On and after June 29, 1956, the Council of the District of Columbia is authorized and directed to designate, reserve, and properly mark appropriate and sufficient parking spaces on the streets adjacent to all public buildings in such District for the use of members of Congress engaged on public business.
D.C. Code § 50-2631
Parking space for members of Congress
June 29, 1956, 70 Stat. 447, ch. 479, § 1
Official source: D.C. Law Library (Council of the District of Columbia). Reproduced from public-domain District of Columbia statutes; confirm against the official source for the current text. Not legal advice.