Whether the identifier is associated with a vehicle or a person also varies by issuing agency. In some countries, the identifier is unique within the entire country, while in others it is unique within a state or province. The registration identifier is a numeric or alphanumeric ID that uniquely identifies the vehicle owner within the issuing region's vehicle register. Whether they are required for other vehicles, such as bicycles, boats, or tractors, may vary by jurisdiction.
All countries require registration plates for road vehicles such as cars, trucks, and motorcycles. Some jurisdictions license non-traditional vehicles, such as golf carts, particularly on on-road vehicles, such as this one in Put-in-Bay, Ohio.Ī vehicle registration plate, also known as a number plate (British English) or a license plate (American English), is a metal or plastic plate attached to a motor vehicle or trailer for official identification purposes.