1. Description: This ribbon was authorized by the Chief of Staff, U.S. Air Force on Oct. 12, 1980. It is awarded to U.S. Air Force service members on completion of initial accession training after Aug. 14, 1974. In Dec 1986, the criteria expanded and authorized the ribbon to anyone who was on active duty in Dec 1986, regardless of when they completed initial accession training. The ribbon was designed by the Institute of Heraldry. The ribbon has a wide center stripe of red, flanked on either side by a wide stripe of dark blue and a narrow yellow stripe edged by a narrow dark blue stripe. Authorized Device: Oak Leaf Cluster.