There’s no federal road tax, although all states levy an annual registration fee, which varies considerably from state to state.
Motor vehicle registration rules and fees vary from state to state. The registration fee may be a flat fee or be based on a vehicles weight, age or value (or a combination). Upon registration, you’re issued with one (affixed to the rear of a vehicle) or two licence plates, the expiry date (month/year) of which is shown on the rear plate. A variety of personalised plates are available in most states (for an extra cost) and all states provide special plates for the disabled (a medical certificate is required).
Registration fees are usually paid annually, on a fixed date for all owners, or more often staggered, often based on your birthday or the first letter of your family name. There are usually penalties for late renewal and you can be arrested for displaying an out of date (dead) plate, although some states allow a grace period. Registration is validated by a sticker affixed to the rear registration plate. Duplicate plates and registration papers are available for a small fee.
http://www.truckinfo.net/trucking/li...-per-state.htm
http://www.justlanded.com/english/US...ving-in-the-US
http://www.worldlicenceplates.com/usa/US_XLPR.html