
Several states, particularly those with higher populations, use seven-character formats of three letters and four digits, including 1ABC234 in California and ABC-1234 (with or without a space or dash) in Georgia, Michigan, Mississippi, New York, North Carolina, Ohio, Pennsylvania, Tennessee, Texas, Virginia, Washington, and Wisconsin. For example, Delaware is able to use six-digit all-numeric serials because of its low population.

Nevada issues three letter and three number plates vehicles sold through dealers that require a new plate.Nebraska uses sequential-issuance three-letter, three-number plates for its most populous counties and county-coded plates for the rest of the counties consisting of 1 or 2 letters and up to 5 numbers.Maine uses a varying number of digits, but most Maine plates consist of four digits and two letters.The most common issue consists of four letters and two digits, but alternate standard issues contain four digits and two letters.

