A valid vehicle licence is required by law in some countries to be displayed on any registered motor vehicle if it is to be used or kept on a public road. Vehicle licensing is different from vehicle registration and roadworthiness certification.
In some countries, such as Norway, the owner annually used to get a sticker to place on the registration plate, if the vehicle is permitted for driving. In the United States and Canada, an annual or biennial sticker is usually applied to the plate, with a few exceptions. For example, the District of Columbia and a few U.S. states use windscreen stickers, and some U.S. and Canadian jurisdictions issue permanent fleet licence plates. Also, some U.S. states, such as Virginia, require that a motorist obtain a vehicle licence from the city, county, or town government in addition to registering the vehicle with the appropriate agency of the state government. Some of these jurisdictions have done away with the sticker entirely in recent years, leaving registration status available only from a centralized database which authorities reference (by hand, or via automated number plate recognition).
In New South Wales from 1 January 2013, all light vehicles in NSW no longer need a registration sticker. If a vehicle registration is due after 1 January 2013, a sticker will not be issued as it is not required.
In the United Kingdom, until October 2014, the vehicle licence, colloquially known as a tax disc, came in the form of a paper disc 75 millimeters in diameter to be displayed on the inside of a vehicle's front windscreen, and was evidence that the necessary vehicle excise duty had been paid for the vehicle.
The vehicle excise duty was introduced in 1889, and between 1920 and 1 October 2014 had to be evidenced by the display of a paper disc inside the windscreen. From 1 October 2014 the physical paper disc was no longer issued, with enforcement of the taxation now being done through the automatic number plate recognition system.
In Germany, a driver is required to carry a vehicle licence (called the 'Fahrzeugschein') containing vehicle owner data, technical specifications and car modifications. Additionally, each car has two registration plate stickers, one to confirm the car has been properly registered and one to indicate it has passed its MOT test, as well as the date by which it has to have the next MOT test. While the vehicle licence and the registration sticker are permanent, the MOT sticker has to be renewed after a 1 to 3 year period, depending on the type and age of the vehicle.
In Ireland, a tax disc must also be displayed, which is of the same format as that in the UK. However, in addition, a square insurance 'disc' must also be displayed to show that the vehicle has the legally required third party insurance. Private cars over 4 years old require a similar format 'disc' from the National Car Test service to show roadworthiness.
In Malta, tax discs are very similar in appearance to their UK counterparts, and are also required to be visible on the left-hand side of the windscreen. The disc proves that the vehicle has valid insurance, and that it has passed its Vehicle Roadworthiness Test (VRT).
In Sri Lanka, a revenue licence must be displayed on the vehicle, and is evidence that the necessary vehicle excise duty has been paid for the specific vehicle. It is normally placed on the left side of the windscreen if it is a four wheeled vehicle. A revenue licence is issued for a period of one year and must be renewed annually, during which an emissions test must be performed.
- Velology – the collection of tax discs and their history and design.
- "NSW rego stickers to be taken off the road - ABC News (Australian Broadcasting Corporation)". Abc.net.au. 2012-05-24. Retrieved 2014-03-29.
- "No more rego stickers for light vehicles < Registration < Roads and Maritime Services". Rta.nsw.gov.au. Retrieved 2014-03-29.
- "End of the road for car registration stickers". The Australian. December 31, 2009.
- "Northern Territory Government - REGISTRATION STICKERS ARE UNSTUCK". Newsroom.nt.gov.au. Retrieved 2014-03-29.
- "End of Registration Labels". Rego.act.gov.au. Retrieved 2014-03-29.
- Steven Wardill (September 15, 2013). "Queensland registration stickers to be phased out by October, 2014". The Courier Mail.
- "Registration labels : VicRoads".
- Westcott, Richard (2013-12-05). "Car tax disc to be axed after 93 years". BBC News. BBC. Retrieved 2014-03-29.
- Car tax rules UK government webpage