Newsclippings
The Department of the Army approved the Expert Field Medical Badge (EFMB), a special skill award for recognition of exceptional competence and outstanding performance by field medical personnel, on 18 June 1965.
Personnel eligible to earn the EFMB include all officers assigned or detailed to an Army Medical Department (AMEDD) Corps, Army officers in training at the Uniformed Services University of the Health Sciences, Army officers enrolled in the Health Professions Scholarship Program, Warrant Officers who have an AMEDD primary military occupational specialty (MOS) controlled by the Surgeon General, Warrant Officer pilots that have a special qualification identifier "D" (Aeromedical Evacuation Pilot) and are assigned to an air ambulance unit, and Enlisted personnel who have an MOS in the 68- Career Management Field (CMF) as well as an AMEDD primary MOS, MOS18D, or 38BW4. (from https://medcoe.army.mil/efmb)