Vehicle registration plates of Kentucky

The U.S. state of Kentucky first started requiring its residents to register their motor vehicles and display license plates in 1910.

In 1956, the U.S. states and Canadian provinces came to an agreement with the Automobile Manufacturers Association that standardized the size for license plates for vehicles, except those for motorcycles, at six inches in height by twelve inches in width, with standardized mounting holes. The 1955 (dated 1956) issue was the first Kentucky license plate that complied with these standards.

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