§ 53-09-03 — Duties of ski operators with respect to ski areas

Every ski operator shall have the following duties with respect to its operation of a skiing
area:
1. To mark all trail maintenance vehicles and to furnish such vehicles with flashing or
rotating lights which must be in operation whenever the vehicles are working or are in
movement in the skiing area.
2. To mark with a visible sign or other warning implement the location of any hydrant or
similar equipment used in snowmaking operations and located on ski slopes and trails.
3. To mark conspicuously the top or entrance to each slope, trail, or area with the
appropriate symbol for its relative degree of difficulty and those slopes, trails, or areas
which are closed, or portions of which present an unusual obstacle, must be marked at
the top or entrance with appropriate symbols.
4. To maintain one or more trail boards at prominent locations at each ski area displaying
that area's network of ski trails and slopes with each trail and slope rated thereon in
accordance with the symbols provided for in subsection 3.
5. To designate by trail board or other means which trails or slopes are open or closed.
6. To place, or cause to be placed, whenever snow grooming or snowmaking operations
are being undertaken upon any trail or slope while such trail or slope is open to the
public, a conspicuous notice to that effect at or near the top of such trail or slope.
7. To post notice, at or near the boarding area for each aerial passenger tramway
designed to transport passengers with skis attached to boots, of the requirements of

this chapter concerning the use of ski retention devices. This obligation is the sole
requirement imposed upon the ski area operator regarding the requirement for or use
of ski retention devices.