As used in 75-10-717 and this section, the following definitions apply:
(1) "Emergency responder" means a public safety agency or a private entity acting under a request from or authority granted by a government agency, including law enforcement, firefighting, ambulance or medical, and civil defense, that provides services in an emergency situation.
(2) "Hazardous material incident" means a release involving a hazardous or deleterious substance that endangers property, public health, or public safety.