Vehicle registration plates of Mexico Vehicle registration plates of Mexico Vehicle registration plates of Mexico are issued with unique visual designs by each state, but with a single national numbering system, such that serials are not duplicated in multiple states. Most states change designs approximately every three years, with each state having its own plate replacement cycle. Every year, owners of Mexican-registered vehicles pay the "tenencia" or "revalidación de placas" (car plates renewal tax). A set of Mexican plates includes one pair of plates, a windshield sticker, and in some states a plate sticker. The international code for Mexico is "MEX". In 2001 the size
Vehicle registration plates of the United Kingdom Air Force codice_76. Since 1949, British military vehicle registration numbers are mostly either in the form of two digits, two letters, two digits (e.g. codice_77), or from 1995 onwards, two letters, two digits, two letters (for example, codice_78). Until the mid-1980s, the central two letters signified the armed service, or the branch or category of vehicle. For example, Chief of Fleet Support's staff car in 1983–85 was codice_79, and First Sea Lord's car codice_80 and Second Sea Lord's codice_81, normal civilian plates replacing them when security required; and, in 1970, one of 's Land Rovers was codice_82 and 's ship's