In the United States and Canada, driver’s licenses are issued by the states and provinces (or territories), respectively, and do not look the same nationwide. They are also used as a de facto or government-issued identification document for the holder. The acronym DLN (frequently found on work applications) refers to Drivers License Number. Most government issuers of driver’s licenses also provide a government-issued identification card with similar attributes to a driver’s license to those residents within their jurisdictions who do not have or maintain a valid driver’s license, making it easier for them to do things such as open a bank account, and perform any other activities that require official identification. Identification cards serve as government-issued photo ID but do not enable a person to operate a motor vehicle, a fact typically noted on the ID via the phrase ‘Not a driver’s license’ or similar wording. This type of photo ID is referred to as a Photo card in some jurisdictions (for example, Ontario Photo Card). Government-issued ID cards are also issued to out-of-state residents e.g. college students enrolled in an institution of higher education outside their state of residence e.g. a domiciled Texas resident enrolled at UCLA where the individual retains their Texas driver license and holds a California state issued ID card (as mentioned above e.g. bank account and financial affairs); also applicable to those who own business assets and not domiciled in a state or city as a resident e.g. one domiciled in Los Angeles and owns either a business or real estate property in Florida). In the United States no individual can hold two valid driver licenses, e.g. a Texas and California driver license held simultaneously, since some U.S. states do not collect personal income taxes e.g. Texas and Florida while California has a personal state income tax
Many European countries require drivers to produce their permit on demand when driving. Some European countries require adults to carry proof of identity at all times, but a driving permit is not valid for identification in every European country.
In the United Kingdom most drivers are not required to carry their “Driving Licence“. A driver may be required by a constable or vehicle examiner to produce this, but may provide it at a specified police station within seven days the police issue a form for this purpose.
In Denmark, Finland, Norway, Spain and Sweden, the driving permit number is listed along with the bearer’s citizen’s ID number. Banks and public authorities use the same number for customer databases, making the license fully useful for identification purposes.