048-2 Wyo. Code R. § 2-2
An ambulance service business license shall not be required for:
(a) The United States or an agency or political subdivision of the State of Wyoming;
(b) An industrial ambulance, except for annual reporting requirements;
(c) An individual operating a search and rescue vehicle;
(d) A person operating a volunteer ambulance service in an ambulance area in which no other ambulance services meeting the requirements of the Act are located;
(e) A person using a vehicle rendering service as an ambulance in the case of a major catastrophe or emergency when licensed ambulances based in the locality of the catastrophe or emergency are incapable of rendering the services required;
(f) A person using a privately owned vehicle or aircraft not designated as an ambulance and not ordinarily used in transporting patients, while operating under the provisions of W.S. 33-28-103 in the performance of a life-saving act; or
(g) A person operating an ambulance service based outside of Wyoming, except that any ambulance service receiving a patient within this state shall be required to obtain an ambulance business license. The Division shall grant a license to an ambulance service based in another state whose licensing requirements insure that the purpose of W.S. W.S. W.S. 33-38-101, et seq and these rules are met.
048-2 Wyo. Code R. § 2-2