A vehicle registration plate, also known as a number plate or license plate or licence plate, is a metal or plastic plate attached to a motor vehicle or trailer for official identification purposes. All countries require registration plates for road vehicles such as cars, trucks, and motorcycles. Whether they are required for other vehicles, such as bicycles, boats, or tractors, may vary by jurisdiction. The registration identifier is a numeric or alphanumeric ID that uniquely identifies the vehicle or vehicle owner within the issuing region's vehicle register. In some countries, the identifier is unique within the entire country, while in others it is unique within a state or province. Whether the identifier is associated with a vehicle or a person also varies by issuing agency. There are also electronic license plates.
Highways in Taiwan are classified into five types:
Motorized vehicles in Indonesia are required to have registration plates, which must be displayed both at the front and back of the vehicles. The issuing of number plates is regulated and administered by SAMSAT, which is a collaboration between the Indonesian National Police, provincial offices of regional revenue, and the national mandatory vehicle insurance operator Jasa Raharja.
The most common format for vehicle registration plates in Romania consists of black letters on white background in the format CC 12 ABC, where CC is a two letter county code, 12 is a two digit group, and ABC is a three letter group. For Bucharest, the format is B 12 ABC or B 123 ABC, where B is code for Bucharest city, 12 and 123 is a two or three digit group, and ABC is a three letter group. The left side of the plate bears a blue vertical strip displaying the 12 stars of the European Union and the country code of Romania (RO). Between 1992-2007 the band featured the Romanian flag instead of the 12 stars. All lettering comes from the Latin alphabet.
In the United States, vehicle registration plates, known as license plates, are issued by a department of motor vehicles, an agency of the state or territorial government, or in the case of the District of Columbia, the district government. Some Native American tribes also issue plates. The U.S. federal government issues plates only for its own vehicle fleet and for vehicles owned by foreign diplomats. Until the 1980s, diplomatic plates were issued by the state in which the consulate or embassy was located.
Argentine license plates are used to uniquely identify motor vehicles on the roads of Argentina. The current system employs three letters followed by three digits, issued consecutively, but the license plate system underwent significant changes before the use of this format.
Vehicle registration plates are the mandatory number plates used to display the registration mark of a vehicle, and have existed in Russia for many decades. Most motor vehicles which are used on public roads are required by law to display them. Having a number plate obstructed by snow, mud, paper, or any other tool that makes any of the digits and letters illegible is considered an administrative offense and results in a fine.
Slovenian car number plates are vehicle registration plates found on Slovenian cars. The code for Slovenia itself is SLO. The registration plates are made of metal. On the left there is a blue bar as in other EU countries along with tamper-proof text up to 2008; the text is in black letters on a white background in Helvetica typeface. In 2008 the plates reverted to a green border used before 2004 and the old font but retaining the EU border at the left. Two plates must be present on each car - one at the front and one at the rear. In the case of motorcycles, only one plate is needed on the back of the vehicle. These plates can have different sizes, being the regional code in the first line, at the top.
License plates of Honduras are issued by the Honduran Secretaría de Obras Públicas, Transporte y Vivienda and identify motor vehicles in the country.
Vehicle registration plates of Canada, also known as licence plates, are issued by provincial or territorial government agencies. Registration plates in Canada are typically attached to motor vehicles or trailers for official identification purposes. Some Canadian registration plates have unique designs, shapes, and slogans related to the issuing jurisdiction. For example, registration plates issued in the Northwest Territories are shaped like a polar bear. In Alberta, registration plates typically display the words "Wild Rose Country."
In the United States, the appearance of license plates is frequently chosen to contain symbols, colors, or slogans associated with the issuing jurisdiction, which are the 50 U.S. states, the District of Columbia, the five inhabited U.S. territories, and Native American tribes, each of which independently registers motor vehicles. Regular-issue license plates for passenger vehicles typically have six or seven characters, with vanity plates having up to eight characters in a few states.
The vehicle registration plates of Cyprus are composed of three letters and three digits. A simple incremental numbering system is used; numbers run from 001 to 999 per letter sequence (alphabetic), so that, for example, the plate to be issued after MAA 999 would be MAB 001. However, registrants may be allowed to choose a number from available numbers in the extant letter sequence.
The Convention on Road Traffic, commonly known as the Geneva Convention on Road Traffic, is an international treaty promoting the development and safety of international road traffic by establishing certain uniform rules among the contracting parties. The convention addresses minimum mechanical and safety equipment needed to be on board and defines an identification mark to identify the origin of the vehicle. The Convention was prepared and opened for signature by the United Nations Conference on Road and Motor Transport held at Geneva from 23 August to 19 September 1949. It came into force on 26 March 1952. This conference also produced the Protocol on Road Signs and Signals.
Vehicle registration plates in Trinidad and Tobago are categorised using prefixes based on the type of vehicle and feature up to four succeeding digits. Registration plates in Trinidad and Tobago are supposed to be either white figures on a black background or black figures on a white background. All motor vehicles that are operating in the roads of Trinidad and Tobago are required by law to have a registration plate affixed to the front and rear of the vehicle at all times except during very specific situations. This current system has been present for over 40 years.
Egyptian vehicle registration number plates are used for official identification purposes for motor vehicles in Egypt. The international vehicle registration code for Egypt is ET.
In Bangladesh, the Bangladesh Road Transport Authority (BRTA) issues vehicle registration plates for motor vehicles. The vehicle registration plates in Bangladesh use the Bengali alphabet and Bengali numerals. They are produced by Bangladesh Machine Tools Factory, located in Gazipur. The current version of vehicle registration plates started in 1973, and the current digital number plates have been in use since 2012. The international vehicle registration code for Bangladesh is BD.
Syria requires its residents to register their motor vehicles and display vehicle registration plates. Since the start of the Syrian civil war in 2011 and the fragmentation of control and governance in the Syrian territory, there has been parallel license plate formats introduced in various regions of Syria by the de facto rulers.
Vehicle registration plates are the alphanumeric plates used to display the registration mark of a vehicle, and have existed in the United Kingdom since 1904. It is compulsory for motor vehicles used on public roads to display vehicle registration plates, with the exception of vehicles of the reigning monarch used on official business.
Vehicle registration plates, commonly known as number plates, are the mandatory alphanumeric or numeric plates used to display the registration mark of a vehicle.
Vehicle registration plates, commonly referred to as number plates, are the mandatory numeric or alphanumeric plates used to display the registration mark of a vehicle. The Crown dependency of Guernsey is outside the United Kingdom and the European Union, and its islands have registration marks that are different from those used in the UK. The international vehicle registration code for Guernsey is GBG.
Republic of China (Taiwan) 
