A silver oak leaf with a blue “A” is the insignia for a Coast Guard Auxiliary Division Commander (DCDR). Although not a military organization, the Auxiliary’s insignia system is inspired by the insignias of grade (O-1 to O-10) used by the U.S. Armed Forces; a silver oak leaf is worn by Officers in the O-5 grade (Commander in seagoing forces, Lt. Colonel in ground services). The blue “A” is an indication that the wearer is in an elected office rather than appointed position.
This coat rank device is worn on the epaulettes of the Trench Coat, Windbreaker, and Raincoat, with the stem of the oak leak facing toward and 3/4-inch from the epaulette’s shoulder seam. This insignia is worn only by Division Commanders; in contrast, the same insignia but with a red “A” is worn by no less than four officials.