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 had to provide their own license plates for display until 1907, when the district began to supply plates.

In 1956, the U.S. states and Canadian provinces 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 6 inches (15 cm) in height by 12 inches (30 cm) 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).

Since November 2000, the standard Washington, D.C. license plate design has featured 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.

7-digit plates began in August 2013.

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