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 plate process is redone every 5 years. A new plate design introduced in April 2011 eliminates a white line circling the whole plate and has thinner typeface. Iranian registration plates' size are to European standards. Japanese vehicle registration plates fall into two classes: Prefectural, used nationwide, and Municipal. Municipal registration is typically applicable to motor vehicles that will not leave the area, such as light motorcycles. In the prefectural system, the top line names the office at which the vehicle is registered, and includes a numeric code that indicates the class of vehicle. The bottom contains one serial letter (typically a