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 Singapore "S", preceded by up to four numerals for their test drive vehicles. Driving instructors teaching students in Singapore must display an "L" ("learner") plate beside their vehicle registration plates on both the front and back of the vehicle. Vehicle registration plates of Singapore Vehicle registration plates in Singapore are administered by the Land Transport Authority. In general, every motor vehicle in Singapore has a vehicle registration number. Two colour schemes are in use: the black-on-white (front of the vehicle) and black-on-yellow (rear) scheme, or the popular white-on-black scheme. The number plate has to be made of a reflective plastic or