Vehicle registration plates of Washington, D.C.

The U.S. federal district of Washington, D.C., first required its residents to register their motor vehicles in 1903. Registrants provided their own license plates for display until 1907, when the district began to issue plates.
Plates are currently issued by the District of Columbia Department of Motor Vehicles (DC DMV). Front and rear plates are required for most classes of vehicles, while only rear plates are required for motorcycles and trailers.
Passenger baseplates.
1907 to 1966.
In 1956, the United States, Canada, and Mexico came to an agreement with the American Association of Motor Vehicle Administrators, the Automobile Manufacturers Association and the National Safety Council that standardized the size for license plates for vehicles (except those for motorcycles) at in height by in width, with standardized mounting holes. The first Washington, D.C. license plate that complied with these standards was issued three years beforehand, in 1953 (dated March 31, 1954).
1966 to present.
Since November 2000, the standard Washington, D.C. license plate design has featured some form of the slogan "Taxation Without Representation", referring to the unique circumstance that the district's residents face, in which they must pay federal income tax but cannot elect a voting member of the United States Congress.