International vehicle registration code system is used for vehicles belonging to the diplomats of foreign countries with license plate from the host country. That system is host country-specific and varies largely from country to country. For example TR on a diplomatic car in the USA indicates Italian, not Turkish. Such markings in Norway are indicated with numbers only, again different from international standards (e.g. 90 means Slovakian. International vehicle registration code The country in which a motor vehicle's vehicle registration plate was issued may be indicated by an international licence plate country code, formerly known as an International Registration Letter or International Circulation Mark.
Vehicle registration plates of Norway numbering scheme or plate kind to indicate vehicle usage such as police, taxi, ambulance or others, except for type E plates used by foreign diplomats. The numbers for all plates except type C have a code consisting of two letters and a serial number. Class C only carries a sequence number. The letters identify the district in which the vehicle was first registered. For example, in Stavanger, prefixes like RE, RH and RJ are used. The car registration number is not altered when the owner moves to another town, or if it is sold. The registration number is assigned to