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 Thailand maroon background. Military vehicles have registration plates bearing their registration number preceded by the emblem of their respective military branch. Combat vehicles have red-on-white plates, while non-combat vehicles' plates are white-on-black. Vehicle registration plates of Thailand Thailand's vehicle registration plates are issued by the Department of Land Transport (DLT) of the Ministry of Transport. They must be displayed on all motorized road vehicles (with the exception of royal-, police- and military-owned vehicles), as required by the Motor Vehicle Act, B.E. 2522 (1979 CE) and the Land Transport Act, B.E. 2522. The plates vary in design, colors and dimensions according to