As used in this part, unless the context otherwise requires:
(1) “Compensation” shall not be construed to include the reimbursement of the actual expenses, exclusive of salaries, of any person rendering emergency care, assistance or advice;
(2) “Hazardous materials” includes: Materials designated as hazardous by any governmental agency; or
(3) Materials where the fire or explosion of or spillage, seepage or other discharge or release or possibility thereof creates a hazard to person, property or the environment; and
(4) “Person” includes any individual, partnership, corporation, association or other entity.