[2] As of 2022[update], plates are issued by the Delaware Department of Transportation (DelDOT) through its Division of Motor Vehicles.

Authorized reproductions of porcelain enamel plates can be obtained through a private vendor,[3] provided they fall within the state's guidelines.

In 1956, the United States, Canada, and Mexico came to an agreement with the American Association of Motor Vehicle Administrators, the Automobile Manufacturers Association and the National Safety Council that standardized the size for license plates for vehicles (except those for motorcycles) at 6 inches (15 cm) in height by 12 inches (30 cm) in width, with standardized mounting holes.

The inherent scarcity of low-digit plates has spawned a vibrant secondary market for low numbers.

Delaware does not use leading zeros on its plates, so serials are composed of a variable number of digits.