Service: Air Force
Criteria: Exemplary conduct, efficiency and fidelity during three years of active enlisted service with the U.S. Air Force
Devices: Bronze, Silver Oak Leaf cluster
Authorized on June 1, 1963. Awarded to Air Force personnel in an enlisted status upon recommendation of the unit commander for exemplary conduct while in active military service on or after June 1, 1963 after three years of continuous service (1 year in wartime - this was rarely done).