The Canadian province of Quebec first required its residents to register their motor vehicles in 1906.

Trailer plates ("R" category) are not renewed annually: they are only registered upon initial purchase, or when transferred to another owner.

[3] Enforcement is done by a variety of methods, including automated number plate recognition.

[5] Relief Design Inc., of Saint-Louis-de-Blandford, Quebec, is the sole producer of licence plates on behalf of the Société de l'assurance automobile du Québec (SAAQ).

[10] In 1956, Canada, the United States 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 licence 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.