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 Slovenia at the rear. On regular issue license plates, the first 2 letters before the shield sticker denote the region where the car was initially registered. Further division is made by the coat of arms of the corresponding city, placed after the regional area letters to denote subdivisions. Vehicle registration plates of Slovenia Slovenian car number plates are vehicle registration plates found on Slovenian cars. The registration plates are made of metal. On the left there is a blue bar as in other EU countries (in use since 2004) along with tamper-proof text up to 2008; the text is in black