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 red background with white lettering, and consist of up to three numbers, followed by CD or CMD and another number. Instead of the name of the state, they read CORPS DIPLOMATIQUE. Cars of the consular corps have instead the letters CC or CORPS CONSULAIRE. 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