The state Motor Vehicle Commission is answering this question: What comes after ZZZ?
With the current New Jersey number plate format running out of combinations that begin with three letters, the MVC has begun making license plates that will begin with one letter and two numbers, followed by three letters.
The last number plate number in the former sequence is ZZZ 99Z.
This is being followed by A10 AAA.
The new sequence will be used for about 25 million combinations and will last for about 20 years, according to MVC Commission spokesperson Sandy Grossman.
Some agencies already have the fresh batch, beginning with A10.
The agency formerly known as the Department of Motor Vehicles began a new system in 1967, beginning with AAA 100 through ZZZ 999, according to Grossman.
In 1974, it reversed the pattern, beginning with 100 AAA through 999 ZZZ.

Jon Cherry is a Director of leading personalised number plate dealer Regplates.com. Jon has over 25 years industry experience handling some of the most expensive plates ever sold with many high profile and celebrity clients. Active since 1991 in the number plate industry, Jon is currently Chairman of the Cherished Numbers Guild, a trade body representing number plate dealers in the UK. Jon has written many articles on the industry and insight into the future of numberplates and the market as a whole.