Massachusetts General Laws Part III. Courts, Judicial Officers and Proceedings in Civil Cases (Ch. 211-262) Ch. 231, § 85I

No member of a ski patrol duly registered in the National Ski Patrol system, who, in good faith, renders emergency care or treatment to a person who has become injured or incapacitated at a place or in an area where an emergency rescue can be best accomplished by the members of such a ski patrol together with their special equipment, shall be liable in a suit for damages as a result of his acts or omissions, either for such care or treatment or as a result of providing emergency transportation to a place of safety, nor shall he be liable to a hospital for its expenses if, under such emergency conditions, he causes the admission of such injured or incapacitated person.