A driver's license is an official document permitting a specific individual to operate one or more types of motorized vehicles, such as a motorcycle, car, truck, or bus on a public road. The laws relating to the licensing of drivers vary between jurisdictions. In some jurisdictions, a license is issued after the recipient has passed a driving test, while in others, a person acquires a license before beginning to drive. Different categories of license often exist for different types of motor vehicles, particularly large trucks and passenger vehicles. The difficulty of the driving test varies considerably between jurisdictions, as do factors such as age and the required level of practice.
The term driver's license is American English; the Canadian English equivalent is driver's licence, and in British English it is driving licence.
Karl Benz, inventor of the modern automobile, had to receive written permission from the Grand Ducal authorities to operate his car on public roads in 1888 after residents complained about the noise and smell of his Motorwagen. Up until the start of the 20th century, European authorities issued licenses to drive motor vehicles similarly ad hoc, if at all.
Mandatory licensing for drivers came into force on 1 January 1904 after the Motor Car Act 1903 received royal assent in the United Kingdom. Every car owner had to register their vehicle with their local government authority and be able to prove registration of their vehicle on request. The minimum qualifying age was set at 17. The license gave its holder 'freedom of the road' with a maximum 20 mph (32 km/h) speed limit. Compulsory testing was introduced in 1934, with the passing of the Road Traffic Act.