(1) Except as provided in (a) through (d), ambulance services shall adhere to the minimum staffing requirements set forth in Table 1 of the Emergency Medical Services Rule Appendix when responding to a request for service that has not been medically triaged: 

(a) An ambulance service medical director may authorize a process for medical evaluation of a patient and the use of a basic life support crew configuration if that configuration meets the clinical needs of the patient.

(b) During periods of extraordinary call volume, a service licensed at the advanced life support level of service may temporarily utilize a crew configuration equal to the minimum staffing standard for a service licensed at the basic life support level of service.

(c) During inter-facility transfers by air ambulance, the service medical director may alter the crew configuration to match the medical needs of the patient, so long as one of the personnel is an ECP, a physician, or a physician assistant.

(d) An air ambulance may transport a patient with only one ECP crew member in addition to the pilot when advisable for weather, weight, or other extenuating circumstances on a case-by-case basis.