As used in this chapter:
(1)
(a) "911 ambulance services" means ambulance services rendered in response to a 911 call received by a designated dispatch center that receives 911 or E911 calls.
(b) "911 ambulance services" does not mean a seven or 10 digit telephone call received directly by an ambulance provider licensed under Title 53, Chapter 2d, Emergency Medical Services Act.
(2) "Municipality" means a city or town.
(3) "Political subdivision" means a county, city, town, special district, or special service district.