may be strengthened in accordance with the
recommendations included with the evaluation in lieu of
being replaced.
Exception: In lieu of testing existing foundations to
determine material strengths and when approved by the
Superintendent of Building, a new nonperimeter founda-
tion system, designed for the forces noted in Formula
(92-1), may be used to resist all exterior wall lateral
forces.
9204.2.3 Details for new perimeter foundations. All new
perimeter foundations shall be continuous and constructed
according to the standards for new buildings.
Exceptions:
1 . When approved by the Superintendent of Build-
ing, the existing clearance between existing floor
joists or girders and existing grade below the floor
need not comply with Section 2304.11.2.1. This
exception shall not be permitted when buildings
are relocated on new foundations.
2. When approved by the Superintendent of Build-
ing, and when designed by an engineer or archi-
tect, partial perimeter foundations may be used in
lieu of a continuous perimeter foundation.
9204.3 Foundation sill plate anchorage.
9204.3.1 Existing perimeter foundations. When the
building has an existing continuous perimeter foundation,
all perimeter wall sill plates shall be connected to the foun-
dation in accordance with Table 92- A and this section.
Anchors shall be installed with the plate washer installed
between the nut and the sill plate. The nut shall be tightened
to a snug-tight condition after curing is complete for adhe-
sive anchors and after expansion wedge engagement for
expansion anchors. The installation of nuts on all anchors
shall be subject to verification by the Superintendent of
Building. Torque testing shall be performed for 25 percent
of all adhesive or expansion anchors. Minimum test values
shall be 30 foot pounds (41 Nm) for V2 inch (12.7 mm) and
40 foot pounds (55 Nm) for Vg-inch (15.9 mm) diameter
anchors.
Anchor side plates shall be permitted when conditions
prevent anchor installation vertically through the sill plate.
Anchor side plates shall be spaced as required for adhesive
or expansion anchors but only one anchor side plate is
required on individual pieces of sill plate less than 32 inches
(813 mm) in length. Wood structural panel shims shall be
used on sill plates for single plate anchor side plates when
the foundation stem wall is from Vj^ inch (4.8 mm) to V4 inch
(19 mm) wider than the sill plate. The shim length shall
extend a minimum of two inches ( 50.8 mm) past each end
of the anchor side plate. Two plate anchor side plates shall
be used when the total thickness of the required shim
exceeds V4 inch (19 mm).
All anchor side plates, which use lag or wood screws shall
pre-drill the sill plate to prevent splitting as required by Sec-
tion 2304.9. Lag or wood screws shall be installed in the
center of the thickness of the existing sill plate.
Expansion anchors shall not be used in unreinforced
masonry or concrete or masonry grout of poor quality.
Adhesive anchors shall be required when expansion
anchors will not tighten to the required torque or their instal-
lation causes surface cracking of the foundation wall.
9204.3.2 Placement of anchors. Anchors shall be placed
within 12 inches (305 mm), but not less than nine inches
(229 mm), from the ends of sill plates and shall be placed
near the center of the stud space closest to the required spac-
ing. New sill plates may be installed in pieces when neces-
sary because of existing conditions. The minimum length of
new sill plate pieces shall be 30 inches (762 mm).
Exception: Where physical obstructions such as fire-
places, plumbing or heating ducts interfere with the
placement of an anchor, the anchor shall be placed as
close to the obstruction as possible, but not less than 9
inches (229 mm) from the end of the plate. Cen-
ter-to-center spacing of the anchors shall be reduced as
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necessary to provide the minimum total number of
anchors required based on the full length of the wall.
Center-to-center spacing shall not be less than 12 inches
(305 mm).
J.3.3 New perimeter fouedatnons. Sill plates for new
perimeter foundations shall be anchored as required by Sec-
tion 1805.6.
92®4,4 Cripple wall toracimg.
920)4,4.1 GemeraL Exterior cripple walls, not exceeding
four feet (1219 mm) in height shall use the prescriptive brac-
ing method listed below. Cripple walls more than four feet
(1219 mm) in height require analysis by an engineer or
architect in accordance with Chapter 16.
.4.1.1 Sheathing requirements. Wood structural
panel sheathing shall not be less than 'V32-inch (12 mm)
thick. When used, plywood panels shall be constructed
of five or more plies. All wood structural panels shall be
nailed with 8d common nails spaced four inches (102
mm) on center at all edges and at 12 inches (305 mm) on
center at each intermediate support with not less than two
nails for each stud. Nails shall be driven so that their head
or crown is flush with the surface of the sheathing and
shall penetrate the supporting member a minimum of 1 Vj
inch (38 mm). When a nail fractures the surface, it shall
be left in place and not counted as part of the required
nailing. A new 8d nail shall be located within 2 inches
(5 1 mm) of the discounted nail and hand driven flush
with the sheathing surface.
Exception: No. 6 by 1 Vj inch (38 mm) wood screws
may be used for sheathing nailing when bracing mate-
rials are installed on the interior face of studs and
cement plaster or other brittle finishes are on the exte-
rior of the sheathed wall.
All horizontal joints must occur over nominal 2-inch
by 4-inch (51 mm by 102 mm) blocking installed with
the nominal 4-inch (102 mm) dimension against the face
of the plywood. All vertical joints must occur over studs.
Vertical joints at adjoining pieces of wood structural pan-
els shall be centered on existing studs such that there is a
minimum Vg inch (3.2 mm) between the panels. Nails
shall be placed a minimum of Vj inch (12.7 nmi) from the
edges of the existing stud. When such edge distance can-
not be maintained because of the width of the existing
stud, a new stud shall be added adjacent to the existing
and connected with 16d common nails at eight inches
(206 mm) on center. A minimum of three such nails shall
be provided.
„ See Table
92- A for the distribution and amount of bracing required.
Bracing for a building with three or more floor levels above
cripple wall studs exceeding 14 inches (356 mm) in height
must be designed in accordance with Chapter 16.
The braced panel must be at least two times the height of
the cripple stud wall but not less than 48 inches (1219 mm)
in width. All panels along a wall shall be nearly equal in
length and shall be nearly equally spaced along the length of
the wall. Braced panels at ends of walls shall be located as
near the end as possible.
Where physical obstructions such as fireplaces, plumbing
or heating ducts interfere with the placement of cripple wall
bracing, the bracing shall then be placed as close to the
obstruction as possible. The total amount of bracing required
shall not be reduced because of obstructions but the required
length of bracing need not exceed the length of the w^l.
Underfloor ventilation openings shall be maintained in
accordance with Section 2306.7. Braced panels may include
underfloor ventilation openings when the height of the solid
portion of the panel meets or 75 percent of the height of the
cripple stud wall. When the minimum amount of bracing pre-
scribed in Table 92- A cannot be installed due to obstructions
along any wall, the bracing must be designed by an architect
or engineer in accordance with Section 1203.3.
9204.4.3 Stud space ventilation. When bracing materials
are installed on the interior face of studs forming an
enclosed space between the new bracing and existing exte-
rior finish, each braced stud space must be ventilated. Ade-
quate ventilation and access for future inspection shall be
provided by drilling on 2-inch to 3-inch (51 nmi to 76 mm)
diameter round hole through the sheathing nearly centered
between each stud at the top and bottom of the cripple wall.
Such holes should be spaced a minimum of 1-inch (25 mm)
clear from the sill or top plates. In stud spaces containing sill
bolts, the hole shall be located on the center line of the sill
bolt but not closer than 1-inch (25 mm) clear from the nail-
ing edge of the sheathing.
When existing blocking occurs within the stud space, addi-
tional ventilation holes shall be placed above and below the
blocking or the existing block shall be removed and a new
nominal 2-inch (5 1 mm) by 4-inch (102 mm) block installed
with the nominal 4-inch (102 mm) dimension against the face
of the plywood. For stud heights less than 18 inches (457
mm) only one ventilation hole need be provided.
9204.4.4 Existing underfloor ventilation. Existing under-
floor ventilation shall not be reduced without providing
equivalent new ventilation as close to the existing as possi-
ble. New sheathing may be installed around existing vent
openings in braced panels when the length of tlie panel is
increased a distance equal to the length of the vent opening
or one stud space minimum.
Exception: For residential buildings with a post and pier
foundation system where a new continuous perimeter
foundation system is being installed, ventilation shall be
provided in accordance with this Code.
SECTION 9205
QUALITY CONTROL
9205.1 Inspection by the department. All work shall be sub-
ject to inspection by the Superintendent of Building including,
but not limited to:
1 . Placement and installation of new adhesive or expansion
anchors or anchor side plates installed in existing foun-
dations.
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2008 CITY OF LOS ANGELES BUILDING CODE
VOLUNTARY - EARTHQUAKE HAZARD REDUCTION
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2. Placement of required blocking and framing anchors.
3. Installation and nailing of new cripple wall bracing.
The torque testing of sill plate anchors per Section 9204.3. 1
shall be performed by the building inspector,
9205.2 Special inspection. Special inspection is not required
for sill plate anchors installed in existing foundations regulated
by the provisions of this Chapter. Any work may be subject to
special inspection when required by the Superintendent of
Building or when so designated by the architect or engineer of
record.
9205.3 Structural observation. Structural observation is not
required for work done under the prescriptive provisions of this
Chapter. When construction documents for strengthening are
prepared by an architect or engineer and alternate materials or
methods are used, structural observation shall be provided as
required in Section 1709.
9205.4 Engineer's or architect's statement. When an alter-
native design is provided per Section 9201.3, the responsible
engineer or architect shall place the following statement on the
approved plans:
1 . "I am responsible for this building' s seismic strengthen-
ing design for the underfloor cripple walls and sill bolt-
ing in compliance with the minimum seismic resistance
standards of Chapter 92 of the Los Angeles Building
Code."
or when applicable:
2. "The Registered Deputy Inspector, required as a condi-
tion of the use of structural design stresses requiring con-
tinuous inspection, will be responsible to me as required
by Section 1704 of the Los Angeles Building Code."
TABLE g2-A
SILL PLATE ANCHORAGE AND CRIPPLE WALL BRACING ' ^.^
NUMBER OF STORIESABOVE
CRIPPLE WALLS
MINIMUM SILL PLATE CONNECTION AND MAXIMUM SPACING
AMOUNT OF WALL BRACING
One Story
Adhesive or expansion anchors shall be V2-inch (12.7 mm) minimum
diameter spaced at six feet (1829 mm) maximum center to center.
Each end and not less than 50%
of the wall length.
Two Story
Adhesive or expansion anchors shall be V2-inch (12.7 mm) minimum
diameter spaced at four feet (1219 mm) maximum center to center; or ^/g
inch (15.9 mm) spaced at six feet maximum center to center.
Each end and not less than 70%
of the wall length.
Three Story
Adhesive or expansion anchors shall be V2-inch minimum (12.7 mm)
diameter spaced at two feet eight inches (813 mm) maximum center to
center; or Vg-inch minimum (15.9 mm) diameter spaced at four feet (1219
mm) maximum center to center.
100% of the wall length.
1 . Plate washers for use with adhesive or expansion anchors shall be 2-inch (5 1 mm) by 2-inch (5 1 mm) by ■'/,5-inch (4.8 mm) for Vj-inch (12.7 mm) diameter anchors
and 2V2-inch (64 mm) by 2V2-inch (64 mm) by '/4-inch (6 mm) for Vg-inch (15.9 mm) diameter anchors.
2. Existing sill plate anchor bolts shall be permitted to provide all or a portion of the sill plate connection requirement if:
a. the anchor bolt is cast in concrete and in sound condition.
b. the diameter size and maximum spacing meets or exceeds the requirements of Table 92- A.
c. a new plate washer conforming to footnote 1 is installed.
d. the sill plate is connected to a snug tight condition and torque tested per Section 9204.3.1.
3. Anchor side plates shall be permitted when conditions prevent anchor installation vertically through the sill plate.
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2008 CITY OF LOS ANGELES BUILDING CODE
719
720 2008 C8TY OF LOS ANGELES BUILDING CODE
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t
CHAPTER 93
VOLUNTARY EARTHQUAKE HAZARD REDUCTION IN EXISTING
FRAME RESIDENTIAL BUILDINGS WITH SOFT, WEAK OR
OPEN FRONT WALLS
[CTION 9301
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The purpose of this Chapter is to promote the pubhc welfare
and safety by reducing the risk of death or injury that may result
from the effects of earthquakes on existing wood-frame
multi-unit residential buildings. The ground motion of the
Northridge Earthquake caused the loss of human life, personal
injury and property damage in these types of buildings. This
Chapter creates minimum standards to strengthen the more
vulnerable portions of these structures. When fully followed,
these minimum standards will substantially improve the per-
formance of these buildings but will not necessarily prevent all
earthquake related damage.
SECTION! 9302
SCOPE
The provisions of this Chapter shall apply to all existing wood
frame buildings or portions thereof, designed using the Los
Angeles Building Code in effect before January 1, 1995 which
are used as hotels, lodging houses, congregate residences or
apartment houses where:
1 . The ground floor portion of the wood frame structure
contains parking or other similar open floor space that
causes soft, weak, or open front wall lines as defined in
this Chapter and there exists one or more levels above,
or:
2. The walls of any story or basement of wood construction
are laterally braced with nonconforming structural mate-
rials as defined in this Chapter and there exists two or
more levels above.
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Notwithstanding the applicable definitions, symbols and nota-
tions in this Code, the following definitions shall apply for the
purposes of this Chapter:
L Any building or portion thereof
which contains three or more dwelling units, and for the pur-
poses of this Chapter, includes residential condominiums.
ASPECT
its width.
. The ratio of the height of a wall section to
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Any building or portion
thereof which contains facilities for living, sleeping and sanita-
tion, as required by this code, and may include facilities for eat-
ing and cooking, for occupancy by other than a family. A
congregate residence may be a shelter, convent, monastery.
dormitory, fraternity or sorority house but does not include
jails, hospitals, nursing homes, hotels or lodging houses.
CRIPPLE WALL. A wood-framed stud wall extending from
the top of the foundation wall to the underside of the lowest
floor framing.
DWELLING UNIT. Any building or portion thereof which
contains living facilities, including provisions for sleeping, eat-
ing, cooking and sanitation, as required by this code, for not
more than one family, or congregate residence for 10 or fewer
persons.
EXPANSION ANCHOR. An approved mechanical fastener
placed in hardened concrete, designed to expand in a
self-drilled or pre-drilled hole of a specified size and engage
the sides of the hole in one or more locations to develop shear
and/or tension resistance to applied loads without grout, adhe-
sive or drypack.
GROUND FLOOR. Any floor within the wood frame portion
of a building whose elevation is immediately accessible from
an adjacent grade by vehicles or pedestrians. The ground floor
portion of the structure does not include any level that is com-
pletely below adjacent grades.
GUEST ROOM. Any room or rooms used or intended to be
used by a guest for sleeping purposes. Every 100 square feet
(9.3 m^) of superficial floor area in a congregate residence shall
be considered a guest room.
HOTEL. Any building containing six or more guest rooms
intended or designed to be used, rented, hired out to be occu-
pied, or which are occupied for sleeping purposes by guests.
LEVEL. A story, basement, or underfloor space of a building
with cripple walls exceeding 4 feet (1219 mm) in height.
LODGING HOUSE. Any building or portion thereof contain-
ing at least one but not more than five guest rooms where rent is
paid in money, goods, labor or otherwise.
MOTEL. Shall mean a hotel as defined in this Chapter.
MULTI-UNIT RESIDENTIAL BUILDINGS. Hotels, lodg-
ing houses, congregate residences and apartment houses.
NONCONFORMING STRUCTURAL MATERIALS.
Wall bracing materials for seismic loads whose Los Angeles
Municipal Code allowable shear value was reduced or whose
maximum allowable aspect ratio was decreased since the origi-
nal building construction. These methods or materials include,
but are not limited to cement or gypsum plaster, gypsum wall-
board, diagonal or let-in bracing, straight or diagonal wood
sheathing, particle board and structural wood panels.
OPEN FRONT WALL LINE. An exterior wall line without
vertical elements of the lateral force resisting system which
requires tributary seismic forces to be resisted by diaphragm
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2008 CITY OF LOS ANGELES BUILDING CODE
721
VOLUNTARY EARTHQUAKE HAZARD REDUCTION
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rotation or excessive cantilever beyond parallel lines of shear
walls. Diaphragms that cantilever more than 25 percent of the
distance between lines of lateral force resisting elements shall
be considered excessive. Exterior exit balconies of six feet or
less in width shall not be considered excessive cantilevers.
RETROFIT. An improvement of the lateral force resisting
system by alteration of existing structural elements or addition
of new structural elements.
SOFT WALL LINE. A wall line whose lateral stiffness is less
than required by story drift limitations or deformation compati-
bility requirements of this Chapter. In lieu of analysis, this may
be defined as a wall line in a story where the story stiffness is
less than 70 percent of the story above for the direction under
consideration.
STORY STRENGTH. The total strength of all seismic resist-
ing elements sharing the same story shear in the direction under
consideration.
WALL LINE. Any length of a wall along a principal axis of the
building used to provide resistance to lateral loads. Parallel
wall lines separated by less than four feet shall be considered
one wall line for the distribution of loads.
A wall line laterally braced with
nonconforming structural materials or a wall line in a story
where the story strength is less than 80 percent of the story
above in the direction under consideration.
SECTION 9304
GENERAL REQUIREMENTS FOR
PHASED CONSTRUCTION
When the building contains three or more levels, the work
specified in this Chapter shall be permitted to be done in the fol-
lowing phases. Work shall start with Phase 1 unless otherwise
approved by the Superintendent of Building. When the build-
ing does not contain the conditions shown in any phase, the
sequence of retrofit work shall proceed to the next phase in
numerical order.
1. Phase 1 Work. The first phase of the retrofit work shall
include the ground floor portion of the wood structure
that contains parking or other similar open floor space.
2. Phase 2 Work. The second phase of the retrofit work
shall include the walls of any level of wood construction
with two or more levels above, which are laterally braced
with nonconforming structural materials.
3. Phase 3 Work. The third and final phase of the retrofit
work shall include the remaining portions of the building
up to but not including the top story as specified in Sec-
tion 9305.2.
SECTION 9305
ANALYSIS AND DES
9305.1 General. Every building within the scope of this Chap-
ter shall be analyzed, designed and constructed in conformance
with this Code except as modified herein. No alteration of the
existing lateral force-resisting or vertical load-carrying system
shall reduce the strength or stiffness of the existing structure.
When any portion of a building within the scope of this Chapter
is constructed on or into a slope steeper than 1 unit vertical in 3
units horizontal, the lateral-force-resisting system at and below
the base level diaphragm shall also comply with the provisions
of Chapter 94.
9305.2 Scope, This Chapter requires the alteration, repair,
replacement or addition of structural elements and their con-
nections to meet the strength and stiffness requirements of this
Code. The lateral load path analysis shall include the resisting
elements and connections from the wood diaphragm above any
soft, weak or open front wall lines to the foundation soil inter-
face or reinforced concrete slab or masonry wall supporting
elements below. The top story of any building need not be ana-
lyzed. The lateral load path analysis for added structural ele-
ments shall also include evaluation of the allowable soil
bearing and lateral pressures in accordance with Section 1804.
Exception: When an open front, weak or soft wall line
exists due to parking at the ground level of a two- level build-
ing and the parking area is less than 20 percent of the ground
floor level, then only the wall lines in the open, weak or soft
directions of the enclosed parking area, need comply with
the provisions of this Chapter.
9305.3 Design base shear. The design base shear shall be 75
percent of the value from Section 12.8. 1 of ASCE 7.
9305.4 Vertical distribution offerees. The total seismic force
shall be distributed over the height of the structure based on
Formulas (12.8-11) and (12.8-12) in Section 12.8.3 of ASCE 7.
Distribution of force by story weight shall be permitted for two
story buildings. The value of R used in the design of any story
shall be less than or equal to the value of R used in the given
direction for the story above.
9305.5 Weak story limitation. The structure shall not exceed
30 feet in height or two levels if the lower level strength is less
than 65 percent of the story above. Existing walls shall be
strengthened as required to comply with this provision unless
the weak level can resist a total lateral seismic force of Q.^ (per
Section 9305.3) times the design force prescribed in Section
9305.4.
The story strength for each level of all other structures shall
be a minimum of 80 percent of the story above.
9305.6 Story drift limitation. The calculated story drift for
each retrofitted level shall not exceed the allowable deforma-
tion compatible with all vertical load resisting elements and
0.005 or 0.04/R (per Section 9305.3) times the story height.
The calculated story drift shall not be reduced by the effects of
horizontal diaphragm stiffness but shall be increased when
these effects produce rotation.
The effects of rotation and soil stiffness shall be included in
the calculated story drift when lateral loads are resisted by ver-
tical elements whose required depth of embedment is deter-
mined by pole formulas such as Equation (18-1), (18-2) and
(18-3) in Section 1805.7.2.1. The coefficient of variation of
subgrade reaction used in the deflection calculations shall be
provided from an approved geotechnical engineering report or
other approved methods.
9305.7 P-Delta effect. The requirements of Section 12.8.7 of
ASCE 7 shall apply except as modified here. All framing ele-
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2008 CITY OF LOS ANGELES BUILDING CODE
VOLUNTARY EARTHQUAKE HAZARD REDUCTION
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ments not required by the design to be part of the lateral force
resisting system shall be investigated and shown to be adequate
for vertical load carrying capacity when displaced Q.^ (per Sec-
tion 9305.3) times the displacements resulting from the
required lateralforce. The stress analysis of cantilever columns
shall use a buckling factor of 2. 1 for the direction normal to the
axis of the beam.
9305.8 Ties and continuity. All parts of the structure included
in the scope of Section 9305.2 shall be interconnected and the
connection shall be capable of resisting the seismic force cre-
ated by the parts being connected. Any smaller portion of a
building shall be tied to the remainder of the building with ele-
ments having a strength of 0. 1 833 times the tributary dead load
of the smaller portion. A positive connection for resisting a hor-
izontal force acting parallel to the member shall be provided for
each beam, girder or truss included in the lateral load path. This
force shall not be less than 0.08 times the combined tributary
dead and live loads or as required by the lateral load path trans-
fer, whichever is greater.
5.9 Collector elements. Collector elements shall be pro-
vided which can transfer the seismic forces originating in other
portions of the building to the elements within the scope of Sec-
tion 9305.2 that provide resistance to those forces.
10 Horizontal diaphragms. The analysis of shear
demand or capacity of an existing plywood or diagonally
sheathed horizontal diaphragm need not be investigated unless
the diaphragm is required to transfer lateral forces from the lat-
eral resisting elements above the diaphragm to other lateral
resisting elements below the diaphragm due to offset in place-
ment of the elements.
Wood diaphragms in structures that support floors or roofs
above shall not be allowed to transmit lateral forces by rotation
or cantilever. However, rotational effects shall be accounted for
when unsymmetric wall stiffness increases shear demands.
Exception: Diaphragms that cantilever 25 percent or less of
the distance between lines of lateral load resisting elements
from which the diaphragm cantilevers may transmit their
shears by cantilever provided that rotational effects on shear
walls parallel and perpendicular to the load are accounted
for.
)5.11 Shear walls. Shear walls shall have sufficient strength
and stiffness to resist the tributary seismic loads and shall con-
form to the special requirements of this section.
9305.11.1 Gypsum or plaster products. Gypsum or plas-
ter products shall not be used to provide lateral resistance.
LA 9305.11.2 Wood structural panels.
9305.11.2.1 Drift limit. Wood structural panel shear
walls shall meet the story drift limitation of Section
9305.7. Conformance to the story drift limitation shall be
determined by approved testing or calculation or analo-
gies drawn from there and not the use of an aspect ratio.
Calculated deflection shall be in accordance with Chap-
ter 23, "Calculation of Shear Wall Deflection" and 25
percent shall be added to account for inelastic action and
repetitive loading. Contribution to the deflection from
the anchor or tie down slippage shall also be included.
The slippage contribution shall include the vertical elon-
gation of the metal, the vertical slippage of the connec-
tors and compression or shrinkage of the wood elements.
The vertical slippage shall be multiplied by the aspect
ratio and added to the total horizontal deflection. Individ-
ual shear panels shall be permitted to exceed the maxi-
mum aspect ratio provided the story drift and allowable
shear capacities are not exceeded.
9305.11.2.2 Openings. Openings are permitted in shear
walls if they do not exceed 50 percent of the height or
width of the shear wall. The remaining portion of the
shear wall shall be strengthened for the transfer and
increase of all shearing forces caused by the opening.
The resulting shear wall shall be analyzed as a mosaic of
shear resisting elements. Blocking and steel strapping
shall be employed at the comers of the opening to trans-
fer forces from discontinuous boundary elements into
adjoining panel elements.
The effect of openings on the stiffness of the shear wall
shall be demonstrated to comply with the requirements
of Section 9305.6. The stiffness shall be calculated using
the properties of the different shear elements making up
the shear wall or it shall be demonstrated by approved
testing. When shear walls cannot be made to conform to
the requirements of this section because of existing
openings, the openings shall be relocated or reduced in
width to meet the strength and stiffness requirements of
the lateral loads.
Relocated and altered openings shall comply with the
emergency escape requirements in Chapter 10. Relo-
cated and altered openings shall comply with the light
and ventilation requirements in Chapter 12 unless other-
wise approved by the Superintendent of Building.
9305.11.2.3 Wood species of framing members.
Allowable shear values for wood structural panels shall
consider the species of the framing members. When the
allowable shear values are based on Douglas fir-larch
framing members and framing members are constructed
of other species of lumber, the allowable shear values
shall be determined in accordance with Chapter 23.
9305.11.3 Mechanical penetrations. Mechanical penetra-
tions in shear walls that exceed the provisions of Chapter 23
shall be accounted for in the design or the shear wall shall be
analyzed as two separate walls on each side of the penetra-
tion.
9305.11.4 Substitution for 3 inch nominal width framing
members. Two 2-inch nominal width framing members
shall be permitted in lieu of any required 3-inch nominal
width framing member when the existing and new framing
member are of equal dimensions, are connected as required
to transfer the in-plane shear between them and the sheath-
ing fasteners are equally divided between them.
9305.11.5 Hold down connectors.
9305.11.5.1 Expansion anchors in tension. Expansion
anchors that provide tension strength by friction resis-
tance shall not be used to connect hold down devices to
existing concrete or masonry elements. Expansion
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2008 CITY OF LOS ANGELES BUILDING CODE
723
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anchors shall be permitted to provide tension strength by
bearing.
11.5.2 Required depth of embedment. The
required depth of embedment or edge distance for the
anchor used in the hold down connector shall be pro-
vided in the concrete or masonry below any plain con-
crete slab unless satisfactory evidence is submitted to the
Department that shows that the concrete slab and foot-
ings are of monolithic construction.
93®5.11.5,3 Required preload of bolted hold down
comnectors. Bolted hold down connectors shall be
preloaded to reduce slippage of the connector.
Preloading shall consist of tightening the nut on the ten-
sion anchor after the placement but before the tightening
of the sheai" bolts in the panel flange member. The ten-
sion anchor shall be tightened until the shear bolts are in
firm contact with the edge of the hole nearest the direc-
tion of the tension anchor. Hold down connectors with
self-jigging bolt standoffs shall be installed in a manner
to permit preloading.
SECTION 9306
j.l New materials. All materials approved by this Code,
including their appropriate allowable stresses and minimum
aspect ratios, shall be permitted to meet the requirements of this
Chapter.
5.2 Allowable fonindatlon and lateral pressures. Allow-
able foundation and lateral pressures shall be permitted to use
the values from Table 1804.2. The coefficient of variation of
subgrade reaction shall be established by an approved
geotechnical engineering report or other approved methods
when used in the deflection calculations of embedded vertical
elements as required in Section 9305.6.
.3 Existimg Materials. All existing materials shall be in
sound condition and constructed in conformance to this Code
before they can be used to resist the lateral loads prescribed in
this Chapter. The verification of existing material conditions
and their conformance to these requirements, shall be made by
physical observation reports, material testing or record draw-
ings as determined by the structural designer and approved by
the Department.
9306.3.1 Horizontal wood diaphragms. Existing horizon-
tal wood diaphragms that require analysis under Section
9305.10 shall be permitted to use Table No. 88-H of this
code for their allowable values.
9306.3.2 Wood structural panel shear walls.
.2.1 Allowable mail slip values. When the
required drift calculations of Section 9305. 1 1 .2. 1 rely on
the lower slip values for common nails or surfaced dry
lumber, their use in construction shall be verified by
exposure. The use of box nails and unseasoned lumber
may be assumed without exposure. The verification of
surfaced dry lumber shall be by identification conform-
ing to Chapter 23.
9306.3.2.2 Reduction for clipped nail heads. When
exposed nails do not meet the nominal head sizes
required for hand driven nails in Chapter 23, the allow-
able shear capacity for wood structural panel shear walls
shall be proportionately reduced. The reduction shall be
a percentage of the reduction in the nail head area below
the required nail head area including tolerances.
9306.3.2.3 Plywood panel construction. When verifi-
cation of the existing plywood materials is by use of
record drawings alone, the panel construction for ply-
wood shall be assumed to be of three plies.
9306.3.2.4 Framing members of other species. When
verification of the existing wood material is by use of
record drawings, the allowable shear capacity shall be
multiplied by the reduction factor of 0.82 for buildings
built on or after 1960. Buildings built before this period
shall use the reduction factor 0.65. When verification of
the existing wood material is by identification in confor-
mance to Chapter 23, the allowable shear capacity shall
be determined in accordance with Section 9305.11.2.3.
9306.3.3 Lumber. When the existing dimensioned lumber
is not identified in conformance to Chapter 23, the allow-
able stresses shall be permitted for the structural elements
specified in the chart below.
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Posts and Beams
Douglas Fir-larch No. 1
Joists and Rafters
Douglas Fir-larch No. 2
Studs, Blocking
Hem Fir Stud.
9306.3.4 Structural steel. All existing structural steel shall
be permitted to use the allowable stresses for Grade A3 6.
Existing pipe or tube columns shall be assumed to be of
minimum wall thickness unless verified by testing or expo-
sure.
9306.3.5 Strength of concrete. All existing concrete foot-
ings shall be permitted to use the allowable stresses for plain
concrete with a compressive strength of 2,000 psi (13 790
kPa). The strength of existing concrete with a record com-
pressive strength greater than 2,000 psi (13 790 kPa) shall
be verified by testing, record drawings or Department
records.
9306.3.6 Existing sill plate anchorage. Existing
cast-in-place anchor bolts shall be permitted to use the
allowable service loads for bolts with proper embedment
when used for shear resistance to lateral loads.
SECTION 9307
REQUIRED INFORMATION ON PLANS
9307.1 General. The plans shall show all necessary dimen-
sions and materials for plan review and construction and shall
accurately reflect the results of the engineering investigation
and design.
9307.2 Existing construction. The plans shall show the exist-
ing diaphragm and shear wall sheathing and framing materials,
fastener type and spacing, diaphragm and shear wall connec-
tions, continuity ties, and collector elements. The plans shall
also show the portion of the existing materials that needs verifi-
cation during construction.
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9307.3 New construction.
9307.3.1 Foundation plan elements. The foundation plan
shall include the size, type, location and spacing of all
anchor bolts with the required depth of embedment, edge
and end distance; the location and size of all columns for
braced or moment frames; referenced details for the connec-
tion of braced or moment frames to their footing and refer-
enced sections for any grade beams and footings.
9307.3.2 Framing plan elements. The framing plan shall
include the width, location and material of shear walls; the
width, location and material of frames; references on details
for the column to beam connectors, beam to wall connec-
tions, and shear transfers at floor and roof diaphragms; and
the required nailing and length for wall top plate splices.
9307.3.3 Shear wall schedule, notes and details. Shear
walls shall have a referenced schedule on the plans that
includes the correct shear wall capacity in pounds per foot;
the required fastener type, length, gauge and head size; and
a complete specification for the sheathing material and its
thickness. The schedule shall also show the required loca-
tion of 3-inch (76 mm) nominal or two 2-inch (5 1 mm) nom-
inal edge members; the spacing of shear transfer elements
such as framing anchors or added sill plate nails; the
required hold-down with its bolt, screw or nail sizes; and the
dimensions, lumber grade and species of the attached fram-
ing member.
Notes shall show required edge distance for fasteners on
structural wood panels and framing members; required
flush nailing at the plywood surface; limits of mechanical
penetrations; and the sill plate material assumed in the
design. The limits of mechanical penetrations shall also be
detailed showing the maximum notching and drilled hole
sizes.
9307.3.4 General notes. General notes shall show the
requirements for material testing, special inspection, struc-
tural observation and the proper installation of newly added
materials.
9307.3.5 Engineer's or architect's statement. The
responsible engineer or architect shall provide the following
statements on the approved plans:
1. "I am responsible for designing this building's seis-
mic strengthening in compliance with the minimum
regulations of Chapter 93 of the Los Angeles Building
Code."
and when applicable:
2. "The Registered Deputy Inspector, required as a con-
dition of the use of structural design stresses requiring
continuous inspection, will be responsible to me as
required by Section 1704 of the Los Angeles Building
Code."
2008 CITY OF LOS ANGELES BUILDING CODE
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•
CHAPTER 94
VOLUNTARY-EARTHQUAKE HAZARD REDUCTION IN EXISTING
HILLSIDE BUILDINGS
SECTION 9401
PURPOSE
The purpose of this Chapter is to promote public safety and
welfare by reducing the risk of death or injury that may result
from the effects of earthquakes on existing hillside buildings
constructed on or into slopes in excess of one unit vertical in
three units horizontal (33.3-percent slope). Such buildings
have been recognized as life hazardous as a result of partial or
complete collapse that occurred during the Northridge Earth-
quake.
The provisions of this Chapter are minimum standards for
structural systems established primarily to reduce the risk of
loss of life or injury resulting from earthquakes and will not
necessarily prevent loss of life or injury or prevent earthquake
damage to an existing building which complies with these stan-
dards.
This Chapter provides voluntary retrofit standards under
which buildings shall be permitted to be structurally analyzed
and retrofitted. When fully followed, these standards will
strengthen the portion of the structure that is most vulnerable to
earthquake damage.
SECTION 9402
SCOPE
The provisions of this Chapter may be applied to all existing
hillside buildings designed under building codes effective prior
to June 19, 1995. If only a portion of the building is supported
on or into the slope, these regulations may be applied to the
entire building.
Seismic retrofit work as described in this Chapter may be
applied to the portion of the structure defined as the
base-level-diaphragm and below. Nonhabitable accessory
buildings, decks not supporting the main building, and existing
conditions above the base-level-diaphragm are exempt from
these regulations.
Seismic strengthening constructed prior to the effective date
of the ordinance may be evaluated in accordance with the pro-
visions of this Chapter.
SECTION 9403
DEFINITIONS
For the purpose of this Chapter, in addition to the applicable
definitions, symbols and notations in this Code, certain addi-
tional terms are defined as follows:
BASE (BASE LEVEL). The level at which the earthquake
motions are considered to be imparted to the structure or the
level at which the structure as a dynamic vibrator is supported.
BASE-LEVEL-DIAPHRAGM. The floor at, or closest to, the
top of the highest level of the foundation.
DIAPHRAGM ANCHORS. Assemblies that connect a dia-
phragm to the adjacent foundation at the uphill diaphragm
edge.
DIAPHRAGM BACKSPAN. The horizontal cantilevered
distance parallel to the direction of the lateral force, between
the outermost vertical lateral force resisting elements and the
edge of the diaphragm.
DOWNHILL-DIRECTION. The descending direction of the
slope approximately perpendicular to the slope contours.
FOUNDATION. The concrete or masonry which supports a
building, including footings, stem walls, retaining walls, and
grade beams.
FOUNDATION EXTENDING IN THE DOWN-
HILL-DIRECTION. A descending foundation and approxi-
mately perpendicular to the uphill foundation.
FOUNDATION, UPHILL. A foundation parallel and closest
to the uphill diaphragm edge, as defined herein.
HILLSIDE BUILDING. Any wood frame building or portion
thereof constructed on or into a slope steeper than one unit ver-
tical in three units horizontal (33.3-percent slope).
PRIMARY ANCHORS. Diaphragm anchors designed for
and providing direct connection as described in Sections
9406.2 and 9406.3 between the diaphragm and the uphill foun-
dation.
RETROFIT. An improvement of the lateral force resisting
system of the structure by an alteration of existing or addition
of new structural elements.
SECONDARY ANCHORS. Diaphragm anchors designed
for and providing a redundant diaphragm to foundation con-
nection, as described in Section 9406.4.
UPHILL DIAPHRAGM EDGE. The edge of the diaphragm
adjacent to or closest to the highest ground level at the perime-
ter of the diaphragm.
SECTION 9404
GENERAL REQUIREMENTS
Except as modified herein, the analysis and design of the work
within the scope of this Chapter shall be in accordance with
Chapter 16.
SECTION 9405
PRE-DESIGN INVESTIGATION
The engineer or architect shall prepare a predesign field inves-
tigation report in accordance with Department guidelines and
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shall file the report when the plans are filed for permit. The
plans shall include a description of the existing lateral force
resisting system at and below the base.
SECTION 9406
ANALYSIS AND DESIGN
9406.1 General. Every hillside building within the scope of
this Chapter shall be analyzed, designed, and constructed in
accordance with the following provisions.
9406.1.1 Base for seismic design defioed. The base for
seismic design is defined as follows:
Dowehill-directloe. For seismic forces acting in the
downhill-direction, the base of the building shall be
the floor at or closest to the top of the highest level of
the foundation.
1.
2. Normal to the downhill-direction. For seismic
forces acting normal to the downhill-direction, the
distribution of seismic forces over the height of the
building using Section 12.8.3 of ASCE 7 shall be
determined using the height measured from the top of
the lowest level of the building foundation. Retrofit-
ting, however, shall only be required at the
base-level-diaphragm and below.
.1.2 Design base shear. The design base shear shall be
that required at the time of the original building permit 75
percent less than currently required by Section 12.8.1 of
ASCE 7, but not less than the following:
V = 0.133 W
where:
V = The total design lateral force or shear at the base
W = The total seismic dead load defined in Section 12.7.2
of ASCE 7
9406.2 Base shear resistance in the downhill-direction.
9406.2.1 General. The base shear in the downhill-direc-
tion, including forces from the base-level-diaphragm, shall
be resisted through primary anchors from diaphragm struts
or collectors provided in the base level framing to the foun-
dation.
9406.2.2 Location of primary anchors. A primary anchor
and diaphragm strut or collector shall be provided in line
with each foundation extending in the downhill-direction.
Primary anchors and diaphragm struts or collectors shall
also be provided where interior vertical lateral force resist-
ing elements occur above and in contact with the
base-level-diaphragm.
The base-level-diaphragm shall be provided with pri-
mary anchors designed for the tributary forces spaced at a
maximum 30 feet (9145 mm) on center. Where the floor
below the base extends to the uphill foundation, and the
foundation at the base is not adequate to resist the forces
from the primary anchors, the base shear may be transferred
to that lower level and the primary anchorage made at that
lower level. The connection shall be made directly to the
foundation. The existing foundation shall be evaluated as
specified in Section 9406. 1 1 .
9406.3 Seismic forces on floor levels below the base in the
dovrahill-direction.
,1 General. All floor diaphragm connections
between floor diaphragms below the base level diaphragm
shall be designed in accordance with the provisions of this
section.
9406.3.2 Design, Each floor level below the base defined in
Section 9406.1.1 shall be designed for all tributary loads at
that level using a minimum seismic force factor not less than
the base shear coefficient.
9406.3.3 Direct connections. Each floor level shall be
directly connected to the foundation through a system of
primary anchors at that level as required for the base as spec-
ified in Section 9406.1.1.
9406.4 Secondary anchors from diaphragm to foundation
for seismic forces at and below the base in the down-
hill-direction.
9406.4.1 General. In addition to the anchors required by
Sections 9406.2 and 9406.3, the floor diaphragm for levels
at and below the base shall be anchored to the uphill founda-
tion at the level of the diaphragm, as specified in this section.
Exception: Secondary anchors are not required where:
1 . The concrete or masonry foundations in the down-
hill-direction are spaced at not more than 30 feet
(9145 mm) on center and extend up to and are
directly connected to the base-level-diaphragm for
at least 70 percent of the diaphragm depth;
2. The diaphragm is separated from the mudsill at the
uphill foundation by a cripple wall which has
anchor bolts and is braced in the plane of the wall
and constructed with studs that are no less than 12
inches (305 mm) in height and primary anchors are
spaced a maximum of 20 feet (6096 mm) on cen-
ter; or
3. The deflection of the plywood floor diaphragm
between adjacent primary anchors is calculated to
be less than V4 of an inch (6.4 mm).
9406.4.2 Diaphragm anchors. Secondary anchors
required by this section shall be provided at each level at and
below the base of the building. Diaphragm anchors shall be
fully developed into the diaphragm and be connected to the
foundation at the uphill diaphragm edge to develop the
forces required by this section.
9406.4.3 Anchor spacing. Secondary anchors required by
this section shall be uniformly distributed along the uphill
diaphragm edge and shall be spaced a maximum of four feet
(1219 mm) on center.
9406.4.4 Anchor capacity for floor diaphragms at the
base and below. Secondary anchors at the base and below
shall be designed for a uniformly distributed minimum
force equal to the total primary anchorage design force at
that level divided by the length of the uphill diaphragm
edge, but shall not be less than 300 pounds per lineal foot
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(4.37 kN/m). The existing foundation need not be checked
to resist the additional forces induced by the system of sec-
ondary anchors; however, the existing foundation shall be
evaluated as specified in Section 9406. 11.
5 Design of anchorage.
9406.5,.l General. Primary and secondary anchors, and dia-
phragm struts and collectors, shall be designed in accor-
dance with the provisions of this section.
p.5.2 Anchorage. The structure shall be anchored to the
foundation as specified in Sections 9406.2, 9406.3 and
9406.4.
j.5.3 Fasteners. All bolted fasteners used to develop
connections to wood members shall be provided with
square plate washers at all bolt heads and nuts. Washers
shall be minimum ^/jg inch (4.8 mm) thick and two inch (5 1
mm) square for Vz-inch (12.7 mm) diameter bolts, and V4
inch (6.4 mm) thick and 2-V2 inch (64 mm) square for ^/g
inch (15.9 mm) diameter or larger bolts. Nuts shall be
wrench tightened prior to covering.
1.5.4 Fastening. The diaphragm to foundation anchor-
age shall not be accomplished by the use of toe nailing, nails
subject to withdrawal, or wood in cross grain bending or
cross grain tension.
5.5,5 Size of wood members. Wood diaphragm struts,
collectors, and other wood members connected to primary
anchors shall not be less than 3-inch (76 mm) nominal width
members or doubled 2-inch (5 1 mm) nominal width mem-
bers. Fastening doubled 2-inch (51mm) nominal width
members shall be designed in accordance to the provisions
of Chapter 23. Secondary diaphragm anchors as specified in
Section 9406.4 may be developed through existing 2-inch
(51 mm) nominal width framing members. The effects of
eccentricity on wood members shall be evaluated as
required per Section 9406.5.9.
,6 Design. Primary and secondary anchorage,
including diaphragm struts, splices, and collectors shall be
designed for 125 percent of the tributary force.
.5.7 Allowable stress increase. The one-third allow-
able stress increase shall not be permitted for materials
using allowable stress design methods.
9406,5.8 Seismic load factor. Steel elements, of the dia-
phragm anchorage systems and continuity ties shall be
designed by the allowable stress design method using a load
factor of 1.7. The strength design specified in Section 1912.1
using a load factor of 2.0 in heu of 1 .4 for earthquake loading
shall be used for the design of embedment in concrete.
.5.9 Symmetry. All seismic lateral force foundation
anchorage and diaphragm strut connections shall be sym-
metrical. Eccentric connections may be permitted when
demonstrated by calculation or tests that all components of
force have been provided for in the structural analysis or
tests.
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.10.1 Primary anchors. The load path for pri-
mary anchors shall be fully developed into the dia-
phragm and into the foundation. The foundation must be
shown to be adequate to resist the concentrated loads
from the primary anchors and must be shown to comply
with the following:
1. Soil maximum bearing capacity for conventional
footings shall be limited to 3000 psf (143.7 kPa)
unless an approved geotechnical report permits
higher bearing values.
2. Conventional continuous footings shall be ana-
lyzed for uplift forces induced by primary anchors.
3. Soil capacities need not be investigated for grade
beam arid caisson or pile foundations.
4. Shear stress in grade beams and tie beams shall be
investigated for vertical component of primary
anchor forces. Unless otherwise known, a maxi-
mum 2000 psi (13.8 MPa) concrete strength shall
be assumed.
9406.5.10.2 Secondary anchors. The load path for sec-
ondary anchors need not be developed beyond the con-
nection to the foundation.
9406.5.10.3 Above base uplift forces. The load path for
uplift forces generated from above the base shall be ana-
lyzed and fully developed into the below base structural
system.
9406.6 Base shear resistance normal to the downhill-direc-
tion.
9406.6.1 General. Lateral force resisting elements acting in
the normal to the downhill-direction shall be designed in
accordance with the requirements of following Sections.
9406.6.2 Base shear. The design base shear shall be 75%
less than currently required by Section 12.8.1 of ASCE 7,
but not less than the following :
V = 0.133 W
where:
V = The total design lateral force or shear at the base
W = The total seismic dead load defined in Section 12.7.2
of ASCE 7 ,
9406.6.3 Vertical distribution of seismic forces. The dis-
tribution of seismic forces acting normal to the down-
hill-direction shall be determined using Section 12.8.3 of
ASCE 7. The height of the structure in Equation (12.8-12)
of Section 12.8.3 of ASCE 7 shall be taken from the base,
which shall be measured from the top of the lowest level of
the building foundation.
9406.6.4 Drift limitations. The interstory drift below the
base-level-diaphragm shall not exceed 0.005 times the story
height. The total drift from the base-level-diaphragm to the
top of the foundation shall not exceed V4 inch (19 mm).
Where the story height or the height from the
base-level-diaphragm to the top of the foundation varies
because of a stepped footing or story offset, the height shall
be measured from the average height of the top of the foun-
dation. The calculated story drift shall not be reduced by the
effect of horizontal diaphragm stiffness.
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9406.7 Lateral force resisting systems at the base and below
in the downhill-direction.
9406.7.1 General. As an alternative to providing primary
anchor connections from diaphragms to foundation in the
downhill-direction, the following systems may be used,
provided their location and spacing is maintained as speci-
fied in Section 9406.2.2 for primary anchors.
9406.7.2 Wood shear walls. Wood structural panels or
existing wood diagonal sheathed shear walls may be used
provided:
1 . The minimum length of shear wall shall be eight feet
(2438 mm).
2. The minimum level length between steps in the shear
wall sill shall be eight feet (2438 mm) and the maxi-
mum step height between adjacent sills shall be 2 feet
8 inches (813 mm).
3. Sill plates do not slope and they bear on a level sur-
face.
4. The design lateral forces shall be distributed to lateral
force resisting elements of varying heights in accor-
dance with the stiffness of each individual element.
The stiffness of a stepped wood structural panel shear
wall may be determined by dividing the wall into
adjacent rectangular elements, subject to the same top
of wall deflection. Deflections of shear walls may be
estimated by Sections 2305.3.2 and 2305.3.8.2.9 or
other equivalent methods. Sheathing and fastening
requirements for the stiffest section shall be used for
the entire wall. Each section of wall shall be anchored
for shear and uplift at each step as an independent
shear wall.
5. Actual configuration of steps shall be determined in
the field at the time of predesign investigation.
6. The drift limitations of Section 9406.6.4 are not
exceeded.
9406.7.3 Braced frames. Structural steel braced frames
with concentric connections may be used as part of the lat-
eral force resisting system. All members in braced frames
shall be designed to resist tension and compression forces.
Seismic forces shall not induce flexural stresses in any
member of the frame, in diaphragm struts, or in the collec-
tors. Where existing anchor bolts are used for anchorage,
existing confinement shall be verified and additional con-
finement provided where necessary. When the braced frame
is not rectangular, distribution of forces to members shall
account for the variations in slope.
9406.7.4 Rod-braced frames and diaphragms. Existing
tension only braces may be used provided they resist five
times the design force, and the connections have the capac-
ity to resist the yield strength of the braces. Tension braces
and their connections shall be exposed for evaluation. Exist-
ing anchor bolts shall be tested in shear and tension to five
times the design force.
9406.7.5 Cement plaster and lath and gypsum wall-
board. The sheathing materials listed in Chapter 25 are not
permitted to resist seismic lateral forces below the
base-level-diaphragm.
9406.8 Lateral force resisting systems at the hase and below
and normal to the downhill-direction. Lateral force resisting
systems acting normal to the downhill-direction may include
steel moment frames and those systems permitted under Sec-
tion 9406.7, provided the drift limitations of Section 9406.6 are
not exceeded.
9406.9 Diaphragms.
9406.9.1 General. Diaphragms at the base and below may
be of straight 1-inch by 6-inch (25 mm by 152 mm) or
2-inch by 6-inch (51 mm by 152 mm) sheathing, provided
vertical lateral force resisting elements in the down-
hill-direction or primary anchors are spaced no more than
20 feet (6096 mm) apart and the diaphragm sheai- forces do
not exceed 100 plf (1.46 kN/m).
9406.9.2 Existing diaphragms. Existing plywood and
diagonally sheathed diaphragms need not be investigated.
9406.9.3 Existing cantilevered diaphragms. Existing can-
tilevered wood diaphragms are acceptable provided they do
not cantilever more than one-half the diaphragm backspan
(anchor span).
9406.9.4 Wood diaphragm rotation. Diaphragm rotation
is not permitted in resisting lateral forces.
9406.10 Steel beam to column connections.
9406.10.1 General. All steel beam to column connections
shall be braced at supports and locations of concentrated
loads. The beam to column connection shall be designed to
prevent rotation of the beam.
9406.10.2 Steel beams. Steel beams shall have stiffener
plates installed on each side of the beam web at the column
supports and points of concentrated load. The stiffener
plates shall be welded to each beam flange and beam web.
This requirement applies at the base and below and only to
those connections which are part of the lateral load resisting
system or lateral load path.
9406.10.3 Column bracing. All single length multi-level
height columns shall be braced in each orthogonal direction
at each diaphragm level.
9406.11 Foundations.
9406.11.1 Existing foundations. Foundation soundness
shall be verified by the engineer or architect. Foundation
types such as unreinforced masonry, stone and ungrouted
concrete block and unreinforced concrete shall be retrofit-
ted to resist lateral loads applied through the diaphragm
anchors.
9406.11.2 Damaged foundations. Damaged foundations
shall be evaluated by the engineer or architect. Cracks in
excess of 7g inch (3.2 mm) or differential displacement in
excess of V4 inch (6.4 mm) shall be further investigated and
repaired where necessary. Specifications for the restoration
of the earth to wood separation shall be included and be
made a part of the plans.
9406.11.3 Stud wall attachment. Shot pinned anchors
shall not be used to resist lateral forces. Lateral force resist-
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2008 CITY OF LOS ANGELES BUILDING CODE
VOLUNTARY-EARTHQUAKE HAZARD REDUCTION IN EXISTING HILLSIDE BUILDINGS
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ing systems which utiUze shot pins shall be retrofitted with
approved drilled anchors.
9406.11.4 Existing framing connections. Deteriorated
framing and connections shall be repaired or replaced.
9406.11.5 Metal connectors. Metal connectors shall not be
in contact with, or below earth unless the connectors are hot
dipped galvanized and further protected from earth with
four inches of concrete.
9406.12 Existing materials. ■
9406.12.1 Allowable stresses. Existing materials may be
used as part of the lateral load-resisting system provided
that the stresses in these materials do not exceed the values
shown in Table 94- A.
SECTION 9407
HISTORICAL BUILDINGS
Qualified historical buildings. Shall be allowed to use
alternate building regulations or deviations from this Chapter
in order to preserve their original or restored architectural ele-
ments and features. See Section 8119 for these standards.
SECTION 9408
QUALITY CONTROL
.1 General. All hillside building construction shall com-
ply with the requirements specified in this section.
L2 Department called inspections. All anchors installed
in accordance with Sections 9406.2, 9406.3 and 9406.4 shall
be inspected by the Department prior to installation of any con-
struction which might restrict access to the anchors or prevent a
visual inspection from the floor level above the anchors.
13 Structural observation by the engineer or architect
of record. The owner shall employ the engineer or architect of
record, or other engineer or architect designated by the engi-
neer or architect of record, to perform structural observations
as required by Section 1709.
iA Anchor installation. No installed anchor shall be cov-
ered prior to all required Department framing inspections and
structural observation by the architect or engineer.
SECTION 9409
INFORMATION REQUIRED ON PLANS
9409.1 General. The licensed engineer or architect responsi-
ble for the seismic analysis of the building shall record the
information required by this section on the approved plans. The
plans shall accurately reflect the results of the engineering
investigation and design and show all pertinent dimensions and
sizes for plan review and construction. The plans shall show
existing framing construction, diaphragm construction, pro-
posed primary, alternate and secondary anchors, proposed
shear walls and collectors for the base and below. All structural
elements that are part of the design including existing nailing,
anchors, ties, and collectors, shall be shown on the plans. The
plans shall indicate existing construction that has not been
exposed and needs verification at the time of construction.
9409.2 Building elevations. Elevations showing the existing
conditions shall be drawn to scale. Elevations shall show roof
and floor heights, dimensions of openings, location and extent
of existing damage, and proposed repair and strengthening.
9409.3 Shear walls. Plans shall include all information perti-
nent to shear walls, including typical wall panel thickness,
length, and the location and size of all anchors:
9409.4 Details. Details shall include the existing lateral brac-
ing systems to be utilized including work required for the lat-
eral and vertical load systems and new anchors and the method
of development of anchor forces into the diaphragm framing.
9409.5 Engineer's or architect's statement. The responsible
engineer or architect shall state on the approved plans the fol-
lowing:
1 . "I am responsible for designing the strengthening for this
building's base level and below in compliance with the
minimum regulations of Chapter 94 of the Los Angeles
Building Code; and either I or someone under my
responsible charge has performed the pre-design investi-
gation."
or when applicable:
2. "The Registered Deputy Inspector, required as a condi-
tion of the use of structural design stresses requiring con-
tinuous inspection, will be responsible to me as required
by Section 1704 of the Los Angeles Building Code."
TABLE 94-A
VALUES FOR EXISTING MATERIALS
EXISTING MATERIALS OR CONFIGURATION OF MATERIALS^
ALLOWABLE VALUES
1 . Plain or reinforced concrete footings
f\ = 2000 psi (13.8 MPa) unless otherwise shown by tests.
2. Douglas fir wood
Allowable stress same as No. 2 D.F.
3. Reinforcing steel
X = 0.4 F„ maximum 16 ksi (1 10 MPa).
4. Structural steel
fh = 0.6 F„ maximum 22 ksi (152 MPa).
5. Anchor bolts
Current code values.
6. Wood structural panels/diagonal sheathing
Current code values.
1. Material must be sound and in good condition.
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2008 CITY OF LOS ANGELES BUILDING CODE
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CHAPTER 95
VOLUNTARY-EARTHQUAKE HAZARD REDUCTION IN EXISTING
REINFORCED CONCRETE BUILDINGS AND CONCRETE FRAME
BUILDINGS WITH MASONRY FILL
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SECTION 9501
PURPOSE
The purpose of this Chapter is to promote public safety and wel-
fare by reducing the risk of death or injury that may result from
the effects of earthquakes on concrete buildings and concrete
frame buildings with masonry infills. The Northridge Earth-
quake caused widespread damage to these buildings, including
some collapses. The recent Great Hanshin Earthquake in Kobe,
Japan also caused collapse or partial collapse to several hundred
of these buildings. These nonductile concrete buildings are fre-
quently used in Los Angeles for department stores, office build-
ings, hotels, parking structures and apartment houses. The
performance of these structures in an earthquake is essential to
the life-safety of their occupants and to significantly reduce the
amount of building damage. This Chapter provides voluntary
retrofit standards that, when fully followed, will substantially
improve the seismic performance of these buildings but will not
necessarily prevent all earthquake damage.
SECTION 9502
SCOPE
The provisions of this Chapter may be applied to all buildings
designed under building codes in effect prior to January 13,
1976, or built with building permits issued prior to January 13,
1977, having concrete floors and/or concrete roofs supported
by reinforced concrete walls or concrete frames and columns,
and/or concrete frames with masonry infills.
SECTION 9503
DEFINITIONS
For purposes of this Chapter, the applicable definitions and
notations in Sections 1602, 1613.2 and 1902 and the following
shall apply:
MASONRY INFILL. The unreinforced or reinforced
masonry wall construction within a reinforced concrete frame.
SECTION 9504
RESERVED
SECTION 9505
GENERAL REQUIREMENTS
When the owner of each building within the scope of this Chap-
ter causes an investigation of the existing construction, a struc-
tural analysis shall be made of the building by a structural
engineer licensed by the State of California.
Exception: Regular concrete shear wall buildings, of four
stories in height and under, may be shown to be in confor-
mance with this Chapter by filing a report signed by a
licensed architect, civil or structural engineer containing the
information specified in Section 9512.
SECTION 9508
CRITERIA SELECTION
9508.1 Basis for analysis. The building shall be analyzed to
determine the displacements caused by inertial force effects
determined in accordance with the dynamic lateral analysis
procedure of Section 9509. The building structural system
shall provide a complete load path for resisting the effects of
seismic loading. The capacity of all parts of the structural sys-
tem shall exceed the demand calculated by the dynamic analy-
sis using the effective stiffnesses determined by a nonlinear
analysis of the elements.
Exception: Buildings conforming to the requirements of
Sections 9508.4.2 and 9508.4.3 may be analyzed using the
procedure specified in Sections 95 10 and 95 1 1 , respectively.
9508.2 Site geology and soil characteristics. In the absence of
a soils investigation, the soil site class shall be taken as Type D.
9508.3 Configuration requirements.
9508.3.1 General. Each structure shall be designated as
structurally regular or irregular.
9508.3.2 Regular structures. Regular structures have no
significant physical discontinuities in plan or vertical con-
figuration or in their lateral force-resisting systems such as
the irregular features described below.
9508.3.3 Irregular structures.
9508.3.3.1 Irregular structures have significant physical
discontinuities in configuration or in their lateral
force-resisting systems. Irregular features include, but
are not limited to, those described in Tables 12.3-1 and
I2.3-2ofASCE7.
9508.3.3.2 Structures having one or more of the features
listed in Table 12.3-2 of ASCE 7 shall be designated as
having a vertical irregularity.
Exception: Where none of the story drift ratios under
equivalent lateral forces is greater than 1.3 times the
story drift ratio of the story above, the structure may be
deemed to not have the structural irregularities of Type
1 or 2 listed in Table 12.3-2 of ASCE 7. The story drift
for this determination shall be calculated including tor-
sional effects.
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2008 CITY OF LOS ANGELES BUILDING CODE
733
VOLUNTARY-EARTHQUAKE HAZARD REDUCTION IN EXISTING REINFORCED CONCRETE BUILDINGS
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9508.3.33 Structures having one or more of the features
listed in Table 12.3-1 of ASCE 7 shall be designated as
having a plan irregularity.
9508.3.3.4 Irregular structures conforming to the
requirements of Sections 9508.4 and 9511 may be con-
sidered regular if the plan and vertical irregularities are
removed by the addition of lateral load resisting systems.
9508.4 Selection of lateral analysis procedure.
9508.4.1 General. Any structure may be analyzed using the
dynamic lateral analysis procedures of Section 9509. The
equivalent lateral force procedure or the simplified analysis
may be used for structures conforming to the requirements
on the use of those analyses.
9508.4.2 Equivalent lateral force. The equivalent lateral
force procedure of Section 9510 may be used for regular
structures or irregular stmctures having plan irregularity
only of not more than four stories.
9508.4.3 Simplified analysis. Regular structures of not
more than four stories conforming to the requirements of
Section 95 1 1 may be analyzed for a prescribed strength of
their systems and elements.
9508.5 Alternative procedures.
9508.5.1 General. Alternative lateral analysis procedures
using rational analyses based on well-established principles
of mechanics may be used in lieu of those prescribed in this
Chapter when approved by the Superintendent of Building.
9508.5.2 Seismic isolation. Seismic isolation (using Chapter
17 of ASCE 7, Seismic Design Requirements For Seismi-
cally Isolated Structures), energy dissipation and damping
systems may be used to reduce story drift when approved by
the Superintendent of Building. The isolated structure shall
comply with the drift requirements of Section 9509.
SECTION 9509
DYNAIVIIC LATERAL ANALYSIS PROCEDURE
9509.1 General. Structures shall be analyzed for seismic forces
acting concurrently on the orthogonal axes of the structure. The
effects of the loading on two ortljogonal axes shall be combined
by the square root of the sum of the squares (SRSS) methods.
9509.2 Ground motion. The seismic ground motion values
shall be determined in accordance with ASCE 7 and may be
one of the following:
1. The elastic design response spectrum shall be 75 percent
of the response spectrum described in Section 1 1 .4.5 of
ASCE 7.
2. A site-specific response spectrum shall be 75 percent of
the site- specific response spectrum described in Section
11.4.7 of ASCE 7.
9509.3 Mathematical model. The three-dimensional mathe-
matical model of the physical structure shall represent the spatial
distribution of mass and stiffness of the structure to an extent that
is adequate for the calculation of the significant features of its
dynamic response. All concrete and masonry elements shall be
included in the model of the physical structure.
Exception: Concrete or masonry partitions that are ade-
quately isolated from the concrete frame members and the
floor above.
Cast-in-place reinforced concrete floors with span-to-depth
ratios less than 3:1 may be assumed to be rigid diaphragms.
Other floors, including floors constructed of precast elements
with or without a reinforced concrete topping, shall be ana-
lyzed in conformance with Section 12.3.1.3 of ASCE 7 to
determine if they must be considered as flexible diaphragms.
The effective in-plane stiffness of the diaphragm, including
effects of cracking and discontinuity between precast elements
shall be considered. Ramps that interconnect floor levels shall
be modeled as having mass appropriately distributed on that
element. The lateral stiffness of the ramp may be calculated as
having properties based on the uncracked cross section of the
slab exclusive of beams and girders.
9509.4 Effective stiffness.
9509.4.1 General. The effective stiffness of concrete and
masonry elements or systems shall be calculated as the
secant stiffness of the element or system with due consider-
ation of the effects of tensile cracking and compression
strain. The secant stiffness shall be taken from the force-dis-
placement relationship of the element or system. The secant
stiffness shall be measured as the slope from the origin to the
intersection of the force-displacement relationship at the
assumed displacement. The force-displacement relation-
ship shall be determined by a nonlinear analysis. The
force-displacement analysis shall include the calculation of
the displacement at which strength degradation begins.
Exception: The initial effective moment of inertia of
beams and columns in shear wall or infilled frame build-
ings may be estimated using Table 95-D. The ratio of
effective moment of inertia used for the beams and for
the columns shall be verified by Formula (9-1), (9-2) and
(9-3). The estimates shall be revised if the ratio used
exceeds the ratio calculated by more than 20 percent.
I +
where:
M„ =
frK
and:
(Formula 9-1)
(Formula 9-2)
9509.4.2 Infills. The effective stiffness of an infill shall be
determined from a nonlinear analysis of the infill and the
confining frame. The effect of the infill on the stiffness of
the system shall be determined by differencing the
force-displacement relationship of the frame-infill system
from the frame-only system.
9509.4.3 Model of infill. The mathematical model of an
infilled frame structure shall include the stiffness effects of
the infill as a pair of diagonals in the bays of the frame. The
diagonals shall be considered as having concrete properties
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VOLUNTARY-EARTHQUAKE HAZARD REDUCTION IN EXISTING REINFORCED CONCRETE BUILDINGS
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and only axial loads. Their lines of action shall intersect the
beam-column joints. The secant stiffness of the force-dis-
placement relationship, calculated as prescribed in Section
9509.4.2, shall be used to determine the effective area of the
diagonals. The effective stiffness of the frame shall be deter-
mined as specified in Section 9509.4.1. Other procedures
that provide the same effective stiffness for the combination
of infill and frame may be used when approved by the
Superintendent of Building.
9509.4.4 Effective stiffness of elements and systems. The
effective stiffnesses shall be determined by an iterative
method. The mathematical model using assumed effective
stiffnesses shall be used to calculate dynamic displace-
ments. The effective stiffness of all concrete and rhasonry
elements shall be modified to represent the secant stiffness
obtained from the nonlinear force-displacement analysis of
the element or system at the calculated displacement. A
re-analysis of the mathematical model shall be made using
the adjusted effective stiffness of existing and supplemental
elements and systems until closure of the iterative process is
obtained. A difference of 10 percent from the effective stiff-
ness used and that recalculated may be assumed to be clo-
sure of the iterative process.
9509.5 Description of analysis procedures.
9509.5.1 Response spectrum analysis. Response spec-
trum analysis is an elastic dynamic analysis of a structure
utilizing the peak dynamic response of all modes having a
significant contribution to total structural response. Peak
modal responses are calculated using the ordinates of the
appropriate response spectrum curve which correspond to
the modal periods. Maximum modal contributions are com-
bined in a statistical manner to obtain an approximate total
structural response.
9509.5.2 Number of modes. The requirement of Section
9509.5.1 may be satisfied by demonstrating that for the
modes considered, at least 90 percent of the participating
mass of the structure is included in the calculation of
response for each principal horizontal direction.
9509.5.3 Combining modes. The peak displacements for
each mode shall be combined by recognized methods.
Modal interaction effects of three-dimensional models shall
be considered when combining modal maxima.
9509.5.4 Torsion. The three-dimensional analysis shall be
considered as including all torsional effects including acci-
dental torsional effects.
9509.6 Material characteristics. The stress-strain relation-
ship of concrete, masonry and reinforcement shall be deter-
mined by testing or from published data. The procedure for
testing and determination of stress-strain values shall be as pre-
scribed in one of the following:
A. Concrete. The compressive strength of existing concrete
shall be determined by tests> on cores sampled from the
structure or may be taken from information given on the
construction documents and confirmed by limited testing. A
default value of horizontal shear stress may be used in Sec-
tion 951 1.5.1 without testing of the compressive strength of
the existing concrete.
1. The cutting of cores shall not significantly reduce the
strength of the existing structure. Cores shall not be
taken in columns. Existing reinforcement shall not be
cut.
2. If the construction documents do not specify a mini-
mum compressive strength of the classes of concrete,
five cores per story, with a minimum of ten cores,
shall be obtained for testing.
Exception: If the coefficient of variation of the
compressive strength does not exceed 15 percent,
the number of cores per story may be reduced to
two and the minimum number of tests reduced to
five.
3. When the construction documents specify a mini-
mum compressive strength, two cores per story, per
class of concrete, shall be taken in the areas where that
concrete was to be placed. A minimum of five cores
shall be obtained for testing. If a higher strength of
concrete was specified for columns than the remain-
der of the concrete, cores taken in the beams for veri-
fication of the specified strength of the beams, shall
be substituted for tests in the columns. The strength
specified for columns may be used in the analyses if
the specified compressive strength in the beams is
verified.
4. The sampling for the concrete strength tests shall be
distributed uniformly in each story. If the building has
shear walls, a minimum of 50 percent of the cores
shall be taken from the shear walls. Not more than 25
percent of the required cores shall be taken in floor
and roof slabs. The remainder of cores may be taken
from the center of beams at mid-span. In concrete
frame buildings, 75 percent of the cores shall be taken
from the beams.
5. The mean value of the compressive stresses obtained
from the core testing for each class of concrete shall
be used in the analyses. Values of peak strain that is
associated with peak compressive stress may be taken
from published data for the nonlinear analyses of
reinforced concrete elements.
B. Solid grouted reinforced masonry. The compressive
strength of solid grouted concrete block or brick masonry
may be taken as 2000 psi (13.8 MPa). The strain associated
with peak stress may be taken as 0.0025.
C. Partially grouted masonry. A minimum of five units
shall be removed from the walls and tested in conformance
with ASTM C 140. Compressive strength of the masonry
may be determined in accordance with Section 2105.2.2,
assuming Type S mortar. The strain associated with peak
stress may be taken as 0.0025.
D. Unreinforced masonry.
1 . The stress-strain relationship of existing unreinforced
masonry shall be determined by in-place cyclic test-
ing. The test procedure shall conform to Section
9513.
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2008 CITY OF LOS ANGELES BUILDING CODE
735
VOLUNTARY-EARTHQUAKE HAZARD REDUCTION IN EXISTING REINFORCED CONCRETE BUILDINGS
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2. One stress-strain test per story and a minimum of five
tests shall be made in the unreinforced masonry
infills. The location of the tests shall be uniformly dis-
tributed throughout the building.
3. The average values of the stress-strain values
obtained from testing shall be used in the nonlinear
analyses of frame-infill assemblies or in the calcula-
tion of the effective diagonal brace that is used in the
simplified analysis procedure of Section 95 11 .
E. Reinforcement. The yield stress of each type of new or
existing reinforcement shall be taken from Table 95-E
unless the reinforcement is sampled and tested for yield
stress. The axial reinforcement in columns of post- 1933
buildings shall be assumed to be hard grade unless noted
otherwise on the construction documents.
F. Comtjinatiom of concrete and masonry materials.
Combinations of masonry and concrete infills shall be
assumed to have equal strain. The secant moduli at peak
stress of the masonry and concrete shall be used to deter-
mine the effective transformed area of the composite mate-
rial.
9509.7 Story drift limitation.
9509.7.1 Definition. Story drift is the displacement of one
level relative to the level above or below calculated by the
response spectrum analysis using the appropriate effective
stiffness.
9509.7.2 Limitation. The story drift is limited to that dis-
placement that causes any of the following effects:
1 . Compressive strain of 0.003 in the frame confining
infill or in a shear wall.
2. Compressive strain of 0.004 in a reinforced concrete
column unless the engineer can show by published
experimental research that the existing confinement
reinforcement justifies higher values of strain.
3. Peak strain in masonry infills as determined by exper-
imental data or by physical testing as prescribed in
Section 9513.
4. Displacement that was calculated by the nonlinear
analysis as when strength degradation of any element
began.
Exception: Item 4 may be taken as the displace-
ment that causes a strength degradation in that line
of resistance equal to 10 percent of the sum of the
strength of the elements in that line of resistance.
5. A story drift of 0.015 using the dynamic analysis proce-
dure or the forces specified in Section 95 10. This limita-
tion shall not supersede the limitations of Items 1-4.
9509.8 Compressive strain determination.
9509.8.1 General. The compressive strain in columns,
shear walls and infills may be determined by the nonlinear
analysis or a procedure that assumes plane sections remain
plane.
9509.8.2 Axial and fiexural loading. The compressive
strain shall be determined for combined flexure and axial
loading. The flexural moments shall be taken from the
response spectrum model for frame or sheai* wall buildings,
and from the substructure model for infill frames. The axial
loads shall have the following combination of effects, where
L is unreduced live load:
•
U=1.0D + 0.3L=1.0E
U = 0.9D-l.0E
(Formula 9-4)
(Formula 9-5)
9509.9 Shear strength limitation. The required in-plane shear
strength of all columns, piers and shear walls shall be the shear
associated with the moments induced at the ends of columns or
piers and at the base of shear walls by the story displacements.
No strength reduction factors shall be used in the determination
of strength.
SECTION 9510
EQUIVALENT LATERAL FORCE PROCEDURE
9510.1 General. Structures shall be analyzed for prescribed
forces acting concurrently on the orthogonal axes of the build-
ing. The effects of the loading on the two orthogonal axes shall
be combined as required by Section 9509.1.
9510.2 Base shear for analysis. The base shear used to deter-
mine story drifts shall be determined using 75 percent of that
currently required by Section 12.8.1 of the ASCE 7.
where:
R = 1 .4 for concrete frame buildings with masonry infill
and all other reinforced concrete buildings.
Exception: R = 1.0 for single story buildings.
The 7? value in Table 12.2-1 of ASCE 7 for new building
design shall not be used for story drift determination.
9510.3 Structure period. The fundamental period of the struc-
ture, T, in the direction under consideration can be calculated
by Equation 12.8-7 of ASCE 7 or using the structural proper-
ties and deformational characteristics of the resisting elements
in a properly substantiated analysis without subject to the limi-
tations established by Table 12.8-1 of ASCE 7.
9510.4 Vertical distribution of forces. The base shear shall be
distributed over the height of the structure in conformance with
Formula (10-1).
C,, =
X X
(Formula 10-1)
Iw,/zf
where:
C^^ = vertical distribution factor to be applied to V to obtain
the story force at level x.
k = an exponent related to building period as follows:
For buildings having a period of 0.5 seconds or less, ^= 1 .0
For buildings having a period of 2.5 seconds or more, A: = 2.0
For buildings having a period between 0.5 and 2.5 seconds, k
may be taken as two or determined by linear interpolation
between one and two.
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2008 CITY OF LOS ANGELES BUILDING CODE
VOLUNTARY-EARTHQUAKE HAZARD REDUCTION IN EXISTING REINFORCED CONCRETE BUILDINGS
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9510.5 Horizontal distribution of shear. The effective stiff-
ness of elements shall be used for the horizontal distribution of
shear.
9510.6 Horizontal torsional moments. Provision shall be
made for increased displacements resulting from horizontal
torsion. The effects of torsional moments shall be included in
the determination of the effective stiffness of elements and sys-
tems. Reinforced concrete floors may be considered as rigid
diaphragms.
9510.7 Effective stiffness. The effective stiffness of concrete
and masonry elements shall be determined as prescribed in
Section 9509.4.
9510.8 Material characteristics. Material characteristics
shall be determined as prescribed in Section 9509.6.
9510.9 Story drift limitations. Story drift limits shall be as
prescribed in Section 9509.7.
9510.10 Compressive strain determination. Compressive
strain shall be determined as prescribed in Section 9509.8.
9510.11 Shear strength limitation. The in-plane shear
strength shall equal or exceed the shear forces determined as
prescribed in Section 9509.9.
SECTION 9511
SIMPLIFIED ANALYSIS PROCEDURE
9511.1 General. Structures conforming to the requirements of
this section may be analyzed for having a required strength by a
simplified analysis procedure.
9511.2 Required features of the building. The building shall
conform to all of the following features, or the building shall be
analyzed by the Equivalent Lateral Force procedure or the
Dynamic Lateral Force procedure as prescribed by Section
9508.4 of this Code.
1. The lateral resisting elements of the building shall be
reinforced concrete shear walls or frames with. solid
masonry infills and infills which have openings in the
masonry infills not exceeding 10 percent of the gross
area of the infill panel which has the opening(s).
2. The effective shear area of reinforced concrete shear
walls on each orthogonal axis shall be calculated by
passing a horizontal plane through each story level. The
height of the plane shall be that height where the area of
the shear walls is a minimum.
3. The reinforced concrete elements shall have no visible
deterioration of concrete or reinforcement.
4. The vertical elements in the lateral-load resisting system
shall not have significant strength discontinuities; the
story strength in any story shall not be less than 90 per-
cent of the strength of the story above.
5. The lateral-force resisting elements in all story levels
shall form a system that is not subject to significant tor-
sion. Significant torsion is the condition where the dis-
tance between the story center of rigidity and the story
center of mass is greater than 20 percent of the width of
the structiire in the corresponding plan dimension.
6. The minimum ratio of area of reinforcement to gross area
of wall in existing reinforced concrete shear walls shall
be 0.0015 in both the vertical and horizontal direction or
the minimum ratio of axial reinforcement in the columns
of frames containing infills shall be 0.01.
7. The ratio of total height to base length of cantilevered or
coupled shear walls shall be two or less. The ratio of clear
height to in-plane depth of piers in a shear wall shall be
two or less. Shear walls or piers having a height to
in-plane depth ratio greater than two shall be given an
effective shear area of one-half of their area.
8. All concrete frames with infilled panels conforming to
Item 1 above shall have total height to base length ratios
of two to one or less.
9511.3 Analysis procedure.
9511.3.1 General. Supplemental elements may be added to
the existing building to bring the structure into conformance
with Section 9511.2.
9511.3.2 Seismic loading. The seismic loading shall be cal-
culated by Section 9510.2. The loading of each story level
shall be calculated Formula (10-1) of Section 9510.4.
9511.3.3 Relative rigidities. The relative rigidity of rein-
forced concrete shear walls may be based on the stiffness of
uncracked sections. The relative rigidity of infill panels may
be calculated using a common modulus of elasticity. Use of
a combination of infills and reinforced concrete or masonry
shear walls on any orthogonal axis is prohibited.
9511.3.4 Required calculations. The calculations may be
limited to computation of loads on the reinforced concrete
shear walls or infilled frame panels that comply with Sec-
tion 951 1.2 and computation of the drag and tie forces that
develop a complete load path. The loads shall include tor-
sional effects.
9511.4 Required strength of systems and elements.
9511.4.1 The capacity of all parts of the structure shall
exceed the demand calculated by use of the loading speci-
fied in Section 9510.
9511.4.2 The strength of infilled frame systems used for lat-
eral-load resistance in this section shall be calculated using
only the infilled frames that conform to Item 1 of Section
9511.2.
9511.5 Shear stress limit.
9511.5.1 The maximum horizontal shear stress in new and
existing reinforced concrete shear walls shall not exceed .
For the purpose of this Chapter, the horizontal shear stress
may be taken as 80 psi (552 kPa) without testing as required
by Item A of Section 9509.6.
9511.5.2 The in-plane shear stress in any masonry infilled
panel shall not exceed 30 psi (207 kPa). The calculation of
shear stresses shall use net section area and only the area of
the infilled masonry.
Exception: The in-plane strength of an infill panel
without openings may be calculated by procedures
described in published research that were verified by
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2008 CITY OF LOS ANGELES BUILDING CODE
737
VOLUNTARY-EARTHQUAKE HAZARD REDUCTION IN EXISTING REINFORCED CONCRETE BUILDINGS
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experimental testing and approved by the Superinten-
dent of Building.
SECTION 95112
lEQUIREyENTS FOR
9512.1 Structures conforming to the requirements of this sec-
tion may be shown to be in conformance with this Chapter by
submission of the report described in this section.
9512.2 Mequired features of the biiilding. The building shall
conform to all of the following features, or the building shall be
analyzed as prescribed by Section 9508.4 of this Code.
1 . The lateral load resisting elements of the building shall
be reinforced concrete shear walls.
2. The minimum ratio of area of reinforcement to gross area
of the wall shall be 0.0015 in both the vertical arid hori-
zontal directions.
3. The reinforced concrete elements shall have no visible
deterioration of concrete or reinforcement.
4. The area of concrete shear walls on each orthogonal axis
at the first floor level shall be 1 .5n percent of the area of
the first floor of the building, where n is the number of
floor and roof levels.
5. The area of the shear walls in all stories above the first
floor shall not be more than 100 percent or less than 80
percent of the area of shear walls at the first floor.
6. The concrete shear walls in all stories above the first
floor shall be directly above the shear walls at the first
floor which are used to calculate the percent of shear wall
area to floor area.
7. The wall area must be uniformly distributed such that at
least 80 percent of the wall area used in the calculation is
symmetrically placed about the center of the building.
8. The area of the shear walls on each orthogonal axis shall
be calculated by passing a horizontal plane through the
first story level. The height of the plane shall be that
height where the area of the shear walls is a minimum.
9. The ratio of total height to base width of cantilevered or
coupled shear walls shall be two or less. The ratio of the
clear height to inplane depth of piers in a shear wall shall
be two or less. Shear walls or piers having a height to
depth ratio greater than two shall be given an effective
area of one-half of their area.
9512.3 Irformatioin reqeired in .the report.
9512.3.1 The report shall include data, sketches, plans and
calculations that show conformance with the features given
in this section.
9512.3.2 The engineer shall meet with the representative of
the Department at the site to review the report.
SECTION 9513
DETERMINATION OF THE STRESS-STRAIN
RELATIONSHIP OF EXISTING UNREINFORCEO
MASONRY
9513.1 Scope, This section covers procedures for determining
the expected compressive modulus, peak strain and peak com-
pressive stress of unreinforced brick masonry used for infills in
frame buildings.
9513.2 General procedure. The outer wythe of multiple
wythe brick masonry shall be tested by inserting two flat jacks
into the mortar joints of the outer wythe. The prism height, the
vertical distance between the flat jacks, shall be five bricks
high. The test location shall have adequate overburden and/or
vertical confinement to resist the flat jack forces.
9513.3 Preparation for the test. Remove a mortar joint at the
top and bottom of the test prism by saw cutting or drilling and
grinding to a smooth surface. The cuts for inserting the flat
jacks shall not have a deviation from parallel of more than 3/8
inch (9.53 mm) The deviation from parallel shall be measured
at the ends of the flat jacks. The width of the saw cut shall not
exceed the width of the mortar joint. The length of the saw cut
on the face of the wall may exceed the length of the flat jacks by
not more than twice the thickness of the outer wytlie plus one
inch (25.4 mm).
9513.4 Required equipment. The flat jacks shall be rectangu-
lar or with semi-circular ends to mimic the radius of the saw
blade used to cut the slot for the flat jack. The length of the flat
jack shall be 18 inches (457 mm) maximum and 16 inches (406
mm) minimum. This length shall be measured on longest edge
of a flat jack with semi-circular ends. The maximum width of
the flat jack shall not exceed the average width of the wythe of
brick that is loaded. The minimum width of a flat jack shall be
372 inches (89 mm) measured out-to-out of the flat jack. The
flat jack shall have a minimum of two ports to allow air in the
flat jack to be replaced by hydraulic fluid. The unused port
shall be sealed after all of the air is forced out of the flat jack.
The thickness of the flat jack shall not exceed three-quarters of
the minimum height of the mortar joint. It is recommended that
the height of the flat jack be about one-half of the width of the
slot cut for installation of the flat jack. The remaining space can
be filled with steel shim plates having plan dimensions equal to
the flat jack.
9513.5 Data acquisition equipment. The strain in the tested
prism shall be recorded by gages or similar recording equip-
ment having a minimum range of one-ten thousandth of an inch
(0.0025 mm). The compressive strain shall be measured on the
surface of the prism and shall have a gage length, measured ver-
tically on the face of the prism, of 10 inches (254 mm) mini-
mum. The gage points shall be fixed to the wall by
drilled-in-anchors or by anchors set in epoxy or similar mate-
rial. The support for the data recording apparatus shall be iso-
lated from the wall by a minimum of 7,6 inch (1.5 mm) so that
the gage length used in the calculation of strain can be taken as
the measured length between the anchors of the equipment
supports. The gaging equipment shall be as close to the face of
the prism as possible to minimize the probability of erroneous
strain measurements caused by bulging of the prism outward
from its original plane.
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2008 CITY OF LOS ANGELES BU1LID8NG CODE
VOLUNTARY-EARTHQUAKE HAZARD REDUCTION IN EXISTING REINFORCED CONCRETE BUILDINGS
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The compressive strain data shall be measured at a minimum
of two points on the vertical face of the prism. These points
shall be the one- third points of the length of the flat jacks plus
or minus V2 inch. As an alternative, the strain may be measured
at three points on the face of the prism.
These points shall be spaced at one-quarter of the flat jack
length plus or minus V2 inch.
Horizontal gages at mid-height of the prism may be used to
record Poisson strain but this gage should be considered as
recording data secondary in importance to the vertical gages
and its placement shall not interfere with placing the vertical
gaging as close as possible to the face of the prism.
9513.6 Loading and recording data. The loading ishall be
applied by hydraulic pumps that add hydraulic fluid to the flat
jacks in a controlled method. The application of load shall be
incremental and held constant while strains are being recorded.
The increasing loading for each cycle of loading shall be divided
into a minimum of four equal load increments. The strain shall
be recorded at each load step. The decrease in loading shall be
divided into a minimum of two equal unloading increments.
Strain shall be recorded on the decreasing load steps. The
hydraulic pressure shall be reduced to zero and the permanent
strain caused by this cycle of loading shall be recorded. This pro-
cedure shall be used for each cycle of loading.
The load applied in each cycle of load shall be determined by
estimating the peak compressive stress of the existing brick
masonry. The hydraulic pressure needed to cause this peak
compressive stress in the prism shall be calculated by assuming
the area of the loaded prism is equal to the area of the flat jack.
A maximum of one-third of this pressure, rounded to the near-
est 25 psi (172 kPa), shall be applied in the specified incre-
ments to the peak pressure prescribed for the first cycle of
loading. After recording the strain data, this pressure shall be
reduced in a controlled manner to each of the specified incre-
ments for unloading and for recording data. The maximum jack
pressure on the subsequent cycles shall be one-half, two-thirds,
five-sixths and estimated peak pressure. If the estimated peak
compressive stress is less than the existing peak compressive
stress, the cyclic loading and unloading shall continue using
increments of increasing pressure equal to those used prior to
the application of estimated peak pressure.
All strain data shall be recorded to one-ten thousandth of an
inch (0.0025 mm). Jack pressure shall be recorded in incre-
ments of 25 psi (172 kPa) pressure.
9513.7 Quality control. The flat jack shall be calibrated before
use by placing the flat jack between bearing plates of two inches
minimum thickness in a calibrated testing machine. A calibra-
tion curve to convert hydraulic pressure in the flat jack to total
load shall be prepared and included in the report of the results of
testing. Flat jacks shall be recalibrated after three uses.
The hydraulic pressure in the flat jacks shall be indicated by
a calibrated dial indicator having a subdivision of 25 psi (172
kPa) or less. The operator of the hydraulic pump shall use this
dial indicator to control the required increments of hydraulic
pressure in loading and unloading.
9513.8 Interpretation of the data. The data obtained from the
testing required by Item D 2 of Section 9509.6 shall be aver-
aged both in expected peak compressive stress and the corre-
sponding peak strain. The envelope of the averaged
stress-strain relationship of all tests shall be used for the mate-
rial model of the masonry in the infilled frame. If two strain
measurements have been made on the surface of the prism,
these strain measurements shall be averaged for determination
of the stress-strain relationship for the test. If three strain mea-
surements have been made on the surface of the prism, the data
recorded by the center gage shall be given a weight of two for
preparing the average stress-strain relationship for the test.
SECTION 9514
EVALUATION OF EXISTING STRUCTURAL
CONDITIONS
The engineer shall report any observed structural conditions
and structural damage that, in the engineer's judgement, have
imminent life-safety effects on the structure and recommend
repairs. Evaluations and repairs shall be reviewed and
approved by the Department.
SECTION 9515
MATERIALS OF CONSTRUCTION
All materials permitted by this Code may be used to reduce the
story drifts. Their effective stiffness shall be determined by a
nonlinear analysis using principles of engineering mechanics
and expected material characteristics.
SECTION 9516
INFORMATION REQUIRED ON THE PLANS
9516.1 General. In addition to the seismic analysis required
elsewhere in this Chapter, the licensed engineer responsible for
the seismic analysis of the building shall record the information
required by this section on the approved plans.
9516.2 Information required. The plans shall accurately
reflect the results of the engineering investigation and design,
and show all pertinent dimensions and sizes for plan review and
construction. The following shall be provided:
1 . The plans of the existing construction shall be adequately
dimensioned and furnish adequate details in schedules,
notes and sections to fully describe the existing building.
Foundation plan, floor and roof plans which indicate new
work on framing plans of the existing construction.
2. Elevations of the structural system showing sizes and
dimensions.
3. Schedules, sections and details showing reinforcement
of walls, slabs, beams, joists, girders, columns and foun-
dations.
Exception: If copies of the original construction docu-
ments are submitted for information during the plan
check, the information required by Items 1 , 2 and 3 may
be limited to areas of and adjacent to new construction
on a complete outline at that level of the building.
4. Sections and details showing attachments and joining of
new and existing structures. All reinforcement in the
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739
VOLUNTARY-EARTHQUAKE HAZARD REDUCTOOM l^a EXISTING REINFORCED CONCRETE BUILDINGS
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existing structure shall be shown in these sections and
details.
5. Specifications and/or general notes fully describing
demolition, materials and methods, testing and inspec-
tion requirements.
9516.3 Eegmeer's statement. The responsible engineer shall
state on the approved plans, the following:
1. "I am responsible for this building's seismic strengthen-
ing design in compliance with the minimum seismic
resistance standards of Chapter 95 of the Los Angeles
Building Code."
or when applicable:
2. "The Registered Deputy Inspector, required as a condi-
tion of the use of structural design stresses requiring con-
tinuous inspection, will be responsible to me as required
by Section 1704 of the Los Angeles Building Code"
TABLE 95-A
RATING CLASSIFICATIONS
TABLE 95-D
INITIAL EFFECTIVE MOMENT OF
INERTIA OF CONCRETE MEMBERS
MEMBER
RANGE
Rectangular beams
0.30 - 0.5 /^
T & L shaped beams
0.25 - 0.45 1,
Columns /'> 0.5/', A^
0.7-0.9/^
Columns P = 0.2/'^ A^
0.5-0.7/,
Columns P = -0.05 /'^A^
0.3 - 0.5 /,
where:
Ag = gross area of the section,
Ig = moment of inertia of gross concrete section about the
centroidal axis, neglecting the reinforcement.
TABLE 95-E
ASSUMED YIELD STRESS OF EXISTING REINFORCEMENT
CLASSIFICATION
TYPE OF BUILDING
Group I
Essential buildings
Group II
Buildings with occupant load of 5,000 or more,
or assembly rooms of 1,000 occupants or more,
and malls as defmed elsewhere in the Code.
Group III
1,000 to 4,999 occupants
Group IV
300 to 999 occupants
Group V
All others
TYPE OF REINFORCEMENT
AND ERA
ASSUMED YIELD
STRESS, KSI
Pre 1940 - Structural and intermediate grade,
plain and deformed
45
Pre 1940 - Twisted and hard grade
55
Post- 1940 Structural and intermediate grade
45
Post-1940 Hard grade
60
ASTMA615 Grade 40
50
ASTMA615Grade6
70
TABLES 95-B-C
Reserved
ms.mssmHvmiox)m€my&«& i3AMraisnAt{o«8«
§ ij a# 3js
RESPONSE SPECTRA SHAPES
FIGURE 95-1
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2008 CITY OF LOS ANGELES BUILDING CODE
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CHAPTER 96
VOLUNTARY-EARTHQUAKE HAZARD REDUCTION IN EXISTING
REINFORCED CONCRETE AND REINFORCED MASONRY WALL
BUILDINGS WITH FLEXIBLE DIAPHRAGMS
SECTION 9601
PURPOSE
The purpose of this Chapter is to promote public safety and
welfare by reducing the risk of death or injury that may result
from the effects of earthquakes on reinforced concrete and
masonry wall buildings with flexible diaphragms designed
under the building codes in effect prior to January 1, 1995.
These buildings are potentially hazardous and prone to signifi-
cant damage, including possible collapse, in a moderate to
major earthquake. These structures typically shelter large num-
bers of persons and property for retail, food markets, food dis-
tribution centers, warehousing, aerospace, industrial/
manufacturing and general business and office use. Their con-
tinued use after an earthquake is also essential to the local econ-
omy and its post-earthquake recovery.
The provisions of this Chapter are minimum standards for
structural seismic resistance established primarily to reduce
the risk of loss of life or injury on both subject and adjacent
properties and will not necessarily prevent all earthquake dam-
age to an existing building which complies with these stan-
dards. This Chapter shall not require existing electrical,
plumbing, mechanical or fire-safety systems to be altered
unless they constitute a hazard to life or property.
This Chapter provides voluntary retrofit standards for defi-
cient wall anchorage systems on structures that are not subject
to the mandatory provisions of Chapter. When fully followed,
these standards will strengthen the portion of the structure that
is most vulnerable to earthquake damage.
SECTION 9602 "
SCOPE
The voluntary provisions of this Chapter shall apply to existing
buildings of the following types:
1 . Cast-in-place reinforced concrete or masonry wall build-
ings with flexible diaphragms designed under building
codes in effect prior to January 1, 1995.
2. Tilt-up concrete wall buildings with flexible diaphragms
designed under the building codes in effect prior to Janu-
ary 1, 1995, but after January 1, 1976.
All tilt-up concrete wall buildings designed under the Build-
ing Code in effect prior to January 1, 1976 are subject to the
mandatory provisions of this Chapter AH existing reinforced
masonry or concrete buildings with flexible diaphragms,
including tilt-up concrete wall buildings, designed under the
Los Angeles Building Code in effect on or after January 1,
1995, shall be designed in conformance with Chapter 16.
SECTION 9603
DEFINITIONS
For the purposes of this Chapter, the applicable definitions in
Chapter 2, Sections 1602, 1613.2, 1902 and 2302 of this Code;
Sections 1.2, 3.1.1, 4.1, 5.2, 6.2 and 11.2 of ASCE 7, and the
following shall apply:
ANCHORAGE SYSTEM. The system of all structural ele-
ments and connections, which support the concrete or masonry
wall in the lateral direction, including diaphragms and
subdiaphragms, wall anchorage and continuity or cross tie con-
nectors in subdiaphragms and main diaphragms.
COMMENCED CONSTRUCTION. Construction pursuant
to a valid building permit that has progressed to the point that
one of the called inspections as required by the Department has
been made and the work for which the inspection has been
called has been judged by the Department to be substantial and
has been approved by the Department.
EXISTING BUILDING. An erected building for which a
legal building permit and a certificate of occupancy have been
issued.
FLEXIBLE DIAPHRAGM. Any diaphragm constructed of
wood structural panel, diagonal or straight wood sheathing,
metal decking without a structural concrete topping, or hori-
zontal rod bracing.
HISTORICAL BUILDING. Any building designated or cur-
rently in the process of being designated as a historical building
by an appropriate federal, state or City jurisdiction.
REINFORCED CONCRETE WALL. A concrete wall that
has 50 percent or more of the reinforcing steel required for rein-
forced concrete in Chapter 19.
REINFORCED MASONRY WALL. A masonry wall that
has 50 percent or more of the reinforcing steel required by Item
2.3 of Section 2106.4.
RETROFIT. Strengthening or structurally improving the lat-
eral force resisting system of an existing building by alteration
of existing or addition of new structural elements.
TILT-UP CONCRETE WALL. A form of precast concrete
panel construction either cast in the horizontal position at the
site and after curing, lifted and moved into place in a vertical
position, or cast off-site in a fabricator's shop.
SECTION 9604
ANALYSIS AND DESIGN
9604.1 Wall panel anchorage. Concrete and masonry walls
shall be anchored to all floors and roofs which provide lateral
support for the wall. The anchorage shall provide a positive
direct connection between the wall and floor or roof construc-
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2008 CITY OF LOS ANGELES BUILDING CODE
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tion capable of resisting a horizontal force equal to 30 percent
of the tributary wall weight for all buildings, and 45 percent of
the tributary wall weight for essential buildings, or a minimum
force of 250 pounds per linear foot of wall, whichever is
greater.
The required anchorage shall be based on the tributary wall
panel assuming simple supports at floors and roof.
Exception!: An alternate design may be approved by the
Superintendent of Building when justified by well estab-
lished principles of mechanics.
9604.2 Special requirements for wall anchors and continu-
ity ties. The steel elements of the wall anchorage systems and
continuity ties shall be designed by the allowable stress design
method using a load factor of 1 .7. The V3 stress increase permit-
ted by Section 1605.3.2 shall not be permitted for materials
using allowable stress design methods.
The strength design specified in Section 1912. 1, using a load
factor of 2.0 in lieu of 1 .4 for earthquake loading, shall be used
for the design of embedment in concrete.
Wall anchors shall be provided to resist out-of-plane forces,
independent of existing shear anchors.
Existing cast-in-place shear anchors may be
used as wall anchors if the tie element can be readily
attached to the anchors and if the engineer or architect can
establish tension values for the existing anchors through the
use of approved as-built plans or testing, and through analy-
sis showing that the bolts are capable of resisting the total
shear load while being acted upon by the maximum tension
force due to seismic loading. Criteria for analysis and test-
ing shall be determined by the Superintendent of Building.
Expansion anchors are not allowed without special approval
of the Superintendent of Building. Attaching the edge of ply-
wood sheathing to steel ledgers is not considered as complying
with the positive anchoring requirements of the Code; and
attaching the edge of steel decks to steel ledgers is not consid-
ered as providing the positive anchorage of this Code unless
testing and analysis are performed, which establish shear val-
ues for the attachment perpendicular to the edge of the deck.
9604.3 Development of anchor loads into the diaphragm.
Development of anchor loads into roof and floor diaphragms
shall comply with Section 12.11.2.2.3 of ASCE 7.
Exception: If continuously tied girders are present, then the
maximum spacing of the continuity ties is the greater of the
girder spacing or 24 feet (7315 mm).
In wood diaphragms, anchorage shall not be accomplished
by use of toe nails or nails subject to withdrawal, nor shall
wood ledgers, top plates or framing be used in cross-grain
bending or cross-grain tension. The continuous ties required by
Section 12. 1 1 .2.2.3 of ASCE 7 shall be in addition to the dia-
phragm sheathing.
Lengths of development of anchor loads in wood dia-
phragms shall be based on existing field nailing of the sheath-
ing unless existing edge nailing is positively identified on the
original construction plans or at the site.
At reentrant corners, continuity collectors may be required
for existing return walls not designed as shear walls, to develop
into the diaphragm a force equal to the lesser of the rocking or
shear capacity of the return wall, or the tributary shear but not
exceeding the capacity of the diaphragm. Shear anchors for the
return wall shall be commensurate with the collector force. If a
truss or beam other than rafters or purlins is supported by the
return wall or by a column integral with the return wall, an
independent secondary column is required to support the roof
or floor members whenever rocking or shear capacity of the
return wall is governing.
9604.4 Anchorage at pilasters. Anchorage of pilasters shall
be designed for the tributary wall anchoring load per Section
9604.1 of this Code, considering the wall as a two-way slab.
The edge of the two-way slab shall be considered "fixed" when
there is continuity at pilasters, and considered "pinned" at roof
or floor levels. The pilasters or the walls immediately adjacent
to the pilasters shall be anchored directly to the roof framing
such that the existing vertical anchor bolts at the top of the
pilasters are by-passed without causing tensioii or shear failure
at the top of the pilasters.
Exception: If existing vertical anchor bolts at the top of the
pilasters are used for the anchorage, then additional exterior
confinement shall be provided.
The minimum anchorage at a floor or roof between the pilas-
ters shall be that specified in Section 9604. 1 of this Code.
9604.5 Symmetry. Symmetry of connectors in the ;mchorage
system is required. Eccentricity may be allowed when it can be
shown that all components of forces are positively resisted and
justified by calculations or tests.
9604.6 Minimum roof member size. Wood members used to
develop anchorage forces to the diaphragm shall be of mini-
mum 3 -inch (76 mm) nominal width for new construction and
replacement. All such members must be designed for gravity
and earthquake forces as part of the wall anchorage system. For
existing structural members, the allowable stresses shall be
without the 1/3 stress increase per Section 9604.2.
9604.7 Combination of anchor types. To repair and retrofit
existing buildings, a combination of different anchor types of
different behavior or stiffness shall not be permitted. The
capacity of the new and existing connectors cannot be added.
9604.8 Prohibited anchors. Usage of connectors that were
bent or stretched from the intended use shall be prohibited.
9604.9 Crack and damage repairs, evaiuation of existing
structural alterations. The engineer or architect shall report
any observed structural conditions and structural damage that
have imminent life safety effects on the buildings and recom-
mend repairs. This includes alterations such as openings cut in
existing wall panels without a building permit. Evaluations and
repairs shall be reviewed and approved by the Department.
9604.10 Miscellaneous. Existing mezzanines relying on the
concrete or masonry walls for vertical or lateral support shall
be anchored to the walls for the tributary mezzanine load. Walls
depending on the mezzanine for lateral support shall be
anchored per Sections 9604. 1 , 9604.2 and 9604.3 of this Code.
Exception: Existing mezzanines that have independent lat-
eral and vertical support need not be anchored to the con-
crete or masonry walls.
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2008 CITY OF LOS ANGELES BUILDING CODE
VOLUNTARY-EARTHQUAKE HAZARD REDUCTION IN EXISTING REINFORCED CONCRETE
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Existing interior masonry or concrete walls not designed as
shear walls, which extend to the floor above or to the roof dia-
phragm shall also be anchored for out-of-plane forces per Sec-
tion 9604.1, 9604.2 and 9604.3 of this Code. In the in-plane
direction, the walls may be isolated or shall be developed into
the diaphragm for a lateral force equal to the lesser of the rock-
ing or shear capacity of the wall, or the tributary shear but not
exceeding the diaphragm capacity.
9604.11 Historical buildings. Qualified historical buildings
shall be permitted to use alternate building standards or devia-
tions from this Chapter in order to preserve their original or
restored architectural elements and features. See Chapter 84
for these alternatives.
SECTION 9605
MATERIALS OF CONSTRUCTION
All materials permitted by this Code, including their appropri-
ate allowable stresses and those existing configurations of
materials specified in Chapter 88, may be utilized to meet the
requirements of this Chapter.
SECTION 9606
INFORMATION REQUIRED ON PLANS
9606.1 General. In addition to the seismic analysis required
elsewhere in this Chapter, the licensed engineer or architect
responsible for the seismic analysis of the building shall record
the information required by this section on the approved plans.
9606.2 Information required. The plans shall accurately
reflect the results of the engineering investigation and design
and show all pertinent dimensions and sizes for plan review and
construction. The following shall be provided:
1 . Floor plans and roof plans shall show the existing fram-
ing construction, diaphragm construction, proposed wall
anchors, cross-ties and collectors. Existing nailing,
anchors, ties and collectors shall also be shown on the
plans if these are part of the design, and these structural
elements need to be verified in the field.
2. At elevations where there is alterations or damage, the
. details shall show the roof and floor heights, dimensions
of openings, location and extent of existing damage, and
proposed repair.
3. Typical concrete or masonry wall sections with wall
thickness, height, and location of anchors shall be pro-
vided.
4. Details shall include the existing and new anchors and
the method of development of anchor forces into the dia-
phragm framing; existing and new cross-ties, existing
and new or improved support of the roof and floor gird-
ers at pilasters or walls.
9606.3 Engineer's or architect's statement. The responsible
engineer or architect shall state on the approved plans, the fol-
lowing:
1 . "I am responsible for this building' s seismic strengthen-
ing design of the tilt-up concrete wall anchorage system
in compliance with the minimum seismic resistance
standards of Chapter 96 of the Los Angeles Building
Code."
or when applicable:
2. "The Registered Deputy Inspector, required as a condi-
tion of the use of structural design stresses requiring con-
tinuous inspection, will be responsible to me as required
by Section 1704 of the Los Angeles Building Code."
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2008 CITY OF LOS ANGELES BUILDING CODE
743
744 2008 CITY OF LOS ANGELES BUILDING CODE
EXCERPTS
FROM RELATED LOS ANGELES CITY CODES
LOS ANGELES MUNICIPAL CODE
Chapter II, Article 8
SECTION 28.10
BALLOON - USE FOR ADVERTISING
No person shall release or allow the release of any free balloon,
toy balloon or any group of the same which has attached thereto
any substance, matter or material used, designated or intended
for any advertising purpose.
SECTION 28.11
CAPTIVE BALLOONS AND SIMILAR DEVICES
It shall be unlawful to permit a balloon or similar device which
floats in the air and is restrained, attached or held in place by a
cord, rope, cable or similar means, to float, ascend, rise or
remain aloft at a vertical height of five feet or more above the
surface of the ground measured to the highest point of the bal-
loon or similar device.
2008 CITY OF LOS ANGELES BUILDING CODE 745
EXCERPTS FROM RELATED LOS ANGELES CITY CODES
Chapter IX, Article 6
DIVISION A — MISCELLANEOUS
SECTION 96,02
EXCAVATING, DEPOSITING, DUMPING - EARTH,
SAND, GRAVEL, ETC. - WHERE PROHIBITED
(a) No person shall, upon any private property within any res-
idence district as described in the zoning laws of this City,
dig, excavate, separate, screen or dredge for sand, gravel,
earth, rock, stone, minerals, or any other substance so as to
cause sand, dust or dirt to be either blown or deposited
over and upon the inhabited premises of others or across or
upon any public way, and no person shall, in connection
with any such operation, cause loud noises by the use of
steam shovels, tractors, trucks or other power machinery
to be made, to the annoyance of occupants of adjacent or
nearby habitations.
(b) No person shall, upon any private property within any res-
idence district, as described in the zoning laws of this City,
dump or deposit, to a level above the official grade of an
abutting street, any loose earth, sand, gravel or any other
similar material so as to cause or result in sand, dust or dirt
being blown over and upon the inhabited premises of oth-
ers, or across any public way, or so as to cause or allow
such materials to be washed or eroded over and upon the
premises of another or upon any public way.
(c) The foregoing prohibitions shall not apply to work neces-
sary for the erection or alteration of a building or structure
pursuant to a valid building permit issued therefor under
the provisions of Article 1 of Chapter 9 of this Code; nor to
improvement work done pursuant to a plan for subdivid-
ing and improving land carried out as contemplated by
Ordinance No. 79,310, nor to work done pursuant to an
express permit therefor issued under Article 4 of Chapter 6
of this Code or under any other ordinance of this City. Pro-
vided, however, that no person shall claim the benefit of
this exception who does not, diligently and without unnec-
essary or unreasonable delay, prosecute such exempted
improvement work to completion, in a manner calculated
to avoid undue annoyance to the occupants of nearby habi-
tations.
(d) No person shall dump, deposit, move or place any earth,
sand, gravel, rock, debris or other material, or maintain,
permit or allow the same to remain in a condition so as to
create the danger, possibility or probability that the same
will roll, slip, slide, erode, flow or wash upon or over any
public, or privately owned property without prior written
consent of the owner thereof, or upon or over any public
place, highway, street, alley or way.
(e) No person shall, when hauling any earth, sand, gravel,
rock, stone, debris, paper or any other substance over any
public street, alley or other public place, allow such mate-
rials to blow or spill over and upon the public street, alley
or other public place or adjacent private property.
(f) No person shall, when excavating, compacting, hauling or
moving earth, sand, gravel, rock, stone, debris, or any
other similar substance, cause, allow, or permit any mud,
earth, sand, gravel, rock, stone, debris or other substance
to drop, be deposited, or fall from the body, tires, or wheels
of any vehicle so used upon any public street or alley with-
out immediately and permanently removing the same
therefrom.
SECTION 96.05
DECLARING CERTAIN AREA SUBJECT TO
INUNDATION AND PROHIBITING CONSTRUCTION
OF CERTAIN BUILDINGS THEREIN
(a) Every part and portion of that territory hereinafter
described, which constitutes a part of the area known as
Laguna-Dominguez area, and located within the corporate
limits of the City of Los Angeles, which is less than fifteen
and one-half feet elevation above sea level, United States
Geological Survey, is hereby declared to be subject to
inundation, and is, therefore, declared to be unfit for
human habitation. Said territory is more particularly
described as follows:
Beginning at the intersection of the easterly prolonga-
tion of the center line of that portion of One Hundred
Seventieth Street (in the City of Gardena) extending
westerly from Vermont Avenue with the westerly bound-
ary of the City of Los Angeles as said boundary existed
January 1, 1942; thence southerly along said westerly
boundary of the City of Los Angeles in its various
courses to the northeasterly prolongation of the center
line of that portion of One Hundred Eighty-second Street
tending southwesterly from Vermont Avenue; thence
northeasterly along said last-mentioned northeasterly
prolongation to the center line of Vermont Avenue;
thence southerly along said last-mentioned center line in
its various courses to the westerly prolongation of the
southerly line of Lot 109, McDonald Tract, as per map
recorded in Book 15, pages 21 and 22, Miscellaneous
Records of Los Angeles County; thence easterly along
said last-mentioned prolongation and said last-men-
tioned southerly line to a point in the northerly prolonga-
tion of the westerly line of Lot 75 of Tract No. 4671, as
per map recorded in Book 56, pages 30 and 31 of Maps,
Records of said County; thence southerly along said
last-mentioned northerly prolongation to the center line
of One Hundred Ninetieth Street; thence northeasterly
long said last-mentioned center line to the northerly pro-
longation of the center line of that portion of Hamilton
Street extending southerly from One Hundred Ninetieth
Street; thence southerly along said last-mentioned north-
erly prolongation to the southeasterly boundary line of
the City of Los Angeles as said boundaiy existed January
1, 1942; thence northeasterly along said last-mentioned
746
2008 CITY OF LOS ANGELES BUILDING CODE
EXCERPTS FROM RELATED LOS ANGELES CITY CODES
boundary of the City of Los Angeles and continuing
along saici boundary to the easterly prolongation of the
center line of that portion of One Hundred Eighty-ninth
Street extending westerly from Figueroa Street; thence
westerly along said last-mentioned easterly prolongation
and along said center line of One Hundred Eighty-ninth
Street to the southerly prolongation of the westerly line
of Lot 8, M. E. Woods Gardena Tract, as per map
recorded in Book 10, page 172 of Maps, Records of said
County; thence northerly along said last-mentioned
southerly prolongation and said westerly line of Lot 8 to
the northwesterly comer thereof; thence southwesterly
along the southeasterly line of Lot 21 of Stimson Bros.
Resubdivision of Farm Lots 18 and 19 South Gardena
Tract, as per map recorded in Book 52, page 98, Miscel-
laneous Records of said County, to the most southerly
comer of said Lot 21 ; thence northerly along the westerly
line of said Lot 21 and the northerly prolongation thereof
to the center line of One Hundred Eighty-fourth Street;
thence southwesterly along said last-mentioned center
line to the southerly prolongation of the westerly line of
Lot 27, said Stimson Bros. Resubdivision of Farm Lots
18 and 19, South Gardena tract; thence northerly along
said last-mentioned southerly prolongation and said
" westerly line and the northerly prolongation thereof to
the easterly prolongation of the hereinbefore mentioned
center line of One Hundred Seventieth Street; thence
westerly along said last-mentioned easterly prolongation
to the point of beginning.
(b) No building or portion thereof which is designed for resi-
dential purposes or as a place of public assembly as herein-
after described, or for both, may be constructed, and no
existing building may be altered so as to be used either in
whole or in part for such use, upon any part or portion of
the premises described in Subdivision (a) hereof, which is
less than fifteen and one-half feet elevation above sea
level. United States Geological Survey.
(c) A "place of public assembly", as used in Subdivision (b)
hereof means and includes every place designed for or
used for the congregation or gathering of twenty (20) or
more persons, whether such gathering be of a public,
restricted, or private nature. Assembly halls, churches,
schools, auditoriums, recreation halls, pavilions, places of
amusement, dance halls, opera house, motion picture thea-
tres, and the like, are included within this term.
(d) No permit shall be issued by any officer or employee of the
City for the doing of any act for which such permit is
required by any provision of this chapter when such act, if
performed, would constitute a violation of this section.
2008 CITY OF LOS ANGELES BUILDING CODE 747
DIVISION C — FABRICATOR APPROVALS
SECTION 96.200
STATEMENT OF PURPOSE
If it is the purpose of this division to safeguard the Ufe, health,
property and general welfare of the people of this City by regu-
lating work performed at locations other than construction sites
which work, if performed at such construction sites, would be
subject to certain inspection requirements of the Los Angeles
Municipal Code.
SECTION 96.201
DEFINITIONS
The following terms are defined for purposes of this division.
DEPARTMENT. The Department of Building and Safety of
the City of Los Angeles.
GENERAL MANAGER. The General Manager of the
Department.
PERSON. Any natural person and any firm, association, part-
nership, corporation or other business entity.
TYPE I FABRICATOR. A person who, at a place or locadon
other than the site of a particular building or structure to be
erected or under construction in the City of Los Angeles, per-
forms work which:
1 . If performed at such construction site would be subject to
the inspection requirements of Section 91.1704 of the
Los Angeles Municipal Code; or
2. Is required by a provision of Article I, Chapter IX, of the
Los Angeles Municipal Code to be performed by a Type I
Fabricator.
TYPE II FABRICATOR. Any person who, at the place or
location other than the site of a particular building or structure
to be erected or under construction in the City of Los Angeles,
performs work which if performed at the construction site
would be subject to the inspection requirements of Sections
91.108, 93.0304, 94.103.5, or 95.116 of the Los Angeles
Municipal Code.
APPROVAL. A written authorization issued to Type I and
Type II Fabricators pursuant to the provisions of this division
containing the name of the fabricator and the exact facility or
physical plant where the work that is subject to these provisions
will be performed.
SECTION 96.203
SCOPE AND EFFECT OF APPROVALS
An approval issued pursuant to this division shall constitute
authorization for the persons named in the approval to perform
work as Type I or Type II Fabricators at the locations desig-
nated in the approval and shall constitute authorization to uti-
lize the work so produced without the inspections which, if the
work were performed at the construction site of a building or
structure in the City of Los Angeles, would be required by Sec-
tions 91.108, 91.1701, 93.0304, 94.135.0 and 95.116 of the
Los Angeles Municipal Code, provided, however that any Type
I Fabricator who performs work described in Section
91.1701.9 of the Los Angeles Municipal Code shall not be
exempt from the inspection requirements of that subsection.
No approval issued pursuant to the provisions of this divi-
sion shall be construed as authority to violate any law or regula-
tion applicable in the City of Los Angeles, nor shall any
approval be construed as having any effect whatsoever upon
the laws or regulations of the State of California applicable to
contractors.
SECTION 96.204
ISSUANCE OF APPROVALS - PROCEDURES
(a) Applications. Applications for initial approvals shall be
made on forms provided by the Department, which forms
shall include a statement that the applicant agrees to pay all
inspection charges imposed pursuant to Subsection (i) of
this section. No application will be accepted unless
accompanied by the appropriate fee as hereinafter set
forth, which fee is unrelated to the inspection charges
imposed pursuant to Subsection (i) of this section.
(b) Fees. A fee of $800.00 shall accompany each application
for approval and a renewal fee of $600.00 shall accom-
pany each application for renewal. A fee of $450.00 shall
be charged for the approval of each branch plant and shall
be in addition to fees required for the main fabricator plant.
A renewal fee of $175.00 shall be charged for the renewal
of each branch plant in addition to the main fabricator
plant. A fee of $450.00 shall accompany each application
for a major modification (includes changes in a quality
control system or key management personnel) and a fee of
$ 1 50.00 shall accompany each application for a clerical
modification.
A fee of $ 250.00 shall accompany each request for
acceptance of a material fabricated by an unauthorized
fabricator. This request, will be accepted only once from
any individual fabrication company. Inspection and travel
charges shall be the same as those charged to an applicant
seeking to become an authorized fabricator.
Exception: An unauthorized fabricator who has filed
a complete and acceptable application and submittal
requesting to become an authorized fabricator and has
paid the application fee may submit additional
requests provided:
1 . A separate application is made for each request,
and
2. A fee of $240.00 accompanies each request.
The fees for approval of new fabricators include four
hours of Departmental processing time. The fees for major
modifications of fabricators, and for approval of a branch
plant include four hours of Departmental processing time.
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EXCERPTS FROM RELATED LOS ANGELES CITY CODES
The fees for a material fabricated by an unauthorized
fabricator includes two hours of Departmental processing
time. The fees for renewals and minor modifications
include three hours and one and one-half hours, respec-
tively, of Departmental processing time.
The applicant shall agree in writing as part of the appli-
cation, to pay supplemental fees at the rate of $75.00 per
hour to cover the time of processing that is in excess of the
time provided for in the approval, renewal or modification
fee specified in this section. Processing shall include those
activities directly related to the approval of fabricators for
which an application has been made and shall include all
research, review, investigation, plant inspection, travel,
correspondence, clerical and consultation time pertinent
to the application. The Department may require an esti-
mated suppllemental fee to cover the cost of time and travel
expense to be paid at the time of filing the application
and/or before any travel to plants outside of the State of
California. However, the applicant shall pay the supple-
mental fee in full prior to final action on the application by
the Department.
The fees specified in this section, including supplemen-
tal fees, and application fees are not refundable once work
has been performed by the Department, regardless of
whether the action taken is approval or denial.
Excepltioe: Supplemental fees paid in advance,
which are in excess of the total actual fees, may be
refundable.
(c) Deration of approval. Any approval issued pursuant to
the provisions of this division shall remain valid for a
period of one year from the date of issuance thereof unless
revoked by the Department pursuant to the provisions of
this division.
(d) Investigation of application. The General Manager shall
investigate every application submitted pursuant to Sub-
section (a) of this section to determine whether the appli-
cant possesses qualifications sufficient to justify the
issuance of the requested approval. In making this deter-
mination the General Manager may consider the experi-
ence, education and training of the applicant and his
employees; the quality control standards maintained by
the applicant; the equipment and facilities of the applicant;
and the physical plant which will be designated in the
requested approval if the same is issued. The General
Manager may also consider any other factors pertaining to
the manufacturing processes of the applicant as he. may, in
the reasonable exercise of his discretion, deem to be rele-
vant.
(e) Action upon applications. If it is determined that an
applicant possesses qualifications sufficient to justify the
issuance of the requested approval, the Department shall
issue the same to the applicant. If a contrary determination
is made, the application shall be denied and the Depart-
ment shall notify the applicant of that action. Such notifi-
cation shall be in writing and shall specify the reasons for
the denial. Initial applications will expire 12 months after
the filing date if the request for approval of a fabricator has
not been cleared of corrections and approved. No approval
shall be issued until the application is refiled and a new fee
paid.
Exception: The Department or the Board may grant
extensions of time if an applicant submits in writing
sufficient evidence that unusual conditions or circum-
stances precluded the approval within the allocated
time.
(f) Conditional approvals. The Department may impose
reasonable conditions precedent upon the issuance of
approvals and may include in any approval special condi-
tions deemed necessary to insure that the work to be per-
formed under such approval will comply with the
provisions of Chapter IX of the Los Angeles Municipal
Code. Such special conditions may include, but are not
limited to, special quality control procedures and require-
ments for specific identification of particular materials.
Any special conditions included in an approval shall
impose mandatory duties on the fabricator to comply
therewith.
(g) Rules and regulations. The General Manager shall estab-
lish such rules and regulations as he may deem appropriate
relative to the following:
1. The implementation of the investigatory duties
imposed upon him by Subsection (d) of this section;
2. The maintenance of standards applicable to the facili-
ties, equipment, employees and physical plants of
approved fabricators.
3 . Such other matters as are within the scope of this divi-
sion.
(h) Inspections.
1. The General Manager of the Department shall cause
to be made such inspections of a fabricator's facili-
ties, equipment, procedures, materials and construc-
tion sites upon delivery of fabricated products as, in
the reasonable exercise of discretion, shall be deemed
necessary to carry out the purpose of this division.
Such inspections may consist of any or all of the fol-
lowing:
Initial inspections. Inspections conducted prior to
the issuance of an approval for which an applica-
tion has been made.
Annual inspections. In-plant inspection at least
once a year.
Periodic monitoring inspections. Unannounced
in-plant inspections of the premises of a fabricator
to whom an approval has been issued.
Job inspections. On-site or in-plant inspection of
fabricated material to be used at construction sites
within the City.
Requested inspections. Inspections conducted at
the specific written request of a fabricator at a pre-
arranged time and inspections conducted of fabri-
cated material of an unlicensed fabricator.
2. All in-plant inspections of fabrication facilities will
be performed by Department personnel, except that
2008 CITY OF LOS ANGELES BUILDING CODE
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an initial inspection conducted prior to the issuance of
a Type I approval applicable to facilities situated
more than 60 miles from the Los Angeles City Hall
may, at the election of the applicant, be performed by
an approved testing agency. Such inspection by an
approved testing agency, however, will not preclude
such further investigation relative to the application
as the General Manager of the Department, pursuant
to Subsection (d) hereof, may deem necessary.
(i) Imspectiom charges.
1. Whenever an inspection is conducted by Department
personnel at facilities located more than 60 air miles
from the Los Angeles City Hall, whether such inspec-
tion be conducted pursuant to Subsection (d) or Sub-
section (h) of this section, or both, the fabricator shall
reimburse the City of Los Angeles for the cost thereof
in accordance with the following:
A. Automobile travel. Mileage at the rate of $.25
per mile for all miles driven, both ways,
between a point 60 miles from Los Angeles
City Hall to the facilities where the inspection is
to be conducted, plus $65.00 per hour for all
inspection and travel time for each inspector
required.
B. Air travel. The coach-class fare of a regularly
scheduled airline from and to Los Angeles
International Airport and the airport closest in
proximity to the facilities to be inspected; the
cost of motor vehicle transportation to and from
such airport and such facilities; inspection and
travel time at the rate of $65.00 per hour for
each inspector required.
C. Per diem. Per diem at the rate of $35 .00 per day
for inspections requiring more than eight hours
of combined travel and inspection time. The
cost of lodging and meals required during the
combined travel and inspection time.
2. Whenever periodic monitoring inspections,
requested inspections, or job inspections are con-
ducted by Department personnel at facilities or sites
60 air miles or less from the Los Angeles City Hall,
the fabricator shall pay the City of Los Angeles a fee
of $65.00 per inspection, per inspector, plus $65.00
per hour for all inspection and travel time in excess of
one hour.
3. The Department may require an estimated travel
expense fee to be paid prior to inspection.
The initial application for approval, and the renewal
application, shall include a statement that the appli-
cant agrees to pay all inspection charges imposed pur-
suant to this subsection.
(k) Identification. All fabricated products to be used within
the City shall be identified in a manner acceptable to the
Department.
SECTION 96.205
SUSPENSION AND REVOCATION OF APPROVALS
(a) Ground. An approval issued pursuant to the provisions of
this division may be suspended or revoked upon the fol-
lowing grounds:
1 . The performance of work for which the approval was
issued which fails to comply with the applicable pro-
visions of Chapter IX of the Los Angeles Municipal
Code.
2. Failure of the fabricator to satisfy any condition of the
approval, or to comply with applicable rules and regu-
lations established pursuant to Subsection (g) of Sec-
tion 96.204 of this Code.
3. Any of the reasons specified in Section 98.0202 of the
Los Angeles Municipal Code.
In addition to the foregoing, any approval may be tempo-
rarily suspended for failure to reimburse the City of Los
Angeles for inspection costs as required by Subsection (i) of
Section 96.204 of this division.
(j) NotilKcatioe. Prior to fabrication of products to used
within the City, the licensed fabricator shall notify the
Department of all fabrication schedules and delivery
dates.
750
2008 CITY OF LOS ANGELES BUILDING CODE
DIVISION D — REPORT OF RESIDENTIAL PROPERTY RECORDS
AND PENDING AND RECORDED LIENS
SECTION 96.300
INTENT
Pursuant to Article 6.5 (commencing with Section 38780) of
Chapter 10, Part 2, Division 3, Title 4, of the California Gov-
ernment Code, it is the intent of the Council of this City to
assure that the purchasers of residential property within the
City are furnished with reports of matters of City record per-
taining to the authorized use, occupancy and zoning classifica-
tion of residential property prior to sale or exchange. It is
further the intent of the City Council to assure that purchasers
of residential property within the City are furnished with
reports of certain pending special assessment liens listed
below; information regarding the installation of metal bars,
grilles, grates, security roll-down shutters, and similar devices
over emergency escape windows in sleeping rooms; smoke
detectors; impact hazard glazing; water conservation devices;
seismic gas shutoff valves; certificates of occupancy and sewer
permits.
SECTION 96.301
DEFINITIONS
For the purposes of this division:
(a) "Owner" shall mean any person, partnership, association,
company, corporation or fiduciary in whom or which is
vested legal title to residential property as defined herein,
or who or which possesses the power to convey legal title
to such residential property.
(b) "Residential property" shall mean:
( 1 ) Any real property improved with one or more build-
ings or structures which in whole or in part are used
for or are legally permitted to be used for dwelling
units or guest room purposes.
(2) Any vacant real property located in a zone wherein
dwelling or guest room uses are legally permitted.
(c) "Agreement of sale" shall mean any agreement, reduced
to writing, which provides that legal title of any real prop-
erty shall thereafter be conveyed from one owner to
another.
(d) "Brush abatement" shall mean those proceedings initi-
ated by the City under the authority of Title 4, Division 3,
Part 2, Chapter 1 3 , of the Government Code of the State of
California, where the Fire Department has determined that
a fire hazard exists by reason of the presence upon real
property of brush which the City Council may order
removed linder the authority of the above-mentioned
chapter of the Government Code.
SECTION 96.302
REPORTS REQUIRED
Prior to entering into an agreement of sale or contracting for an
exchange of any residential property, or, where an escrow
agreement has been executed in connection therewith, prior to
close of escrow, the owner or his agent shall obtain from the
Department of Building and Safety a report of the Superinten-
dent of Building and a report of the City Engineer; said reports,
containing the information specified in Section 96.304 of this
Code.
SECTION 96.303
APPLICATION
Upon written application by the owner or the owner's agent to
the Department of Building and Safety on forms provided by
the City and the payment of a fee specified herein to the Depart-
ment of Building and Safety, the Superintendent of Building
and the City Engineer shall review the appropriate City
records. This application shall contain the name and address of
the owner, the legal description, the county assessor's map
book page and parcel number and, if available, the street
address of the residential property for which the reports are
sought.
The appUcation for the report regarding a sale or exchange of
a residential property shall not be accepted by the Department
of Building and Safety until such time as the applicant provides
the Department of Building and Safety with one of the follow-
ing:
1 . A decliaration under penalty of perjury by the owner cer-
tifying that in the residential property for which the
report is sought:
(a) Smoke detectors have been installed in accor-
dance with the Los Angeles Municipal Code Sec-
tion 918603; and
(b) Impact hazard glazing has been installed in
accordance with Los Angeles Municipal Code,
Section 91.6101; and
(c) Water-conservation devices have been installed
in accordance with Los Angeles Municipal Code
Section 122.03;
(d) Metal bars, grilles, grates, security roll-down
shutters, and similar devices over emergency
escape windows in sleeping rooms have been
installed in accordance with Los Angeles Munici-
pal Code Section 91.6304.3; and
(e) Lights and locks have been installed in accor-
dance with Section 91.8607 of the Los Angeles
Municipal Code; and
(f) Seismic gas shutoff valves has been installed in
accordance with Section 94.1219.
2008 CITY OF LOS ANGELES BUILDING CODE
751
EXCERPTS FROM RELATED LOS ANGELES CITY CODES
2. A declaration under penalty of perjury by the owner cer-
tifying that in the residential property for which the
report is sought:
(a) Smoke detectors will be installed in accordance
with the Los Angeles Municipal Code Section
91.8603; and
(b) Impact hazard glazing will be installed in accor-
dance with the Los Angeles Municipal Code,
Section 91.6101.
The owner shall further certify that such
smoke detectors and/or impact hazard glazing
will be installed prior to entering into an agree-
ment of sale or contracting for an exchange of a
residential property, or, where an escrow agree-
ment has been executed in connection therewith,
prior to close of escrow, and that within ten days
after the smoke detectors and/or impact hazard
glazing is/are installed he/she will so advise the
Department of Building and Safety in writing;
and
(c) Water conservation devices will be installed in
accordance with Los Angeles Municipal Code
Section 122.03;
(d) Metal bars, grilles, grates, security roll-down
shutters, and similar devices over emergency
escape windows in sleeping rooms will be
installed in accordance with Los Angeles Munici-
pal Code Section 91.6304.3; and
(e) Lights and locks will be installed in accordance
with Section 91.8607 of the Los Angeles Munici-
pal Code; and
(f) Seismic gas shutoff valves will be installed in
accordance with Section 94.1219.
3. A declaration under penalty of perjury by the buyer certi-
fying that in the residential property for which the report
is sought:
(a) Smoke detectors will be installed in accordance
with the Los Angeles Municipal Code Section
91.8603; and
(b) Impact hazard glazing will be installed in accor-
dance with the Los Angeles Municipal Code,
Section 91.6101.
The buyer shall further certify that such smoke
detectors and/or impact hazard glazing will be
installed within 30 days after entering into an
agreement of sale or contracting for an exchange
of a residential property, or, where an escrow
agreement has been executed in connection
therewith, within 30 days after close of escrow,
and that within 10 days after the smoke detectors
and/or impact hazard glazing is/are installed
he/she will so advise the Department of Building
and Safety in writing; and
(c) Water conservation devices have been installed
in accordance with Los Angeles Municipal Code
Section 122.03;
(d) Metal bars, grilles, grates, security ■ roll-down
shutters, and similar devices over emergency
escape windows in sleeping rooms have been
installed in accordance with Los Angeles Munici-
pal Code Section 91.6304.3; and
(e) Lights and locks have been installed in accor-
dance with Section 91.8607 of the Los Angeles
Municipal Code.
(f) Seismic gas shutoff valves will be or have been
installed in accordance with Section 94.1219.
4. The Department of Building and Safety shall deliver to
the applicant, either in person or by mail, the reports
required within 15 calendar days after the date of the
acceptance of the application.
5 . The owner must also provide a declaration under penalty
of perjury that he or she has inspected the property for the
existence of protected trees and the number of protected
trees, if any, located on the subject property. For the pur-
poses of this section, the definition of "protected tree"
set forth in Section 46.01 this Code shall apply. The dec-
laration shall also authorize the Bureau of Street Services
within the Department of Public Works to verify this
information by entry upon the subject property. A fee
may be collected for any inspection required to verify the
declaration. The fee shall be determined and adopted in
the same manner as provided in Section 12.37 1. 1 . of this
Code for establishing fees.
SECTIOM 96.304
CONTENTS OF REPORTS
(a) Report of superintendent of building. The report of the
Superintendent of Building shall contain the following
information so far as it is available in the records of the
Department of Building and Safety:
(1) The zoning classification of the property in ques-
tion.
(2) The authorized occupancy and use of the subject
property as shown by building peraiits or certifi-
cates of occupancy of record.
(3) Existing orders or the estimated amount of pending
assessments of record which are the result of the
Superintendent of Building having awai'ded a con-
tract for the demolition of buildings or structures
upon the subject residential property which demoli-
tions were ordered to be performed by the Superin-
tendent of Building under the provisions of the Los
Angeles Municipal Code.
(4) The declaration made pursuant to the provisions of
Section 96.303 of this Code.
(5) A copy of any Certificate of Occupancy issued with
respect to the subject property pursuant to Section
91.0307 of the Los Angeles Municipal Code.
(6) A listing of all document and reference numbers
written or printed directly on the individual lot for
which the report is requested as shown on the Zon-
752
2008 CITY OF LOS ANGELES BUILDING CODE
EXCERPTS FROM RELATED LOS ANGELES CITY CODES
ing Map maintained by the Department of Building
and Safety.
(7) Any current resolution by the City Council placing
the property into the Rent Escrow Account Program
of the City of Los Angeles. Notice of this resolution
shall also be filed in the Office of the County
Recorder.
(b) City engineer reports. The City Engineer report shall
contain the following information:
( 1 ) An estimate of pending assessment liens on residen-
tial properties for public maintenance of private
streets. Such estimate shall be provided upon deter-
mination of the cost of correcting any hazardous
condition upon a private street whenever such cor-
rective work is ordered by the Board of Public
Works pursuant to the provisions of Section 65.13
of this Code.
(2) An estimate of pending special assessment liens for
public improvements proposed under assessment
procedures authorized by State law for which an
ordinance of intention has been adopted by the City
Council of this City.
(3) Pending special assessment liens for weed clearance
originating under the provisions of Title 4, Division
3 , Part 2, Chapter 1 3 of the Government Code of the
State of California.
(4) Notices of record to repair sidewalks issued by the
Department of Public Works under the authority of
Chapter 22 of Part 3 of Division 7 of the Streets and
Highways Code of the State of California.
(5) Existing orders or notices of record received by the
Department of Public Works from the Fire Depart-
ment requesting the initiation of proceeding for
brush abatement under the provisions of Title 4,
Division 3, Part 2, Chapter 13, of the Government
Code of the State of California.
(6) All recorded assessment liens as known to the City
Engineer except for street lighting maintenance
assessment liens.
(7) Whether or not a house sewer connection permit has
been issued pursuant to Section 64.12 of the Los
Angeles Municipal Code.
(8) Notices of making of application for essential public
utilities assessments pursuant to Chapter 8 of Divi-
sion 6 of the Los Angeles Administrative Code,
which have not yet been acted upon by the City
Council, or, if acted upon, have resulted in an
assessment lien which is not yet delinquent.
SECTION 96.305
FEE FOR REPORTS
Every owner or agent for the owner, who applies for a Report of
Residential Property Records and Pending Special Assessment
Liens shall pay to the Department of Building and Safety a fee
therefor in the sum of sixty-five dollars ($65.00). Of this
amount, eighteen dollars ($18.00) shall be credited to the
department's receipts of the Bureau of Engineering, Depart-
ment of Public Works, and the balance shall be credited to the
department receipts of the Department of Building and Safety.
SECTION 96.306
. EFFECTIVE PERIOD OF REPORT
No new report need be obtained by a owner for a residential
property for a period of six months after the issuance of a report
under the provisions of this division. During said six-months
period the City may notify the applicant, at no extra charge to
him, of new information of City record that makes the original
report obsolete.
SECTION 96.307
DELIVERY OF THE REPORT
The reports of the Superintendent of Building and the City
Engineer shall be delivered by the owner or his agent to the
buyer or transferee of the subject residential property prior to
entering into an agreement of sale or exchange of said property.
Except that where in connection with said sale or exchange an
escrow agreement has been executed, the seller or his agent
may transmit said reports to the escrow agent with an instruc-
tion that said agent present these reports to the buyer or trans-
feree prior to close of escrow, or may instruct the escrow agent
to obtain said reports pursuant to the provisions of Section
96.303 and 96.305 of this Code and present them to the buyer
or transferee prior to close of escrow.
SECTION 96.308
EXCEPTIONS
The provisions of the division shall not apply to:
(a) Property exempt from taxation under the Documentary
Transfer Tax Act of the State of California.
(b) The first sale of a residential building or condominium
located in a subdivision whose final map has been
approved and recorded in accordance with the Subdivi-
sion Map Act not more than two years prior to the first
sale. Provided, however, that such exception shall not
apply to a condominium created in a condominium
conversion project, as said terms are defined in Section
12.03 of this Code.
SECTION 96.309
NON-COMPLIANCE NOT TO INVALIDATE SALE OR
EXCHANGE: EXCEPTION
No sale or exchange of residential property subject to the provi-
sions of this division shall be invalidated because of the failure
of any person responsible for furnishing the report required by
this division to furnish such report unless such failure is an act
or omission which would be sufficient ground for the rescis-
sion of such sale or exchange in the absence of this division.
2008 CITY OF LOS ANGELES BUILDING CODE
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SECTIOM 96,309.1
won
Any contract for the sale or exchange of residential property
subject to the provisions of this division, including escrow con-
tracts, shall not be invalidated as a result of the information fur-
nished in said report unless it reveals a material
misrepresentation or concealment by the owner or unless it
reveals a material mistake by both owner and prospective buyer
or transferee which would justify a rescission of the sale or
exchange in the absence of this division. Should such report
reveal such misrepresentation, concealment, or mistake, the
sale or exchange may be rescinded or cancelled at the option of
the buyer or transferee.
•
754 2008 CITY OF LOS ANGELES BUILDING CODE
CHAPTER IX, ARTICLE 8
GENERAL ADMINISTRATIVE PROVISIONS
SECTION 98.01 03
DEFINITIONS
(a) General. For the purpose of this article, certain words and
tenns are defined as follows:
BOARD. The Board of Building and Safety Commission-
ers of the City of Los Angeles.
BOARD OF EXAMINERS. Any examining hoard regu-
larly appointed by the Board of Building and Safety Com-
missioners or the Superintendent.
CODE. Los Angeles Municipal Code.
E-PERMITS. Any Express Permits issued via facsimile or
Internet.
EXAMINER. A member of an examining board as herein-
after provided for, or any person designated by the Board or
the Superintendent to conduct any hearing provided for in
this article.
EXPRESS PERMITS. Any Building, Electrical, Mechan-
ical or Plumbing permits that do not require plans pursuant
to Section 91.106.3.2.2 of this Code.
LICENSE. A certificate, registration, license, authority or
approval given or issued by the Department pursuant to the
provisions of this Code.
LICENSEE. The holder of any license as the word 'li-
cense" is defined in this article.
SUPERINTENDENT OF BUILDING OR SUPERIN-
TENDENT. The General Manager of the Department of
Building and Safety of the City of Los Angeles, or his duly
authorized representative.
DEPARTMENT. The Department of Building and Safety.
PARTY. Includes the Board, the Department, the respon-
dent, and any other person who has an interest or estate in a
proceeding under this article.
RESPONDENT. Any person against whom an accusation
is filed pursuant to this article.
PERMIT. An approved application for the inspection of
any work accomplished on or in buildings, structures or
sites regulated by Chapter 9 of the Los Angeles Municipal
Code, but shall not include an application for inspection to
obtain a Certificate of Inspection and Permit to Operate.
PLAN CHECK. The review of plans, specifications,
and/or details required as condition prior to the issuance of a
permit.
PROCEEDING. Any process relative to a hearing as pro-
vided in this article.
SLIGHT MODIFICATION. A waiver, granted by the
Superintendent or the Board, of the strict requirements of
the provisions of Chapter 9 or Chapter I, Article 2 of the Los
Angeles Municipal Code.
Where the word "Examiner" or "Hearing Examiner"
appears hereinafter, the words "Board of Examiners" may be
substituted.
SECTION 98.0105
INSPECTIONS
(a) Whenever it is necessary to make an inspection to enforce
any of the provisions of or perform any duty imposed by
this chapter or other applicable law, or whenever the
Superintendent of Building or his authorized representa-
tive has reasonable cause to believe that there exists in any
building or upon any premises any violation of the provi-
sions of this chapter, or other applicable law, or any condi-
tion which makes such building or premises hazardous,
unsafe or dangerous, the Superintendent of Building or his
authorized representative is hereby authorized to enter
such property at any reasonable time and to inspect the
same and perform any duty imposed upon the Superinten-
dent of Building by this chapter or other applicable law,
provided that:
(1) If such property be occupied, he shall first present
proper credentials to the occupant and request entry
explaining his reasons therefor; and
(2) If such property is unoccupied, he shall first make a
reasonable effort to locate the owner or other person
having charge or control of the property and request
entry, explaining his reasons therefor. If such entry
is refused or cannot be obtained because the owner
or other person having charge or control of the prop-
erty cannot be found after due diligence, the Super-
intendent of Building or his authorized
representative shall have recourse to every remedy
provided by law to secure lawful entry and inspect
the property.
(b) Notwithstanding the foregoing, if the Superintendent of
Building or his authorized representative has reasonable
cause to believe that the building or premises is so hazard-
ous, unsafe or dangerous to require immediate inspection
to safeguard the public health or safety, he shall have the
right to immediately enter and inspect such property, and
may use any reasonable means required to effect such
entry and make such inspection, whether such property be
occupied or unoccupied and whether or not permission to
inspect has been obtained. If the property be occupied, he
shall first present proper credentials to the occupant and
demand entry, explaining his reasons therefor and the pur-
pose of his inspection.
(c) No person shall fail or refuse, after proper demand has
been made upon him as provided in Subsection (b) of this
section, to promptly permit the Superintendent of Build-
ing or his authorized representative to make any inspec-
tion provided for by Subsection (b) of this section. Any
2008 CITY OF LOS ANGELES BUILDING CODE
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EXCERPTS FROM RELATED LOS ANGELES CITY CODES
person violating this subsection shall be guilty of a misde-
meanor.
(d) The applicant, by accepting any permit issued pursuant to
this chapter, does thereby consent and agree to the entry
upon the premises described in the permit by Department
personnel for the purpose of conducting such inspections
as are required by this chapter or other applicable laws.
SECTION 98.0109
EXPRESS PERMITS
(a) Guiaramteed Express Permit program (GEP). The
Department shall offer a walk-in Express Permit customer
a money-back guarantee if:
(1) the customer waits longer than 30 minutes for ser-
vice to begin; or
(2) the customer waits longer than 60 minutes for the
processing of the permit from the time that service
begins.
(b) Gearamteed Express Permit (GEP) program guide-
lines. If a customer waits longer than the time limits stated
in Section 98.0109 (a), and the wait can be verified by the
Department through the use of electronic equipment, then
the Department shall waive the permit fee.
(c) Program limitations. The GEP applies only to those per-
mits issued at the Express Permit Counter. The Depart-
ment may add or delete certain permit types from the list of
Express Permits at its discretion. GEP does not apply to
E-Permits and is limited to one permit per person, per per-
mit application. GEP does not apply to those permits
requiring clearance or review by other agencies. The GEP
program shall be suspended during power failures, com-
puter system failures, or during times of emergency
including, but not limited to, fire, earthquake, or other
manmade or natural disaster.
756 2008 CITY OF LOS ANGELES BUILDING CODE
DIVISION 4 - APPEALS ANP REQUEST FOR SLIGHT MODIFICATION
APPEAL FEES - AVAILABILITY OF RECORDS FOR INSPECTION -
BOARD RELATED SERVICES - INVESTIGATION -
POWERS OF DEPARTMENT AND BOARD AND PENALTIES
SECTION 98.0402
CODE ENFORCEMENT COSTS INCURRED:
INVESTIGATION COSTS, FEES AND FINES
(a) Investigation fee required. Whenever any work has been
commenced without authorization by a permit or appUca-
tion for inspection, and which violates provisions of Arti-
cles 1 through 8 of Chapter IX of the Los Angeles
Municipal Code, and if no order has been issued by the
Department or a court of law requiring said work to pro-
ceed, a special investigation shall be made prior to the
issuance of any permit, license or application for inspec-
tion. An Investigation Fee which shall be double the
amount charged for an application for inspection, license
or permit fee, shall be collected on each permit, license or
application for inspection so investigated. The fee
required by this subsection shall be in addition to any other
fees required by the above referenced codes Articles 1
through 8 of Chapter IX of the Los Angeles Municipal
Code. In no event shall the Investigation Fee be less than
$400.00.
The payment of the Investigation Fee shall not exempt
any person from compliance with the provisions of the
code nor from any penalty prescribed by law.
(b) Collection fee for delinquent invoice for boilers, pres-
sure vessels, elevators and emergency systems. When-
ever an owner or user of any apparatus, equipment or
emergency system fails to pay the fees required by Sec-
tions 92.0126, 92.0129(d), 92.0132(b), (d) and (e),
93.0235 and 97.0314 within 60 days after notification, the
owner or user shall pay, additionally, a collection fee equal
to 50% of the required fee specified under Sections
92.0126, 92.0129(d), 92.0132(b), (d) and (e), 93.0235 and
97.0314.
(c) An investigation fee of $ 1 5.00 per report shall be charged
and collected for each boiler or pressure vessel insurance
report not submitted as required by Section 97.0318. This
investigation fee shall become due 30 days after the date
the inspection has been performed and remains unreported
and is in addition to the insurance processing fee.
(d) Non-compliance inspection fee required. See Section
98.0411.
(e) Annual inspection fee. Whenever the Department of
Building and Safety makes annual inspections pursuant to
Sections 12.26 F.3., 12.26 1.5. and 13.03 of the Los
Angeles Municipal Code (or any other provision of this
Code) the Department shall collect a fee for inspection of
each "recycling center" and "yard" as defined in Section
12.26 F.I., each vehicle "repair garage" and "used vehicle
sales area" as defined in Section 12.26 1.I., and each "sur-
face mining operation" as defined in Section 13.03 B., the
annual inspection fees shall be as follows:
1 . For each recycling center, yard, repair garage
or used vehicle sales area $355.00
2. For each surface mining operation a fee of. . $265.00
(f) The Department shall collect an amount levied by penalty
fine from every owner or operator of a yard, repair garage
or used vehicle sales area, as described in Subsection (e)
above, for the following violations of the Los Angeles
Municipal Code:
1. Repeat Violation. Pursuant to Sections 12.26 F.15.
and 12.26 1.18. of the Los Angeles Municipal Code, a
penalty fine of $200.00 shall be levied when cited in a
subsequent notice to comply for the same violation.
2. Notice of Revocation.
A. Pursuant to Section 12.26 F. 14. oiiht Los Angeles Munic-
ipal Ccxie, penalty fines shall be levied for the following
recycling center and yard violations as specified in the
notice of intent to revoke:
(i) Required wall or fencing in disrepair . . . $750.00
(ii) Vehicle or other material stacked or piled
above the height standards as specified in
this Code $750.00
(iii) Storage of vehicles or other materials outside
of the required walls or fences surrounding
the yard $750.00
(iv) Failure to provide or maintain the required
minimum number of parking spaces $750.00
(v) Dismantling, repairing, wrecking, modifying,
processing, stripping, or otherwise working on
any vehicles or other automotive parts, or materials
outside the required waU or fence $750.00
(vi) All other violations $300.00
B. Pursuant to Section 12.26 1.17. of ih& Los Angeles Munici-
pal Code, fines shall be levied for the following repair
garage and used vehicle sales violations as specified in the
notice of revocation:
(i) Failure to provide and maintain required
walls or fences $750.00
(ii) Failure to provide and maintain a fully enclosed
building for body and fender repair $750.00
(iii) Failure to provide and maintain an approved
spray booth within an enclosed building . . . $750.00
2008 CITY OF LOS ANGELES BUILDING CODE
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EXCERPTS FROM RELATED LOS ANGELES CITY CODES
(g)
(iv) Failure to provide and maintain a building
enclosed on three sides for repairs other than
body and fender . $750.00
(v) Failure to provide and maintain a building
required for the operation of any vehicle
hoists $750.00
(vi) Failure to maintain open and accessible
customer parking $750.00
(vii) Failure to pay annual inspection fee within
60 days of assessment $750.00
(viii)Failure to provide vehicle record when
requested $750.00
(ix) All other violations of the provisions of the
Municipal Code $300.00
In addition to any other remedy provided by law, the City
may collect any judgment, fee, cost, or charge, including
any permit fees, fines, late charges, or interest, incurred in
relation to the provisions of this section as provided in Los
Angeles Administrative Code Sections 7.35.1 through
7.35.8.
SECTION 98.0403.1
ERS OF THE DEPARTMENT AND THE BOARD
(a) Powers off the Department.
1. The Department is granted the power to enforce all
ordinances and laws relating to the construction,
alteration, repair and demolition, or removal of
buildings or structures in the City, and to the instal-
lation, alteration, repair, use, and operation of all
heating, plumbing, lighting, ventilating, refrigerat-
ing, electrical and mechanical appliances and equip-
ment in those buildings or structures.
2. The Department is granted the power to enforce all
ordinances and laws relating to the construction,
alteration, repair, removal or installation of eleva-
tors, escalators, console and/or stage lifts, incline
cars, manlifts, manhoists, steam boilers, pressure
vessels and all connections and appurtenances per-
taining to their proper functioning.
3. The Department is granted the power to enforce the
zoning ordinances of the City.
4. The Department shall have the power and duty to
enforce all ordinances and laws relating to grading
and control of excessive dust emission.
5. The Department shall have the power and duty to
enforce all portions of the Rules and Regulations of
the State Fire Marshal which relate to the construc-
tion, alteration, repair, demolition, or removal of
buildings, or structures, and to the use and operation
of all heating, plumbing, lighting, ventilating,
refrigerating, electrical, and mechanical appliances
therein. Provided, however, that no application for
modification of specific provisions of the Rules and
Regulations of the State Fire Marshal shall be
granted by the Department, unless and until such
appUcation shall be first submitted to the Chief
Engineer of the Fire Department or his representa-
tive for report and recommendation with respect
thereto.
6. The Department shall have the power to enforce
those building regulations mandated by State or
Federal law to be enforced by the local building
Department or building official.
7. The Department shall have the power to enforce
States laws relating to buildings, structures and con-
struction activities provided the authority to do so
has been allowed or granted by the State and the
Department has determined to undertake such
enforcement.
8. The Department shall have the power to enforce
other ordinances and laws when designated to do so
by law.
9. In the exercise of the powers enumerated in this sub-
section, the Department shall have the power to
apply the building ordinances of the City (Chapter 9
of the Code) and those building regulations man-
dated by State law to be enforced by the local
agency, building Department or building official to
buildings and structures containing one or more air
space lots as defined in Chapter 1, Article 2, of the
Code so as to treat the entirety of such buildings or
structures as if they were on or within a single lot,
provided:
i. That such buildings or stmctures or portions
thereof would otherwise conform to such ordi-
nances and regulations, but for the creation of
such air space lots; and
ii. That a covenant and agreement, in a form
designed to run with the land and satisfactory to
the Department be recorded with the Office of
the County Recorder and a copy filed with the
Department by the owners binding themselves
and future owners and assigns to keep, preserve
and maintain all portions of such buildings or
structures in accordance with and pursuant to
such building ordinances and regulations.
10. The Department shall have the power to hear and act
upon requests for slight modifications in individual
cases to the building ordinances of the City, and reg-
ulations under Articles 1 through 8 of Chapter IX of
the Los Angeles Municipal Code.
In granting a request for a slight modification, the
Department shall determine that the slight modifica-
tion is reasonably equivalent to the ordinance
requirement involved, that a special individual rea-
son makes the strict letter of the ordinance impracti-
cal and that the slight modification is in conformity
with the spirit and purpose of the code or codes
involved.
11. The Department shall have the power to hear and
determine requests for slight modifications for indi-
vidual cases in the yard area requirements of the
758
2008 CITY OF LOS ANGELES BUILDING CODE
EXCERPTS FROM RELATED LOS ANGELES CITY CODES
zoning ordinance, provided that in each such modi-
fication, the Superintendent shall first find that a
special, individual reason makes the strict letter of
the ordinance impractical and that the modification
is in conformity with the spirit and purpose of the
ordinance involved. Any action granting a modifi-
cation shall be recorded and entered in the files of
the Department.
For structures and additions constructed after
January 1, 1995, slight modifications from the yard
requirements shall be limited to deviations permit-
ting portions of buildings to extend into a required
yard or other open space a distance of not to exceed
20 percent of the width or depth of such required
yard or open space. However, for structures and
additions existing prior to January 1, 1995, slight
modifications may be granted for yard deviations
slightly over 20 percent.
Except as expressly provided herein, the Superin-
tendent of Building shall not grant deviations from
the lot area, height, or density requirements. Fur-
ther, the Superintendent shall not grant deviations
from the yard requirements relating to the height of
fences and walls, or including those for tennis or
paddle tennis courts and other game courts.
If the yard regulations cannot reasonably be com-
plied with or it is difficult to determine their applica-
tion on lots of peculiar shape or location, then the
regulations may be modified or determined by the
Superintendent of Building. The Superintendent
may also waive all or part of the required loading
space on unusually shaped lots, oddly located lots,
or hillside lots, when such space cannot reasonably
be provided or utilized.
Requests for yard modifications as provided in
this subsection shall be made in accordance with the
procedures established in Section 98.0403.2 of the
Los Angeles Municipal Code.
12. The Department shall have the power to enforce any
administrative nuisance abatement determination
made by the Zoning Administrator, former Board of
Zoning Appeals, City Planning Commission, Direc-
tor of Planning or City Council. There shall be no
administrative appeal to any City official or Board
from such an enforcement action by the Depart-
ment.
(b) Powers of the Board.
1. The Board shall have the power to hear and act upon
appeals filed by any person aggrieved by the Depart-
ment requesting a slight modification under this sec-
tion, except for those actions permitted in subsection
(a)ll.
If the Board grants a slight modification on appeal,
then the Board shall make the same findings as
required by the Department when acting on a slight
modification.
2. The Board shall have the power to hear and determine
appeals from orders, interpretations, requirements,
determinations, or actions of the Department pertain-
ing to enforcement of specific ordinances, regula-
tions, or laws in site-specific cases. These appeals
shall state how the Department has erred or abused its
discretion in the matter of the appeal. The Department
shall provide the Board with a written report on the
appeal. The Department, however, msiy reverse or
modify the action appealed at any time prior to final
action by the Commission. The Board shall hear and
make its determination on the appeal no later than the
30th calendar day after the appeal is heard.
Notwithstanding the above, the Board shall have
no authority to hear and determine appeals from
orders, interpretations, requirements, determinations,
or actions of the Department pertaining to enforce-
ment of specific ordinances, regulations, or laws con-
tained in Chapter I of this Code and in other land use
ordinances. Any appeal concerning these require-
ments shall be made to the Director of Planning in
accordance with the provisions set forth in Section
12.26 K.
The Department shall maintain a file of requests
from individuals or groups who wish to be notified of
certain determinations on individual job addresses.
These requests shall be submitted to the Department
in writing and shall specify the subject job address,
and the address and telephone number where they
wish to be notified. The request shall be in force until
the end of the calendar year in which the request is
filed and the request may be renewed at any time dur-
ing the subsequent calendar year.
The Department shall provide a copy of board
agendas by U.S. mail to individuals or groups who
wish to receive them. The mailing of agendas shall be
maintained by a yearly subscription fee of $50.00. A
subscription fee of $25.00 will be charged if there is
less than six months remaining in the calendar year.
Fees for individual and/or mail requests for copies of
board agendas and other documents shall be as set
forth in Los Angeles Administrative Code Sections
12.31 and 12.32.
3. The Board shall have the power to act in other situa-
tions as provided by ordinance or law.
4. The Board shall have the power to refuse to hear an
appeal if the Board determines that the appeal is basi-
cally a restatement of a previous appeal on the same
job and no substantial additional justification has
been presented by the appellant.
5. The power of the Board shall not include the right to
hear and act upon any of the following:
i. An appeal from the Department's action on a
request for a slight modification, an appeal of
a legitimate Department order or an appeal
objecting to the Department's determination,
if such appeal is:
2008 CITY OF LOS ANGELES BUILDING CODE
759
EXCERPTS FROM RELATED LOS ANGELES CITY CODES
a) Filed on or after the date a citation is
issued charging a person with a violation
of the Code or any other ordinance or law
enforced by the Department, and the
appeal in any way involves the citation
issuance, an arrest associated with the
citation issuance, or the facts or Code
issues underlying the citation issuance.
b) Filed on or after evidence of a violation of
the Code or any other ordinance or law
enforced by the Department is presented
to and accepted by the City Attorney for
criminal prosecution.
If an appeal or request for a slight mod-
ification is not filed with 1 5 days after the
Department's action on the violation, the
action and/or determination of the
Department shall be final.
ii. An appeal in violation of limitations placed
upon the Board's powers as specified in other
ordinances, regulations, or law.
iii. Repealed.
iv. If the Board or Superintendent determines
that an appeal or request for a slight modifica-
tion, filed with the Board, relates to Depart-
ment enforcement of laws or access to public
accommodations and housing by the physi-
cally handicapped, then the matter shall be re-
ferred to the Handicapped Access Appeals
Commission for its action. The Board' s juris-
diction shall not include the right to hear ap-
peals from or otherwise review any action,
order, or deteraiination of the Handicapped
Access Appeals Commission.
V. An appeal dealing with financial, personnel,
or administrative issues or other similar mat-
ters.
vi. An appeal seeking relief from any nuisance
abatement determination or enforcement de-
cision of the Department relating to any ad-
ministrative nuisance abatement
determination made by the Zoning Adminis-
trator, former Board of Zoning Appeals, City
Planning Commission, Director of Planning
or City Council.
ICJIOH 98.0403.2
FOR APPEALS TO T&
DEPARTMENT AND TO THE BOAR!
IE
(a) Appeals to the department eeder power granted in
section 98.0403.1,
1 . Such appeals shall be made in writing, upon appropri-
ate forms provided therefor by the Department.
2. An appeal processing fee of $100.00 for the first item
and $30.00 for each additional item shall be paid by
the appellant prior to the Department processing the
appeal and making a determination.
In addition to the appeal processing fee required by
this subdivision, an inspection fee of $65.00 shall be
paid by the appellant when, in the opinion of the
Department, the appeal requires a field inspection to
verify site conditions.
An additional inspection fee as described in Sec-
tion 98.0412(a) may be charged by the Department
for each inspection necessary to verify compliance
with the conditions established by the determination
of the Department.
Exceptions:
A. No appeal fee shall be required on any
appeal from an order arising from an
area- wide survey, conducted by the Depart-
ment, of buildings used for one family hous-
ing, if the work required to bring the unit into
compliance with the Los Angeles Municipal
Code is the same as specified in the order.
B. No appeal fee shall be required for any
appeal on a child-care facility if the owner or
operator is a nonprofit child-care organiza-
tion that has filed a notarized affidavit to that
effect with the Department.
3. If the Superintendent determines that an item of
request involves a material, device or method of con-
struction appropriate for a General Approval under
Section 98.0501 of the Los Angeles Municipal Code,
such request shall be accompanied by a filing fee of
$165.00 for each request submitted which includes
such item.
A supplemental fee as specified in Section
98.0501(b)4 shall be charged to cover processing
time in excess of one hour. If the Department deter-
mines that the material submitted with the appeal
request substantiates the claim made therein, and no
request to hold a hearing is pending the Department
may grant a conditional approval of such request.
4. In any appeal the appellant making the request shall
cause to be made, at the appellant' s own expense, any
tests required by the Department to substantiate the
claims therein.
5. The Department may hold any hearings it deems
appropriate to consider the appeal.
(b) Appeals to the board under the power granted by sec-
tion 98.0403.1 (b).
1 . Such appeals shall be made in writing, upon appropri-
ate forms provided therefor by the Department.
2. Appeals shall be accompanied by a fihng fee based
upon the subject of the request as set forth in Tables
4- A or 4-B of this division.
Exceptions:
A. No filing fee shall be required on any appeal
from an order arising from an cirea-wide sur-
A
w
•
760
2008 CITY OF LOS ANGELES BUSLDING CODE
EXCERPTS FROM RELATED LOS ANGELES CITY CODES
vey, conducted by the Department, of build-
ings used for one family housing, if ihe work
required to bring the unit into conipliance
with the Los Angeles Municipal Code is the
same as specified in the order.
B. No filing fee shall be required for any appeal
on a child care facility if the owner or opera-
tor is a nonprofit child care organiza!tion that
has filed a notarized affidavit to that effect
with the Department.
3 . If the Board determines that evidence is required to be
taken or that further investigation is necessary to
decidfe any such appeal, the Board may refer the mat-
ter to a hearing examiner for hearing and report in
accordance with provisions of Charter Section 217. or
to an ordinance-established advisory board, or may
refer the matter to the Department for further investi-
gation and report, whichever the Board deems most
appropriate.
4. In any appeal, the appellant or person making such
request shall cause to be made, at the appellant's own
expense, any tests required by the Board to substanti-
ate the claims therein.
5. In addition to any other appeal fees required by this
subsection, each appeal shall be accompanied by an
inspection fee of $65.00 when, in the opinion of the
Department, the appeal requires a field inspection to
verify site conditions. The Department may charge an
additional inspection fee as specified in Section
98.0412(a) for each inspection necessary to verify
compliance with the conditions established by the
Board in any approval or conditional approval.
SECTION 98.0404
EXTRA TERRITORIAL INSPECTIONS
(a) The Department of Building and S afety may make inspec-
tions outside the territorial boundaries of the City of Los
Angeles when the Superintendent of Building determines
that such inspection is necessary for the City's public
health, safety or general welfare. Such inspections may
include the inspection of items intended to be used in
building construction or as building equipment in the City
of Los Angeles. Employees of the Department of Building
and Safety shall inspect such items that are manufactured
or fabricated during the process of such manufacturing or
fabrication in accordance with the requirements of the Los
Angeles Municipal Code.
(b) The Superintendent shall adopt reasonable rules and regu-
lations governing such inspections made outside the City
boundaries.
SECTION 98.0405
CHARGES FOR PRINTED MATERIALS AND
MISCELLANEOUS TYPE SERVICES
The Department shall charge and collect the following
amounts for the items shown in Table 4-C prior to providing
such materials and/or service to members of the public. The
charges herein established shall be sufficient to fully
compensate the City for all expenses incurred in the
preparation, production, handling and distribution of the items
listed and including general overhead expenses. The
Superintendent of Building shall periodically review such
charges to insure that all applicable expenses to the City are full
compensated.
TABLE NO. 4-A
FILING FEES* FOR APPEALS
GROUP OCCUPANCY
FIRST ITEM FOR SINGLE BUILDING TYPE OF BUILDING"
Each Additional Item
V
IV & ll-N
III
1 & II Except ll-N
R-3<&U
$155
$155
$155
$155
$55
A, B, E, F, H, I, M, S &
R-1 &R-2
255
255
255
455
155
All other filing fees not covered in the above schedule including appeals pursuant to Los Angeles Municipal Code Section 12.27, shall be
$250.00 for the first item and $ 1 50.00 for each additional item.
* See Section 91.105.4 for fees for referral to the Sign Advisory Committee.
** Accessory building, structures or appendages will be considered the same as main building and occupancy.
TABLE NO 4-B
FILING FEES* FOR APPEALS GRADING AND SOIL REQUIREMENTS
NUMBER OF LOTS
CONSTRUCTION REQUIREMENTS
UNSTABLE SOIL OF GEOLOGY
EACH ADDITIONAL ITEM
1-5 lots
$280
$480
$115
6 or more lots
580
880
280
* See Section 91.105.3 for fees for referrals to the Engineering Geology Advisory Committee.
2008 CITY OF LOS ANGELES BUILDING CODE
761
EXCERPTS FROM RELATED LOS ANGELES CITY CODES
TABLE 4-C
CHARGES FOR PRINTED MATERIALS
ITEM
CHARGE
"Certificate of Inspection and Permit to Operate Steam Boiler or Pressure Vessel" Form M-1
$11.00 pad (100)
"Research Report Index"
$30.00 per copy
INSPECTION FEES FOR OFF HOURS INSPECTION
The Department may, at its discretion, make inspections at
other than normal working hours upon application therefor by
a permittee. A fee in addition to fees charged elsewhere in this
Code, at a rate of $100.00 per hour shall be charged for such
inspection, time to include travel to and from lace of inspection,
with a minimum of $300.00.
^TION 98.0407
CEMENT PROCEDUI
SE FEES
Whenever special enforcement procedures are required to
obtain compliance with properly executed Departmental
orders that apply to application for inspection of Construction
Permits, a fee of $32.00 shall be assessed in addition to fees
specified elsewhere in the Municipal Code.
SECTION 98.0408
ISSUANCE OF CITATIONS BY DESIGNATED
EMPLOYEES
(a) In the performance of their duties, Senior Safety Engi-
neers-Pressure Vessels, Senior Safety Engineers-Elevators,
Safety Engineers-Pressure Vessels, Safety Engineers-Ele-
vators, Senior Electrical Equipment Testers, Electrical
Equipment Testers, Equipment Safety Investigators, Elec-
trical and Mechanical Engineering Assistants, Building
Electrical and Building Mechanical Engineering Associ-
ates assigned to the Electrical and Mechanical Test Labora-
tories, and Senior Inspectors and Inspectors in the
classifications of Building, Building-Mechanical, Electri-
cal, Heating and Refrigeration and Plumbing shall have the
power, authority and immunity of a public officer or
employee, as set forth in CaUfomia Penal Code Section
836.5, to make arrests without a warrant whenever he or she
has reasonable cause to believe that the person to be arrested
has committed a misdemeanor or an infraction in his or her
presence in violation of an ordinance or statute which such
employee has the duty to enforce. Those ordinances or stat-
utes shall include any law set forth in Subsection (b) of this
section. In accordance with Section 11.06 of the Los
Angeles Municipal Code, in any case in which a person is
arrested pursuant to this authority and the person arrested
does not demand to be taken before a magistrate, the public
officer or employee making the aiTcst shall prepare a writ-
ten notice to appear and shall release the person on his or her
promise to appear as prescribed by Sections 853.5 and
853.6 of the California Penal Code. If such person signs the
written notice to appear, thereby promising to appear, he or
she shall not be taken into physicjil custody.
(b) Any person designated in Subsection (a) of this section
shall have the power, authority and immunity of a public
officer or employee under California Penal Code Section
836.5 to make arrests without a warrant whenever he or
she has reasonable cause to believe that the person to be
arrested has committed a misdemeanor or an infraction in
his or her presence which is a violation of any of the fol-
lowing Los Angeles Municipal Code Sections:
41.14 62.51 l.(e) 66.25
41.45 62.79 67.02(a)
42.00 62.80 80.73(b)2.A.(4)
56.08 62.96(a) 80.73(b)2.C„ D., E.
56.11 62.130 85.01(a)
62.45(b) 64.30 with respect to storm drain 114.04
62.49(a) systems and waters of the State \ 14.05
or a violation of State of California Penal Code Section
556 or 556.1.
(c) Those persons designated in Subsection (a) of this section
are hereby authorized to issue parking citations as provided
for in Section 80.00 of the Los Angeles Municipal Code for
the violation of Municipal Code Sections 80.53, 80.56,
80.73(b)2.A.(l), (2), (3), 80.73(b)2.R, 80.73.2, 80.77 and
85.01(b) and California Vehicle Code Section 22500(f).
SECTION 98.0410
SURCHARGE FOR ONE-STOP PERMIT CENTER
There shall be added to the total of all fees imposed for any per-
mit, plan check, license, application, report, and inspection
provided for in Articles 1 through 8 of this chapter (Excluding
Sections 91.6205.18, 91.107.4.4, 91.107.4.6, 98.0402,
98.0411, 98.0416, 98.0418 and 98.0716 of this Code a sur-
charge in an amount equal to the greater of two percent of the
fees or one dollar.
SECTION 98.0411
NON-COMPLIANCE FEES
(a) Noncompliance fee. If, in the course of enforcing any state
law or local ordinance, the Department issues an order to a
person and the person fails to comply with that order within
15 days following the due date for compMance specified in
the order and any extension thereof, then the Department
shall have the authority to collect a noncompliance fee.
The purpose of this fee is to recover a portion of the cost
of any additional inspection and administrative or appeal
proceedings incurred by the Department in order to enforce
the Code or secure compliance with the order. No more than
one such fee shall be collected for failure to comply with an
order. This noncompliance fee shall be in addition to fees
specified elsewhere in the Los Angeles Municipal Code.
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2008 CITY OF LOS ANGELES BUlLDtNG CODE
EXCERPTS FROM RELATED LOS ANGELES CITY CODES
The Department shall not impose a noncompliance fee
unless the order states that "a proposed noncomphance fee
may be imposed for failure to comply with the order
within 15 days after the compliance date specified in the
order or unless an appeal or slight modification is filled
within 15 days after the compliance date".
Excejftion: If a person against whom an order is
issued appeals that order within 15 days after the com-
pliance date set forth in the order, then the Department
may riot impose a noncompliance fee until a final
appeal determination upholding or modifying the
underlying Department order has been made. The
Department may then impose a noncompliance fee
only for failure to comply with the final appeal deter-
mination within 15 days after the compliance date or
dates specified in the determination.
(b) Appeal. Any person served with an order and notice of
proposed non-compliance fee may appeal the order and
proposed imposition of the non-compliance fee or request
a slight modification pursuant to the procedures Set forth
in Section 98.0403.1 of this Code.
The Dei)artment or the Board may rescind or modify the
proposed non-compliance fee under the authority granted
by Section 98.0403. 1 of this Code.
If the appeal or request for slight modification is not filed
within 15 days after the compliance date or extensions
granted therefrom, the determination of the Department to
impose and collect a non-compliance fee shall be final.
(c) Collection of the Noncompliance Fee. If the Department
determines pursuant to Subsections (a) and (b) of this sec-
tion that a noncompliance fee is due, then it shall notify the
person cited, by United States mail in a sealed envelope,
with postage paid, addressed to the last known address of
the person cited as that address appears in the last equal-
ized assessment roll. The notice of noncompliance fee
shall state that:
"if the noncompliance fee incurred is not remitted to the
Department within 30 days after the date of mailing of this
notice, the Department shaU impose a late charge equal to
two times the noncompliance fee and a collection fee equal
to 50 percent of the original noncompliance fee. Any person
who fails to pay the noncompliance fee, late charge or col-
lection fee shall also pay interest. Interest shall be calculated
at the rate of one percent per month, or fraction of a month,
on the amount of the noncompliance fee, late charge and
collection fee imposed, from the 60th day after the date of
mailing of this notice until the date of payment."
Service of the notice of noncompliance fee shall be
deemed to have been completed at the time of deposit in
the United States mail.
The person cited shall remit the noncompliance fee to
the Departhient within 30 days after the date of mailing the
notice of noncompliance fee. If the person cited fails to do
so, then the Department may demand payment of the non-
compliance fee from the person cited and may withhold
the issuance of building permits, licenses or approvals to
the cited person until the noncompliance fee has been paid.
A late charge equal to two times the noncompliance fee
and a collection fee equal to 50 percent of the original non-
compliance fee shall be imposed if the fee is not paid
within 30 days after the date of mailing the notice of non-
compliance fee. Any person who fails to pay the noncom-
pliance fee, late charge or collection fee shall also pay
interest. Interest shall be calculated at the rate of one per-
cent per month, or fraction of a month, on the amount of
the noncorhpliance fee, late charge and collection fee
imposed, from the 60th day after the date of mailing the
notice of noncompliance fee until the date of payment.
Any partial payments of the noncompliance fee, late
charge, collection fee or interest received shall be applied
first to interest, then late charge and collection fee, and
lastly to the noncompliance fee.
The City shall have the right to bring legal action in any
court of competent jurisdiction to enforce the order and
collect the amount of these fees. In addition to any other
remedy provided by law, the City may collect any judg-
ment, fee, cost, or charge, including any permit fees, fines,
late charges, or interest, incurred in relation to the provi-
sions of this section as provided in Los Angeles Adminis-
trative Code Sections 7.35.1 through 7.35.8.
(d) The amount of the non-compliance fee shall be as shown
in Table No. 4 D.
TABLE NO. 4-D
NONCOMPLIANCE INSPECTION FEES
RESIDENTIAL BUILDINGS
Item
Fee
Single-family dwelling or the first dwelling unit or
guest room on the premises
$100.00
Each additional dwelling unit or guest room on the
premises up to 10 units total
90.00
Each dwelling unit or guest room in excess of 10 units
70.00
NONRESIDENTIAL BUILDINGS
Floor Area
Fee
- 2,500 square feet
$325.00
2,501 - 5,000 square feet
425.00
5,001 - 7,500 square feet *
525.00
7,501 - 10,000 square feet
625.00
Each additional 5,000 square feet or fraction thereof
125.00
GRADING
Item
Fee
Class I Slope Failure '
$2500.00
Class II Slope Failure
2000.00
Class III Slope Failure
1500.00
Other Grading Code Violations
1000.00
MISCELLANEOUS
Item
Fee
Banners, construction equipment, licenses, other
structures, signs, uses and yards
$100.00
1. Refer to Section 91.7003 for definition of slope failure classification.
2008 CITY OF LQS ANGELES BUILDING CODE
763
EXCEBPTS FROM RELATED LOS ANGELES CITY CODES
SECTDON 9
iNSPECTION FEES .
The following fees when referenced to this section by other
sections of Chapter IX oftheLos Angeles Municipal Code shall
be collected by the Department for the following types of
inspections:
(a) Minimum inspection fee ' $65.00 per inspection
(al) Single fixtures ^ $40.00 per inspection
Exception; No permit or inspection shall be required for
the installation or replacement of garbage disposals
within individual dwelling units.
(b) Additional inspection 65.00 per inspection
(c) Miscellaneous permits or inspections ..... 65.00 each
(d) Special equipment
inspection 75.00 per hour or fraction thereof
(e) Off-site
inspection 75.00 per hour, minimum $200.00
(f) Witnessing performance
test 75.00 per hour or fraction thereof
1 . When the cumulative fees set forth in this Code are less than the minimum
fee, the minimum fee shall be paid which shall include the issuing fee.
2. llie fee for single fixture shall apply to the installation of only one electrical,
plumbing or mechanical fixture / equipment and shall include the issuing
fee.
CERTIFlCATiOfSI FEES
Before accepting for filing any application for a Certificate of
Qualification or a Maintenance Certificate of Registration, the
Department shall collect from the applicant the following fees :
(a) Certification of Qualification
1. Initial application fee $50.00
2. Subsequent application and
examination fee 50.00
3. Annual renewal fee 25.00
(b) Maintenance Certificate of Registration
1. Initial certificate fee 150.00
2. Annual renewal fee 150.00
SEC1
CLERICAL, ISSUBNG OR RESEARCH FEES AND ■
MISCELLANEOUS FEES
The Department may collect a fee from the applicant for the
following types of services:
(a) Correction of address for permit $25.00
(b) Transfer of name of permittee to any
other person , 35.00
(c) Permit issuing fee for:
Electrical, plumbing, mechanical and
elevator permits 17.00
Building permits 20.00
(d) Supplementary permit issuing fee 14.00
(e) Supplementary/miscellaneous plan
check fee $75.00 per hour or portion thereof
(f) Fee for report ^ . . . . $75.00 per hour or portion thereof
A minimum fee of $75.00 shall be payable when a request for a written
report on a property or code item is made and any bcilance shall be due prior
to the release of the report. Written reports for which this fee is applicable
shall include, but not limited to, interpretation of the public records for the
property (document research), termination of covenants and agreements,
written interpretation of codes (municipal and/or other codes and regula-
tions) and issuance of reports seeking the status of code violations, permitted
use, etc. of a property or other similar purposes.
SECTION 98.04116
BUILDING AND SAFETY SYSTEIVIS
DEVELOPMENT SURCHARGE
There shall be added to the total of all fees imposed for any per-
mit, plan check, license, application, report and inspection pro-
vided for in Articles 1 through 8 of this chapter excluding
Sections 91.6205.18, 91.107.4.4, 91.107.4.6, 98.0402(f),
98.0410, 98.0411, 98.0416, 98.0418 and 98.0716 of this Code
a surcharge in the amount equal to the greater of six per cent of
the fee or one dollar. All monies received from this surcharge
shall be deposited to and expended as the "Building and Safety
Systems Development Account" of the Department of Build-
ing and Safety Building Permit Enterprise Fund pursuant to
Section 5.121.8 of the Los Angeles Administrative Code.
PROCESSING FEES FOR MISCELLANEOUS
CERTIFICATES OF COMPLIANCE
The Department of Building and Safety shall charge a fee of
$21.00 for the processing of each Certified Licensed Contrac-
tor Certificate of Compliance. Such certificates shall be pro-
vided for each retrofit of a hot water heater, forced air unit,
air-conditioning unit, plumbing fixture, solar panel, domestic
water piping within a dwelling or accessory swimming pool,
metallic water service piping, reroof, smoke detector, shower
pan, masonry and concrete fences not exceeding six (6) feet in
height replaced or installed, and masonry chimneys repaired as
specified in Section 91.0306.4.
SECTION 98.0418
SURCHARGE FOR DEVEI
AUTOMATED SYSTEMS FOR THI
OF CITY PLANNING
There shall be added to the total of all fees imposed for any
building permit required by the provisions of Article 1 of Chap-
ter IX of this Code, an automated systems development sur-
charge in an amount equal to the greater of 6 percent of the fee
or $1.00, except that any other surcharge shall be excluded
from the computation of the surcharge under this section. The
Fire Hydrant Fee, Section 91.107.4.4, and the Arts Develop-
ment Fee, Section 91.107.4.6, shall also be excluded from the
computation of the surcharge under this section. In addition, an
administrative fee of $5.00 shall be collected each time the sur-
charge is collected. Moneys received from this surcharge shall
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2008 CITY OF LOS ANGELES BUILDING CODE
EXCERPTS FROM RELATED LOS ANGELES CITY CODES
be deposited into the City Planning Systems Development
Fund pursuant to Los Angeles Administrative Code Section
5.457, except that the $5.00 fee shall be deposited into the Gen-
eral Fund and credited to the departmental receipts of the
Department of Building and Safety.
SECTION 98.0420
REFUNDS OF DEPARTMENT FEES
No claim for refund of Department fees shall be allowed in
whole or in part unless filed with the City Clerk within 12
months from the date of expiration of the permit/application or
of any extensions granted by the Department or within 12
months from the date of any Department or Board action in
which a valuation, as required by Chapter IX of the Los Angeles
Municipal Code, is lowered pursuant to the provisions of Sec-
tion 98.0403.1 of this Code. In the case a valuation is lowered,
the refund shall be 100% of the difference paid and what should
have been paid on all fees.
Insofar as the provisions of this section are in conflict with
the provisions of Sections 22.12 and 22.13 of the Los Angeles
Municipal Code, the language of this section shall be construed
to control and supersede the language of said sections as to any
such conflict.
SECTION 98.0421
INSPECTION FEE FOR
CODE ENFORCEMENT INSPECTION
(a) Code enforcement inspection fee. The Department may
impose a fee whenever an order is issued for the following:
1. The construction of a new structure, alteration, addi-
tion or mechanical installation without permits by the
current owner of the property.
2. Maintenance of an open and vandalized vacant build-
ing.
3. Conversion of a residential garage, carport, patio or
accessory building without the required permits.
4. Parking on a required front yard where parking is pro-
hibited by Section 12.21 C.l.(g).
5. Lack of required pool enclosure.
6. Accumulation of trash and debris.
7. Hazardous conditions caused or allowed by the cur-
rent property owner or tenant.
8. Use of a property which is not permitted by the Chap-
ter 1 of the Los Angeles Municipal Code.
The fee shall be twice the minimum inspection fee speci-
fied in Section 98.0412. The fee may be imposed provided
the property owner and tenant are notified of the proposed
imposition of the fee and underlying violation by United
States mail or in person at least ten days prior to the date of
issuance of any order issued by the Department.
Exception: In order to protect the public health, safety
and welfare and cause the timely abatement of vacant,
vandalized buildings, the fee may be imposed without
prior notification if the building is determined to be a
hazardous building and subject to the abatement proce-
dures described in Section 91.8903, et seq.
(b) Notice. If the Department determines that the inspection
fee is due, then the person cited shall be notified by United
States mail in a sealed envelope, with postage paid,
addressed to the last known address of the person cited as
the address appears in the last equalized assessment roll.
Service of the notice shall be deemed to have been com-
pleted at the time of deposit with the United States Postal
Service.
(c) Collection of the code enforcement inspection fee. The
person cited shall remit the inspection fee to the Depart-
ment within 30 days after the date of mailing the notice.. If
the person cited fails to do so, then the Department may
demand payment of the inspection fee from the person
cited prior to the issuance of any permit, license or
approval to the cited person. In addition to any other rem-
edy provided by law, the City may collect any judgment,
fee, cost, or charge, including any permit fees, fines, late
charges, or interest, incurred in relation to the provisions
of this section as provided in Los Angeles Administrative
Code Sections 7.35.1 through 7.35.8.
SECTION 98.0422
FEES FOR OFF HOURS PLAN
CHECK AND OTHER SERVICES
At the request of the applicant, the Department may, at its dis-
cretion, provide plan check or other services at other than nor-
mal working hours upon application therefor by an applicant.
A fee, in addition to fees charged elsewhere in this code, equal
to 50 percent of the fees for plan checking or other services or
processing shall be collected at the time of the request.
2008 CITY OF LOS ANGELES BUILDING CODE
765
DIVISION
=- TESTING PROCEDURES,
NS AND ADMINISTRATION
ALTERNATE IVIATERIALS, DEVICES
(a) Gemeral approvals. The provisions of this Code are not
intended to prevent the use of any material, device or
method of construction not specifically prescribed by this
Code, provided any such alternate has been approved and
its use authorized by the Department. For the purpose of
this section, "general approval" means approval by the
Department of any device, material or method of construc-
tion which is not specifically provided for in Chapter IX of
the Los Angeles Municipal Code.
The Department may grant a general approval for an
alternate, provided that the alternate is at least the equiva-
lent of the prescribed device, material or method of con-
struction in the Code in terms of quality, effective time
period of fire resistance, strength, effectiveness, durability
and safety. The Department shall require that sufficient
evidence or proof be submitted to substantiate any claims
that may be made regarding the adequacy of any alternate
device, material or method of construction.
The Department may accept as evidence, for purposes
of Article 1 of Chapter IX of this Code, valid evaluation
reports on alternate materials, devices or methods of con-
struction developed and published by the International
Conference of Building Officials Evaluation Service
(ICBO ES). These reports may be based upon data from
testing agencies not approved under Section 98.0503 of
the Los Angeles Municipal Code.
The Department shall use Part III, Recognized Standard
in addition to Part II, UBC Standards of Divison 35 of
Article 1 Chapter IX of the Los Angeles Municipal Code in
evaluation products for approval where such standard
exists for the product or the material and may use other
approved standards which apply.
The Department may also accept as evidence valid eval-
uation reports developed and published by other nation-
ally recognized model code organizations only under the
following circumstances. Such reports may only be
accepted if it is proven to the satisfaction of the Superin-
tendent that the responsible organization utilizes a spe-
cially trained and experienced engineering review staff,
and its standards of evaluation are at least equal to the
Department's current evaluation standards.
Before accepting an evaluation report, the Department
shall first verify that the code organization publishing the
report has utilized a testing agency acceptance system
which is reasonably equivalent to the current Department
program for testing agency approval. This system must
provide for conflict of interest safeguards, covering the
agency itself, its owners and individual employees. These
safeguards must be at least equivalent to those applied by
the Department to approved testing agencies.
Before issuing general approvals based upon the evalu-
ation reports, the Superintendent shall establish rules and
regulations setting forth the procedures and conditions for
the review of evaluation reports developed and published
by the International Conference of Building Officials
Evaluation Service (ICBO ES) or other nationally recog-
nized model code organizations.
The Department determination on an application for
general approval may be appealed to the Board of Build-
ing and Safety Commissioners under the applicable provi-
sions of this article.
(b) Fees and term of general approvals.
1 . The application for a general approval of a new mate-
rial, device or method of construction pursuant to
Article 1 of Chapter IX of this Code, and the applica-
tion for a two year renewal of a general approval shall
be accompanied by a fee as set forth in Table 5-A.
An application for a technical or clerical modifica-
tion of a general approval shall be accompanied by a
fee as set forth in Table 5-A.
The fees for new general approvals and technical
modifications include six hours of Department pro-
cessing time.
The fees for renewals and clerical modifications
include three hours and one hour of Department pro-
cessing time respectively.
2. The fees for general approval of a new material or a
new method of construction pursuant to Articles 2, 3,
4, 5 and 7 of Chapter IX of this Code shall be as pro-
vided in Section 98.0502(d).
The initial general approval, when granted, will be
valid for one year. An application for renewal must be
filed before the expiration of the latest approval or
subsequent renewal and, when granted, will be valid
for a two year period. Sale and installation shall con-
form to Section 98.0502(h).
3. The appUcation fee for the initial review for Depart-
ment approval of an evaluation report, pursuant to
Article 1 of Chapter IX, shall be as set forth in Table
5-A. This fee shall be paid in lieu of any other appUca-
tion fee for a general approval described in this section.
A fee as set forth in Table 5-A shall also be required
for Department review of any clerical or technical
modifications of a valid evaluation report.
The fees for initial review of an evaluation report and
for technical modifications of or additions to, a previ-
ously reviewed evaluation report include six and five
hours of Department processing time, respectively.
The fees for clerical modifications include one hour
of Department processing time.
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2008 CITY OF LOS ANGELES BUILDING CODE
If a general approval or renewal is based on an eval-
uation report issued by a nationally recognized model
code organization acceptable to the Department, then
the general approval and subsequent renewal shall be
valid one year and two years respectively or as long as
the unrevised evaluation report, including any renew-
als, is valid, whichever is less.
The Department shall review the evaluation reports
created pursuant to this section and used as a basis for
general approvals, prior to their expiration in order to
verify that the reevaluation due dates of the reports
remain unrevised and fully accurate in the records of
the issuing model code organization. Evaluation
reports renewed for two years shall be reviewed
bi-annually. An administrative processing fee as set
forth in Table 5- A covering the Department costs of
the reevaluation review and report distribution shall
be required from the entity holding the rights to the
general approval.
The fees for review of two year reevaluation reports
anticipate two hours of Department processing time;
4. The applicant shall agree in the application, to pay
supplemental fees at the rate of $75.00 per hour to
cover any additional time required by the Department
to process general approvals, renewals, reevaluations
or modifications which are specified in Subdivisions
1 and 3 of this subsection and any conditional approv-
als pursuant to Subdivision 3 of Section 98.0403.2(a)
of this Code. Processing shall include those activities
directly related to the general approval for which
application has been made and shall include all
research, review, correspondence, clerical and con-
sultation time pertinent to the application. The
Department may require an estimated supplemental
fee to be paid when the application is filed. In any
event, the supplemental fee shall be paid in full prior
to final action on the application by the Department.
(c)
(d)
(e)
EXCERPTS FROM RELATED LOS ANGELES CITY CODES
The fees specified in this section, including supple-
mental fees, are application fees and are not refund-
able after the Department begins processing the
application, regardless of whether the application is
approved or denied.
Exception: Supplemental fees paid in advance
which are in excess of the total actual fee are refund-
able;
5. All applications shall expire 12 months after the
Department begins processing the application if the
request for approval of a new material, device or
method of construction has not been cleared of correc-
tive orders and approved. No approval shall be issued
until the application is refiled and a new fee paid.
Exception: The Department may grant an exten-
sion of time if the applicant submits in writing suf-
ficient evidence that unusual conditions or
circumstances precluded the approval within the
allocated time.
Off-hour processing of evaluation reports. Upon
request by an applicant and accepted by the Department,
an off-hour processing fee per Section 98.0422 of the Los
Angeles Municipal Code may be collected for processing
of evaluation reports for alternate materials.
Renewal. Upon expiration of an approval or upon any
change in design, material, method of construction or model
designation made during the period of approval, it shall be
unlawful to sell, offer for sale or use a product until a renewal
has been approved under provisions of this section.
Requests for extension of time. Request for extension of
time to file for renewals or obtain approval of general
approvals, clerical and technical modifications, and renew-
als shall be made within 90 calendar days following the date
of expiration of general approvals and applications for gen-
eral approvals, modifications, and renewals. If such
requests for extensions of time are not received within the
allocated time, then a new fiUng fee shall be required.
TABLE 5-A
FEE SCHEDULE
ITEM
GENERAL APPROVAL OF RESEARCH
REPORTS (BY LOS ANGELES CITY)
GENERAL APPROVAL OF EVALUATION REPORTS (BY A
NATIONALLY RECOGNIZED MODEL CODE ORGANIZATION)
1. Initial application filing
$2250.00
$1350.00^
$150.00'*
2. Renewal application filing ' (two year)
$1950.00
3. Reevaluation application filing ^ (two year)
$600.00^
$75.00^
4. Technical Modification
$1000.00
$1200.00^
$150.00'*
5. Clerical Modification
$185.00
$185,003
$100.00'*
1 . The Department may approve one year renewals for General Approval of Research Reports, if the applicant makes such a request in writing and submit sufficient
evidence of the need for a one year renewal. The fee for a one year renewal shall be $1,300.00 for General Approval of Research Reports.
2. The Department may approve one year reevaluations for General Approval of Fire- or Life- Safety Product Evaluation Reports, if the applicant makes such a
request in writing and submit sufficient evidence of the need for a one year reevaluation. The fee for a one year reevaluation shall be $400.00 for General Approval
of Fire- or Life-Safety Product Evaluation Reports.
3. Fee for Fire-Safety or Life-Safety Products.
4. Fee for Non-Fire-Safety and Non-Life-Safety (non- structural) Products.
2008 CITY OF LOS ANGELES BUILDING CODE
767
EXCERPTS FROM RELATED LOS ANGELES CITY CODES
SECTDON 98.0502
APPLIANCES, FIXTURES AND EQUIPMENT
(a) Scope. All appliances, fixtures and equipment which are
required by the respective Codes to be approved and for
which standards are therein cited, or for which standards
or specifications have been adopted by the Superinten-
dent, shall be approved by the Department before they
may be sold, installed or used.
For the purpose of this section, sale or selhng shall refer
to any act of selling, offering for sale, displaying or adver-
tising for sale, loaning, renting, leasing, or disposing of by
way of gift or premium or otherwise, in connection with
the sale or disposal of equipment, fixtures or appliances as
designated in this section.
A label or seal of an approved nationally recognized test-
ing agency attached to an item or any identification marking
corresponding to a published listing by an approved nation-
ally recognized testing agency indicating that the item has
been tested for compliance withi the standards cited in the
applicable Code or adopted by the Superintendent, and
indicating that the item is included in the testing agency's
factory follow-up inspection and listing service, will be
accepted in lieu of approval by the Department.
This section shall not apply to general approvals issued
pursuant to Section 98.0501(b) of this article and except for
Subsections (d) and (h), shall not apply to general approvals
issued pursuant to Section 98.0501(c) of this article.
(b) Authority of superieteedent. The Superintendent has
the authority to establish standards, specifications and
special requirements for materials and methods of con-
struction when standards or specifications are not cited in
the Code. The Superintendent has the authority to estab-
lish rules and regulations for the Mechanical Testing Lab-
oratory and for the Electrical Testing Laboratory
governing requirements for tests, examinations, proce-
dures and approvals, and to establish supplemental fees,
including mileage charges for field trips, and charges for
examinations and inspections. The rules and regulations
shall be in writing and on file in the Department and shall
have the same force and effect as if they were included in
any of the respective articles.
(c) Applications of tests and approvals. Any person submit-
ting any appliance, fixture or equipment for tests, exami-
nation, approval or renewal of approval, as required by
this section, shall file an application therefore with the
Department on forms provided by the Department.
A separate appUcation shall be made for each item or
appliance, fixture or equipment to be tested or examined,
unless otherwise determined by the Department, and shall
bear the signature of the applicant. When necessary,
arrangements may be made for all or part of the tests and
examinations to be conducted in the field. Should the test-
ing facilities of the Department be inadequate to determine
compliance with the standards, the Superintendent may use
available faciUties outside the Department, provided the
appUcant is first notified and the additional cost, if any, is
approved by the applicant in writing, for invoicing to and
payment by him. The Department may, at its discretion,
accept tests and reports of tests by an approved testing
agency as a basis in part or in full for granting an approval.
(d) Fees. Applications for initial approvals and renewals pur-
suant to Articles 2, 3, 4, 5 and 7 of Chapter IX of this Code
shall be accompanied by fees as follows:
1. Mechanical Testing Laboratory Fees
ITEM
LABORATORY APPROVAL FEE
GENERAL APPROVAL FEE
1.
Initial application filing*
$800.00
(Including 8 hr. processing time
but no field mileage)
$900.00
(Including 8 hr. processing time
but no field mileage)
2.
Renewal application filing*
$600.00
(Including 5 hr. processing time
but no field mileage)
$600.00
(Including 5 hr. processing time
but no field mileage)
3.
Processing time exceeding amount included with application **
$75.00/hr
$75.00/hr
4.
Field Mileage, when required.
(Mileage based on one way, straight-hne distance from Laboratory to test site)
to less than 15 miles
$30.00/trip
$30.00/trip
15 to less than 30 miles
$40.00/trip
$40.00/trip
30 miles and overmiles
$40.00/trip
plus $1.00/mile over 30
$40.00/trip
plus $1.00/mile over 30 miles
5.
Reopening file closed because required production sample not received
within 60 days from date application submitted***
$100.00
$100.00
6.
Reopening file closed because previous approval expired for more than 30
days. Approval file shall not be reopened more than one year after expiration
date. (This fee is in addition to the renewal fee).
$200.00
$200.00
7.
Technical Modification*
$500.00
(Including 4 hr. processing time,
but no field mileage)8.
$500.00
(Including 4 hr. processing time,
but no field mileage)
continued
768
2008 CITY OF LOS ANGELES BUILDING CODE
EXCERPTS FROM RELATED LOS ANGELES CITY CODES
2. Electrical Testing Laboratory Fees
ITEM
LABORATORY
APPROVAL FEE
GENERAL '
APPROVAL FEE
FIELD APPROVAL FEE
(one time approval)
1. Initial application filing*
a. General purpose equipment
(1) Simple equipment (applies only to less complex light
fixtures or similar equipment)
$500.00
(Including 4 hr. processing
time but no field mileage)
$1,000.00
$850.00
(2) Complex equipment and systems
$900.00
$1,100.00
$1,000.00
b. Equipment for hazardous areas
(1) Simple equipment
N/A
$1,000.00
N/A
(2) Complex equipment and systems
N/A
$1,100.00
N/A
c. Medical Equipment
( 1 ) Simple equipment
$900.00 ■
$1,000.00
$900.00
(2) Complex equipment and systems
$1,000.00
$1,100.00
$1,200.00
d. Equiprhent rated above 600 volts or above 60 Hertz
(except appliances and light fixtures)
(1) Simple equipment
N/A
$1,000.00
$900.00
(2) Complex equipment and systems
N/A
$1,100.00
$1,200.00
Note: All fees for initial application filing include 8 hour processing time but no field mileage except when noted.
2. Annual Renewal application filing*
65% of Fee
(Including 4 hr. processing
time but no field mileage)
65% of Fee
(Including 4 hr. processing
time but no field mileage)
N/A
3. Processing time exceeding amount included with application**
$75.00/hour
$75.00/hour
$75.00/hour
4. Field Mileage, when required.
(Mileage based on !one way, straight-line distance from laboratory to test site)
to 15 miles
$30.00/trip
$30.00/trip
$30.00/trip
15 to 30 miles
$40.00/trip
$40.00/trip
$40.00/trip
30 miles and over
$40.00/trip
plus $1.00/mile over
30 miles
$40.00/trip
plus $1.00/mile over
30 miles
$40.00/trip
plus $1.00/mile over
30 miles
5. Reopening file closed because of failure to respond to correction(s) or required
production sample not received within 60 days from date of notification.***
$100.00
$100.00
$100.00
6. Reopening file closed because previous approval expired for more than 30 days.
Approval file shall hot be reopened if not renewed for more than one year after
expiration date. (This fee is in addition to the renewal fee and penalty fee)
$200.00
$200.00
$200.00
7. Technical Modification
*Note: Technical Modification approval time is only up to the expiration date of
the application approval. This will not set a new approval tune for the apphcation.
$500.00
(Including 4 hr. processing
time but no field mileage)
$500.00
(Including 4 hr. processing
time but no field mileage)
8. Clerical Modification (Revision of names and/or model numbers under cur-
rent approval requiring no testing or examination)
$155.00
(Including 1 hr. processing
time but no field mileage)
$155.00
(Including 1 hr. processing
time but no field mileage)
9. Multiple Listings (Additional models and product or firm names on approved
products at time of apphcation is submitted for approval or renewal)
$40.00
10. Department Approval Labels:
a. Paper
$0.10
$0.10
N/A
b. Water Proof
$1.50
$1.50
N/A
c. One time only
No cost
* The applicant shall agree in writing, as part of the application, to pay supplemental fees for processing time, field mileage, and file reopening fees where necessary.
These fees are in addition to application filing fee. The Department requires a deposit to cover the estimated total supplemental fees to be paid in advance. Initial
applications wiU expire 12 months after the filing date if the equipment has not been cleared of corrections and approved. No approval shall be issued until the
application is reilled or reopened and the penalty fees are paid.
** Pi'ocessing time includes office and field review and testing, office and field consultation, field standby and travel time directly related to the application.
** * lliis fee is in adiiition to other fees specified in this section. The 60 day period may be extended by the Department when the applicant submits written evidence to
the Department of a satisfactory reason for the extension.
NOTE: A file shall not be reopened after one year from date of expiration. The total actual fee for the application shall be determined by the Department on the
basis of fees established by ordinance and shall be paid by the applicant whether or not an apprwal is granted. Fees paid in advance which are in excess of the
total actual fees are refundable.
2008 CITY OF LOS ANGELES BUILDING CODE
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EXCERPTS FROM RELATED LOS ANGELES CBTY CODES
(e) Test samples. At the time of filing the application, unless
otherwise directed in writing by the Department, the appli-
cant shall submit to the Electrical Testing Laboratory, or
the Mechanical Testing Laboratory, or any testing agency
as may be designated by the Department, a representative
production sample of the material, device, appliance or
equipment to be tested and examined, unless arrange-
ments have been made for conducting the tests and exami-
nations on a representative production sample in the field.
Additional samples shall be made available as may be
required.
All wiring diagrams and additional electrical samples,
including components, special ingredients, or materials
required by Subsection (f) shall be made available to the
Department and conform to the standards which the elec-
trical equipment must meet before approval can be consid-
ered as specified in Subsection (f). If the electrical item
submitted for test is determined by the Department to be
within the practical range of review by the Electrical Test-
. ing Laboratory, it shall be accepted and subjected to the
tests required by Subsection (f). Samples shall be removed
by the applicant or his authorized agent upon notification
to do so by the Department, or they may be scrapped upon
written authorization by the applicant. Samples unclaimed
six (6) months after such notification shall be scrapped.
The Department is authorized, without liability to itself
or to its authorized representatives, to subject samples to
destructive tests as may be required to properly evaluate
the tests and examinations.
(f) Standards. Equipment requiring approval for use, sale or
installation which does not fall within the scope of Code
standards or those standards adopted by the Superinten-
dent shall be tested for compliance with applicable por-
tions of these standards. The Superintendent shall
determine the specific standards or portions thereof to
which any specific equipment must conform.
(g) Approvals. Whenever any appliance, fixture or equip-
ment has been found to comply with the provisions of this
section and the applicable Code, the Department shall
issue an approval therefor for a period of one year. This
approval is subject in every case to continued compliance
with the provisions of this section and any further amend-
ments to this section, and is subject to the requirements of
the applicable articles, except where such articles are in
conflict herewith, and subject also in every case to any
change in the test or approval requirements for any such
material, device, appliance or equipment.
Items submitted for approval which fail to meet the test
or examination requirements shall be corrected and resub-
mitted as set forth in the Mechanical Testing Laboratory or
Electrical Testing Laboratory rules and regulations
adopted by the Superintendent before an approval can be
granted.
(h) Renewal of approval. Upon expiration of an approval
granted for any appliance, fixture or equipment, or upon
any change in design, material, method of construction or
model designation made during the period of approval, it
shall be unlawful to sell, offer or advertise for sale, or
#
•
install the appliance, fixture or equipment until a renewal j^^
of approval has been granted under the provisions of this WM f
section.
Exception: Exact duplicates of approved products,
bearing the label required by this section and manu-
factured before the approval expires, may be offered
for sale and may be installed and used in conformance
with this section and Article 3 of Chapter IX of the
Municipal Code (Electrical Code). No equipment,
fixture or appliance manufactured after the expiration
of its approval may be placed on sale until it has been
examined and approved by the annual reexamination
service provided by the rules and regulations or other-
wise approved by laboratories designated by the
Superintendent.
(i) Identification of approval. Each item of material, and
each device, appliance, fixture or equipment approved
under the provisions of this section, shall be identified as
may be required by the applicable article of Chapter IX of
the Los Angeles Municipal Code or by standards, specifi-
cations or rules and regulations under which the approval
was granted.
Each item of electrical equipment, fixture or appliance
approved under this article and Article 3 of Chapter IX of
the Municipal Code (Electrical Code) shall bear the
approval label of the department, attached in the manner
determined by the standards, or otherwise made accessible
for inspection without disassembly. Approval labels may
be obtained only upon the written authorization of the
applicant or his authorized representative and shall be
available only during the year of approval. The applicant
shall be held responsible for their use. No label shall be
affixed to any item not currently approved by the depart-
ment, nor shall the labels be transferred to the possession
of any unauthorized person.
(i) Inspection. Every person selling, offering or displaying
for sale, renting or installing fixtures, appliances or equip-
ment shall make such items available for inspection upon
the request of the Department.
When equipment, fixtures or appliances are found not
in accord with the provisions of this section or of the
respective Codes, the Department shall give written notice
to the person violating these provisions to remove them
from sale or use. Any person failing to comply with the
provisions of such notice shall be guilty of a misdemeanor
and shall be subject to the penalties described in Section
1 1 .00 of the Los Angeles Municipal Code.
Whenever the Superintendent learns or ascertains that
any equipment, as defined in this Code, has become haz-
ardous to life, health or property, he shall order, in writing,
that such equipment be restored to a condition of safety or
be dismantled or removed from its present location. The
written notice shall fix a time limit for compliance with
such order. No person shall use or maintain the defective
equipment after receiving such notice.
(k) Revocation of approvals. The Superintendent may sus-
pend or revoke any approval if it is determined that the arti-
•
•
770
2008 CITY OF LOS ANGELES BUILDING CODE
EXCERPTS FROM RELATED LOS ANGELES CITY CODES
cle which has been approved is dangerous or unsuitable for
the purpose intended, or is of a quality of material or work-
manship not equivalent to that required by the Code or stan-
dards adopted by the Superintendent, or deviates from any
of the conditions upon which the approval was granted, or
for any of the reasons set forth in this article.
In any action to suspend or revoke an approval, the pro-
cedures prescribed by the provisions of this article shall be
followed.
(1) Testing in applicants premises. Testing in applicants
premises maybe conducted when the applicant submits
written evidence to the Department of a satisfactory rea-
son for such tests. The applicant shall agree in writing to
pay all the expense for travel, transportation, board and
lodging, and other miscellaneous expense required by
ordinance.
The applicant shall agree in writing, as a part of the
application, to pay supplemental fees at the rate of $ 1 10.00
per hour to cover the time of travel and processing which is
in excess of the amount of time provided for in the
approval, renewal or modification fee specified in this sec-
tion.
The applicant shall provide all equipment required for
testing and assistance for the test. The applicant shall pro-
vide a safe environment for testing, protective equipment,
and materials needed for conducting the test.
(m) Off-liour review of appliances, fixture and equipment.
Upon request by an applicant and accepted by the Depart-
ment, an off-hour processing fee per Section 98.0422 of
the Los Angeles Municipal Code may be collected for all
services conducted by the Electrical and Mechanical Test-
ing Laboratory.
SECTION 98.0503
TESTING AGENCIES
Whenever tests or certificates of any material or fabricated
assembly thereof, or of any persons, are required by this chap-
ter, such tests or certification shall be made by a testing agency
approved by the Superintendent to conduct such tests or pro-
vide such certifications. Approvals of testing agencies shall be
issued for a period of one year and may be renewed for addi-
tional one-year periods.
(a) The Superintendent shall establish rules and regulations
setting forth conditions and provisions precedent to the
issuance of any such approval and for the conduct of any
person or agency so approved.
(b) A fee of $800.00 shall accompany each application for
approval and a renewal fee of $600.00 shall accompany
each application for renewal. A fee of $450.00 shall be
charged for the approval of each branch office in addition
to the main office and a renewal fee of $175.00 shall be
charged for the renewal of each branch office in addition
to the main office. A fee of $450.00 shall accompany each
application for a major modification and a fee of $150.00
shall accompany each application for clerical modifica-
tion.
Exception: Application fees shall not be required
from those agencies, which are located in the United
States of America, established and operating on a
nonprofit basis, and
1 . which have an approved reinspection service; or
2. which are public universities, colleges or testing
facilities operated by a governmental agency.
The fees for approval of new Testing Agencies include
four hours of Department processing time. The fees for
major modifications of Testing Agencies and review of
each branch testing laboratory include four hours of
Department processing time. The fees for renewal and
clerical modifications include three hours and one and
one-half hours of Department processing time respec-
tively.
The fees for application review, investigating and
inspecting testing agencies for initial recognition, modifi-
cations or renewals shall be $75.00 per hour for on-site
laboratory inspections and follow-up laboratory inspec-
tions and are applicable to all testing and other types of
product approval or evaluation agencies including those
exempted from application fees in the foregoing excep-
tion. Such inspections performed at off-hours shall be
charged a fee at the rate of one and one-half the hourly fee
in this paragraph'.
The applicant shall agree in writing, as part of the appli-
cation, to pay supplemental fees at the rate of $75.00 per
hour to cover the time of processing which is excess of the
time provided for in the approval, renewal or modification
fee specified in this section. Processing shall include those
activities directly related to the approval of Testing or
other product approval Agencies for which an application
has been made and shall include all research, review, cor-
respondence, clerical and consultation time pertinent to
the application. The Department may require an estimated
supplemental fee to cover the time and travel expense
which shall be paid at the time of filing the application
and/or before any travel to laboratories outside of the State
of California; however, the supplemental fee shall be paid
in full prior to fmal action on the application by the Depart-
ment.
The fees specified in this section, including supplemen-
tal fees, and application fees are not refundable once work
has been performed by the Department, regardless of
whether the action taken is approved or denied.
Exception: Supplemental fees paid in advance,
which are in excess of the total actual fee shall be
refundable.
Initial applications, modifications, renewals and branch
approvals shall expire 12 months after the Department has
started work on the application if the request for approval
of a testing agency has not been cleared of corrections and
approved. No approval shall be issued until the application
is filed and a new fee paid.
Exception: The Department or the Board on appeal
may grant extensions of time if an applicant submits
in writing sufficient evidence that unusual conditions
2008 CITY OF LOS ANGELES BUILDING CODE
771
EXCERPTS FRO[\fl RELATED LOS ANGELES CITY CODES
or circumstances precluded the approval within the
allocated time, provided that such appeals are submit-
ted within the time period required by Section
98.0501(d)2.
(c) The Superintendent may suspend or revoke an approval
upon evidence of failure of tlie agency or person so
approved to properly conduct any test or certify any mate-
rial or assembly of material in a manner required by Chap-
ter 9, or for any of the reasons set forth in this article.
In any action to suspend or revoke an approval, the pro-
cedure prescribed by the provisions of this article shall be
followed.
(d) In order to determine compliance with applicable rules or
regulations, the Superintendent may inspect the premises
of any testing agency approved or seeking Superintendent
approval. Such inspection shall be conducted during regu-
lar working hours and at other reasonable times.
The Superintendent or his authorized representatives
may, during the course of any investigation or inspection,
obtain statistics, information or, other physical materials
which are directly related to the purpose of the investiga-
tion or inspection.
The Superintendent may collect fees for the inspection
of a testing agency as necessary to cover the actual cost of
having an initial inspection performed.
An additional fee may, in the discretion of the Superin-
tendent, be charged for necessary subsequent inspections
to determine if applicable ordinances, rules, or regulations
governing testing agencies have been and are being met.
The initial application for approval, and the renewal
application shall include a statement that the applicant
agrees to pay all inspection charges imposed pursuant to
this subsection.
Whenever an inspection is conducted by Department
personnel at facilities located more than 60 miles from Los
Angeles City Hall, the applicant shall reimburse the City
of Los Angeles for the cost thereof in accordance with the
same charges as imposed for automobile and air travel, per
diem and travel time as specified in Subsection 96.204(i)
for inspection of fabrication facilities. These charges are
the same for inspections initiated by the Department or
requested by the applicant and are to be paid by the testing
agency.
charged for an initial study or a negative declaration. This
fee shall include twelve (12) hours of processing time.
(c) The Department shall charge the applicant hourly fees for
all staff time over the minimum number of hours specified
above. The fee shall be $75.00 per hour or fraction thereof
for each additional hour involving the project California
Environmental Quality Act (CEQA) review.
•
ENVIRONMENTAL REPORTS
(a) A processing fee of $600.00 shall be charged each appli-
cant when the Department is required to perform an initial
study or a negative declaration, to comply with the Cali-
fornia Environmental Quality Act (CEQA). This fee shall
include eight (8) hours of processing time.
(b) A processing fee of $ 1 200.00 shall be charged each appli-
cant when the Department is required to perform a miti-
gated negative declaration or Environmental Impact
Report, to comply with the CaUfornia Environmental
Quality Act (CEQA) and shall be in addition to the fee
772
2008 CITY OF LOS ANGELES BUILDING CODE
HVISION 6 — EXPIRATION AND REVOCATION OF PERMITS, PLAN
CHECK AND SLIGHT MODIFICATIONS AND ALTERNATIVES
SECTION 98.0601
»E
The purpose of this division is to establish requirements and
procedures for the revocation by the Department of permits
issued by the Department and to establish time limits for the
validity of perinits, plan checks and slight modifications.
(a)
(b)
(a)
1. The Department shall have the authority to revoke
any permit, slight modification, deternaination
granted or made in reliance on a false statement or
misrepresentation as to a material fact.
2. The Department shall have the authority to revoke
any permit, slight modification, or determination
whenever such action was granted in error or in viola-
tion of other provisions of the Code and conditions
are such that the action should not have been allowed.
Board authority. The Board shall have the authority to
revoke any slight modification, or determination granted
or made by the Board in reliance on a false statement or
misrepresentation as to a material fact. The Board shall
also have the authority to revoke any slight modification,
determination granted or made by the Board whenever
such action was granted in error or in violation of other
provisions of the Code and conditions are such that the
action should not have been allowed.
SECTION 98.0602
EXPIRATION OF PERMITS
Every permit issued shall be valid for a period of two years
from the date thereof, provided that any permit shall
expire on the one hundred and eightieth (180) day from
date of issuance if the work permitted thereunder has not
been commenced; or shall expire whenever the Depart-
ment determines the work authorized by any permit has
been suspended, discontinued or abandoned for a continu-
ous period of 180 days.
Hoe: If the holder of any permit issued by the
Department presents satisfactory evidence that unusual
construction difficulties have prevented work from
being started or continued without being suspended
within the 1 80-day time period or completed within the
two-year period of validity, the Department or the
Board may grant extensions of time reasonably neces-
sary because of such difficulties.
Notwithstanding the provisions of this subsection, the
validity of a permit may be further restricted in the follow-
ing conditions:
1. In the case that a building or structure has been
ordered repaired or demolished in accordance with
Section 91.8903, 91.8904 or 91.8905 of the Code
such time limits as are specified therein shall apply.
2. The Department or the Board may, because of
unusual circumstances or conditions such as, but not
limited to, the demolition of an imminently hazardous
building, or a grading operation which may be subject
to flooding during the rainy season, impose restric-
tions upon the time limits for expiration of any permit.
3. The time limit of validity of relocation permits shall
be as specified in Section 91.8306 of the Code.
4. The time limit of validity of tent permits shall be as
specified in Section 91.5501 of the Code.
5. The time limit of validity of permits for the installa-
tion of metal bars, grills, grates, security roll-down
shutters, and similar devices, and of quick-release
systems shall be as specified in Section 91.1 204 of the
Code.
(b) Permits which have expired shall have the site, building or
project restored to the condition which existed immedi-
ately prior to the commencement of work described by
such permit.
(c) It shall be unlawful for any owner, either before or after the
issuance of a permit under this section, and notwithstand-
ing the issuance of such permit, to fail to comply with any
order, determination or action of the Department or Board.
SECTION 98.0603
EXPIRATION OF PLAN CHECK,
If a permit is not secured within 18 months after plans have
been filed for checking such plaii check shall expire and no per-
mit shall be issued until the plans are rechecked and approved
and a new plan check fee paid.
Exception: The Department or the Board may grant exten-
sions of time if a permit applicant submits in writing suffi-
cient evidence that unusual conditions or circumstances
precluded the securing of the permit within the allocated
time.
SECTION 98.0604
EXPIRATION OF SLIGHT MODIFICATIONS
AND ALTERNATIVES
The rights and privileges granted by the Department or the
Board under a slight modification shall be voided if the permit
is not secured within 18 months of the date the modification
was granted or if the permit expires under any of the conditions
specified in Section 98.0602 of the Los Angeles Municipal
Code.
Exception: The Department or the Board may grant exten-
sions of time if a permit applicant submits in writing sub-
stantial evidence that unusual conditions or circumstances
precluded the securing of the permit within the allocated
2008 CITY OF LOS ANGELES BUILDING CODE
773
EXCERPTS FROWJ RELATED LOS A^SGELES CITY CODES
time or caused the permit to expire as specified in Section
98.0603 of the Los Angeles Municipal Code.
W
Requests for extensions of time on the expiration times of per- ilBlk
mits, plan checks, slight modifications shall not be made not ^B I
later than 30 days after the expiration time specified in this divi- ^^pr
sion.
•
•
774 2008 CITY OF LOS ANGELES BUILDING CODE
DIVISION 7 — ABATEMENT OF VACANT BUILDINGS
SECTION 98.0701
DECLARATION OF PURPOSE
The Council of the City of Los Angeles finds and declares that:
(a) Structures that are vacant and unsecured or barricaded
attract vagrants, gang members and other criminals as
prime locations to conduct illegal criminal activities.
(b) Structures that are vacant and not properly secured are
extremely vulnerable to being set on fire by unauthorized
persons.
(c) Structures that are vacant and unsecured or barricaded are
a blight and cause deterioration and instability in neigh-
borhoods.
(d) Structures that are vacant and unsecured or barricaded
pose serious threats to the public's health and safety and
therefore are declared to be public nuisances.
(e) Immediate abatement and rehabilitation of these struc-
tures is necessary and can be accomplished by using the
judicial or administrative procedures found in this Code.
SECTION 98.0702
DEFINITIONS
The following words and phrases, whenever used in this divi-
sion, shall be construed as defined in this section. Words and
phrases not defined herein shall be construed as defined in Sec-
tions 12.03 and 91.201, et seq. of this Code.
"Responsible Person" means the owner and/or person in
charge or control of the Vacant Structure.
"Superintendent" means the General Manager of the Depart-
ment of Building and Safety or his or her duly authorized repre-
sentative.
"Statement of Intent" means a form filled out by the responsi-
ble person of a Vacant Structure which contains specific infor-
mation regarding the structure and the owner's plan for its
rehabilitation and maintenance, or demolition.
"Vacant Structure" means any structure or building that:
1) is unoccupied or occupied by unauthorized persons; and
2) is unsecured or barricaded.
SECTION 98.0703
ENFORCEMENT AUTHORITY
The Superintendent is authorized to administer and enforce the
provisions of this division. The Superintendent or anyone des-
ignated by the Superintendent may exercise any enforcement
powers as provided in Chapter IX of this Code.
SECTION 98.0704
ENFORCEMENT REMEDIES
Violations of this division may be prosecuted as misdemeanors
subject to the fines and custody provided in Section 1 1 .00(m)
of this Code. The Superintendent may also seek injunctive
relief and civil penalties in the Superior Court pursuant to Sec-
tion 98.0716 of this Code or pursue any administrative remedy
provided in Chapter IX of this Code.
SECTION 98.0705
STRICT LIABILITY OFFENSES
Violations of this division shall be treated as strict liability
offenses regardless of intent.
SECTION 98.0706
DUTY TO CLEAN, FENCE AND BARRICADE
(a) It is unlawful for the Responsible Person to fail to remove
any waste, rubbish, debris, flammable, combustible, or
hazardous materials from the interior of the Vacant Struc-
ture.
(b) It is unlawful for the Responsible Person to fail to remove
any waste, rubbish, debris, excessive vegetation, inopera-
ble vehicles, trailers, appliances, and any other similar
materials from the yards surrounding the Vacant Struc-
ture.
(c) It is unlawful for the Responsible Person to fail to lock,
barricade or secure all doors, windows, damaged walls,
roofs, foundations and other openings of the Vacant Struc-
ture.
(d) It is unlawful for the Responsible Person to fail to fence the
entire lot containing the Vacant Structure.
(e) It is unlawful for the Responsible Person to fail to post the
property containing the Vacant Structure with signs stat-
ing "THIS PROPERTY CLOSED TO THE PUBLIC "
in accordance with Section 41.24 of this Code.
(f) It is unlawful for the Responsible Person to fail to file writ-
ten trespass authorization request with the police depart-
ment pursuant to Section 41.24(g) of this Code to
authorize a peace officer's assistance in removing tres-
passers from the property containing the Vacant Structure.
SECTION 98.0707
ADMINISTRATIVE ABATEMENT PROCEDURES FOR
VACANT AND UNSECURED STRUCTURES
(a) Whenever the Superintendent determines that a vacant
and unsecured structure exists within the City of Los
Angeles, an abatement notice and order may be sent to the
Responsible Person directing abatement by cleaning,
fencing and securing or barricading. Barricading and fenc-
ing shall be done pursuant to the standards established in
Section 91.8904.1 of this Code.
(b) The Superintendent shall follow the administrative abate-
ment procedures set forth in Division 89 of Article 1 of
Chapter IX of this Code.
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(c) If the Responsible Person does not comply with the abate-
ment notice and order, and no appeal is filed, the Superin-
tendent may:
1) clean, remove graffiti, fence, and barricade the unse-
cured Vacant Structure;
2) post the property containing the Vacant Structure pur-
suant to Section 98.0714 of this Code; and
3) recover all costs pursuant to the procedures set forth
in Division 89 of Article 1 of Chapter IX of this Code.
sance and recover costs pursuant to Division 89 of Article
1 of Chapter IX of this Code.
(b) If the yards surrounding a Vacant Structure, previously
abated by the Responsible Person or the Superintendent
pursuant to a notice and order, again contain graffiti,
waste, rubbish, debris, excessive vegetation, inoperable
vehicles, trailers, appliances, and any other similar materi-
als, the Superintendent may proceed to abate the nuisance
and recover costs pursuant to Division 89 of Article 1 of
Chapter IX of this Code.
SECTION 98.0708
STANDARDS FOR FENCING AND
.BRIGADING A VACANT STRUCTURE
The Responsible Person shall barricade the Vacant Structure
according to the following specifications and requirements:
(a) Remove all waste, rubbish, debris, flammable, combusti-
ble, or hazardous materials from the interior of the struc-
ture; and
(b) Remove all waste, rubbish, debris, excessive vegetation,
inoperable vehicles, trailers, appliances, and any other
similar materials from the yards surrounding the Vacant
Structure; and
(c) Barricade all unsecured doorways, windows, damaged
walls, roofs, foundations or exterior openings in accor-
dance with the requirements of Division 89 of Article 1 of
Chapter IX of this Code; and
(d) Fence the entire lot surrounding the Vacant Structure in
accordance with the requirements of Division 89 of Arti-
cle 1 of Chapter IX of the Code; and
(e) Post the property containing the Vacant Structure with
signs stating that the property is closed to the general pub-
lic in accordance with the requirements of Section 41.24
of this Code.
SECTION 98.07111
ABATEMENT COST
(a) Abatement costs shall include the cost to perform the
actual work and the City's cost to administer any abate-
ment.
(b) Once the abatement is complete, the Superintendent shall
recover all abatement costs pursuant to the procedure
found in Division 89 of Article 1 of Chapter IX of this
Code.
SECTION 98.0712
CONTINUOUS PUBLIC NUISANCES
Any Vacant Structure that was originally secured by the
Responsible Person's voluntary actions or pursuant to adminis-
trative or judicial order may be declared a permanent public
nuisance by the Superintendent if the structure subsequently
becomes open and unsecured, thereby requiring additional
reinspection and resecuring of the structure by either the
Responsible Person or the Superintendent. The Superintendent
may seek demolition of this continuous public nuisance by
seeking a court order or by following any of the administrative
abatement procedures set forth in Division 89 of Aiticle 1 of
Chapter IX of this Code.
(a)
(b)
(a)
SECTION 98.0709
ENTRY OR INTERFERENCE WITH
NOTICE PROHIBITED
It is unlawful for any person to enter or occupy any struc-
ture or premises which has been posted pursuant to Sec-
tion 91.8903.1.5, 91.8904.1, or 98.0708(e) of this Code,
except to repair or demolish the structure under proper
permit or for a purpose authorized by the owner.
It is unlawful for any person to remove or deface any
notice posted pursuant to Section 91.8903.1.5, 91.8904.1,
98.0708(e) or 98.0714 of this Code.
SECTION 98.0710
S ABATEMENT AUTHORITY
If a Vacant Structure, previously abated by the Responsi-
ble Person or the Superintendent pursuant to a notice and
order, again becomes unsecured and open to unauthorized
entry, the Superintendent may proceed to abate the nui-
SECTION 98.0713
DUTY TO FILE A STATEMENT OF INTENT
(a) The Superintendent shall create and make available a form
entitled "Statement of Intent" to be completed by the
Responsible Person.
(b) The Responsible Person shall complete the information
required on the standard Statement of Intent and submit
the Statement to the City within 30 days of the date the
Superintendent determines that the structure meets the
definition of a Vacant Structure.
(c) The Superintendent shall determine whether a submitted
Statement of Intent is complete and may require the
Responsible Person to provide more complete informa-
tion.
(d) When a submitted Statement of Intent does not meet with
the Superintendent's approval, the Responsible Person
shall immediately correct and resubmit the Statement of
Intent.
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(e) The Statement of Intent shall include all of the following
information as to:
(1) expected period of vacancy; and
(2) a plan for regular maintenance during the period of
vacancy; and
(3) a plan and time line for the lawful occupancy, reha-
bilitation or demolition of the barricaded structure;
and
(4) any additional information required by the Superin-
tendent.
(f) It is unlawful to:
(1) fail to submit a Statement of Intent within the time
period specified by Subsection (b) of this section; or
(2) submit a Statement of Intent which does not meet
with the approval of the Superintendent or other-
wise comply with the requirements of this section.
SECTION 98.0714
POSTING NAME OF RESPONSIBLE PERSON
The Responsible Person shall permanently affix, in a conspicu-
ous place on the Vacant Structure, a notice stating the name,
address, and telephone number of both the owner and the
owner's agent in charge or control of the Vacant Structure. If
the Responsible Person fails to affix this notice on the Vacant
Structure within 30 days of the date the Superintendent deter-
mines that the structure meets the definition of a Vacant Struc-
ture, then the Department may cause the same to be
permanently affixed to the Vacant Structure, using the name,
address and telephone number for the owner(s) as shown on a
title report obtained from either the Division of Real Estate,
Bureau of Engineering, Department of Public Works, City of
Los Angeles or by contracting with one or more private title
reporting agencies. Said title report shall list all persons shown
on the records of the County Recorder as having an ownership
interest or liens or encumbrances or other interests in the real
property on which the Vacant Structure is located.
SECTION 98.0715
REINSPECTION FEE
The Superintendent may periodically reinspect Vacant Struc-
tures to ensure compliance with the provisions of this division
and all applicable court and administrative orders. The Super-
intendent may impose a reinspection fee against the Responsi-
ble Person for actual costs of each reinspection and continuous
monitoring of the structure and premises as is reasonably nec-
essary to determine compliance with the standards and proce-
dures in this division. The Superintendent shall follow the
procedures setforth in Sections 91.8904.3, 98.041 1 or 98.0412
of this Code.
SECTION 98.0716
VACANT STRUCTURE PENALTY
(a) Any Responsible Person in charge of a structure which
meets the definition of a Vacant Structure as provided in
(b)
this division for 90 consecutive calendar days may be lia-
ble for a civil penalty in the amount of $500 per structure,
not to exceed $2,000 per calendar year unless:
(1) A Statement of Intent has been filed and approved
by the Superintendent; and
(2) The building has been posted as required by Section
98.0714 ofthis Code; and
(3) One of the following applies:
(A) The structure is the subject of an active build-
ing permit for repair, rehabilitation or demoli-
tion and the owner is proceeding diligently in
good faith to complete the repair, rehabilita-
tion or demolition; or,
(B) The structure is maintained in compliance
with this division and is actively being offered
for sale, lease or rent; or,
(C) The Responsible Person can demonstrate that
he or she made a diligent and good faith effort
to implement the actions set forth in the ap-
proved Statement of Intent within the time
line contained within the Statement of Intent.
If the structure continues to meet the definition of Vacant
Structure as provided in this division beyond the initial 90
calendar days, and if the Responsible Person does not
meet any of the exceptions set forth in this section, the
Superintendent may continue to impose a penalty of $500
for each 90 calendar day period the structure continues to
constitute a Vacant Structure. At no time may the amount
of the civil penalty exceed $2,000 per structure in a calen-
dar year.
SECTION 98.0717
PROCEDURES FOR BARRICADED AND VACANT
STRUCTURE PENALTY
(a) Whenever the Superintendent determines that a structure
meets the definition of a Vacant Structure as provided in
this division for more than 90 consecutive calendar days,
and the Responsible Person does not meet any of the
exceptions set forth in Section 98.0716(a), a Notice of
Barricaded and Vacant Structure Penalty may be issued to
the Responsible Person, and any other person listed in the
title report as having an interest in the real property.
(b) A separate Notice of Barricaded and Vacant Structure
Penalty shall be issued for each subsequent penalty that
may be imposed pursuant to Section 98.0716.
(c) The Notice of Barricaded and Vacant Structure Penalty
shall be served on each required person by any one of the
methods of service listed in Section 91.8903.3.4 of this
Code.
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APPEAL OF BARRICADED AND ¥ACAMT
SEPEi
An appeal of a Barricaded and Vacant Structure Penalty shall
follow the procedures set forth in Section 98.041 1 of this Code.
(a) The appeal hearing shall follow the enforcement hearing
procedures setforth in Section 98.0403.2(b) of this Code.
(b) The Board shall only consider evidence that is relevant to
the following issues:
( 1 ) Whether the structure meets the definition of Vacant
Structure as provided in this division for 90 consec-
utive calendar days;
(2) Whether an approved Statement of Intent has been
filed and approved by the Superintendent; and
(3) Whether any of the exceptions set forth in Section
98.0916(a)(2)(A) through (C) have been met.
(c) The Board may impose administrative costs.
FAILURE TO PAY PENALTIES
The failure of any person to pay the penalty within the time
specified in the Notice of Barricaded and Vacant Structure Pen-
alty may result in the Superintendent using any legal means to
recover the civil penalties, including filing a claim with the
Small Claims Court or following the procedures set forth in
Section 91.8906 of this Code.
lE^
Administrative civil penalties collected pursuant to this divi-
sion shall be deposited in the appropriate fund as determined by
the Superintendent.
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CHAPTER XI, ARTICLE 1
NOISE REGULATION
SECTION 111.00
DECLARATION OF POLICY
It is hereby declared to be the policy of the City to prohibit
unnecessary, excessive and annoying noises from all sources
subject to its police power. At certain levels noises are detri-
mental to the health and welfare of the citizenry and in the pub-
lic interests shall be systematically proscribed.
SECTION 111.01
DEFINITIONS
Unless the context otherwise clearly indicates, the words and
phrases used in this chapter are defined as follows:
(a) "Ambient Noise" is the composite of noise from all
sources near and far in a given environment, exclusive of
occasional and transient intrusive noise sources and of the
particular noise source or sources to be measured. Ambi-
ent noise shall be averaged over a period of at least 1 5 min-
utes at a location and time of day comparable to that during
which the measurement is taken of the particular noise
source being measured.
(b) "Commercial Purpose" is the use, operation, or mainte-
nance of any sound amplifying equipment for the purpose
of advertising any business, goods, or services, or for the
purpose of attracting the attention of the public to, adver-
tising for, or soliciting patronage or customers to or for
any performance, show, entertainment, exhibition, or
event, or for the purpose of demonstrating such sound
equipment.
(c) "Decibel" (dB) is a unit of level which denotes the ratio
between two (2) quantities which are proportional to
power; the number of decibels corresponding to the ratio
of two (2) amounts of power is ten (10) times the logarithm
to the base (10) of this ratio.
(d) "Emergency Work" is work made necessary to restore
property to a safe condition following a public calamity or
work required to protect persons or property from an
imminent exposure to danger, or work by private or public
utilities when restoring utility service.
(e) "Impulsive Sound" is sound of short duration, usually
less than one second, with an abrupt onset and rapid decay.
By way of example "impulsive sound" shall include, but
shall not be limited to, explosions, musical base drum
beats, or the discharge of firearms.
(f) "Motor Vehicle" includes, but shall not be limited to,
automobiles, trucks, motorcycles, minibikes and go-carts.
(g) "Noncommercial Purpose" is the use, operation, or
maintenance of any sound equipment for other than a
"commercial purpose". "Noncommercial purpose" shall
mean and include, but shall not be limited to, philan-
thropic, political, patriotic, and charitable purposes.
(h) "Octave Band Noise Analyzer" is an instrument for mea-
surement of sound levels in octave frequency bands which
satisfies the pertinent requirements for Class II octave
band analyzers of the American National Standard Speci-
fications for Octave, Half-Octave, and Third-Octave Band
Filters, S 1.1 1-1966 or the most recent revision thereof.
(i) "Person" is a person, firm, association, co-partnership,
joint venture, corporation, or any entity, private or public
in nature.
(j) "Sound Amplifying Equipment" is any machine or
device for the amplification of the human voice, music or
any other sound, but shall not include:
1. Automobile radios, stereo players or television
receivers when used and heard only by the occupants
of the vehicle in which the same is installed.
2. Radio, stereo players, phonographs or television
receivers used in any house or apartment within any
residential zone or within 500 feet thereof.
3. Warning devices on emergency vehicles.
4. Horns or other warning devices authorized by law on
any vehicle when used for traffic purposes.
(k) "Sound Level" (Noise level) in decibels (dB) is the sound
measured with the "A" weighting and slow responses by a
sound level meter; except for impulsive or rapidly varying
. sounds, the fast response shall be used.
(1) "Sound Level Meter" is an instrument including a micro-
phone, an amplifier, an output meter, and "A" frequency
weighting network for the measurement of sound levels
which satisfies the pertinent requirements for Type S2A
meters in American Standard Specifications for sound
level meters in SI. 4- 1971 or the most recent revision
thereof.
(m) "Sound Truck" is any motor vehicle, or any other vehicle
regardless of motive power, whether in motion or station-
ary, which carries, is equipped with, or which has mounted
thereon, or attached thereto, any sound amplifying equip-
ment.
(n) Supplementary DeHnitions of Technical Terms. Defi-
nitions of technical terms not defined herein shall be
obtained from American Standard Acoustical Terminol-
ogy Sl-1-1971 or the most recent revision thereof.
SECTION 111.02
SOUND LEVEL MEASUREMENT
PROCEDURE AND CRITERIA
(a) Any sound level measurement made pursuant to the provi-
sions of this chapter shall be measured with a sound level
meter using the "A" weighting and response as indicated
in Section 1 1 1 .01 (k) of this article.
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Except when impractical, the microphone shall be
located four to five feet above the ground and ten feet or
more from the nearest reflective surface. However, in
those cases where another elevation is deemed appropri-
ated, the latter shall be utilized.
Interior sound level measurements shall be made at a
point at least four feet from the wall, ceiling, or floor near-
est the noise source.
Calibration of the sound level meter, utilizing an acous-
tic calibrator shall be performed immediately prior to
recording any sound level data. The ambient noise level
and the level of a particular noise being measured shall be
the numerical average of noise measurements taken at a
given location during a given time period.
(b) Where the sound alleged to be offending is of a type or
character set forth below, the following values shall be
added to the sound level measurement of the offending
noise:
1 . Except for noise emanating from any electrical trans-
former or gas metering and pressure control equip-
ment existing and installed prior to the effective date
of the ordinance enacting this chapter, any steady tone
with audible fundamental frequency or overtones
have 200 Hz +5
2. Repeated impulsive noise +5
3. Noise occurring more than 5 but less than 15 minutes
in any period of 60 consecutive minutes between the
hours of 7:00 a.m. and 10:00 p.m. of any day -5
4. Noise occurring five minutes or less in any period of
60 consecutive minutes, between the hours of 7:00
a.m. and 10:00 p.m. of any day -5
(c) For those cases where an objectionable noise is clearly
audible, but where the level of ambient noise does not per-
mit direct quantative sound level "A" measurements of the
objectionable noise, sound measurements may be per-
formed utilizing an octave band sound analyzer to deter-
mine sound level "A" limits as indicated in the Table I
below. This table is used to convert the sound pressure
level meter readings in dB for each band to SPL in dB(A)
for each band.
SECTION 111.03
MINIMUM AMBIENT NOISE LEVEL
Where the ambient noise level is less than the presumed
ambient noise level designated in this section, the presumed
ambient noise level in this section shall be deemed to be the
minimum ambient noise level for purposes of this chapter.
TABLE !
OCTAVE BAND NOISE VALUES CORRESPONDING TO SOUND LEVEL "A" VALUES
SOUND LEVEL
OCTAVE BAND SOUND PRESSURE LEVEL, dB re .0002 dyne/cm^
OCTAVE BAND CENTER FREQUENCY IN Hz
"A"
31.5
63
125
250
500
1000
2000
4000
8000
35
58
50
42
35
32
29
26
23
20
40
61
54
46
40
37
34
31
28
25
45
64
58
51
45
42
39
36
33
30
50
67
61
55
50
47
44
41
38
35
55
70
64
60
55
52
49
46
43
40
60
73
68
64
60
57
54
51
48
45
65
76
72
68
65
62
59
56
53
50
70
79
76
73
70
67
64
61
58
55
75
84
81
78
75
72
69
66
63
60
TABLE II
SOUND LEVEL "A" DECIBELS
(In this chart, daytime levels are to be used from 7:00 a.m. to 10:00 p.m. and nighttime levels from 10:00 p.m. to 7:00 a.m.)
ZONE
PRESUMED AMBIENT NOISE LEVEL (dB(A))
Day
Night
Al, A2, RA, RE, RS, RD, RWl, RW2, Rl, R2, R3, R4, and R5
50
40
P, PB, CR, CI, C1.5, C2, C4, C5, and CM
60
55
MI,MRl,andMR2
60
55
M2 and M3
65
65
At the boundary line between two zones, the presumed ambient noise level of the quieter zone shall be used.
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EXCERPTS FROM RELATED LOS ANGELES CITY CODES
SECTION 111.04
VIOLATIONS: ADDITIONAL REMEDIES,
INJUNCTIONS
As an additional remedy, the operation or maintenance of any
device, instrunient, vehicle, or machinery in violation of any
provision of this chapter, which operation or maintenance
causes discomfort or annoyance to reasonable persons or
which endangers the comfort, repose, health, or peace of resi-
dents in the area, shall be deemed and is declared to be.a public
nuisance and may be subject to abatement summarily by a
restraining order or injunction issued by a court order of com-
petent jurisdiction.
SECTION 111.05
ENFORCEMENT, CITATIONS
(a) The Department of Building and Safety shall have the
power and duty to enforce the following noise control pro-
visions of this Code: Section 12.14A-6(h), Section
12.19A-4(b)(l), Section 112.02 and Section 112.04(c).
(b) The Police Department shall have the power and duty to
enforce the following noise control provisions of this
Code: Section 41.32, Section 41.40, Section 41.42, Sec-
tion 41.44, Section 41.57, Section 63.51(m), Section
112.01, Section 112.04, Section 112.05, Section 112.06,
Section 113.01, Section 114.01 through Section 114.05,
inclusive. Section 115.02, and Section 116.01.
(c) Any Building Mechanical Inspector assigned to noise
enforcement inspection shall have the power, authority
and immunity of a public officer and employee, as set forth
in the Penal Code of the State of California, Section 836.5,
to make arrests without a warrant whenever such
employee has reasonable cause to believe that the person
to be arrested has committed a misdemeanor in his pres-
ence which is a violation of any provision set forth in Sec-
tion 111 .05(a) of this chapter. The provisions of said Penal
Code section regarding issuance of a written promise to
appear shall be applicable to arrests authorized herein.
ARTICLE 2
SPECIAL NOISE SOURCES
SECTION 112.01
RADIOS, TELEVISION SETS,
AND SIMILAR DEVICES
(a) It shall be unlawful for any person within any zone of the
City to use or operate any radio, musical instrument, pho-
nograph, television receiver, or other machine or device
for the producing, reproducing or amplification of the
human voice, music, or any other sound, in such a manner,
as to disturb the peace, quiet, and comfort of neighbor
occupants or any reasonable person residing or working in
the area.
(b) Any noise level caused by such use or operation which is
audible to the human ear at a distance in excess of 150 feet
from the property line of the noise source, within any resi-
dential zone of the City or within 500 feet thereof, shall be
a violation of the provisions of this section.
(c) Any noise level caused by such use or operation which
exceeds the ambient noise level on the premises of any
other occupied property, or if a condominium, apartment
house, duplex, or attached business, within any adjoining
unit, by more than five (5) decibels shall be a violation of
the provisions of this section.
SECTION 112.02
AIR CONDITIONING, REFRIGERATION, HEATING,
PUMPING, FILTERING EQUIPMENT
(a) It shall be unlawful for any person, within any zone of the
city to operate any air conditioning, refrigeration or heat-
ing equipment for any residence or other structure or to
operate any pumping, filtering or heating equipment for
any pool or reservoir in such manner as to create any noise
which would cause the noise level on the premises of any
other occupied property or if a condominium, apartment
house, duplex, or attached business, within any adjoining
unit, to exceed the ambient noise level by more than five
(5) decibels
(b) This section shall not be applicable to emergency work as
defined in Section 1 1 1.01(c) of this chapter, or to periodic
maintenance or testing of such equipment reasonably nec-
essary to maintain such equipment in good working order.
SECTION 112.03
CONSTRUCTION NOISE
Noise due to construction or repair work shall be regulated as
provided by Section 41.40 of this Code.
SECTION 112.04
POWERED EQUIPMENT INTENDED FOR
REPETITIVE USE IN RESIDENTIAL AREAS AND
OTHER MACHINERY, EQUIPMENT, AND DEVICES
(a) Between the hours of 10:00 p.m and. 7:00 a.m. of the fol-
lowing day, no person shall operate any lawn mower,
backpack blower, lawn edger, riding tractor, or any other
machinery, equipment, or other mechanical or electrical
device, or any hand tool which creates a loud, raucous or
impulsive sound, within any residential zone or within 500
feet of a residence.
(b) Except as to the equipment and operations specifically
mentioned and related elsewhere in this Chapter or for
emergency work as that, term is defined in Section
111.01(d), and except as to aircraft, tow tractors, aircraft
auxiliary power units, trains and motor vehicles in their
respective operations governed by State or federal regula-
tions, no person shall operate or cause to be operated any
machinery, equipment, tools, or other mechanical or elec-
trical device, or engage in any other activity in such man-
ner as to create any noise which would cause the noise
level on the premises of any other occupied property, or, if
a condominium, apartment house, duplex, or attached
2008 CITY OF LOS ANGELES BUILDING CODE
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EXCERPTS FROM RELATED LOS ANGELES CITY CODES
business, within any adjoining unit, to exceed the ambient
noise level by more than five (5) decibels.
(c) Notwithstanding the provisions of Subsection (a) above,
no gas powered blower shall be used within 500 feet of a
residence at anytime. Both the user of such a blower as
well as the individual who contracted for the services of
the user, if any, shall be subject to the requirements of and
penalty provisions for this ordinance. Violation of the pro-
visions of this subsection shall be punishable as an infrac-
tion in an amount not to exceed One Hundred Dollars
($100.00), notwithstanding the graduated fines set forth in
LAMC§ ll.OO(m).
SECTION 112.05
MAXIMUM NOISE LEVEL OF POWERED
EQUIPMENT OR POWERED HAND TOOLS
Between the hours of 7:00 a.m. and 1 0:00 p.m., in any residen-
tial zone of the City or within 500 feet thereof, no person shall
operate or cause to be operated any powered equipment or
powered hand tool that produces a maximum noise level
exceeding the following noise limits at a distance of 50 feet
therefrom:
(a) 75dB(A) for construction, industrial, and agricultural
machinery including crawler-tractors, dozers, rotary drills
and augers, loaders, power shovels, cranes, derricks,
motor graders, paving machines, off-highway trucks,
ditchers, trenchers, compactors, scrapers, wagons, pave-
ment breakers, compressors and pneumatic or other pow-
ered equipment;
(b) 75dB(A) for powered equipment of 20 HP or less intended
for infrequent use in residential areas, including chain
saws, log chippers and powered hand tools;
(c) 65dB(A) for powered equipment intended for repetitive
use in residential areas, including lawn mowers, backpack
blowers, small lawn and garden tools and riding tractors;
The noise limits for particular equipment listed above in
(a), (b) and (c) shall be deemed to be superseded and
replaced by noise limits for such equipment from and after
their establishment by final regulations adopted by the
Federal Environmental Protection Agency and published
in the Federal Register.
Said noise limitations shall not apply where compliance
therewith is technically infeasible The burden of proving
that compliance is technically infeasible shall be upon the
person or persons charged with a violation of this section.
Technical infeasibility shall mean that said noise limita-
tions cannot be complied with despite the use of mufflers,
shields, sound barriers and/or other noise reduction device
or techniques during the operation of the equipment.
in any place of public entertainment at a sound level greater
than 95dB(A) at any point that is normally occupied by a cus-
tomer, unless a conspicuous and legible sign is located outside
such place, near each public entrance, stating:
"WARNING: SOUND LEVELS WITHIN MAY CAUSE
HEARING IMPAIRMENT,"
ARTICLES
GENERAL NOISE
SECTION 116.01
LOUD, UNNECESSARY AND UNUSUAL NOISE
Notwithstanding any other provisions of this chapter and in
addition thereto, it shall be unlawful for any person to willfully
make or continue, or cause to be made or continued, any loud,
unnecessary, and unusual noise which disturbs the peace or
quiet of any neighborhood or which causes discomfort or
annoyance to any reasonable person of normal sensitiveness
residing in the area. The standard which may be considered in
determining whether a violation of the provisions of this sec-
tion exists may include, but not be limited to, the following:
(a) The level of noise;
(b) Whether the nature of the noise is usual or unusual;
(c) Whether the origin of the noise is natural or unnatural;
(d) The level and intensity of the background noise, if any;
(e) The proximity of the noise to residential sleeping facilities;
(f) The nature and zoning of the area within which the noise
emanates;
(g) The density of the inhabitation of the area within which the
noise emanates;
(h) The time of the day and night the noise occurs;
(i) The duration of the noise;
(i) Whether the noise is recurrent, intermittent, or constant;
and
(k) Whether the noise is produced by a commercial or non-
commercial activity.
12.06. PLACES OF PUBLIC
ENTERTAINMENT
It shall be unlawful for any person to operate, play, or to permit
the operation or playing of any radio, television receiver, pho-
nograph, musical instrument, sound amplifying equipment, or
similar device which produces, reproduces, or amplifies sound
782
2008 CITY OF LQS ANGELES BUILDING CODE
LOS ANGELES ADMINISTRATIVE CODE
DIVISION 1 9, CHAPTER 1
PROCEDURE FOR THE REMOVAL OF ILLEGAL SIGNS
SECTION 19.100
DEFINITIONS
For purposes of this chapter, the following terms are defined.
Illegal sign shall mean any sign or sign structure installed,
maintained or existing on vacant private property in violation
of any law.
Owner shall mean the owner or owners of real property as
shown on the last Equalized Assessment Roll of Los Angeles
County.
Vacant private property shall mean any single lot or parcel of
land described in the records of the County Recorder, held
under Private ownership, which has not been improved by any
lawfully erected permanent building or structure.
(d) A statement that if the sign is removed by City forces, the
cost thereof will be assessed against the real property upon
which the sign is located.
SECTION 19.105
REMOVAL OF ILLEGAL SIGN
If within 10 days after notice has been given as provided in Sec-
tion 19. 104 the owner has not filed an appeal with the Board of
Building and Safety Commissioners as herein above provided,
the Department of Building and Safety shall inspect the prop-
erty. If it is determined that the illegal sign has not been
removed, said department shall notify the Department of Pub-
lic Works which shall immediately enter upon the vacant pri-
vate property in question and remove the illegal sign.
SECTION 19.101
ILLEGAL SIGNS - NUISANCE
It is hereby found and determined that all illegal signs are a
pubHc nuisance to be abated as in this chapter provided.
SECTION 19.102
ENTRY UPON VACANT PRIVATE PROPERTY
Officers and employees of the City upon whom duties are
imposed by this chapter may enter upon vacant private prop-
erty for the purpose of performing such duties.
SECTION 19.103
INTERFERENCE PROHIBITED
No person shall impede or interfere with officers and employ-
ees of the City in the performance of any duties imposed by this
chapter.
SECTION 19.106
COLLECTION OF COSTS
Whenever an illegal sign is removed by the Department of Pub-
lic Works, the costs incurred shall be a personal obligation
against the owner of the property upon which the nuisance is
located, recoverable by the City in an action before any court of
competent jurisdiction. These costs shall include an amount
equal to 40 percent of the cost to perform the actual work, but
not less than the sum of $100.00, to cover the City's costs for
administering any contract and supervising the work required,
unless the work is necessitated by an event or course of events
that prompts the declaration of a local emergency by the
Mayor. In addition to this personal obligation and all other rem-
edies provided by law, the City may collect any judgment, fee,
cost, or charge, including any permit fees, fines, late charges, or
interest, incurred in relation to the provisions of this section as
provided in Los Angeles Administrative Code Sections 7.35.1
through 7.35.8
SECTION 19.104
NOTICE OF ILLEGAL SIGNS
Whenever it is determined by the Department of Building and
Safety that an illegal sign exists on vacant private property in
the City, said department shall give written notice by registered
or certified mail to the owner of such property. Said notice shall
include the following:
(a) A statement of the determination that an illegal sign exists ;
(b) A statement requiring the owner, within 10 days, to
remove the sign or, in the alternative, appeal the determi-
nation to the Board of Building and Safety Commission-
ers;
(c) A statement that if the owner fails to remove the sign, or
appeal to the Board of Building and Safety Commission-
ers as herein above provided, said sign will be removed by
City forces;
2008 CITY OF LOS ANGELES BUILDING CODE
783
784 2008 CITY OF LOS ANGELES BUILDING CODE
INDEX
ESS ArSLE (Definition) 202, 1 102B
CCESS OPENINGS
Attic 1209.2
Crawl space 1209.1
Doors 711.3.2
Fire damper 716.4
Fire department 402.16
IViechanical appliances 1209.3
Refuse/laundry chutes 707.13.3
CCESSIBILITY Chapters 11 A, 11B, 11C
Airports 1 121 B
Assembly occupancies 1 104B
Assembly seating 1 104B
Assistive-listening systems 1104B.2
Bathing and toilet facilities
(sanitary facilities) general. . . Chapter 11 A, 1115B
Bus stops 1 121B.2
Commercial buildings Chapter 11B
Detectable warnings . . . 1107A.4-D,1112A.9, 1102B,
1121B.2.1, 1121B.3.1, 1127B.5, 1133B.8.5
Detention and correctional facilities 1105B
Dining areas 1 104B.5
Dwelling units Chapter 1 1A, 1 1B
Egress •. .1007
Elevators 1007.2.1 , 1007.4,
1124A, 1103B. 1,3001.3
Employee work areas 1 123B, 907.9.1 .2
Entrances 1 133B. 1. 1
Existing buildings 1134B
Facility accessibility 1114B
Factory and warehouse occupancies 1 107B
Group A occupancies 1 104B
Group B occupancies 1 105B
Group E occupancies 1 106B
Group H occupancies 1 108B
Group I occupancies 1 109B
Group M occupancies 11 10B
Group R occupancies 1111B
Hazardous occupancies 1 108B
Historic buildings 1135B, Chapter 34
Institutional occupancies 1109B
Lifts 1007.5, 1124A, 1116B.2
Maintenance 1 101B.3
Mercantile occupancies 1110B
Multifamily dwellings (covered) Chapter 1 1A
Parking and passenger
loading facilities 1129B, 1130B, 1131B
Performance areas 1 104B
Platform, raised 1104B.3.11, 1104B.6
Public accommodations Chapter 11B
Public buildings Chapter 1 1B
Publicly funded housing Chapter 11B
Ramps 1010, 1 133B.5
Recreational facilities 1 104B.4, 1 132B
Religious facilities 1 104B.6
Residential occupancies Chapter 11 A, 1111B
Route 1114B.1.2
Scoping 1 101 A. 1, 1 103B. 1
Signage Chapter 10, 11 A, 11B, 1117B.5
Storage Chapter 1 1A, 1 125B
Telephone 1117B.2
Toilet and bathing facilities .... Chapter 11 A, 11 15B
Transient lodging Chapter 2, 1102A,
1107A, 1111B.4
Transportation facilities and stations 1121B
ACCESSIBLE MEANS OF EGRESS 1002.1,
1007, 1102B
ADAPTABILITY (definition) 202, 1 102B
ADDITION (definition) 202
ADMINISTRATION ' CA Chapter 1,
Appendix Chapter 1
ADMINISTRATIVE
AUTHORITY (definition) 202, 1102B
ADOBE CONSTRUCTION 2102.1, 2109.8
AGED HOI\/IE OR INSTITUTION (definition). . . . 310.2
AGRICULTURAL BUILDINGS
(GROUP U) .312.1, Appendix C
AIR CONDITIONING
(see MECHANICAL) 101.4.3, 2801.1, 3006.2
AIR INTAKES (YARDS OR COURTS) 1206.3.2
AIRCRAFT HANGARS 412.2
Aircraft paint hangars 412.4, 507.8
Basements 412.2.2
Construction exterior walls 412.2.1
Heliports and helistops 412
Residential 412.3, 907.2.21
Unlimited height 504.1
AIRCRAFT-RELATED OCCUPANCIES 412
Airport traffic
control towers 412.1, 412.1.6, mi. 2.22
Egress 412.1.3
Fire detection systems,automatic 412.1.4,
907.2.22
Standby power 412.1.5,2702.2.18
Type of construction 412.1.2
2008 CITY OF LOS ANGELES BUILDING CODE
785
DNDEX
Accessible 1 133B.6
Assembly seating 1025
Bleachers 1025.1
Ciieck-out 1110B, 3409.8.11
Converging 1025.9.3
Definition 202, 1 102B
Egress 1014.4, Chapter 1 1A,
Chapter 11 B, 1133B.6
Employee areas, definition 202, 1 102B
Folding and telescopic seating 1025.1.1
Grandstands 1025.1
Obstructions 1025.9.6
Tents 3103.4
Walking surfaces 1025.11
Width 1025.9.1, 1133B.6.2
LARM SYSTEMS, EWIERGENCY 908
LARMS, FIRE (see FIRE ALARSVi
AND DETECTION SYSTEMS)
MS, VISIBLE 907.9.1
High-rise buildings 907.2.12.2
ALCOVES 11 15B.4.6
ALLOWABLE STRESS DESIGN 1602.1
Load combinations 1605.3
Masonry design 21 01 .2.1 , 21 07
Wood design 2301 .2, 2306
AlTERATf ONS 3403
Accessibility 1 134B
Compliance alternatives 3410
ALTERNATING TREAD DEVICES 1009.9
Construction 1009.9.2
Galleries, catwalks and gridirons 101.5.6.1
S 104.11
l^UMINUMl 1404.5.1, 1604.3.5, Chapter 20
VJUSEW/iENT BUILDING, SPECIAL 41 1
Emergency voice/alarm
communications system 41 1 .6
Exit marking 411.7
Fire detection, automatic 41 1 .3
Interior finish 41 1 .8
Smoke detection system 907.2.1 1
Sprinklers, automatic 41 1 .4
iUSEG\^ENT PARK STRUCTURES 303
S8CH0R STORE (see COVERED MALL
BUILDINGS) 402.2
Construction type 402.6
Means of egress 402.4.3.1
Occupant load 402.4.1.3
SiCHORAGE 1604.8
Braced wall line sills 2308.3.3
Concrete 1911, 1912
Concrete walls 1604.8.2
Conventional light-frame
construction. . . 2308.11.3.1, 2308.12.7, 2308.12.9
Decks 1604.8.3
Empirical design of masonry 2109.7
Masonry walls 1604.8.2, 2106.2
Perforated shear walls 2305.3.8.2
Seismic anchorage for masonry chimneys. . . 21 13.4
Seismic anchorage for masonry fireplaces. . . 21 1 1 .4
Wood sill plates 2305.3.1 1 , 2308.3.3
iSI (definstioni) 202
Standards Chapter 35
APARTMENT HOUSES 310.1
APPEALS 112
APPROVED (defmitson) 202
APPROVED TESTING AGENCY (defmition). 202
ARCHITECT (see definition for REGISTERED
DESIGN PROFESSIONAL)
ARCHITECTURAL TRIM 1406.2.2
AREA, BUILDING Chapter 5
Enclosed parking garage 509.2, 509.3, 509.4
Limitations 503, 505
Membrane structures 3102.4
Mezzanines 505.2
Mixed construction types 3102.6
Mixed occupancy 508
Modifications 506
Open parking garage . 509.2, 509.3,
509.4, 509.7, 509.8
Residential aircraft hangars 412.3.6
Unlimited 503.1.3, 506.2.1, 507
AREA FOR ASSISTED RESCUE, EXTERIOR (see
EXTERIOR AREAS FOR ASSISTED RESCUE) '
AREA OF REFUGE 1007.6
Definition 202, 1002. 1, 1 102B
Visible communication method 1007.6.3.1
ASSEMBLY AREA (cJefinition) 202, 1 102B
ASSEMBLY OCCUPANCY (GROUP A) . . . . 303, 1025
Accessibility 1 104B
Accessory 508.3.1
Aisles 1 025.9
Bleachers (see BLEACHERS)
Egress, special provisions 1008.1.9
Fire alarms 907.2.1
Folding and telescopic seating 1025.1.1
Grandstands (see GRANDSTANDS)
Interior finishes Table 803.5
Live load Table 1 607.1
Motion picture theaters 507.10
Panic hardware 1008.1 .9
Seating, fixed (see SEATING, FIXED)
786
2008 CITY OF LOS ANGELES BUILDING CODE
INDEX
Seating, smoke-protected 1025.6.2
Sprinklers 507.3, 507.6, 507.10, 903.2.1
Standby power systems 2702.2.1
Standpipes 905.3.2
ASSISTED LIVING (see RESIDENTIAL
CARE/ASSISTED LIVING FACILITIES)
ASSISTIVE DEVICE (definition) 202,1 107 A. 1-A
ATRIUM ..404
Automatic sprinkler protection 404.3
Enclosure 404.5
Fire alarm system 907.2.13
Interior finish 404.7
Smoke control 404.4, 909
Standby power 404.6
Use 404.2
ATTIC
Access 1209.2
Combustible storage 413.2
Draft stopping 71 7.4
Insulation 719.3.1
Live load Table 1607.1
Unusable space fire protection 71 1 .3.3
Ventilation 1203.2
AUDITORIUM 303.1
Accessibility 1 104B
Foyers and lobbies 1 025.4
Interior balconies and galleries 1025.5
Motion picture projection rooms 409
Stages and platforms 410
AUTOMATED TELLER MACHINES AND
POINT OF SALE MACHINES 1117B.7
AUTOMATIC DOOR
Definition 202, 1 107 A. 1-A, 1 102B
AUTOMOBILE PARKING GARAGE
(see GARAGE, AUTOMOBILE PARKING) ..... 406
AWNINGS
Design and construction 3105.3
Drainage, water 3201 .4
Live load 1 607.1 1 .2.4
Plastic 2606.10
Public right-of-way
encroachments 3202.2.3, 3202.3.1
B
BALCONIES 1014.5
Accessibility 1 120A
Construction requirements 1406.3
Egress, means of 1014.5, 1016.3, 1025.5
Emergency escape 1026.1
Encroachments 3202.3.2
Exterior 1602.1, 1016.3
Guards 1013.1
Interior 1025.5
Live load Table 1607.1
Projection 704.2, 1406.3
Travel distance 1016.3
BARBECUES 2801
BARRIERS, VEHICLE 406.2.4, 1602.1, 1607.7.3
BASEMENT (see UNDERGROUND BUILDINGS)
Aircraft hangars 412.2.2
Area modification 506.1
Considered a story 502.1
Emergency escape 1 026
Flood loads 1612.2
Height modifications for . . 509.2, 509.3, 509.4, 509.5
Prohibited 415.4, 415.5, 415.6.3.5,
415.8.5.2.2,418.1
Rodent proofing Appendix F
Sprinklers 903.2.10.1
Waterproofing and damp proofing 1807
BASEMENT WALLS
Concrete Table 1904.2.2, 1909.6.1
Soil loads 1610.1
Waterproofing and dampproofing 1807
BASIC BUILDING AND STRUCTURES 440.3. 1
BASIC WIND SPEED 1609.3
BATHING AND TOILET FACILITIES
(SANITARY FACILITIES), ACESSIBLE 11 153
BATHROOM (ACCESSIBLE) 1107A.2-B
For efficiency dwelling units 1208.4
BAY AND ORIEL WINDOWS 1406.4
BEDRIDDEN PERSON (definition) 310.2
BLEACHERS 303.1
Accessibility 1104B.4
Egress 1025.1.1
Footboards .* . . . 1025.1 .1
Occupant load 1 004.7
BLOCK (see CONCRETE BLOCK,
and GLASS UNIT MASONRY)
BOARD OF APPEALS 112, Appendix B
Application for appeal B101.1
Alternate members 81 01 .2.1
Board decision B1 01 .4
Limitations on authority 1 12.2
Membership of board B101 .2
Notice of meeting B1 01 .3
Qualifications 112.3, B101.2.2
BOILER ROOM
Exits 1015.3
BOLTS 2204.2
Anchors 912, 1913, 2103.13.5, 2204.2.1
High strength, steel 1704.3.3
BONDING, MASONRY 2103.9, 2109.6, 2109.7.2.1
2008 CITY OF LOS ANGELES BUILDING CODE
787
INDEX
D) WALL LIME 2302.1 , 2308.3
Bracing 2309.3
Seismic requirements 2308.12.3, 2308.12.4
Sill anchorage 2308.3.3
Spacing 2308.3.1
Support 2308.3.4
81RACED WALL PANEL 2302.1 , 2308.9.3
Alternative bracing 2308.9.3.1, 2308.9.3.2
Connections 2308.3.2
miCK (see MASOEMRY)
Calculated fire resistance 721 .4
Foundations 1805.5
Veneer , 1405.5, 1405.9
Access, fire department 402.16
Accessibility (scope) 1101 A.1, 1103B.1
Area (see AREA, BUILDING) Chapter 5
Definition 202
Demolition 3303
Existing 202, 1 134B, Chapter 34
Height (see HEIGHT, BUILDING) Chapter 5
Occupancy classification Chapter 3
JIG DEPARTiiEINlT 103
^E (defmirmn) 202, 1107A.2-B
^yiLDOMG OFFICIAL
Definition 202
Duties and powers 1 04
Qualifications A101.1
Records 1 04.7
Termination A1 01 .4
1507.10
CY (GROUP B) 304
Accessibility 1 1058
Aisles 1014.4.1, Chapter 11 A,
Chapter 118, 1133B.6
Educational above 12th grade 304.1
Fire alarm 907.2.2
Parking under 509.2, 509.7, 509.8
CABLES, STEEL STRUCTUIRAL 2207
CALCULATED FIRE RESISTANCE (see FIRE
CANOPIES 3105
Fire district D102.2.8
Live load 1607.11.2.4
Materials 3105.4
Motor vehicle service stations 406.5.2
Permanent D102.2.8
^ARE AND SUPERVISION (defsmtsom) 310.2
CARPET
Floor covering 804.2
Textile wall coverings 803.6.1
Textile ceiling finish 803.6.2
L . . 310.2
Means of egress 410.3.2, 1015.6.1
Sprinklers 410.6
202
Height 409.2, 909.20.4.3, 1205.2.2, 1208.2
Interior finish 803
Penetration of fire-resistant assemblies 707,
712.4,716.2,716.6
Suspended acoustical 803.9.1.1
308.4.6
308.4.6
308.4.6
'EFILMJ 409.1,903.2.4.3
CERAMIC TILE
Material requirements 2103.5
Mortar 2103.10
CERTIFICATE OF OCCUPANCY 110
CHILD CARE (see DAY CARE) 305.2, 308.3.1,
308.5.2, 407.1
CHIMNEYS 2102.1,2111
Factory-built .717.2.5
^MRONiCALLY SLL - TERMINALLY ILL 310.2
CHURCHES (see RELIGIOUS WORSHIP,
ESOF)
S (see CI
202, 11028
1507.3
Testing 1 71 5.2
202, 11028
'eflmtmn) 202, 1 1028
1226. 16
—GENERAL REQUIREMENTS
Application 1226.2
Ceiling heights 1226.8
Corridors and hallways 1226.5
Definitions 1226.3
Doors and door openings 1226.6
Elevators 1226. 1 1
Garbage — solid wastes and trash storage . . 1226. 12
General construction 1226.4
Interior finishes — floors and bases 1226.9
Laundry and trash chutes 1226. 13
Scope 1226. 1
Windows and screens 1226.7
Walls and ceilings 1226. 10
788
2008 CDTY OF LOS ANGELES BUBLDING CODE
INDEX
CLSNSCS— PRIMARY CARE
Abortion services 1226. 14
Clinical facilities 1226. 15
7S— PSYCHOLOGY CLINICS 1226.20
7S— SPECIALITY CLINICS
Ctironic dialysis clinics 1226. 18
Rehabilitation Clinics. 1226. 19
Surgical clinics 1226.17
CLOSED-CIRCUIT
TELEPHONE (definition) 202, 1 102B
COAL POCKETS 415.6.1.6
COLD STORAGE, FOAM PLASTIC
INSULATION 2603.3, 2603.5
Thermal barrier 2603.4, 2604.1.1, 2604.1.3
COLD-FORMED STEEL. . 2202.1 , 2209
Special inspection for seismic resistance .... 1707.4
Light-frame construction . 2210
COMBUSTIBLE DUSTS 415.6.1
COMBUSTIBLE LIQUIDS 415.6.2
COMBUSTIBLE MATERIAL
High-pile stock or rack storage 413.1, 910.2.2
In concealed spaces 413.2, 717.5
In Type I and Type II 603, 805.1
On exterior side of exterior wall 1406
COMBUSTIBLE PROJECTIONS 704.2, 1406.3
COMBUSTIBLE STORAGE 413, 910.2.2
COMMERCIAL COOKING SYSTEMS 904.11
COMMERCIAL FACILITIES 202, Chapter 1 1B
Located in private residences 1101B.6
COMMON PATH OF EGRESS TRAVEL 1014.3
COMMON USE AREAS (definition) 202,
1107A.3-C, 1102B
COMPARTMENTATION
Underground buildings 405.4
Values 3410.6.3
COMPLIANCE ALTERNATIVES 3410
COMPRESSED GAS 307.2, 415.8.7.2.2
CONCEALED SPACES 413.2, 717
CONCRETE .Chapter 19
Anchorage 1911, 1912
Calculated fire resistance 721 .2
Conduits embedded in 1906
Construction documents 1901 .4
Construction joints 1 906
Curing 1905.11
Durability 1904
Exposure conditions 1904
Footings 1805.4.2
Formwork 1 906
Foundation walls 1805.5
Materials 1704.4.1, 1903
Mixing 1905
Pipe columns, concrete-filled 1915
Pipes embedded in 1906
Placing 1905
Plain, structural 1 909
Proportioning 1905.2
Quality 1905
Reinforced gypsum concrete 1914
Reinforcement 1907
Rodentproofing Appendix F
Roof tile 1507.3, 1715.2
Shotcrete 1913
Slab, minimum 1910
Special inspections 1704.4, Table 1704.4
Specifications : 1 903
Strength testing 1704.4.1, 1905.6
Wood support 2304.12
CONCRETE MASONRY
Calculated fire resistance 721 .3
Construction 21 04
Design 21 01 .2
Materials 2103.1
Surface bonding 2109.2.3
Testing 2105.2.2.1.2
Wood support 2104.1.6, 2304.12
CONCRETE ROOF TILE 1507.3
Wind resistance 1609.5.3, 1715.2
CONDOMINIUM (see APARTMENT HOUSES)
CONDUIT, PENETRATION PROTECTION 711.5,
712.3, 1020.1.1
CONFLICTS IN CODE 102.1
CONGREGATE LIVING HEALTH
FACILITY (CLHF) (definition) 310.2
CONGREGATE RESIDENCE (definition) 310.2
CONSTRUCTION DOCUMENTS 106, 1603
Concrete construction 1901.4
Construction, fire protection . . . 708.1, Table 1017.1,
1017.5
Design load-bearing capacity 1802.6
Fire alarm and detection systems 907.1 .1
Fire-resistant joint systems 713
Floor live load 1603.1.1
Masonry 2101.3
Means of egress 106.1.2
Penetrations 712
Permit application 105.1
Retention 106.5
Review 1 06.3
Roof assemblies 1503
Roof live load 1603.1 .2
Roof snow load 1603.1 .3
Seismic .1603.1.5
Site plan 106.2
2008 CITY OF LOS ANGELES BUILDING CODE
789
INDEX
Soil classification 1802.6
Special loads 1 603.1 .7
Systems and components 1603.1.8
Windload .1603.1.4
DNSTRUCTION JOIMTS
Concrete 7 1 906.4
Shotcrete 1913.7
. . Chapter 32
. . . Chapter 6
Automobile parking garage . . . Table 406.3.5, 509.2,
509.3, 509.4, 509.7, 509.8
Classification 602
Combustible material in Type i and
Type II construction . 603
Covered mall buildings 402.6
Fire resistance Table 601 , Table 602
High-rise. 403.3.1
Underground buildings 405.2
^OMTRACTOR'S RESPONSIBILITIES. . . 901.5, 1706
CONTROL AREA 414.2
CONTROLS AND OPERATSNG
MECHANISMS 1 117B.6
CONVENTIONAL LIGHT=FRAI\liE
CONSTRUCTION 2301.2.3, 2302.1, 2308
Additional seismic requirements . . 2308.11, 2308.12
Braced wall lines 2308.3
Connections and fasteners 2308.5
Design of elements 2308.4
Floor joists 2308.8
Foundation plates or sills 2308.6
Girders 2308.7
Limitations 2308.2
Roof and ceiling framing 2308.10
Wall framing 2308.9
CORNICES
Live load Table 1 607.1
Masonry 2104.2.1
Projection 704.2, 1406.3
Draftstopping 717.2.6
70RRECTS0NAL TREATMENT CENTERS
Application 1227.2
Ceiling lieights 1227.8
Corridors 1227.5
Definitions 1227.3
Doors and door openings 1227.6
Elevators , 1227. 10
Garbage — solid waste and trash storage . . . 1227. 1 1
General construction 1227.4
Scope 1227.1
Windows and screens 1227.7
Interior finishes 1227.9
CORRECTIONAL TREATMENT CENTERS - BASSC
SERVICES
Administration space 1227. 16
Central sterile supply 1227.17
Dietetic service space 1227. 14
Employee dressing rooms and lockers 1227. 19
Housekeeping room 1227.20
Nursing service space 1227. 12
Offices 1227. 15
Pharmaceutical service space 1227. 13
Storage 1227. 18
CORRECTIONAL TREATMENT CENTERS -
OPTIONAL SERVICES
24-hour mental health care services 1227.23
Outpatient services 1227.22
Service spaces 1227.21
CORRIDOR 1017
Accessibility 1 133B.3
Dead end 1017.3
Elevation change 1003.5
Headroom 1003.2, 1003.3.1
HPM service 903.2.4.2
Live load Table 1607.1
Walls 708.1, 1017.1
Width 1017.2
CORRIDOR PROTECTION, EXIT ACCESS
Construction fire protection 708.1 ,
Table 1017.1, 1017.5
Doors 715.4
Interior finish .Table 803.5, 804.4
Opening protectives Table 715.4
Return and exhaust air 716.5.4.1
CORROSIVES 414.3
COURTS 1206
COVERED MALL BUILDINGS 402
Emergency voice/alarm system 907.2.20
Standby power 2702.2.14
Standpipe system 905.3.3
COVERED MULTIFAMILY (definition) 202,
1107A.3-C
COVERED WALKWAY 3306.7
CONVEYING SYSTEMS 3005
Accessibility 109. 1, 1 124A, 1 1 16B,
3001. 1, 3001.3
CRAWL SPACE
Access 1209.1
Drainage 1807.1.2
Ventilation 1203.3
CRIPPLE WALL 2302.1 , 2308.9.4
CROSS SLOPE (definition) ..202, 1107A.3-C, 1102B
790
2008 CDTY OF LOS ANGELES BUILDING CODE
INDEX
SiENIC FLUIDS Table 307.1,
Table 414.5.1 , Table 415.8.2.1.1
CUT (definition) 202, 1107A.3-C, 1102B
CURB RAMl^ (definition). . . . 202, 1107A.3-C, 1102B
CURVED STAIRWAYS .1009.7
DAMPERS (see FIRE DAMPERS
and SMOKE DAMPERS) 716.2-716.5
DAMPPROOFING AND WATERPROOFING 1807
Required 807.2, 1807.3
Subsoil drainage system 1807.4
305.2,308.5
Adult care 308.5.1
Child care 308.5.2
Egress 308.5.2, Table 1004.1.1,
Table 1015.1, Table 1019.2
Definition (SFM) 310.2
CARE HOME, LARGE-
FAMILY(definition) 310.2
DAY CARE HOME, SMALL-
FAMiLY(definition) 310.2
DAY ROOM (definition) 308.4.6
DEADEND 1017.3
DEAD LOAD 1602.1, 1606
Footing design load 1805.4.1.1
DECK 1602.1
Anchorage 1604.8.3
Pool median ism 3113B.1 Exception 4
DEFLECTIONS 1604.3.1
Framing supporting glass 2403.3
Preconstruction load tests 1714.3.2
Wood diaphragms 2305.2.2
Wood shear walls 2305.3.2, 2305.3.8.2.9
DEMOLITION 3303
DESIGN STRENGTH 1602.1, 2102.1
Conformance to standards 1710.1
New materials 1710.2
DESIGNATED SEISMIC SYSTEM •. . . 1702.1
Seismic qualification 1708.5
Special inspection 1707.9
DETACHEDSINGLE-FAMILY
DWELLING (definition) 202
DETECTABLE
WARNING (definition) 202, 1107A.4-D, 1102B
DIAPHRAGMS 1602.1, 2102.1, 2302.1
Empirical masonry 2109.2.1.2
Flexible. . 1613.6.1
Special inspection 1704.6.1, 1707.3
Wood .2305.2, 2306.3
DIRECTIONAL SIGN 202
202
DISABLED 202
DOORS . . . 1008, Chapter 11 A, Chapter 1 1B, 1133B.2
Access-controlled 1008.1.3.4
Accessibility 1 133B.2
Automatic and power-assisted
doors (Hinged doors) 1 133B.2.3.2
Closer-effort to operate doors (doors). . . . 1133B.2.5
Door closer (closer-effort to
operate doors). 1 133B.2.5. 1
Emergency escape 1 026
Fire (see OPENING
PROTECTIVES) 715.4, 1020.1.1
Glazing 715.4.6, 1405.12
Floor level at doors 1 133B.2.4
Hardware (see LOCKS AND LATCHES) . . 1008.1.8,
1 133B.2.5.2
Horizontal sliding 1008.1 .3.3
Landings 1008.1.5, 1133B.2.4.4
Operation 1008.1.8
Panic and fire exit hardware 1008.1 .9
Power operated 1008.1 .3.2
Revolving 1008.1.3.1, 1133B.2.3.3
Security grilles 1008.1.3.5
Side swinging 1008.1 .2
Smoke barrier 709.5
Smooth surface 1 133B.2.6
Structural testing, exterior 1714.5
Thresholds 1003.5, 1008.1.4,
1008.1.6, 1133B.2.4.1
Type of lock or latch 1133B.2.1
Vestibule 909.20.2.1
Width 1008.1.1
Width and height 1 133B.2.2
DORMITORY (definition) 202,308.4.6, 310.2
DRAFTSTOPPING
Attics 717.4
Floor-ceiling assemblies 717.3
DRINKING FOUNTAINS 1115B.4.6
DRY CLEANING PLANTS 415.6.4
DRYING ROOMS 417
DUCTS AND AIR TRANSFER OPENINGS . . . 704.14,
706.10,716
DUMBWAITERS 707.14
DWELLING UNIT (definition) 202,
1107A.4-D, 1102B
E
EARTHQUAKE LOADS (see SEISMIC) 1613
Construction documents 1603.1.5
Seismic design category 1613.2
Site class 1613.2, 1613.5.2
Site classification for seismic design ....:. 1613.5.5
2008 CITY OF LOS ANGELES BUILDING CODE
791
DNDEX
Site coefficients 1613.2, 1613.5.3
Wind and seismic detailing 1604.10
WES (see COiWBUSTlBLI
CY (GROUP E) 305
Accessibility 1 106B
Day care 305.2
Egress, special provisions 1008.1.9
Fire alarm 907.2.3
Fire-resistive substitution
for new campus 903.2.2. 1.3
Live load Table 1607.1
Manual fire alarm boxes 907.3
Manuai fire alarm boxes (height) 907.3.2
Panic hardware 1008.1 .9
Public schools
Automatic fire alarm system
requirments 907.2.3.7
Automatic sprinkler system
requirements 903.2.2. 1
New public school campus 903.2.2. 1. 1
Permanent portable buildings 903.2.2. 1.2,
907.2.3.8.1,907.2.3.8.2
Portable buildings — automatic
fire alarm system requirements 907.2.3.8
Smoke detectors 907.2.3.6
Special occupancy separation 508.3.1 ,
Table 508.3.3
Sprinkler system 903.2.2
State Fire Marshal 442
EFFICIENCY DWELLmG UNIT 1208.4
EGRESS (see MEANS OF EGRESS) Chapter 10
ELECTKDC VEHICLE 406.7
ELECTRDCAL Chapter 27
ELEMENT (defimtsoini) 202, 1 102B
ELEVATOR
Accessibility 109.1, 1007.2.1, 1007.4
1124A, 1116B, 3001.1, 3001.3,
3409.8.2, Part 7 Article 7-15
Sections 7-3093 through 7-3094.5
Attendant-operated 3003.2.2
Car size 1116B.1.8, 3002.4
Construction 707.14
Control values 3410.6.14
Conveying systems 109.1, 1124A, 1116B,
3001.1,3001.3,3005
Emergency operations 3002.3, 3002.5, 3003
Entrance openings and car size 1116B.1.4,
1116B. 1.8, 3002.4.3.1
General stretcher requirements 3002.4.1
Gurney size 3002.4. 1. 1
High-rise 403.9
Hoist way doors 3002.4.2
Automatic operation and automatic
power-operated 3003.2. 1
Hoist way enclosures 3002, 3005.3.1
Hoist way venting 3004
Key-operated three position
bypass switch 3003.2. 1. 1
Lobby 707.14.1, 1007.4
Machine rooms Table 1607.1 , 3006
Number of elevator cars in hoist way 3002.2
Passenger (definition) 202, 1 102B
Personnel and material hoists 3005.4
Photoelectric tube bypass switch 3002.9
Recall 3002.4.4
Seismic requirements 1613
Shaft enclosure 707.14
Signs 1007.7
Standby power 1116B.3.1, 2702.2.5, 2702.2.19
ER/IERGENCY COMMUNICATIONS
Area of refuge 1007.6.3
Visible communication method 1007.6.3. 1
EMERGENCY EGRESS OPENINGS 1026
Window wells 1026.5
EMERGENCY LIGHTING 1006
EMERGENCY POWER
Exit signs 101 1 .5.3, 2702.2.3
Group 1-3 408.4.2, 2702.2.17
Hazardous 414.5.4, 41 5.8.10
High-rise. 403.11, 2702.14
Means of egress illumination 1006.3
Underground buildings 405.10
EMPIRICAL DESIGN OF MASONRY. . . 2101.2.3, 2109
Adobe construction 2109.8
Anchorage 2109.7
Bond 2109.6
General 2109.1
Compressive stress requirements 2109.3
Lateral stability 21 09.2
Lateral support 2109.4
Quality assurance 1708.1
Special Inspection 1704.5
Thickness of masonry 2109.5
EMPLOYEE
Accessibility for work areas 907.9.1 .2,
1110B.1.2, 1123B
Qualifications A101
Termination of employment A101 .4
Workstations 1 123B.2
ENCLOSED, WALKWAY 3104
ENCROACHMENTS INTO THE
PUBLIC RIGHT OF WAY Chapter 32
END-JOINTED LUMBER 2303.1.1
ENERGY EFFICIENCY Chapter 13
792
2008 CDTY OF LOS ANGELES BUILDING CODE
INDEX
ENFORCING AGENCY . .202
California Energy Commission 105
California State Lands Commission 114
Corrections Standards Authority 103
Department of Consumer Affairs 104
Department of Food and Agriculture 106
Department of Health Services 107
Division of the State Architect-
Access Compliance 109. 1
Division of the State
Architect— Structural Safety 109.2
Housing and Community Development 108
Office of the State Fire Marshal Ill
Office of Statewide Health
Planning and Development 110
Special Conditions for Persons with Disabilities
Requiring Appeals Action Ratification 109.1.5
State Librarian .112
ENGINEER (see definition for REGISTERED
DESIGN PROFESSIONAL)
ENTRANCE (definition) 202, 1 102B
ENTRANCES, EXITS AND PATHS OF TRAVEL
(Building Accessibility) Chapter 1 1A, 1 133B
EQUIVALENT FACILITATION (definition) 202,
1107A.5-E, 1102B
EQUIVALENT OPENING FACTOR Figure 704.7
ESCALATORS 3005
Floor opening protection 707.2
Illumination 2702.2.4
iVIeans of egress 1003.7
ESSENTIAL FACILITIES (see OCCUPANCY
CATEGORY) 1602.1
EXCAVATION, GRADING AND FILL .... 1803
EXISTING BUILDING
Accessibility 1134B
Additions, alterations, or repairs 3403
Change of occupancy 3406
Definition (see BUILDING, EXISTING) 202
Flood resistant Appendix G
General (accessible existing buildings) . . . . 1 134B.2
Historic 109. 1, 1 135B, 3407
IVIoved structures 3408
Rodentproofing Appendix F
EXIT (see MEANS OF EGRESS) .1018-1023
Accessibility 1 133B. 1
Aisles 1014.4, Chapter 11 A,
Chapter 1 1B, 1133B.6
Aisles with tables • 1014.4.3
Boiler roonns 1015.3
Construction 706.1
Corridors 1017
Courts 1024.5
Definition 202, 1002. 1, 1 102B
Discharge 1 024
Enclosure 1 020.1
Entrances and exterior ground
floor exit doors 1 133B. 1. 1. 1
Fire resistance 706.3, 1020
Furnace rooms 1 01 5.3
Horizontal 1022
Illumination 1006.1
Incinerator rooms 1015.3
Interior finish Table 803.5
Mezzanines 505.3, 1004.6
Number, minimum 1019.1
Passageway 1 021
Path, common 1014.3
Refrigerated rooms or spaces 1015.5
Refrigeration machinery rooms 1015.4
Signs 1011
Temporary restrictions (entrances) . . . 1133B.1.1.1.2
Travel distance 1016
Underground buildings 405.8
EXIT ACCESS
(see MEANS OF EGRESS) 1014-1017
EXIT DISCHARGE
(see MEANS OF EGRESS) 1024
EXIT LADDER DEVICES. 3411.6.1
EXIT PASSAGEWAY
(see MEANS OF EGRESS) 1021
EXIT SIGNS 1011
Accessibility 1007.6.4, 1007.6.5,
1007.7, 1007.8.3, 1011.3
Special amusement buildings 41 1 .7
Tactile 1011.3
EXPLOSIVES Table 414.5.1, Table 415.3.1,
Table 415.3.2
EXPLOSIVES (SFM) 434
EXPOSURE CATEGORY (see WIND LOAD) . . 1609.4
EXTERIOR AREAS FOR
ASSISTED RESCUE 1007.8
EXTERIOR EXIT BALCONIES 1133B.3
EXTERIOR ROUTES OF TRAVEL 1 127B
EXTERIOR WALLS
(see WALLS, EXTERIOR) 704, Chapter 14
FACILITY (or FACILITIES)
Accessibility Chapter 11 A, 11 14B
FACTORY OCCUPANCY (GROUP F) 306
Accessibility (factories and warehouses) . . . . 1 107B
Dead end corridor 1 01 7.3
Low hazard occupancy 306.3
Moderate hazard occupancy 306.2
2008 CITY OF LOS ANGELES BUILDING CODE
793
INDEX
Smoke and heat vents 910.2
Travel distance 1016.1
202
Appendix C
IG, WOOD CONSTRUCTION 2304.9
FEES PERRflIT 108
Refunds 108.6
Related fees 108.5
Work commencing before issuance 1 08.4
FENCES 312.1
FIBERBOARD 2302.1 , 2303.1 .5
Shear wall 2306.4.4
FILL ft/lATERIAL 1803.5
FiiSSGER=JOBNTED LUMBER (see END=J0INTED
LUMBER)
FIRE ALARM AND DETECTION SYSTEMS
Aerosol storage 907.2.16
Assembly 907.2.1
Audible alarm , 907.9.2
Audible alarm signal 907.9.2. 1, ANSI S3.41-96
Battery room 907.2.23
Construction documents 907.1 .1
Covered mall 907.2.20
High-rise 907.2.12
Lumber mills 907.2.17
Occupancy requirements 907.2
Special amusement buildings 907.2.1 1
Underground buildings 907.2.18, 907.2.19
Visible alarm. 907.9.1
FIRE ALARM BOX, MANUAL 907.3
FIRE BARRIERS 706
FIRE COMMAND STATION 403.7, 403.8, 91 1
FIRE DAMPERS 716.2-716.5
FIRE DEPARTMENT ACCESS 402.16
FSRE DETECTION SYSTEM, AUTOMATIC
Airport traffic control towers 412.1 .4
Airport traffic control towers accessibility. . . . 412.1 .6
High-rise buildings 403.5
Institutional occupancy 407.2.1, 407.2.3, 407.6
Special amusement buildings 41 1 .3
^T Appendix D
(see OPENING PROTECTIVES) 714, 1020.1.1
ESCAPE 3404
FIRE EXTINGUfSHERS, PORTABLE 906
FIRE EXTINGUISHING SYSTEMS,
NON=WATER BASED. 904^
FIRE PARTITION 708, 716.5.4
FIRE PROTECTION
Alarm, audible 907.9.2
Alarm, emergency systems 908
Alarms, visible 907.9.1
Explosion control 41 4.5.1 , 91 1
Fire extinguishers, portable 906
Glazing, rated 715.2
Smoke and heat vents 910
Smoke control systems 909
Sprinkler systems 903 ^^
FIRE PROTECTION SYSTEMS 901 .2 iB
FIRE RESISTANCE ^^
Calculated 721
Conditions of restraint 703.2.3
Ducts and air transfer openings 716
Joint systems 713
Prescriptive 720
Ratings Chapter 6, 703, 704.5, 706
Tests 703
Thermal and, sound insulating materials 719.1
FIRE RESISTANCE, CALCULATED 721
Clay brick and tile masonry 721.4
Concrete assemblies 721 .2
Concrete masonry 721 .3
Steel assemblies 721 .5
Wood assemblies 721 .6
FIRE-RETARDANT-TREATED WOOD 2303.2
Awnings. 3105.3
Balconies 1406.3
Canopies 3105.3
Concealed spaces 717.5
Fastening 2304.9.5
Fire wall vertical continuity 705.6
Partitions 603.1
Platforms 41 0.4
Roof construction Table 601, 705.6, 1505
Shakes and shingles 1505.6
Veneer 1405.4
FIRE SEPARATION DISTANCE .- Table 602, 702
Exterior walls , 1406.2.1.1
FIRE SHUTTER (see OPENING
PROTECTIVES) 715.4, 715.4.8, 715.4.9,
Table 715.5
FIRE WALLS 705
Combustible framing 705.7
Exterior intersecting walls 705.5.1
Fire-resistance rating 705.4
Materials 705.3
Openings, protected 705.8
Structural stability 705.2
FIRE WINDOWS (see OPENING PROTECTIVES)
FIREBLOCKING . . .' 717.2
Chimneys 717.2.5, 2113.20
Fireplaces 2111.12
Wood construction 717.2.1, 717.2.7, 1406.2.4
Wood stairs 717.2.4
794
2008 CITY OF LOS ANGELES BUILDING CODE
INDEX
FIREPLACES, FACTORY-BUILT 2111.14.1
FIREPLACES, MASONRY 2102.1
Combustibles 2111.11
General provisions 21 1 1
Hearth extension 21 1 1 .9, 21 1 1 .10
Steel units 2111.5.1
FIREWORKS 307.3
FSXED GUIDEWAY TRANSIST
SYSTEMS 303.2, 433
Fire alarm and communication systems . . . 907.2.26
? B&SLT'IN SEATING, TABLES,
OUNTERS 1122B
iESPREAD 802, Table 803.5
FLAiViMABLE AND
COMBUSTIBLE LIQUIDS 415.6.2
FLAMMABLE FINISHES . .416
Fire protection 41 6.4
FLAMMABLE SOLIDS 307.5, 415.1
FLASHING 1503.2, 1507.3.9, 1507.5.6,
1507.7.6, 1507.8.7, 1507.9.8, 1510.6
Roof 1503.2
Wall, veneer 1405.3, 1405.11.7
FLOOD=RESISTANT CONSTRUCTION
Elevation certificate 109.3.3
Existing 3403.1 , 3407.2, 3410.2.4.1
Flood loads . . 1602.1, 1603.1, 1612, 3001.2, 3102.7
Flood resistance 1403.5, 1403.6
Flood resistant construction Appendix G
Grading and fill 1803.4,1807.1.2.1
Interior finishes 801 .1 .3
Site plan .106.2
Ventilation, under floor 1203.3.2
JOR/CEILING (see FLOOR CONSTRUCTION)
CONSTRUCTION (see FLOOR
CONSTRUCTION, WOOD)
Draft stopping 717.3
Fire resistance 711
Live loads 1 607.3, 1 607.4
Materials Chapter 6
Penetration of fire-resistant assemblies . . 71 1 .5, 712
FLOOR CONSTRUCTION, WOOD
Beams and girders 2304.1 1 .2.4, 2308.7
Bridging/blocking 2308.8.5, 2308.10.6
Diaphragms .2305.2
Fastening schedule 2304.9.1
Framing 602.4.2, 2304.4
Joists 2308.8
Sheathing 2304.7
FLOOR COVERING 804.1 , 804.2
FLOOR FINISH, INTERIOR 804
FLOOR LEVEL AT DOORS 1008.1.4
FLOOR LOADS
Construction documents 1603.1 .1
Live 1607.3, 1607.4
Posting 1603.3
FLOORS AND LEVELS 1120B
FLOOR OPENING PROTECTION
(see VERTICAL OPENING PROTECTION)
FOAM PLASTICS 402.15.5
Attics 719.3.1, 2603.4.1.6
Cold storage 2603.4.1 .2
Concealed 603
Crawl space 2603.4.1 .6
Density mall signs 402.15.5.1
Doors 2603.4.1.7
Exterior walls of multistory buildings 2603.5
Interior finish 801 .2.2, 2603.9, 2604
Label/identification 2603.2
Roofing 2603.4.1 .5
Siding backer board 2603.4.1.10
Stages and platform scenery 410.3.6
Surface burning characteristics ' 2603.3
Thermal barrier requirements 2303.4, 2603.5.2
Thickness 402.15.5.2
Trim 806.3,2604
Walk-in coolers 2603.4.1 .3
FOLDING AND TELESCOPIC SEATING .... 1025.1.1
Accessibility 1104B.3, 1104B.4
Egress 1025. 1. 1
Footboards 1025. 1. 1
Occupant load 1004. 7
FOOD COURT 402.2
Occupant load 402.4.1.4
FOOTBOARDS 402.4.1.4, 1025.1.1
FOOTINGS AND FOUNDATIONS 1805
FORMWORK, CONCRETE 1906
FOUNDATION
Basement wall loads 1610
Footing design 1801.2, 1805.4.1
Pier 1808, 1812
Pile (see PILE FOUNDATIONS) 1808, 1809,
1810,1811
Required for wood buildings 2308.6
Rodentproofing Appendix F
Soils investigation (see SOILS AND
FOUNDATIONS) 1802.2, 1802.4
Special inspections 1704.4, 1704.8, 1704.9
Waterproofing and dampproofing 1807
FOYERS
Assembly occupancy 1025.4
Covered mall 402.1
2008 CITY OF LOS ANGELES BUILDING CODE
795
INDEX
lES.. 310
PEDESTAL 202, 1 101C. 1
FROST PROTECTION 1805.2.1
E CARE (definition) 310.2
ROOIViS 1015.3
GALLERIES
Means of egress 410.3.2, 1015.6.1, 1025.5
Sprinklers 410.6
GARAGE, AUTOMOBILE PARKING 406.2
Accessible provisions . . Chapter 1 1A, 1 129B, 1 130B
Barriers, vehicle 406.2.4, 1607.7.3
Beneath other occupancies 406.2.7, 509
Construction type 406.3.3, Table 503, Table 601
Enclosed 406.4
Guards 406.2.3
Live load Table 1607.1
Occupancy separation 508.3.3, 509
Occupant load Table 1004.1 .2
Open 406.3
Sprinklers 903.2.9
Underground 405
GARAGE, REPAIR 406.6
Floor surface 406.6.4
Gas-detection system 406.6.6, 908.5
Sprinklers 903.2.8.1
Ventilation 406.6.3
GARAGES, TRUCK AND BUS
Live load 1607.6
Sprinklers 903.2.9.1
GARAGES AND CARPORTS, PRIVATE . 406.1, 508.2
Area limitations 406.1 .2
GATES 1008.2
GENERAL CODE PROVISiONS CA Chapter 1
GIFT SHOPS 407.2.4
GIRDERS
Fire resistance Table 601
Materials Chapter 6
Wood construction 2304.1 1 .2.4, 2308.7
GLASS (see GLAZING)
GLASS BLOCK (see GLASS UNIT MASONRY)
GLAZING
Athletic facilities 2408
Doors. . 704.12.1, 709.5, 715.4.3.2, 1405.12, 1714.5
Fire doors 715.4.4.1,715.4.6
Fire resistant walls 715.4.3.2
Fire windows 714.5, 715.5
Handrails and guards 1013.1, 2406.3, 2407
Identification 2403.1, 2406.2
Impact loads 2406.1 , 2408.2.1
Impact resistance 1609.1 .2
Jalousies 2403.5
Label/identification 715.4.5.1, 715.4.6.3, 715.5.8
Loads 2404
Louvered windows 2403.5
Nonwired 71 5.4.4
Opening protectives 715.2
Railings 2407
Replacement 2401 .2, 3405
Safety 715.4.6.4, 2406
Skylights 2405
Sloped 2404.2, 2405
Swimming pools 2406.3
Supports 2403.2
Testing 1714.5, 2406.1.1, 2408.2.1
Veneer 1405.11
Vertical 2404.1
Wired 715.5.3
GLASS UNIT MASONRY 2102.1,2110
Atrium enclosure 404.5
Design method 2101 .2.5
Fire resistance 2110.1.1
Hazardous locations 2406.1.3, 2406.3.1
Material requirements 2103.6
Placing. 2104.1.2.4
GRAB BAR 1127A.2, 1115B.7
Definition 202, 1107A.7-G
GRADE (adjacent ground elevation) (definition) . 202
GRADE (PLANE) 502
GRADE, LUMBER (see LUMBER) 2302.1
GRAIN ELEVATORS 415.6.1.5
GRANDSTANDS 303.1, 1025.1.1
Accessibility 1 104B.4
Exit signs 1011
Live load Table 1607.1
Occupant load 1004.7
GREENHOUSES
Area Table 503
Classification of 312.1
Deflections Table 1604.3
Membranes 3102.1
Plastic 2606.11
Roof live load 1607.11.2.1
Sloped glazing - 2405
GRIDIRON
Means of egress 410.3.2, 1015.6.1
Sprinklers 410.6
GRDNDING ROOMS 415.6.1.2
796
2008 CSTY OF LOS ANGELES BUILDING CODE
INDEX
GROSS LEASABLE AREA (see COVERED MALL
BUILDINGS) 402
GROUND AND FLOOR SURFACES 1124B
GROUND FLOOR (definition) 202, 1107A.7-G
GROUND SNbW LOADS 1608.2
GROUT 712.3.1,712.4.1,2103.12
GUARD (or GUARDRAIL) definition .... 202, 1002. 1
GUARDS . . 1013
Bleachers. 1025.1.1
Equipment platform 505.5.3
Folding and telescopic seating 1025.1.1
Glazing 1303.1, 2406.3, 2407
Grandstands 1025.1.1
Loads 1607.7
Mechanical equipment 1013.5
Opening limitations 1013.3
Parking garage 406.2.4
Ramps 1010.10
Residential 1013.2
Screen porches 1013.4
GUTTERS .1503.4.1
GYMNASIUMS
Live load Table 1607.1
Occupant load 1004.1
Occupancy separation 508.3.1
GYPSUM Chapter 25
Aggregate, exposed 2513
Board Chapter 2
Concrete, reinforced. 1914
Construction 2508
Diaphragms 2508.5
Draft stopping 717.3.1
Exterior soffit Table 2506.2
Fastening 2306.4.5.1.4, Table 2306.4.5, 2508.1
Fire resistance 721.2.1.4, 721.6.2
Fire-resistant joint treatment 2508.4
Inspection 2503
Lath 2507,2510
Lathing and furring for cement plaster. ... 718, 2510
Lathing and plastering 2507
Materials 2506
Plaster, interior 251 1
Plaster, exterior 2512
Shear wall construction . . . 2306.4.5, 2308.9.3, 2505
Sheathing 2304.6.1
Showers and water closets 2509
Stucco 2510
Veneer base 2507.2
Veneer plaster 2507.2
Vertical and horizontal assemblies 2504
Wallboard Table 2506.2
Water-resistant backing board 2506.2, 2509.2
H
HALLWAYS. 1133B.3
HANDRAILS 1009.10, 1012, Chapter 11 A,
Chapter 1 1B, 1133B.4.1, 1607.7
Alternating tread devices 1009.9
Assembly aisles .1025.13
Bleachers 1025.1.1
Definition 202, 1002.1, 1102B
Ends returned 1 133B.4.2.3
Folding and telescopic seating 1025.1.1
Glazing 2407
Grandstands 1025.1.1
Grasp ability 1012.3
Guards 1013.2
Handgrips 1133B.4
Loads 1607.7
Projection 1012.5
Ramps 1 01 0.8
Stairs. 1009.10
HARDBOARD 1404.3.2, 2302.1, 2303.1.6
HARDWOOD
Fastening 2304.9
Quality 2303.1.8.1, 2303.3
Veneer 1404.3.2
HAZARDOUS MATERIALS 414
Control areas 414.2
Explosion control 414.5.1 , Table 414.5.1 ,
415.6.1.4,415.8.5.4
Special provisions 415.4, 415.5
Sprinklers Table 414.2.5(1), Table 414.2.5(2),
415.5.2,415.6.2.4
Ventilation 414.3, 415.6.2.8, 415.8.2.6,
415.8.4.3 415.8.5.7, 415.8.6.3
Weather protection 414.6.1
HAZARDS. 1 133B.8
HEAD JOINT, MASONRY 2102.1
Bonding pattern 2109.6.5
Thickness 2104.1.2.1
HEADER, MASONRY (BONDER) 2102.1
HEADROOM 1003.1, 1008.1.1, 1009.2, 1010.5.2
HEALTH CARE
(see INSTITUTIONAL 1-1 and INSTITUTIONAL 1-2)
Clinics 304
Hospitals 308
HEALTH CARE PROVIDER (definition) . . 202, 1 102B
HEALTH-HAZARD MATERIALS 307.2
HEAT DETECTORS 907.2.24.4
2008 CITY OF LOS ANGELES BUILDING CODE
797
I^9DEX
,910
HEATDNG (see SVIECHANICAL)
Aircraft hangars 412.2.4
Parking garages 406.2.8
Repair garages 406.6.5
HEIGHT, BUILDING Chapter 5
Limitations 503
IVIixed construction types 509.1
IVIodifications 504
Roof structures 504.3
HEIGHT, STORY 502.1
HIGH-HAZARD OCCUPANCY (GROUP H) . . 307, 415
Accessibility 1 108B
Classification 307
Combustible liquids 415.6.2
Control areas 414.2
Conveyors 415.6.1,3
Corrosives Table 414.2.5(1), 414.3
Cryogenic fluids . . . Table 414.5.1, Table 415.8.2.1.1
Dispensing, use and handling 414.7.2
Dry cleaning (see DRY CLEANING PLANTS)
Emergency alarm systems 908.1, 908.2
Exceptions 307.1
Exempt 307.1
Explosives Table 414.5.1, Table 415.3.1
Factory industrial F-1 moderate
hazard occupancy 306
Factory industrial F-2 low
hazard occupancy 306.3
Fire alarm, manual 901 .6.3
Flammable liquids 415.6.2
Flammable solids 307.2, Table 307.7(1)
Grinding rooms 415.6.1.2
Group H-1 307.3
Group H-2 307.4
Group H-3 307.5, 415.7
Group H-4 307.6, 415.7
Group H-5 307.7, 415.8
Health-hazard materials 415.2, Table 414.2.5(1),
415.4, 415.8.6.2, Table 415.8.2.1.1
Height 415.4, 415.5
interior finishes 41 6.2.1 , 41 6.3.1
Irritants Table 414.2.5(1), Table 415.8.2.1.1
Liquid, highly toxic and toxic 415.7.3, 908.3
Location on property 415.3
Multiple hazards 307.8
Organic peroxides Table 415.3.2
Oxidizers, liquid and solid 415.5.1
Pyrophoric materials 415.4.1, 415.5.1
Sensitizers .Table 415.8.2.1.1
Separation from other occupancies . . Table 415.3.1,
415.6.3.4.1
Solids, highly toxic and toxic 415.7.3,
Table 415.8.2.1.1, 908.3
Special provisions H-2, H-3 415.4, 415.5
Sprinklers . . . 415.5.2, 415.6.2.4, 415.8.6.3, 415.8.9,
415.8.10.1, 415.8.11, 704.8.1, 903.2.4
Standby power systems 2702.2.10-2702.2.13
Storage and dispensing 414.1, 414.5, 414.6
Tank protection 415.6.2.2, 415.6.2.3
Unstable materials Table 414.2.5(1),
Table 414.5.1, Table 415.3.2, 415.5.1, 415.8
Water-reactive materials Table 415.3.2, 415.5,
415.5.1,415.5.2, 415.8, Table 415.8.2.1.1
HIGH PILED COMBUSTIBLE
STORAGE 413, 907.2.14, 910.2.2
HIGH-RISE BUILDINGS 403
Applicability to new high-rise buildings 403. 1
Automatic fire detection 403.5, 907.2.12
Automatic sprinkler system 403.2
Elevators 403.9, 1124A, 1116B, 3001.1
Existing high-rise buildings 3412
Fire command station 403.8
Fire department communication 403.7
Smokeproof enclosure 1020.1 .8
Sprinklers 403.3, 903.3.1 .1
Stairway door operation 403.12
Standby power, light and
emergency systems 403.10, 2702.2.15
Voice alarm 403.6, 907.2.12
Zones 907.8.2
HISTORICAL BUILDINGS 202 Part 8
Accessibility 11 19B, 1 1358
HOLDING FACILITY (definition) 308.4.6
HORIZONTAL EXIT ..... 1022
Doors 1022.3
Fire resistance 1022.2
Institutional 1-3 occupancy 408.2, 1022.1
Institutional 1-2 occupancy : 1022.1
HORIZONTAL FIRE SEPARATION 704
Combustible projections 704.2
HOSE CONNECTIONS
(see STANDPIPES, REQUIRED)
HOSPITAL
Application 1224.2
Definitions 1224.3
General construction 1224.4
Reserved 1224.5-1224. 13
Scope 1224. 1
HOSPITAL - BASIC SERVICES
Anesthesia service space 1224. 16
Clinical laboratory service space 1224. 1 7
Dietetic service space. 1224.20
Nursing service space 1224. 14
798
2008 CITY OF LOS ANGELES BUILDING CODE
INDEX
Pharmaceutical service space 1224. 19
Radiological/imaging service space 1224. 18
Surgical service space 1224. 15
HOSPITAL - SUPPORT SERVICES
Administration space 1224.21
Central sterile supply 1224.22
Employee clressing rooms and lodgers 1224.25
Housekeeping rooms 1224.26
Laundry 1224.27
Morgue and autopsy facilities 1224.24
Storage 1224.23
HOSPITAL - SUPPLEMENTAL SERVICES
Emergency service 1224.33
Intensive care units 1224.29
Intermediate-care service space 1224.38
Nuclear medicine 1224.34
Obstetrical facilities (perinatal unit) 1224.32
Outpatient service space 1224.39
Pediatric and adolescent unit 1224.30
Psychiatric nursing unit 1224.31
Rehabilitation therapy department 1224.35
Renal dialysis service space 1224.36
Respiratory therapy service space 1224.37
Sl<illed nursing service space 1224.40
Social service space 1224.41
Supplemental surgery services 1224.28
HOTEL (or MOTEL) (definition) ....202
HOUSING UNIT (definition) 308.4.6
HURRICANE SHUTTERS 1609.1.2
HURRICANE PRONE REGIONS (see WIND
1609.2
IDENTIFICATION, REQUIREMENTS FOR
Glazing 2403.1, 2406.4
Inspection certificate 1702.1
Label, information required on 1703.5.3
Pier and pile materials 1808.2.20
Preservative-treated wood 2303.1.8.1
Structural Steel 2203.1
INFANT (definition) 310.2
IMPACT LOAD 1602.1, 1607.8
INCINERATOR ROOMS 1015.3
INDEPENDENT ENTITY (definition) 202
INDUSTRIAL (see FACTORY OCCUPANCY)
INSPECTIONS 109
Approval required 109.6, 1704.1
Atrium buildings 909.3
Concrete slab 109.3.2
EIFS ..1704.12
Energy efficiency 109.3.7
Fabricators 1 704.2
Fees 108
Final 109.3.10
Fire-resistant materials 1707.1 1
Fire-resistant penetrations 109.3.6
Footing or foundation 109.3.1
Frame 109.3.4
General 109.1
Lath or gypsum board 109.3.5, 2503
Liability 104.8
Pier 1704.9
Pile 1704.8, 1808.2
Preliminary 109.2
Reinforcing steel 1704.4
Required ; 109.3
Right of entry 104.6
Seismic 1 707
Special 109.3.9, 1704.13
Sprinklers 904.4
Steel, structural 1704.3, 1704.11.3.2
Signs 1 117B.5. 1 1tem 4
Steel framing, cold-formed 1704.3
Third party 109.4
Welding 1704.3.1 , 2204.1
Wood, structural 1704.6
INSTITUTIONAL 1-1 308.2
Emergency egress 1026
Fire alarm 907.2.6.1
Notification appliances for
hearing impaired 907. 1.5
Visible alarms 907.9.1 .3
Sprinklers 903.2.5, 903.3.2
INSTITUTIONAL 1-2 308.3
Combustible decorations 806.1
Corridor width 1017.2
Exterior exit stair 1023.2
Fire alarm and detection 907.2.6
Special requirements 407
Sprinklers 903.2.5, 903.3.2
Suites 1014.2
Openings in smoke barriers 909.5.2, 709.5
INSTITUTIONAL 1-2.1 AMBULATORY CARE
FACILITY. 308.3.2
INSTITUTIONAL 1-3 308.4
Exit sign exemption 1011.1
Openings in smoke barriers 909.5.2
Special requirements 408
INSTITUTIONAL 1-4 308.5
Corridor rating 1017.1
Fire alarm 907.2.6
Sprinklers 903.2.5
2008 CITY OF LOS ANGELES BUILDING CODE
799
INDEX
ISTITUTIONAL OCCUPANCY (GROUP i) 308
Accessibility 1 109B
Adult care 308.5.1
Child care 308.3.1, 308.5.2
Group 1-1 308.2
Group 1-2 308.3, 407
Group 1-3 308.4, 408
Group 1-4 day care facilities 308.5
Sprinkler system, automatic 903.2.5
.,EXSSTING 3413
INS
Concealed 719.2
Duct insulation 719.1
Exposed 71 9.3
Fiberboard 2303.1 .5.2, 2303.1 .5.3
Foam plastic (see FOAiVI PLASTICS) 7 19.1
Roof 719.5
Thermal 719
INTERIOR ENVIRONMENT
Lighting 1205
Rodent proofing Appendix F
Sound transmission 1207
Space dimensions 1 208
Temperature control 1204
Ventilation 1203.4
Yards or courts. 1206.2, 1206.3
FINISHES Chapter 8
Acoustical ceiling systems 803.9
Application 803.4, 804.4
Atriums 404.7
Decorative materials 801 .1 .2, 806
Floor finish 804
Foam plastic insulation 2603.3, 2603.4
Foam plastic trim 806.3
Light-transmitting plastics 2606
Signs 402.15,2611
Wall and ceiling finishes 803
rERMATiONAL SYMBOL OF ACCESSIBILITY
202, 1107A.9-I, 1102B
CODE 104.1
Concrete construction joints 1 906.4
Gypsum board 2306.4.5.1.1, 2508.4
Lumber sheathing 2308.10.8.1
Masonry reinforcement 2103.11.2, 2109.7.2.3
Shotcrete 1913.7
Structural plain concrete 1909.3
Waterproofing 1807.3.3
E-RESISTANT SYSTEMS 713
KICK PLATE (definition) 202, 1 107 A. 1 1-K, 1 102B
KITCHENS 1133A, 11178.3
KIOSKS 402.10
LABORATORIES
Classification of 304.1 , 508.2
Existing Group L occupancies 3414
Fire alarm system 907.2.28
Hazardous materials 414
Incidental use Table 508.2
State Fire Marshal requirements 443
LAMINATED TIMBER, STRUCTURAL
GLUED 602.4, 2301 .3
LANDINGS
Doors . .1008.1.5
Ramp 1010.6
Stair .1009.4, 3403.4
LARGE-FAMILY DAY CARE HOMES
(definition) 310.2, 445
LATH, METAL OR WIRE Table 2507.2
LAUNDRIES 304.1. 306.2, Table 508.2
LAUNDRY CHUTE 707.13, 903.2.10.2
LEGAL (see LIABILITY)
Federal and state authority 102.2
Liability 104.8
Notice of violation 1 13.2, 1 15.3
Registered design professional 106.1, 106.3.4
Right of entry 104.6
Unsafe buildings or systems 115
Violation penalties 1 13.4
LEVEL ACCESSIBLE AREA
(definition) 202, 11010.1
LEVEL AREA (definition) . . . 202. 1 107 A. 12-L, 1 102B
LIBRARIES
Classification, other than school 303.1
Classification, school 305.1, 508.3.1
Live load Table 1607.1
LIFT, SPECIAL ACCESS 202, 1107A.12-L,
1102B, 1116B.2
LIGHT, REQUIRED 1205.1
LIGHTING, EMERGENCY (see EMERGENCY
LIGHTING)
LIGHTS, PLASTIC CEILING DIFFUSERS 2606.7
LINTEL .
Adobe 2109.8.4.7
Fire resistance 714.6
Masonry 2104.1.5
Masonry, wood support 2304.12
LIQUEFIED PETROLEUM GAS 415.6.3
800
2008 CITY OF LOS ANGELES BUILDING CODE
INDEX
LISTED (definition) 202
LISTING AGENCY (definition) 202
LIVE LOADS 1602.1, 1607
Construction documents 1603.1.1
Posting of 1 603.3
LOAD COMBINATIONS 1605
Strength design or load and
resistance factor design 1 605.2
Allowable stress design 1605.3
Special seismic load combinations 1605.4
LOADS .1602.1
Combinations .1605
Dead 1602.1, 1606
Flood 1603.1.6, 1612
Impact 1602.1, 1607.8
Live 1603.1.1, 1603.3, 1607
Pile foundation 1808, 181 1
Rain 1611
Seismic 1603.1.5, 1613
Snow 1603.1.3, 1608
Soil lateral 1610
Structural Chapter 16
Wind 1603.1.4, 1609
LOBBIES
Assembly occupancy 1025.4
Elevator 707.14.1, 1007.2.1, 1007.4
LOBBY (definition) 202
LOCAL ENFORCEI^ENT AGENCY 108.3. 1
LOCKS AND LATCHES 1008.1.8.3
Delayed egress locks 1008.1 .8.6
Institutional 1-3 occupancy 408.4
LODGING HOUSE (definition) 202
LUMBER
General provisions Chapter 23
Quality standards 2303
M
MAINTENANCE
Accessibility 1 101 B.3
MALL (see COVERED MALL BUILDINGS)
MANUAL FIRE ALARM BOX 907.3
MANUFACTURED HOMES
Flood resistant G501
l\/IARKED CROSSING (definition) 202,
1107A.13-M, 1102B
MARQUEES 3106, H113
Live load Table 1607.1
MASONRY
Adhered veneer 1405.9
Adobe 2109.8
Anchorage 1604.8.2, 2106.2, 2109.7
Anchored veneer. 1405.5
Ashlars stone 2102.1
Autoclaved aerated concrete (AAC) . . 2102.1, 2103.3
Bond 2109.6
Cavity wall 2109.4.2
Chimneys 2113
Cold weather construction 2104.3
Compressive stress requirements 2109.3
Construction 2104, 2109.8.4
Construction documents 2101.3
Corbelled 2104.2
Dampproofing 1 807
Design, methods 2101.2, 2107-2109
Fire resistance, calculated 721 .3.2, 721 .3.4
Fireplaces 2101.3.1,2111
Floor anchorage 1604.8.2, 2109.7.3
Foundation walls 1805.5
Foundations, adobe 2109.8.4.3
Glass unit 2101.2.5, 2103.5, 2110
Grouted 2102.1
Headers (see BONDING, MASONRY) .... 2109.6.2
Hollow units 2104.1.2.2
Hot weather construction 2104.4
Inspection, special 1704.5
Joint reinforcement 2103.11.2,
2108.9.2.2,2109.7.2.3
Lateral stability 2109.2
Lateral support. .2106.2, 2109.4
Materials 2103
Parapet walls .2109.5.5
Penetrations .712, 712.3.1
Quality assurance 1708.1, 2105
Rodent proofing Appendix F
Roof anchorage 1604.8.1, 2106.2, 2109.7.3
Rubble stone 2102
Running bond 2109.6.5
Seismic provisions 2106
Serviceability 1604.3.4
Shear walls 2106.1.1
Solid 2104.1.2.3, 2109.6.2.1
Stack bond 2109.6.5.2
Stone 2103.3, 2109.8
Support (see also MASONRY,
Lateral support) 2304.12
Surface bonding .2103.8
Test procedures 1708.1.1, 2105.2.2.2
Thickness 2109.5
Tie, wall 2104.1.3,2109.6.3
Veneer 2101 .2.6, 2308.11.2
Wall, composite 2102.1
Wall, hollow 2102.1
2008 CITY OF LOS ANGELES BUILDING CODE
801
INDEX
Wall, intersecting 2109.7.2
Wall anchorage 1604.8.2, 2109.7
Waterproofing 1807
Weep holes 2104.1.8
Wetting brick 2104.5
Wythe defined 2102.1
Alternates 104.1 1
Aluminum Chapter 20
Concrete Chapter 1 9
Glass and glazing Chapter 24
Gypsum Chapter 25
Masonry Chapter 21
Noncombustible 703.4
Plastic Chapter 26
Steel Chapter 22
Testing (see TESTING) 1715
Wood Chapter 23
EANS OF EGRESS Chapter 10
Accessible 1007, Chapter 11 A, Chapter 11B
Aircraft hangers, residential 412.3.3
Aisles . 1014.4, Chapter 11 A, Chapter 1 1B, 1133B.6
Assembly 1007.1, 1025
Atrium 404.8
Bleachers 1 025.1 .1
Capacity 1005.1
Child care facilities (see DAY CARE FACILITIES)
Ceiling height 1003.2
Corridors 1017, 1133B.3
Covered mall buildings 402.4
Day care facilities 308.5.2, Table 1004.1 .1 ,
Table 1015.1, Table 1019.2
Doors . . . 1008, Chapter 11 A, Chapter 1 1B, 1133B.2
Elevation change 1003.5
Elevators 1003.7
Emergency escape and rescue 1026
Emergency lighting values 3410.6.15
Enclosures under stairways 1009.5.3
Escalators 1003.7
Existing buildings .3409.6, 3410.5, 3410.6.11
Exit (see EXIT) 1018-1023
Exit access 1014-1017
Exit discharge .1024
Exit doors 1018.2
Exit signs 1011
Fire escapes 3404
Floor surface 1003.4
Gates 1008.2
Grandstands 1025.1.1
Guards 1013
Handrails 1012, Chapter 1 1A,
Chapter 1 1B, 1133B.4.1
Hazardous materials 414.6.1.2
Headroom 1003.1, 1008.1.1, 1009.2, 1010.5.2
High Hazard Group H 415.8.4.4
Helistops 412.5.4, 1019.1.2
Horizontal exits 1022
Illumination 1006
Institutional Group 1-2 407.4.2
Institutional Group 1-3 . . 408.2, 408.3, 408.5, 408.6.3
Mezzanines 505.3, 505.4, 1004.6, 1007.1
Minimum width 1005.1
Moving walk 1 003.7
Number 1019.1
Occupant load 1 004.1
Parking 406.3.8
Passageway 1021
Path of egress travel, common 1014.3
Protruding objects 1003.3, 1005.2
Ramps 1010, 1023
Seating at tables 1014.4.3
Seating, fixed 1007.1, 1025
Single exit 1015.1.1, 1019.2
Special amusement 41 1 .2
Stage 410.3.3, 410.5.3, 1015.6
Stairways 1009, 1020.1, 1023,
Chapter 1 1A, Chapter 1 1B, 1 133B.4
Temporary structures 3103.4
Travel distance 1016.1, 1025.7
Turnstile 1008.3, 1110B.1.5, 1133B.2.3.4
Underground buildings 405.5.1, 405.8
Vertical exit enclosures 1020.1
Width 1005.1, Table 1005.1, 1025.6, 1025.8
MECHANICAL (see AIR CONDITIONING, HEATING,
REFRIGERATION, AND VENTILATION)
Air transfer openings . . 704.14, 705.11, 706.10, 716.5
Chimneys (see CHIMNEYS) 21 13
Code Chapter 28
Equipment on roof 1509, 1510.2
Factory-built fireplace 2111.14.1
Fireplaces 21 1 1 .1
Permit required 105.1
Room separation Table 508.2, 508.2.2
Seismic inspection and testing 1707.8, 1707.9,
1708.5
Smoke control systems 909
Systems 1613.2, Chapter 28
MECHANICALLY LAMINATED DECKING . . 2304.8.3
MEMBRANE ROOF COVERINGS 1507.11,
1507.12, 1507.13
MEMBRANE STRUCTURES 2702.2.9, 3102
802
2008 CITY OF LOS ANGELES BUILDING CODE
INDEX
lOpPITALS 308.3
1ENTALLY Retarded persons, profoundly
OR severely (definition) 310.2
iERCASSmLjE OCCUPANCY (GROUP M)
Accessibility ,11 10B
Aisles 1014.4.1, 1014.4.2
Area 505, 506, 507
Classification 309
Height 504
Interior finishes Table 803.5
Live load .Table 1607.1
Sprinkler system, automatic. 903.2.6
Aluminum Chapter 20
Roof coverings 1504.3.2, 1507.5
Steel Chapter 22
Veneer 1 404.5
MEZZAMINES 505
Accessibility 1007.1 , 1 103B. 1
Area limitations 505.2, 505.5.1
Egress 505.3, 505.4, 1004.6, 1007.1
Guards 1013.1
Height .505.1
Stairs 707.2(9), 1009.9, 1020.1
MIRRORS 1008.1, 2406.3.1(7)
MIXED OCCUPANCY (see OCCUPANCY
RE PROTECTION 1403.2, 1503,
2303.2.3,2304.11
TERIES 310.1
MORTAR 2102.1
Ceramic tile 2103.4
Compressive stresses, masonry. . . . Table 2103.7(2)
Damp proofing 1807
Fire resistance 712.3.1, 712.4.1
Glass unitmasonry 2110.6
Material 2103.7
Placing 2104.1.2
Rodent proofing Appendix F
Surface-bonding 2102.1, 2103.8
MOTEL (definition) 202
MOTELS . . , ■. .310.1
MOTION PICTURE AND TELEVISION
PRODUCilON STUDIO SOUND STAGES,
APPROVED PRODUCTION FACILITIES
AND PRODUCTION LOCATIONS. 903.2. 14
Existing sound stages and approved
production facilities 903.2. 14. 1
New sound stages 903.2. 14.2
MOTION PICTURE PROJECTION ROOMS 409
Constructibn 409.2
Exhaust air 409.3.2
Lighting control 409.4
Projection room : . . . 409.3
Supply air 409.3.1 .1
Ventilation 409.3
MOTOR FUEL-DISPENSING SYSTEM 406.5
Accessibility Chapter 1 1C
MOTOR VEHICLE FACILITIES 304, 31 1 , 406
MOVING, BUILDINGS D103.3
MOVING WALKS 3005.2
Means of egress 1003.7
MULTIPLE-ACCOMMODATION TOILET
FACILITY 1115B.3.1
Definition 202
MULTISTORY DWELLING UNIT
. (definition) 202, 1 107 A. 13-M
N
NAILING 2302.1 , 2303.6, 2304.9
NEWLY CONSTRUCTED
(definition) 202, 1 107 A. 14-N
NFPA (definition) 202
NONAMBULATORY PERSONS (definition). . . . 310.2
NONCOMBUSTIBLE BUILDING MATERIAL . . . 703.4
NOSING (or NOSE) (definition). . . . 202, 1107A.14-N,
11028
NURSING HOMES 308.3
o
OCCUPANCY
Accessory 508.3.1
Atriums 404.2
Certificates (see CERTIFICATE OF OCCUPANCY)
Change 3405, 3409.4
Floor loads Table 1607.1
Special Chapter 4
OCCUPANCY CATEGORY 1602.1, 1604.5
Multiple occupancies 508, 1604.5.1
OCCUPANCY CLASSIFICATION
Covered mall buildings 402
HPM ..415.8
Mixed 508.3
Mixed occupancy values 3410.6.16
Special Chapter 4
OCCUPANCY SEPARATION
Covered mall building 402.7.3.1
Incidental use areas 508.2, 706.3.4
Mixed .508
Parking garages. . Table 508.3.3(c), 406.1.4, 406.2.7
Repair garages 406.6.2
Required fire resistance Table 508.3.3
Residential aircraft hangars 412.3.2
2008 CITY OF llOS ANGELES BUILDING CODE
803
INDEX
JCUPANT LOAD
Certificate of occupancy 110
Covered mall building 402.4.1
Determination of 1004.1
Increased 1004.2
Outdoors 1 004.8
Seating, fixed 1 004.7
Signs 1004.3
OCCUPmBLE SPACE (defmstiion). 202
OFFDCE BUDLDINGS
Classification 304
Live loads Table 1607.1
OPEN RISER (defmlfmin) . . . 202, 1 107A. 15-0, 1 102B
OPEIMING PROTECTION, EXTERIOR WALLS . . 704.1
OPENING PROTECTION, FLOORS (see VERTICAL
OPENDNG PROTECTDON)
OPENDWG PROTECTIVES 715
Automatic closing devices 715.2.7, 909.5.2
Fire door and shutter assemblies . . 715.7.3.8, 715.4
Fire windows 715.5
Glazing 715.5
Glass unit masonry (see GLASS
UNIT MASONRY) 2110.1.1
Interior walls 708.6
Required fire resistance 715.5
Self-closing 715.4.7
202, 1 102B
418
IGANDC PEROXiDES; 307.4, 307.5
.302.1,440,907.2.25
OXIDIZERS, LDQUID AND SOLID 307.2
P
PANIC HARDWARE 1008.1 .9
PARAPET, EXTERIOR WALL 704.1 1 , 2109.5.5
Construction 704.11.1
Fire wall 705.6
Height. 704.11.1
IG, ACCESSIBLE 1108A, 1129B, 11 308
(see GARAGE,
AUTOMOBILE PARKING) 406.2
Barriers, vehicle 406.2.4, 1602.1, 1607.7.3
Classification 406.2.1
Guards 406.2.3, 2407.1 .3
Height, clear . . . 406.2.2, Chapter 11 A, Chapter 118
Live loads Table 1607.1
Mixed separation 406.2.7
ARKIWG GARAGES, ENCLOSED 406.4
Heights and areas 406.4.1
Ventilation 406.4.2
GARAGES, OPEN 406.3
Area and height 406.3.5
Construction type 406.3.3
Stairs and exits 406.3.8
Standpipes 406.3.9
^RTICLEBOARD 2302.1
Draftstopping 717.3.1 iBl
Fastening 2304.9 ^^
Moisture protection 1403.2, 1405.2
Quality 2303.1.7
Shear walls . 2306.4.3
Veneer 1405.4
Wall bracing 2308.9.3
Materials 602.4.6, 603.1
Occupancy, specific 708.1
Structural 1607.5, 1607.13
IRT1T80NS, FIRE 708
Construction, general 703
Continuity 508.2.2.1 , 708.4
Exterior walls Table 602, 704.5, 708.5
Fire-resistance rating of walls 603.1(8), 708.3
Joint treatment gypsum 2508.4
Joints 713 ^^^
Opening protection. 715 jBl
Rated glazing 71 5.5 ^^
%SSAGE DOOR (definition) 202, 1 107A. 16-P,
1 1028
%SSENGER DROP-OFF AND
LOADING ZONES 1 1318
%SSENGER ELEVATOR 202,
11028, 3001.3 (definition)
^SSENGER STATIONS 303
^SSAGEWAY, EXIT (see EXIT) ' . . 1021 .1
%SSAGEWAYS, Accessible. 11158.5, 11338.2
ISSIVE SOLAR ENERGY COLLECTOR
Definition 202
F TRAVEL : .1 1338
Definition : 202, 1 1028
TiO COVERS 2606.10
Definition 202, 1 107A. 16-P, 1 1028
Protection at construction site 3306
Walkways and tunnels 3104
PEDESTRIAN GRADE
SEPARATION (definition) 202, 11028
Overpasses and underpasses 1 1288
PEDESTRIAN RAMP
(definition) 202, 1 107 A. 16-P, 1 1028
PEDESTRIAN WAY
202, 1 107A. 16-P, 11028
804
2008 CDTY OF LOS ANGELES BUILDING CODE
INDEX
ENALTIES 1 13.4
ENETRATION-FIRESTOP SYSTEM
Fire-rated walls 712.3.2
Fire-rated horizontal assemblies 712.4.1.2
'ENETRATIpNS 712
Fire partitions 708.7
Fire-resistant assemblies 712.3
Nonfire-resistant assemblies 712.4.2
ERLSTE Table 720.1(1), Table 2507.2
PERMANENT (definition) 202
'ERMIT (definition) .202
ERMITS 105
Application for 104.2, 105.1, 105.3
Drawings and specifications 106.1 .1
Expiration 1 05.5
Fees 1 08
Liability for issuing .104.8
Placement of permit 1 05.7
Plan review. . .104.2, 106.3
Suspension or revocation 1 05.6
Time limitations 105.3.2, 105.5
ERSONS WITH DISABILITIES
(definition) 202, 1 107 A. 16-P
lER FOUNDATIONS 1808, 1812
Special inspections 1704.9, 1707.5
FOUNDATIONS 1808
Base piles, enlarged concrete 1808.1, 1810.2
Caisson 1808.1, 1810.7
Composite 1811
Concrete, cast-in-place . 1810
Concrete, precast 1 809.2
Concrete-filled steel pipe and tube . . 1808.1, 1810.6
Drilled or augered uncased .1810.3
Driven 1809, 1810.4
Micro piles 1808.1, 1810.8
Pile load, allowable 1808.2.8
Seismic design 1808.2.23,
1809.2.2.2.1-1809.2.3.2.2
Special inspections .1704.8
Steel, structural 1809.3
Steel-cased 1808.1, 1810.5
Timber 1808.1, 1809.1
PIPES
Embedded in concrete 1906.3
Embedded in fire protection 714.3
Insulation covering 719.7
Penetration protection 71 1, 1020.1.2
Under platform 41 0.4
PLAIN CONCRETE (see CONCRETE) 1909
PLAN REVIEW 106.3
PLASTER
Fire-resistance requirements 718
Gypsum 718.1, 718.2
Inspection 109.3.5
Portland cement 718.5, Table 2507.2,
Table 251 1.1.1
PLASTIC Chapter 26
Approval for use 2606.2
Finish and trim, interior 2604
Light-transmitting panels 2607
Roof panels 2609
Signs .402.15, 2611, D102.2.10, H107.1.1
Thermal barrier 2603.4
Veneer 1404.8, 2605, D102.2.11
Walls, exterior 2603.4.1.4, 2603.5
PLASTIC, FOAM
Insulation (see FOAM PLASTICS) 2603
Interior finish .2604
Malls 402.15.5
PLASTIC, LIGHT-TRANSMITTING
Awnings and patio covers 2606.10
Bathroom accessories 2606.9
Exterior wall panels 2607
Glazing 2608
Greenhouses 2606.1 1
Light-diffusing systems 2606.7
Roof panels 2609
Signs, interior 261 1
Skylight 2610
Solar collectors 2606.12
Structural requirements 2606.5
Unprotected openings 2608.1, 2608.2
Veneer, exterior 603.1(12), 603.1(14), 2605
Wall panels 2607
PLATFORM (see STAGES AND PLATFORMS). .410
Construction . .410.4
Definition .202, 410.2
Temporary 410.4.1
PLATFORM LIFTS,
WHEELCHAIR 1007.2, 1007.5,
1009.1, 1124A, 1116B.2
PLENUM
Underground buildings 907.2.18.1
PLUMBING
Facilities, minimum 2902
Fixtures Table 2902.1
Residential aircraft hangars 412.3.5
PLYWOOD 2302.1
Bracing 2308.9.3
Decorative 2303.3
Design requirements 2301
Diaphragm 2305.2, 2306.3
2008 CBTY OF LOS ANGELES BUILDING CODE
805
ONDEX
Fastening 2304.9
Fire-retardant treated 2303.2
Lateral loads, steel studs . . . . 2211 .3, 231 1 .7.4
Preservative-treated 2303.1.8.1, 2304.11
Quality 2303
Roof sheathing 2304.7, 2308.10.8
Seismic shear panels . . 2305.1.5, 2305.3, 2308.12.4
Standards 2306.1
Sub floors 804.4.1
Veneer 1405.4
? ROOM (defmmoin) 202, 1 107 A. 16-P
■ASSISTED DOOR (defmirmn) 202
E FDRE RESISTANCE 720
E-TREATED WOOD 2302.1
Fastenings 2304.9.5
Quality 2303.1.8
Required 1403.5, 2304.1 1
Shakes, roof covering 1507.9.5, 1507.9.7
ENTRY LEVEL (defmition) 202,
11 07 A. 16-P, 11 02B
202, 1102B
lEALTH CARE PROVIDER (defmtion). 202, 1 102B
Motion picture 409
PROJECTIOMS, COR^BUSTBBLE 704.2.3, 1406.3
PROPERTY LINE (see FIRE SEPARATION
DISTAIMCE) .-.704.3
PROSCENSUWa
Opening protection 410.3.5
Wall 410.3.4
Notification appliances in
Group 1-1, R-3. 1 and R-4 907.9. 1.5
PROTRUDSMG OBJECTS (HAZARDS) 1133B.8.6
202, 1102B
Covered mall building 402.14, 2702.2.14
Special amusement buildings 41 1 .6
Underground buildings 405.7
SFM requirments 907.2. 1.3
^CE (deflnBtion) 202
lES 439
Y Chapter 32, Chapter 33
Encroachments
Chapter 32
. ..202, 1107A.16-P,
1102B
202, 1002. 1
202
307.4, Table 307.7(1)
202, 1 135B, Part 8
RAIL TRANSIT BOARDING (defmirmn) . . 202, 1 102B
RAILING (see GUARDS and HANDRAILS)
RAMPS . 1010.1
Accessible 1 133B.5
Assembly occupancy 1025.1 1
Construction 1010.7
Definition 202, 1 107 A. 18-R
Handrails 1 133B.5.5
Landings 1 133B.5.4
Outdoor 1133B.5.8
Parking garage 406.2.5
Slope 1010.2, 1133B.5.3
Wheel guides 1 133B.5.6
Width (ramps) 1 133B.5.2
REASONABLE PORTION 202
RECOMMEND 202
REFERENCED STANDARDS Chapter 35
Applicability 102.4
Fire resistance 703.2, 721 .7
List Chapter 35
Organizations Chapter 35
REFORMATORIES 308.4
REFRIGERATION (see MECHANICAL)
Machinery room 1015.4
REFUGE AREAS (see AREA OF REFUGE and
AREA FOR ASSISTED RESCUE, EXTERIOR)
REFUSE CHUTE 707.13
REINFORCED CONCRETE (see CONCRETE)
General 1901.2
Inspections 1 704.4
REINFORCEMENT
Concrete 1907, 1913.4, 1915.4
Glass block 2110.7
Masonry 2103.11
RELIGIOUS WORSHIP, PLACES OF
Classification 303, 305.1
Door operations 1008.1.8.3
Egress 1 025
Fire alarm 907.2.1
Interior finishes Table 803.5
Balcony enclosure 1025.5.1
Unlimited area 507.5
REMODELING (definition) 202
REPAIR (definition) 202
REPAIRS, BUILDING
Minor 105.2.2
•
806
2008 CITY OF LOS ANGELES BUILDING CODE
INDEX
Permit required 105.1
RESIDENT HOUSING AREA, INSTITUTIONAL 1-3
Fire detection 907.2.6.3.3
Occupant load 1004.1.2
Subdivision 408.7
RESIDENTIAL CARE/
ASSISTED LIVING FACILITIES 308.1
Fire alarms 907.2.6, 907.9.1 .3
Separations Table 508.2, Table 508.3.3
Smoke alarms 907.2.10.1 .3
Sprinklers 903.2.5, 903.3.2
RESIDENTIAL CARE FACILITY FOR THE
CHRONICkLLY ILL (RCF/CI) (definition) .... 310.2
RESIDENTIAL CARE FACILITY FOR
THE ELDERLY (RCFE) (definition) . ....310.2
RESIDENTIAL FACILITY (RF) (definition) 310.2
RESIDENTIAL OCCUPANCY (GROUP R) -310
Accessibility Chapter 11 A, 111 IB,
1114B.1.1
Accessible route Chapter 1 1A
Alterations in existing facilities Chapter 1 1A
Area Chapter 5
Doors . . 1008.1.1, 1111B.4.2.3, 1133B.2
Draftstopping 717.4.2
Emergency escape 1026.1
Height Chapter 5
Interior finishes Table 803.5
Live load Table 1607.1
Parking under 509
Partitions 708.1
Smoke alarms 907.2.10
Sprinklers 903.2.7
Visible alarms 907.9.1 .3
RESIDENTIAL OCCUPANCY GROUP R-3.1 ...310.1
Smoke alarms in housing for
bedridden persons 907.2. 10. 1.5
Notification appliances for
hearing impaired 907. 1.5
RESIDENTIAL OCCUPANCY GROUP R-4 310. 1
Fire alarm system 907.2.8.4
Notification appliances for
hearing impaired 907. 1.5
RESEARCHLABORATORIES 302.1,443
RESTRAINT (definition) 308.4.6
RESTRICTED ENTRANCE (definition) 202
RETAINING WALLS 1806
REVIEWING STANDS (see BLEACHERS and
GRANDSTANDS) 1025.1.1
Live load Table 1 607.1
RISER (definition) 202, 1 107 A. 18-R, 1 102B
RISERS, STAIR (see STAIRWAY CONSTRUCTION)
Alternating tread device 1009.9.2
Assembly .1025.6.1, 1025.11
Closed 1009.3.3
General 1009.3
Spiral 1009.8
Uniformity 1009.3.2
RODENT PROOFING Appendix F
ROLL ROOFING .. .1507.6
ROOF ACCESS. . 1009.11.1
ROOF ASSEMBLIES AND ROOFTOP STRUCTURES
Cooling towers 1509.4
Drainage . 1 503.4
Fire classification 1505
Height modifications 504.3
Impact resistance , 1504.7
Materials 1506
Parapet walls 1503.3
Penthouses 1509.2
Snow drift 1608.8
Tanks 1509.3
Towers, spires, domes and cupolas ........ 1509.5
Weather protection 1 503
Wind resistance 1504.1 , 1609.5
ROOF CONSTRUCTION
Construction walkways 3306.7
Coverings (see ROOF COVERINGS) 1609.5.2
Deck 1609.5.1
Draft stopping 717
Fire resistance Table 601
Fire blocking 717.2
Live loads Table 1607.1, 1607.11
Materials Chapter 6
Penetration of fire resistant assemblies 71 1 .5
Rain loads 1611
Roof structures 504.3, 1509, D1 02.2.9
Signs, roof mounted H1 1
Slope, minimum Chapter 1 5
Snow load 1603.1.3, 1608
Wood (see ROOF CONSTRUCTION, WOOD)
ROOF CONSTRUCTION, WOOD 602.4.5
Anchorage to masonry 1604.8.2, 2109.7.3.3
Attic access 1209.2
Ceiling joists 2308.10.2
Diaphragms 2305.2, 2306.3.2
Fastening schedule 2304.9
Framing 2304.10.3, 2308.10
Plank-and-beam. 2306.1 .2
Rafters 2306.1
Sheathing 2304.7, 2308.10.8
2008 CITY OF LOS ANGELES BUILDING CODE
807
ONDEX
Trussed rafters 2308.10.7.1
Ventilation, attic 1203.2
Wind uplift 2308.10.1
DOF COVERINGS 1507
All other areas (SFM) 1505.1.3
Asphalt shingles 1507.2
Built up 1507.10
Clay tile 1507.3
Concrete tile j^1507.3
Fire resistance . 1505
Flashing 1503.2, 1507.3.9, 1507.5.6
Impact resistance 1504.7
Insulation 1508
Liquid applied coating 1507.15
Membrane 3102
Metal panels 1507.4
Metal shingles 1507.5
Modified bitumen 1507.1 1
Plastics, light-transmitting panels 2609
Replacement/recovering 1510.3
Reproofing 1510
Roll 1507.6
Single-ply 1507.12
Slate shingles 1507.7
Sprayed polyurethane foam 1507.14
State responsibility areas 1505.1.2
Thermoplastic single-ply 1507.13
Very high fire hazard severity zones 1505. 1. 1
Wildland-urban interface areas 1505. 1.4
Wind loads 1504.1, 1609.5
Wood shakes 1507.9
Fire-retardant treated 1505.6
Wood shingles 1508.8
Fire-retardant treated 1505.6
DOF DRAIiMAGE 1503.4
DOF PROTECTiON FROr
3307.1
REPLACEMENT/RECOVERING 1510.3
¥ENTS 1016.2
DIMENSIONS 1208
310
202, 1102B
TIQH Chapter 33
Adjoining property protection 3307
Construction 3302
Demolition 3303
Exits 3310
Fire extinguishers 3309
Protection of pedestrians 3306
Sanitary facilities 3305
Site work 3304
Sprinkler system, automatic 3312
Standpipes 331 1
Temporary use of streets, alleys,
and public property 3308
SAFETY GLAZING 715.4.6.4, 2406
SANITARY FACIUTY
Accessible bathtubs 11 15B.4.5
Accessible drinking fountains 1115B.4.6
Accessible fixtures 11 158.4
Accessible lavatories 11 15B.4.3
Accessible showers 11 15B.4.4
Accessible sinks 11 15B.4.7
Accessible urinals 11 15B.4.2
Accessible water closet 11 15B.4. 1
Bathing and shower faculties 1115B.2
Definition 202
General 11 15B. 1
Multiple-accommodation (toilet facilities). . 1115B.3.1
Passageways 11 15B.5
Separate and unisex facilities 11 15B. 1.2
Single-accommodation toilet facilities .... 11 15B.3.2
Toilet facilities 11 15B.3
When used by children 11 15B. 1.3
SCHOOLS (see EDUCATIONAL OCCUPANCY)
SEATING, FIXED
Accessibility 1 106B
Bleachers (see BLEACHERS)
Grandstands (see GRANDSTANDS)
Live load Table 1607.1
Occupant load 1004.7
Temporary 1 07
SECURITY GRILLES ..1008.1.3.5
SEISMIC 1613
Loads 1613
Masonry 2106
Piers or piles 1808.2.23
Steel 2205
Soils investigation 1802.2.6, 1802.2.7
Structural observations 1707, 1709
Structural testing 1708
Ties, concrete footings 1805.4.2.2
Ties, pile foundation. 1808.2.23
Wood 2305, 2308.11, 2308.12
SERVICE STATION (see MOTOR
FUEL-DISPENSING FACILITIES)
SHAFT (see SHAFT ENCLOSURE and
VERTICAL OPENING PROTECTION) 702
808
2008 CITY OF LOS ANGELES BUILDING CODE
INDEX
SHAFT ENCLOSURE (see VERTICAL
OPENING PROTECTION) 707
Construction 707.11, 707.12
Elevators 707.14
Fire-resistance rating 707.4
Higii-rise buildings 403.3.2
IViaterials .707.3
Penetrations 707.8, 716.5.3
Refuse and laundry ciiutes .707.13
Required 707.2
SHALL (definition) 202
SHEAR WALL
Gypsum board and plaster 2505
Masonry 2102.1,2106.1.1,2109.2.1
Wood 2302.1, 2305.3, 2306.4
SHEATHING
Clearance from earth 2304.1 1 .2.2
Fastening 2304.9
Fiberboard 2306.4.4
Floor 2304.7, 2308.8.6
Gypsum 2306.4.5.1 .6
Moisture protection 2304.1 1 .2.2
Particleboard 2306.4.3
Roof 2304.7
Roof siieathing 2308.10.8
Wall 2304.6.1, 2308.9.3
Wood structural panels 2303.1 .4, 221 1 .3
SHOPPING CENTER (or SHOPPING MALL)
(definition) 202, 1 102B
SHOPPING CENTERS ,. . . . .309
SHOTCRETE 1913
SHOULD 202
SHUTTERS, FIRE (see OPENING
PROTECTIVES) 715.4
SIDEWALKS 105.2(6)
Accessibility 1 133B.7
Definition 202, 1 107A.23-7
SIGNS ..3107
Accessibility 1007.6, 1007.7, 1011.3,
1143A, 1117B.5, E107, E109.2.2
Animated devices HI 08
Area of refuge, accessible 1007.6.4, 1007.6.5
Area for assisted rescue, exterior 1007.8.3,
1 1 18A. 1
Covered mall building 402.15
Doors 1008.1.8, 1008.1.8.3
Electrical H106
Elevators .1 124A, 1 1 168
Exit ioi 1 .1 , 2702.2.3
Floor loads 1 603.3
Ground H109
Height limitation H109.1, H112.4
Illumination H106.1
Marquee H1 1 3
Occupant content, assembly 1004.3
Parking spaces 1109A.8.8, 1129B
Plastic 2611
Portable H1 14
Projecting H1 12
Roof 1115A.5, H1 10, 1123A.5
Stair identification 1 020.1 .6
Standpipe control valve 905.7.1
Tactile floor designation
signs in stain/vays •. . . . 1020. 1.6.2, 1 133B.4.3
Wall H111
SINGLE-ACCOMMODATION SANITARY
FACILITY (definition) 202
Single-accommodation toilet facilities .... 1115B.3.2
SITE (definition) 202
SITE DEVELOPMENT (definition) 202
SITE DRAWINGS 106.2
SITE WORK 3304
SKILLED NURSING AND
INTERMEDIATE-CARE FACILITIES— GENERAL
REQUIREMENTS
Activity programming space 1225. 7
Application 1224.2
Dietetic service space. 1225.5
General construction 1224.3
Nursing service space 1225.4
Pharmaceutical service space 1225.6
Scope 1225. 1
SKILLED NURSING AND
INTERMEDIATE-CARE FACILITIES— OPTIONAL
SERVICES
General 1225. 14
Occupational therapy space 1225. 16
Physical therapy space 1225. 15
Social work service 1225. 18
Special treatment program space 1225. 19
Speech pathology and/or audiolgy service. . 1225. 1 7
SKILLED NURSING AND
INTERMEDIATE-CARE FACILITIES— SUPPORT
SERVICES
Administration space 1225.8
Employee dressing rooms and lockers. .... 1225. 1 1
Laundry 1225. 13
Housekeeping rooms 1225. 12
Sterile supplies 1225.9
Storage 1225. 10
SKYLIGHTS
Light, required 1205.1
Plastic 2610
Protection from adjacent construction 3307.1
2008 CITY OF LOS ANGELES BUILDING CODE
809
SLAB, COMPOStTE STEEL DECK/
CONCRETE 2209.2
SLAB ON GROUMD, CONCRETE 1911,
2304.11.2.3
SLATE SHINGLES 1507.7
SLEEPSMG ACCOMMODATIONS
202, 1107A.19-S, 1102B
202, 1 107 A. 19-S
SMOKE BARRIERS 709, 716.5.5
Construction 709.4, 909.5
Doors 709.5, 715.4, 909.5.2
Duct penetration 716.5.5
Fire-resistance rating 709.3
Materials 709.2
Openings 709.5, 909.5.2
Penetrations 709.6
Required 407.4, 408.6
Walls 709.4
SMOKE CONTROL 909
Atrium buildings : 404.4
Covered mall building 402.9
High-rise 1020.1 .7
Special inspections 1704.14
Stages 410.3.7.2
Standby power systems 2702.2.2
Systems 909
Underground buildings 405.5
Values 3410.6.10.1
SMOKE DAMPERS 716.2-716.5
Smoke barriers 716.5.4, 716.5.5
SMOKE DETECTORS
Covered mall 907.2.20
Group I occupancies 907.2. 15.2
High-rise buildings 403.5, 907.2.12
HPM 415.8.9
Institutional 1-2 407.6
Motion picture and television production
studio sound stages and approved
production facilities 907.2.24
Multiple-station 907.2.10
Presidential aircraft hangars 907.2.21
Residential occupancies 907.2.10.1
Group R-4 907.2. 15.3
SFM requirements for single and
multistory buildings 907.2. 15. 1
Single station 907.2.10
Smoke-activated doors 715.4.7.3
Special amusement buildings 411.5
Underground buildings 907.2.18
SWiOKE EXHAUST SYSTEMS
Underground buildings 405.5, 907.2.18, 909.2
407.3,710
Materials 710.2
Fire-resistance rating 710.3
Continuity 710.4
Openings 710.5
Penetration and joint ..710.6
Ducts and air transfer openings 710.7
Smoke and draft control doors 710.5.2
SMOKE VENTS 410.3.7.1,910,1016.2
SMOKEPROOF ENCLOSURES 1020.1.7
Design 909.20
SNOW LOAD 1608
Glazing 2404
SOILS AND FOUNDATIONS Chapter 18
Classification 1802.3
Depth of footings 1805.2
Excavation, grading and fill 1803
Expansive 1802.3.2, 1805.8
Footings and foundations 1805
Footings on or adjacent to slopes 1 805.3
Foundation walls 1805.5
Foundations, pile and pier 1808
Grading 1803.3
Investigation 1802
Investigation, pile and pier 1802.2
Investigation, seismic 1802.2.6, 1802.2.7
Load bearing values 1804
Soil boring and sampling 1802.5
Soil lateral load 1610
Special inspection 1704.7
Testing, piles 1808.2.8.3
SOUND TRANSMISSION 1207
SPACE (definition) 202
SPARK ARRESTER ,. . . .2802
SPECiAL ACCESS LIFT
(definition) 202, 1 107A. 19-S, 1 102B
SPECIAL CONSTRUCTION Chapter 31
SPECIAL INSPECTIONS (see
INSPECTIONS) Chapter 17
Continuous 1702.1
Periodic 1702.1
Statement 1705
SPECIAL PROVISIONS FOR LICENSED
24-HOUR CARE FACILITIES IN A GROUP 1-1,
R-3J OR R-4 OCCUPANCY 425
SPECIFIED PUBLIC TRANSPORTATION
(definition) 202, 1 102B
SPIRAL STAIRS 1009.8
Stages 410.5.3
SPRAY=APPLIED FIRE. RESISTANT
MATERIALS 1702.1
Inspection 1704.10
Steel column calculated fire resistance . . . 721.5.2.2
810
2008 CITY OF LOS AiMGELES BUSLDING CODE
INDEX
SPRINKLER SYSTEMS, AUTOMATIC 903
Exempt locations. 903.3.1 .1
Substitute for fire rating Table 601(4)
Values 3410.6.17
SPRiMKLERS, REQUIRED 903
Aircraft hangars 412.2.6
Aircraft paint hangars 412.4
Atrium building 404.3
Basements .903.2.10.1
Covered mall building 402.8
Garages 406.3.10, 903.2.8
Hazardous occupancies 903.2.4
High-rise buildings 403.2
Incinerator rooms Table 508.2
Laundry chutes, refuse chutes, termination
rooms and incinerator rooms . . 707.13, 903.2.10.2
Multistory buildings 903.2.10.3
Spray finishing booth 41 6.4
Supervision (see SPRINKLERS,
SUPERVISION) 903.4
Underground buildings 405.3
SPRINKLERS, SUPERVISION 903.4
Service 901.6
Underground buildings 405.3
STAGES AND PLATFORMS 410
Alternating tread stairway 410.5.3
Definition 202, 410.2
Dressing rooms 410.5
Egress 410.5.3, 1015.6
Fire barrier wall 410.5.1
Floor finish and floor covering 804.4
Platform, temporary 410.4.1
Platform construction 410.4
Proscenium curtain .410.3.5
Proscenium wall 41 0.3.4
Roof vents •. 41 0.3.7.1
Scenery 410.3.6
Smoke control 410.3.7.2
Sprinkler system, automatic 410.6
Standpipes 410.7
Ventilation 410.3.7
202, 1002. 1
1 133B.4
Accessibility 1 133B.4
STAIRWAY (see ALTERNATING TREAD DEVICES,
STAIRWAY CONSTRUCTION and STAIRWAY
ENCLOSURE)
Exterior exit way 1023.1 , 1024.1
Discharge barrier 1020.1
Tactile floor designation signs
in stainways 1020.1.6.2, 1133B.4.3
Width, minimum 1009.1
STAIRWAY CONSTRUCTION
Aisle 1025.9
Alterations 3403.4
Alternating tread 1009.9
Circular (see Curved)
Curved 1009.7
Elevators .3002.7
Enclosure under 1009.5.3
Fire blocking 717.2.4
Handrails 1009.10
Headroom 1009.2
Illumination 1205.4
Landings 1009.4
Live load Table 1 607.1
Projections 1009.1 1 .7
Seismic anchorage 2308.12.7
Spiral 408.3.3, 1009.8
Treads and risers 1 009.3
Width 1009.1
Winders 1009.3
STAIRWAY ENCLOSURE 1020.1
Access .1020.1 .7.2
Construction 1 020.1 .2
Discharge 1024.1
Doors, automatic closing 715.4.7
Elevators within 3002.7
Fire-resistant construction 1020.1
Penetrations .1020.1 .2
Space below, use 1009.5.3
Ventilation 1020.1 .3
STANDBY POWER
Atriums .404.6
Covered mall building 402.13
Elevators 3003.1
Hazardous occupancy 414.5.4
High-rise 403.10
Stages .,.909.11
Underground buildings 405.9
STANDPIPE AND HOSE SYSTEMS
(see STANDPIPES, REQUIRED) 905
Dry 905.8
Hose connection location 905.1, 905.4-905.6
Cabinet locks 905.7.2
STANDPIPES, REQUIRED
Assembly 905.3.2, 905.5.1
Covered mall buildings. . 905.3.3
During construction 905.10
Stages 905.3.4
Underground buildings 405.1 1 , 905.3.5
2008 CITY OF LOS ANGELES BUILDING CODE
811
INDEX
sTME LAW . .102.2
ITEEL Chapter 22
Bolting. 204.2
Cable structures 2207
Calculated fire resistance 721 .5
Cold-formed 2202.1, 2204, 2210
Conditions of restraint 703.2.3
Deck/concrete composite slabs 2209.2
Identification and protection 2203
Inspection, concrete reinforcement 109.3.1
Joists 2202.1 , 2206
Open web joist 2206
Parapet walls 1503.3
Piles ...1809.3
Reinforcement, concrete 1907
Seismic provisions 2205.2
Storage racks 2208
Structural 2205
Welding 2204.1
ITQME VEMEEB '. . 1405.6
Slab-type 1405.7
sTOP WORK ORDERS 114
STORAGE OCCUPAMCY (GROUP S) .... 31 1 , 7 125B
Area Chapter 5
Automobile parking garage 406
Floor loads Table 1607. 1
Hazard storage, Group S-1, moderate ....... 311.2
Hazard storage, Group S-2, low 311.3
Heiglit Chapter 5
High piled combustible 413
Interior finishes Table 803.5
Smoke and heat vents 91 0.2
Sprinkler system, automatic 903.2.9
Travel distance increase 1016.2
...202, 1102B
202, 1 102B
STRENGTH
Design requirements 1604.2
Masonry 2102.1
Nominal 1 602.1
Required 1602.1
STRENGTH DESIGN 1602.1, 1604.1
Masonry 2101 .2.2, 2108
STRUCTURAL DESIGN Chapter 16
Aluminum Chapter 20
Concrete Chapter 19
Foundations Chapter 18
Masonry Chapter 21
Steel Chapter 22
Wood Chapter 23
202, 1 1028
TRUCTURAL FRAME INSPECTION 109.3.4
TRUCTURAL TESTS AND SPECBAL
INSPECTOONS Chapter 17
Alternative test procedure 171 1
Approvals 1703
Contractor responsibilities 1706
Design strengths of materials 1710
General 1701
In-situ load tests 1713
Material and test standards 1715
Preconstruction load tests 1714
Special inspections 1704, 1707
Statement of special inspections 1705
Structural observations 1709
Structural testing 1708
Test safe load 1712
TRUCTURAL OBSERVATBON 1702.1, 1709
tion) 202
sTBNG Chapter 34
Accessibility 1 1348
Additions, alterations or repairs 3403
Change of occupancy 3406
Glass replacement 3405
Historic buildings 3407
Moved structures 3408
Unsafe 115
STUCCO 2512
SUBTERRANEAN SPACES FOR
^ERY FACIUTSES IN NATURAL
MANMADE CAVES 303.3, 436
IMING POOL (Other Building
).... 11048.4.3, 11178.4, Chapter 31 8
POOL, GLASS 2406.3
IG POOL/ENCLOSURES Chapter 31 8
Residential 3109.4
T
TACTILE (defmirmm) 202
TECHNICALLY SNFEASIBLE (defmition) ... 202
TELEPHONE EXCHANGES 304
TELEPHONES (AccessibSe) 1 1178.2
TELESCOPIC SEATING (see FOLDING AND
TELESCOPIC SEATING)
TEMPORARY (defmltion) 202
TEIVIPORARY STRUCTURES 3103
Certificate of occupancy 107.3
Conformance .107.2
Permit 107.1
Power, temporary 1 07.3
Structures 3103
Termination of approval 107.4
812
2008 CITY OF LOS ANGELES BUILDBNG CODE
INDEX
TENANT SEPARATION
Covered mall buildings 708.1
TENTS
Standby power 2702.2.8
Tents and membrane structures Chapter 31 E
TERMITES, PROTECTION FROM 2304.1 1
TERRA COTTA 1405.8
Building official required. 104.1 1 .1
Concrete 1905.6.2.4, 1905.6.5.2
Fire-resistant materials 703.2
Glazing 2406, 2408.2.1 :
Roof tile 1715.2
Seismic 1708
Smoke control, atrium buildings 909.3
Soils 1802
Sprinklers 904.4
Structural Chapter 17
TESTING AGENCY (definition) 202
TEXT TELEPHONE (definition) : 202, 1 102B
THEATERS (see PROJECTION ROOMS and
STAGES AND PLATFORMS) 303
THERMAL BARRIER, FOAM PLASTIC
INSULATION 2603.4, 2603.5.2
THERMAL^ AND SOUND-INSULATING
MATERIALS 719
Cellulose loose-fill insulation 719.6
Loose-fill insulation 719.4
Roof insulation 719.5
THRESHOLDS 1115B.4.4.2
THROUGH-PENETRATIONS
Air ducts 716.6.1
Fire barriers 706.8
Fire rated walls 712.3.1
Fire-rated horizontal assemblies .712.4.1
Fire stop system 712.3.1.2,712.4.1.2
2102.1
Ceramic (see CERAMIC TILE) fire resistance, clay
or shale 720.1
7EB0ARD (definition) 202, 1 107A.20-T
ILETS
Accessible 1134A, 1127A, 1115B
Fixture count Table 2902.1
Grab bars 1127A.4, 1115B.7.2, 1607.7.2
Location 2902.4, 2902.5, 2902.6
Rooms openings 1210.5
Unisex 1 127A.7.2, 2902.1 .1
Unisex and separate facilities 1115B.1.2
Airport traffic control 412.1
Airport traffic control tower accessibility .... 412.1 .6
Construction ; 31 08.3
Dead load 3108.4.1
Grounding 3108.5
Location and access 31 08.2
Radio 3108
Television 31 08
Wind load 3108.4.2
TOWERS, COOLING 1509.4
TOWNHOUSE (definition) 202, 1107A.20-T
TOXIC MATERIALS
Classification : ; . . 307.6
Gas detection system 908.3
Separation .415.7.3
TRANSIENT LODGING 1111B.4
Definition 202, 1102B
TRANSIT BOARDING
PLATFORI^ (definition) , . 202, 1 102B
TRANSPORTATION FACILITIES 1 121 B
Airports 1 121B.4
Bus stops and terminals 1 121B.2
Fixed facilities and stations 1121B.3
General 1121 B.I
TRAVEL DISTANCE
Area of refuge 1 007.6
Atrium 404.8
Balcony, exterior 1016.3
Common path of travel 1013.3
Factory-industrial occupancy, increase 1016.2
Mall 402
Mall tenant space 402.4.4
Measurement 1016.1
Storage occupancy, increase 1016.2
TREAD (definition) 202, 1107A.20-T, 1102B
TREAD DEPTH (definition) .. 202, 1102A.20-T, 1102B
TREAD RUN (definition) 202, 1 102A.20-T, 1 102B
TREADS, STAIR (see STAIRWAY CONSTRUCTION)
TREATED WOOD 2302.1
Stress adjustments 2306.1 .3
TRUSSES .2303.4
Fire resistance .714.2.3
Materials Chapter 6
Metal-plate-connected parallel wood 2303.4.2
TUNNELED WALKWAY 3104
TURNSTILES 1008.3, 1110B.1.5, 1133B.1.3.4
TYPE OF MOTOR FUEL (definition) . . . 202, 1 101 C. 1
U
UNDERGROUND BUILDINGS 405
Compartmentation 405.4
Construction type 405.2
Elevators 405.4.3
Emergency power loads 405.10
2008 CITY OF LOS ANGELES BUILDING CODE
813
DNDEX
Exits 405.8
Fire alarm systems 405.6
Public address 405.7
Smoke exhaust 405.5.2
Smoke proof enclosure 1020.1 .7
Sprinkler system, automatic 405.3
Standby power 405.9.1, 2702.2.16
Standpipe system 405.11
Voice alarms 907.2.19
UNLllVliTED AREA BUILDINGS 507
UNREASONABLE HARDSHIP (definitiori)) 202
UNSAFE STRUCTURES AND EQUIPMENT (see
STRUCTURES, UNSAFE) 115
Appeals 112, Appendix B
Restoration 1 1 5.5
Revocation of permit 1 05.6
Stop work orders 1 14.1
Utilities disconnection 1 1 1 .3
UNSTABLE MATERIALS 307.3
UNUSABLE SPACE 711 .3.3
USE AND OCCUPANCY Chapter 3
Accessory 508.3.1
Incidental 508.2, Table 508.2
Mixed 508.3
UTILITIES Ill
Service connection 111.1
Service disconnection 1 1 1 .3
Temporary connection 1 1 1 .2
UTILITY AND MISCELLANEOUS OCCUPANCY
(GROUP 0) 312
Agricultural buildings Appendix C
Egress illumination 1011.2
Sprinkler system, automatic. 903.2.10
VALUE (see FEES, PERMIT) . . 108.3
,E BARRIERS 406.2.4, 1602.1, 1607.7.3
M SHOW ROOMS 304
VEHICULAR OR PEDESTRIAN ARRIVAL POINTS
202, 1107A.22-V
202, 1102B
VENDING MACHUNES AND OTHER
EQUIPMENT 1 1268
VENEER
Glazing 1405.11
Cement plaster 1405.14
Fastening 1405.16
Fiber cement siding 1405.15
Masonry, adhered 1405.9
Masonry, anchored 1405.5
Metal 1405.10
Plastic 2605
Slab-type 1405.7
Stone 1405.6
Terra cotta 1405.8
Vinyl .1405.13
Wood 1405.4
VENTILATION (see MECHANICAL)
Attic 1203.2
Bathrooms 1203.4.2.1
Crawl space 1203.3
Elevator hoist ways 3004
Enclosed parking garages 406.4.2
Exhaust, hazardous 1203.5
Exhaust, HPM 415.9.10.2
Exit enclosure 1020.7.1
Fabrication areas, HPM 415.9.2.6
Hazardous, storage and dispensing 414.3
High-rise .1020.1.7
HPM service corridors 415.9.4.3
Mechanical 1203.1
Natural 1203.4
Projection rooms 409.3
Repair garages 406.6.3 ^^
Smoke proof enclosures 909.20.3, 909.20.5 fli
Stages 410.3.7 ^^
Under-floor ventilation 1203.3
VENTS, PENETRATION PROTECTION 712
VERMICULITE, FIRE RESISTANT 720
VERTICAL OPENING PROTECTION
Atriums 404.5
Duct penetrations 716.1
Elevators 707.14
Institutional 1-3 occupancy 408.5
Shaft enclosure 707
Value 3410.6.6.1
VESTIBULES, EXIT DISCHARGE 1024.1
VINYL
Expanded 802, 803.7
Rigid 1405.13
VIOLATIONS 113
VOICE ALARM (see also ALARMS, VOICE)
Amusement buildings, special 41 1 .6
Covered mall buildings 402.14
High-rise buildings 907.2.12
Underground buildings 907.2.19.1
WALK (definition) . 202, 1 102A.20-T, 1 102B
WALKS AND SIDEWALKS 1133B.7
814
2008 CDTY OF LOS ANGELES BUILDING CODE
INDEX
WALKWAY, COVERED, ENCLOSED AND
TUNNELED WALLBEARING 3104
Fire resistance Table 601
Live load Table 1607.1
Materials per construction type : Chapter 6
Opening protection 715
WALL, EXTERIOR 704
Bearing Chapter 6
Coverings 1 405
Fire-resistance ratings 704.5, 706, 1403.6
Flashing, veneered walls 1405.3
Foam plastic insulation 2603.4.1.4, 2603.5
Light-transmitting plastic panels 2607
Materials .704.4, 1406
Nonbearing Chapter 6
Opening protection 704
Projections 704.2
Structural stability 704.6
Veneer {see VENEER)
Weather resistance 1403.2, 1405.2
Weather resistant barriers 1405.2
WALL, F8RE (see FIRE WALLS)
WALL, FIRE RESISTANT, PENETRATIONS .... 712.3
WALL, FOUNDATION 1805.5
Dampproofing and waterproofing 1807
Opening protection 715
WALL, INTERIOR NONBEARING (see PARTITIONS)
WALL, MASONRY 2102.1
Lateral stability 2109.2
Lateral support 2109.4, 2106
Shear 2109.2.1
Wood contact 2304.1 1 .2.3, 2304.1 1 .2.5
PARAPET 704.11, 1503.3, 2109.5.4
PARTY (see FIRE WALLS)
RETAINING 1806, 2304.11.7
VENEERED (see VENEER) ..... Chapter 14
., WOOD CONSTRUCTION
Bracing ' 2308.9.3
Cutting, notching, boring 2308.9.10
Exterior framing 2308.9
Fastening schedule 2304.9
Framing 2304.3, 2308.9
Interior bearing partition 2308.9.1
Interior nonbearing partition 2308.9.2.3
Openings 2308.9.5, 2308.9.6, 2308.9.7
Shear walls 2305.3, 2306.4
Sheathing (see SHEATHING)
Studs 2308.9.1
Top plates 2308.9.2.1
MTERFOUmAINS (drinking). . . 1115B.4.6, 1117B.1
WATER-REACTIVE MATERIALS. Table 307.1(1)
WEATHER, COLD
Concrete construction 1905.12
Masonry construction 2104.3
WEATHER, HOT
Concrete construction 1905.13
Masonry construction 2104.4
WEATHER PROTECTION
Exterior walls 1405.2
Roofs 1503
WEEP HOLES 2104.1.8
WELDING 2204.1
Materials, verification of
steel reinforcement 1704.4.1
Special inspections 1704.3.1, 1707.2
Splices of reinforcement
in masonry 2107.6, 2108.3
WHEELCHAIR (definition) 202
WHEELCHAIR OCCUPANT (or WHEELCHAIR
USER) (definition) 202
WHEELCHAIR SPACE (definition) 202
WILDLAND-URBAN INTERFACE
FIRE AREA Chapter 7A
WIND LOAD. 1609
Basic wind speed 1 609.3
Construction documents 1603.1.4
Exposure category 1609.4
Glazing 2404G
Glass block 2110.3.1
Hurricane-prone regions 1609.2
Provisions for walls 2306.2
Roofs 1504.1, 1609.5, 2308.10.1
Seismic detailing 1604.10
Testing 1715.2.2
Wind-borne debris region 1609.2
WINDERS, STAiR (see STAIRWAY CONSTRUCTION)
WINERY CAVES .436
Fire alarm system 907.2.27
WINDOW
Emergency egress 1026
Exterior, structural testing 1714.5
Fire (see OPENING PROTECTIVES) 715.4.7,
715.4.8
Glass (see GLAZING) 1405.12
Required, light and ventilation 1205.2
Wells 1026.5
WIRES, PENETRATION PROTECTION 712
WOOD Chapter 23
Allowable stress design 2306
Assemblies, calculated fire resistance 721 .6
Bracing, walls 2308.9.3
Ceiling framing 2308.10
2008 CDTY OF LOS ANGELES BUILDING CODE
815
DNDEX
Connections and fasteners 2304.9
Contacting concrete, nnasonry or eartli . . . 2304.1 1 .4
Decay, protection against 2304.1 1
Diaphragms 2305.2, 2306.3
Draft stopping 717.3, 717.4
End-jointed lumber 2303.1 .1
Fiberboard 2303.1.5, 2306.4.4
Fire-retardant treated 2303.2
Fire blocking 717.2
Floor and roof framing (see FLOOR
CONSTRUCTION, WOOD) 2304.4
Floor sheathing .2304.7
Foundation 1805.4.6, 2308.3.3.1
Grade, lumber 2303.1 .1
Hardboard 2303.1 .6
Heavy timber construction 2304.10
Hurricane shutters 1609.1.2
l-joist 2303.1.2
Inspection, special . 1704.6, 1707.3
Lateral force-resisting systems . . . . 2305
Light-frame construction, conventional . 2308
Load and resistance factor design 2307
Moisture content 2303.1 .8.2, 2303.2.5
Nails and staples 2303.6
Particleboard shear walls 2306.4.3
Plywood, hardwood 2303.3
Preservative treated 1403.6, 2303.1.8
Roof framing (see ROOF CONSTRUCTION,
WOOD) 2304.4
Roof sheathing 2304.7
Seismic provisions. . . 2305, 2306, 2308.11, 2308.12
Shear walls 2305.3, 2306.4
Standards and quality, minimum 2303
Structural panels 2302.1, 2303.1.4
Supporting concrete or masonry 2304.12
Termite, protection against 2304.1 1
Trusses 2303.4
Veneer Chapter 1 4
Wall framing (see WALL,
WOOD CONSTRUCTION) 2304.3
Wall sheathing 2304.6
Wind provisions 2306.2
3. ...1507.8,1507.9
}) 2302.1,2303.1.4
Diaphragms 2306.3.2
Shear walls 2306.4.1
Sheathing 2304.6.1
704.3, 1206
Definition 202, 1 102B
Workstations 1 123B.2
816
2008 CITY OF LOS ANGELES BUILDSNG CODE
HISTORY NOTE APPENDIX
CALIFORNIA BUILDING CODE
Title 24, Part 2, California Code of Regulations (CCR)
For prior history, see the History Note Appeiidix to the CaH-
fornia Building Code, 2001 Triennial Edition effective Novem-
ber 1, 2002.
1. (BSC 01/06, BSC 06/06, DSA-AC 01/06, DSA-AC 02/06,
DSA-SS 01/06, DSA-SS 02/06, HCD 04/06, OSHPD
02/06, OSHPD 03/06, OSHPD 04/06, SFM 05/06)
Adoption by reference of the 2006 International Building
Code with necessary state amendments and repeal of the
1997 edition of the Uniform Building Code. Filed with the
Secretary of State on February 15, 2007 and effective on
January 1, 2008.
2008 CITY OF LOS ANGELES BUILDING CODE 81 7
81 8 2008 CITY OF LOS ANGELES BUILDING CODE
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Order Shipping
Subtotal Charge
lis. Shipping, Domestic
Up to S50 $6.50
$50.01 to $100 $8
$100.01 to $200 $9.50
$200.01to$500 $12
$500.01 and more 3% of subtotal
kK, HI AND U.S. Possessions Shipping
Up to $50 $11
$50.01 to $100 $16
$100.01 to $200 $23
$200.01 to $500 $30
$500.01 or more 10% of subtotal
Foreign Shipping
Canada and Mexico 20% of subtotal
All Other Countries . . .$20+20% of subtotal
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Sales Mi M a, Fl, 11, KS, NY, OH, OK, PA, UT,
and WA add applicoble soles tax.
Subtotal
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lETURNS AND iEFUNDS
Products may be returned in new, resaloble
condition within 30 days with proof of
purchase. A restocking fee of 20 percent of
the original selling price will be imposed on
accepted returns. All returns must have
written outhorizotion from ICC.
No refunds ore mode for software, audio or
video products. Defective items may be
exchanged only for the same titles or
editions. Please call 1-800-786-4452 for
complete details.
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