For purposes of this chapter:
(1) “Fire department” means any organization that is staffed twenty-four (24) hours a day and established for the prevention or extinguishment of fires, including, but not limited to, fire departments organized under municipal or county ordinances, improvement districts, membership fee-based private fire departments, and volunteer fire departments;
(2) “Law enforcement agency” means any police force or organization whose primary responsibility as established by law or ordinance is the enforcement of the criminal, traffic, or highway laws of this state as defined in § 12-9-301 and that is staffed twenty-four (24) hours a day; and
(3) “Medical provider” means any emergency department of a hospital licensed under § 20-9-214.