Vehicle registration plates of the Channel Islands Vehicle registration plates of the Channel Islands Vehicle registration plates, commonly referred to as number plates, are the mandatory numeric or alphanumeric plates used to display the registration mark of a vehicle. The Crown dependencies of Guernsey and Jersey are outside the United Kingdom and the European Union, and have registration marks that are different from those used in the UK. Jersey registration plates consist of the letter 'J' followed by one to six digits; plates may now incorporate the coat of arms of Jersey in a white strip on the left, along with the country identifier GBJ (Great Britain
International vehicle registration code on 21 May 1977, in signatory countries it replaces previous road traffic conventions, notably the 1949 Geneva Convention on Road Traffic, in accordance with its Article 48. One of the main benefits of the convention for motorists is the obligation on signatory countries to recognize the legality of vehicles from other signatory countries. When driving in other signatory countries, the distinguishing sign of the country of registration must be displayed on the rear of the vehicle. The sign may either be placed separately from the registration plate as a white oval plate or sticker, or be incorporated in the vehicle