 ACSC prepares field grade or equivalent level commissioned officers of all U.S. military services in pay grade O-4 (e.g., majors in the U.S. Air Force, U.S. Army and U.S. Marine Corps and lieutenant commanders in the U.S. Navy and U.S. Coast Guard, as well as major-selectees and lieutenant commander-selectees), equivalent rank international military officers, and U.S. Department of Defense and Department of the Air Force civil servants of at least GS-12/GM-12 level, to assume positions of higher responsibility within the military and other government organizations.Officers in pay grade O-4 and DoD/DAFC civilians in grades GS-12/GM-12 may also complete ACSC via distance learning options, either via a seminar program (if available) at an active USAF installation or via a correspondence course program in CD-ROM format.Successful completion of ACSC or an equivalent command and staff college of another service (e.g., United States Army Command & General Staff College; College of Naval Command and Staff curriculum of the U.S.