Vehicle registration plates of the Republic of Ireland Vehicle registration plates of the Republic of Ireland In the Republic of Ireland, vehicle registration plates (commonly known as "number plates") are the visual indications of motor vehicle registration – officially termed "index marks" – which it has been mandatory since 1903 to display on most motor vehicles used on public roads in Ireland. The alphanumeric marks (or "registration numbers") themselves were issued by the local authority in which a vehicle is first registered. The current specification for number plates is the format YYY–CC–SSSSSS. Those issued from 1987 to 2012 had the format YY–CC–SSSSSS. The components are: Since 1991, the
Vehicle registration plates of Saskatchewan standards. Saskatchewan is currently one of three provinces where decals are not used to show that the vehicle has valid registration, the others being Quebec and Manitoba. Vehicle registration plates of Saskatchewan The Canadian province of Saskatchewan first required its residents to register their motor vehicles and display licence plates in 1912. Plates are currently issued by Saskatchewan Government Insurance. 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