(i) skier use;

(ii) weather variations including freezing and thawing; or

(iii) mechanical failure of snow grooming or emergency equipment which may position such equipment within the borders of a slope or trail. 7. To develop and maintain a written policy consistent with the regulations of the commissioner of labor upon the advice of the passenger tramway advisory council for situations involving the reckless conduct of skiers, which shall include, but not be limited to: a. a definition of reckless conduct; and b. procedures for approaching and warning skiers of reckless conduct and procedures for dealing with such skiers which may include the revocation of the lift tickets of such skiers. 8. To designate personnel to implement the ski area's policy on reckless conduct. 9. To report to the commissioner of labor by telephone within twenty-four hours any fatality or injury resulting in a fatality at the ski area. 10. To conspicuously post and maintain such ski area signage, including appropriate signage at the top of affected ski slopes and trails, notice of maintenance activities and for passenger tramways as shall be specified by the commissioner of labor pursuant to section two hundred two-c or eight hundred sixty-seven of the labor law. 11. To post in a conspicuous location at each lift line a sign, which shall indicate the degree of difficulty of trails served by that lift with signs as shall be specified by the commissioner of labor pursuant to section two hundred two-c or eight hundred sixty-seven of the labor law. 12. To ensure that lift towers located within the boundaries of any ski slope or trail are padded or otherwise protected and that no protruding metal or wood objects, such as ladders or steps, shall be installed on the uphill or side portion of lift towers within the borders of a ski slope or trail, unless such objects are below the snow line, at least six feet above it, or padded or otherwise protected with such devices as, but not limited to, the following: a. commercially available tower padding; b. air or foam filled bags; c. hay bales encased in a waterproof cover; or d. soft rope nets properly spaced from the tower. 13. To, within a reasonable amount of time after the inspection required by subdivision six of this section, conspicuously mark with such implements as may be specified by the commissioner of labor pursuant to section eight hundred sixty-seven of the labor law and to provide sufficient warning to skiers by such marking or remove such obstacles or hazards which are located within the boundaries of any ski slope or trail and were noted pursuant to paragraph c of subdivision six of this section; and to also conspicuously mark with such implements and provide such warning or remove such obstacles or hazards within a reasonable amount of time after receipt of notice by the ski area operator from any skier as to the presence of such obstacles or hazards when notice is given at sites designated by the ski area operator for such receipt and the locations of which are made known to skiers pursuant to paragraph c of subdivision five of this section. 14. To have present at all times when skiing activity is in progress, individuals properly and appropriately trained for the safe operation of on-slope vehicles; trail maintenance equipment; tramways; tramway evacuations; implementation of the reckless skier policy; first aid and outdoor rescue; and, to have present according to a schedule posted for access by skiers, by the ski area operator, personnel appropriately trained in the instruction of skiers and passengers in methods of risk reduction while using ski slopes and passenger tramways and the instruction of skiers with respect to the risks inherent in the sport.