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 Nigeria Vehicle registration plates of Nigeria Nigerian vehicle registration plates in current used were introduced in 1992 and revised in 2011. Nigeria and Liberia are the only two African countries that use the North American standard 6 × 12 inches (152 × 300 mm). The international code for Nigeria is "WAN" (West Africa Nigeria). The license plates are generally white and the number itself is imprinted in blue. In the upper left-hand corner they carry the Flag of Nigeria or the national coat of arms. The state name and slogan is displayed at the top centre of the plate, and the