According to Utah law, an OHV is any of the following.
- An all-terrain type I vehicle (Type I ATV) is any motor vehicle designed for or capable of travel over unimproved terrain that is 50 inches or less in width, weighs 800 pounds or less, has three or more low-pressure tires, and has a seat designed to be straddled by the operator.
- An off-highway motorcycle (OHM) is every motor vehicle that has a saddle for the operator's seat and is designed to travel on no more than two tires.
- A snowmobile is any motor vehicle designed for travel on snow or ice that is steered and is supported entirely or partially by skis, belts, cleats, runners, or low-pressure tires.
- An all-terrain type II vehicle (Type II ATV) is any motor vehicle other than the above designed for or capable of travel over unimproved terrain, such as rhinos, dune buggies, sand rails, etc., and excluding golf carts, vehicles designed to carry disabled persons, farm tractors, and vehicles not designed specifically for recreational use.