A license plate is a metal or plastic tag attached to a vehicle, displaying a unique combination of letters and numbers. This combination serves as an identifier for the vehicle, allowing law enforcement and other authorities to track ownership and registration. License plates are typically issued by government agencies and vary by state or country. In many regions, license plates also include additional information, such as the state or province name, registration year, and sometimes even a slogan. Some vehicles may have specialized plates, like those for electric vehicles or veterans, which can signify particular attributes or affiliations.