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 Finland Vehicle registration plates of Finland Finnish vehicle registration plates usually carry three letters and three numbers separated with a dash (e.g. ABC 123), though vanity plates may carry just one of each. Since 1989 the code has no connection with the geographic location, except that Åland has its own type of plate. Between 1972/1973 and 1989 the first letter indicated where the vehicle was first registered as the plate did not have to be changed even if the vehicle was moved to another area of Finland. The registration number consists of two or three letters and a (maximum) three-digit number,