Commercial guide means a guide who operates a snowmobile or snowcoach for a fee or compensation and is authorized to operate in the park under a concession contract. In this section, "guide" also means "commercial guide."
Historic snowcoach means a Bombardier snowcoach manufactured in 1983 or earlier. Any other snowcoach is considered a non-historic snowcoach.
Oversnow route means that portion of the unplowed roadway located between the road shoulders and designated by snow poles or other poles, ropes, fencing, or signs erected to regulate oversnow activity. Oversnow routes include pullouts or parking areas that are groomed or marked similarly to roadways and are adjacent to designated oversnow routes. An oversnow route may also be distinguished by the interior boundaries of the berm created by the packing and grooming of the unplowed roadway. The only motorized vehicles permitted on oversnow routes are oversnow vehicles.
Oversnow vehicle means a snowmobile, snowcoach, or other motorized vehicle that is intended for travel primarily on snow and has been authorized by the Superintendent to operate in the park. An oversnow vehicle that does not meet the definition of a snowcoach must comply with all requirements applicable to snowmobiles.
Snowcoach means a self-propelled mass transit vehicle intended for travel on snow, having a curb weight of over 1,000 pounds (450 kilograms), driven by a track or tracks and steered by skis or tracks, and having a capacity of at least 8 passengers. A snowcoach has a maximum size of 102 inches wide, plus tracks (not to exceed 110 inches overall); a maximum length of 35 feet; and a Gross Vehicle Weight Rating (GVWR) not exceeding 25,000 pounds.
Snowmobile means a self-propelled vehicle intended for travel on snow, with a curb weight of not more than 1,000 pounds (450 kg), driven by a track or tracks in contact with the snow, and which may be steered by a ski or skis in contact with the snow.
Snowplane means a self-propelled vehicle intended for oversnow travel and driven by an air-displacing propeller.
36 C.F.R. §7.21