The Mayor of the District of Columbia may enter into an interstate agreement with the Commonwealth of Virginia or with the State of Maryland, or with both, pursuant to which the parties to such agreement may assist each other in the enforcement of its laws relating to traffic (including parking violations).
D.C. Code § 50-2201.23
Mayor may enter into interstate agreement concerning enforcement of traffic laws
June 30, 1972, 86 Stat. 392, Pub
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.