059-3 Wyo. Code R. § 3-8
(a) The requirement of registration is waived for any official of the United States Army, Navy, Marine Corps, Air Force, Coast Guard, or Public Health Service who is authorized to prescribe, dispense, or administer, but not to procure or purchase, controlled substances in the course of his official duties. Such officials when issuing a prescription shall state the branch of service or agency (e.g., "U. S. Army" or "Public Health Service") and the service identification number of the issuing official in lieu of the registration number required on prescription forms. The service identification number for a Public Health Service employee is his Social Security identification number.
(b) If any official exempted by this section also engages as a private individual in any activity or group of activities for which registration is required, such official shall obtain a registration for such private activities.
059-3 Wyo. Code R. § 3-8