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 Cuba and four numbers, and texts "U.S.N.B." and "Gtmo Bay Cuba". Vehicle registration plates of Cuba The current vehicle registration plate system of Cuba was introduced in May 2013. Current plates are European standard 520 mm × 110 mm, completely replacing the previous system introduced in 2002.The international vehicle registration code for Cuba is C. From the 1950s through 1978, and again from 2002 through 2013, plates were North American standard 6 × 12 inches (152 × 300 mm). Cuban vehicle registration plates contained three letters and three numbers. The colour of plates is also an important identification element. Ordinary (non-special)