The U.S. state of Florida first required its residents to register their motor vehicles in 1905. Registrants provided their own license plates for display until 1918, when the state began to issue plates, becoming the last of the contiguous 48 states to do so.
Plates are currently issued by the Florida Department of Highway Safety and Motor Vehicles. Only rear plates have been required since 1922 (with the exception of large trucks, which require both front and rear plates).
Passenger baseplates 1918 to 1974 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 1955 (dated 1956) issue was the first Florida license plate that complied with these standards.