According to the most recent posting on the official Air War College webpage, "The AWC resident program class membership includes senior officers in the ranks of Lieutenant Colonel (O-5) and Colonel (O-6), or, in the case of the U.S. Navy and U.S. Coast Guard, Commander (O-5) and Captain (O-6), from each U.S. military service (both Active Component and Reserve Component, the latter to include the Army National Guard and the Air National Guard). AWC students also include civilian employees of federal government agencies at the grades GS-14/GM-14 or GS-15/GM-15, and equivalent rank military officers from the international community of nations."