Supreme Court of the United States, Banks v. Manchester (128 U.S. 244, 1888): "The authentic exposition and interpretation of the law, which, binding every citizen, is free for publication to all, whether it is a declaration of unwritten law, or an interpretation of a constitution or a statute."
Code: Official Code of the District of Columbia: Contents:Laws 19-73-19-93, 19-120.
LEGALLY BINDING DOCUMENT: OFFICIAL CODE United States of America, District of Columbia
All citizens and residents are hereby advised that this is a legally binding document duly promulgated and enacted and that failure to comply with such requirements as hereby detailed within may subject you to criminal or civil penalties under the law. Ignorance of the law shall not excuse noncompliance and it is the responsibility of the citizens to inform themselves as to the laws that are enacted in the United States of America and in the District of Columbia and all cities and territories contained therein.