All states have traffic laws that require motor vehicles on public highways, streets, roads, and driveways to have a rear license plate or tag—and most states also require a license plate on the front of a motor vehicle.

States usually require the license plates or vehicle registration to be renewed periodically—often annually and in connection with payment of a motor vehicle tax or inspection of the vehicle for safety and compliance with emissions standards.

In some states tickets or citations for no front or rear license plate or for expired plates/tags on your vehicle are known as fix-it tickets and the ticket or citation will indicate that it is a correctable violation of traffic laws. If you fix the missing-or-expired license plate problem within the required period and get the signature of an authorized person (a local police officer) the court may dismiss the ticket.

But if you fail to fix the missing-or-expired-tags problem within the required period you must pay the fine for the violation and you may be issued another ticket that will be part of your driving record. And if you fail to pay the ticket or appear in court on the hearing date the court may issue a warrant for your arrest.

In New Hampshire (NH), motor vehicles are required to display a rear license plate, and unlike some states, NH does not require a front license plate. License plates and vehicle registrations must be renewed periodically, with the renewal cycle typically being annually. This process often involves payment of a motor vehicle tax and may include a vehicle safety inspection and emissions testing. If a driver in NH is cited for not having a rear license plate or for having expired tags, it may be considered a 'fix-it' ticket. This type of ticket allows the driver to correct the issue within a specified period and have the ticket signed off by an authorized person, such as a local police officer, which can lead to the dismissal of the ticket by the court. However, failure to correct the issue within the required period or to pay the fine can result in additional penalties, including the issuance of another ticket that affects the driver's record. Non-compliance with paying the ticket or failing to appear in court can lead to a warrant for the driver's arrest.