For easier reading, we may use three-letter acronyms to refer to vehicles.
- ATV: All-Terrain Vehicle. A type of off-road vehicle with low-pressure, knobby tires designed for riding on unpaved surfaces. ATVs typically have four wheels. Three-wheeled ATVs are illegal in many states.
- OHM: Off-Highway Motorcycle. A type of motorcycle equipped for certain off-road sports. These motorcycles may or may not be “street-legal.”
- UTV: Utility Terrain Vehicle. A type of off-road vehicle where the driver and a passenger can sit side-by-side in the vehicle. They are most commonly known as UTVs (Utility Terrain Vehicle, Utility Task Vehicle, or just Utility Vehicle) or Side-by-Side Vehicles. UTVs are not designed for use on paved surfaces.
The general information in this course applies to all types of off-road vehicles. Much of the specific information, however, applies primarily to ATVs and OHMs.