An emergency medical service that is staffed primarily by volunteer emergency care providers may staff an ambulance with one emergency care provider licensed at an emergency medical technician-basic level or higher and one driver trained in the operation of emergency vehicles for the following types of responses:
(1) nonemergency ambulance transports;
(2) emergency medical service provided by an ambulance company located in a county with a population of fewer than 20,000 residents; and
(3) emergency medical service provided by an ambulance company located in a county with a population of 20,000 residents or more if the ambulance company is transporting a patient from a community within that county that has a population of 1,500 residents or less to the nearest health care facility that is able to meet the patient's medical needs.