In the UK, the vehicle licence, which is also commonly known as a tax disc, comes in the form of a paper disc 7½ cm in diameter to be displayed on the vehicle, and is evidence that the necessary vehicle excise duty has been paid for the specific vehicle. It should be placed on the left side of the windscreen if it is a four wheeled vehicle, but if it is a two wheeled vehicle then it should be placed in a holder fixed onto the bodywork.
A Vehicle registration certificate is an official document providing proof of ownership of a motor vehicle. It is used primarily by governments as a means of ensuring that all road vehicles are on the national vehicle register, but is also used as a form of law enforcement and to facilitate change of ownership when buying and selling a vehicle.
