Any ski area operator is liable for loss or damages caused by its failure to follow the duties set forth in sections 53-09-03 and 53-09-04 when the violation of duty is causally related to loss or damage suffered. A ski area operator is not liable to any passenger or skier acting in violation of the passenger's or skier's duties as set forth in sections 53-09-05 and 53-09-06, when the violation of duty by the passenger or skier is causally related to the loss or damage suffered; nor is a ski area operator liable for any loss or damage caused by any object dropped, thrown, or expelled by a passenger from an aerial passenger tramway.
N.D.C.C. § 53-09-07