Specialty Vehicle Registrations

Most of what we cover under vehicle registration applies to passenger cars and light trucks. Trailers, motorhomes, mopeds, ATVs, and boats follow related-but-different rules — and in some states they're handled by an entirely different agency.

The patterns to know: anything with a license plate that travels on public roads is registered by your DMV; anything off-highway is usually handled by your state's parks, wildlife, or recreation agency; and boats are almost always handled by a state boating agency that's separate from both. Sometimes those agencies share a database, and sometimes they don't, which is why specialty registrations are a common source of unexpected paperwork.

Trailers

Almost every utility trailer over a certain weight (typically 3,000 pounds, sometimes 1,500) requires a title and a registration plate, just like a vehicle. The major exceptions are small unloaded utility trailers under the threshold, which some states exempt. Travel trailers, fifth wheels, and toy haulers are titled and registered as RVs in their own right; they don't borrow registration from the towing vehicle.

For trailers, expect a title fee comparable to a passenger vehicle, a much smaller annual registration fee, and an inspection of the trailer's lights and brakes if the state requires it. Used trailers commonly come with title problems — they're easy to "title jump" — so verify before you buy.

Motorhomes and RVs

A self-propelled motorhome is registered as a passenger vehicle in most states, often with a separate fee schedule that scales with weight class (Class A, B, or C). Some states impose a recreational-vehicle property tax in addition to the registration fee. Drivers of larger motorhomes (typically over 26,001 pounds GVWR) may need a non-commercial Class B or A license in some states — California, Texas, Pennsylvania, Wisconsin, North Carolina, and South Carolina notably enforce this.

Motorcycles and mopeds

Motorcycles are registered just like cars, with their own plate format and a slightly lower fee. Mopeds and motor-driven cycles fall into a gray area: in most states a 50cc-and-under moped is registered as a moped (a separate, cheaper class) and is exempt from full motorcycle registration; above 50cc it's registered as a motorcycle. The threshold for "moped" is set differently in different states — sometimes by engine displacement, sometimes by maximum speed (typically 30 or 35 mph), sometimes both.

For licensing, see motorcycle license.

ATVs, UTVs, and off-highway vehicles

Off-highway vehicles are titled and registered through a separate process, usually administered by a state parks or natural-resources agency. The registration buys a "green sticker" or "OHV decal" that authorizes the vehicle on public off-highway lands. ATVs are usually not street-legal; some states allow limited on-highway use under specific conditions (rural agricultural use, county-permitted streets), but the default is off-road only.

Boats

Boats are registered through your state's wildlife or boating agency, not the DMV. Most motorized boats and any vessel over a state-defined length must be registered, with a hull-identification number etched on the transom. The boat itself displays a registration number painted on the bow. Trailered boats sometimes require both a boat registration and a separate trailer registration. See our boating license page for the operator credential, which is a different document.

Antique and classic vehicles

Most states issue a discounted or special "antique," "classic," or "historic" plate for vehicles over 25 or 30 years old that are used primarily for shows, parades, and limited recreational driving rather than as a daily commuter. The registration is cheaper, the renewal is sometimes a one-time fee for life, and the plate often features a state-specific design. Restrictions vary — daily-driver use is typically not allowed under historic registration.

Official sources