In addition to the regular branches of military service (Air Force, Army, Coast Guard, Marine Corps, and Navy), the following groups may be certified as active military service for benefits:
- Women Air Force Service Pilots
- WWI Signal Corps Female Telephone Operators
- WWI Engineer Field Clerks
- Women’s Army Auxiliary Corps
- WWI Quartermaster Corps female clerical employees serving with the American Expeditionary Forces
- WWII Civilian employees Pacific naval air bases who actively participated in defense of Wake Island
- WWI Reconstruction aides and dietitians
- Male civilian ferry pilots
- Wake Island defenders from Guam
- Civilian personnel assigned to OSS secret intelligence
- Guam Combat Patrol
- WWII Quartermaster Corps members of the Keswick crew on Corregidor
- US civilians in defense of Bataan
- WWII US merchant seamen on block ships for Operation Mulberry -invasion of Normandy
- WWII American Merchant Marines in oceangoing service
- WWII Civilian Navy IFF radar technicians in Pacific who served in combat areas
- US civilians of the American Field Service who served overseas
- WWII American Field Service who served overseas under US armies or groups
- US civilian employees of American Airlines who served overseas in a contract with the Air Transport Command between Dec.14,1941, and Aug 14, 1945
- Civilian crewmen of US Coast and Geodetic Survey vessels who served in areas of immediate military hazard during Dec 7, 1941,and Aug 15, 1945. Certain vessels qualify.
- Members of the American Volunteer Group (Flying Tigers) serving between Dec 7, 1941, and July 18,1942
- US civilian employees of United Air Lines who served overseas in a contract with the Air Transport Command between Dec.14,1941, and Aug 14, 1945
- US civilian employees of Transcontinental and Western Air, INC who served overseas in a contract with the Air Transport Command between Dec.14,1941, and Aug 14, 1945
- US civilian employees of Consolidated Vultee Aircraft Corp who served overseas in a contract with the Air Transport Command between Dec.14,1941, and Aug 14, 1945
- US civilian employees of Pan American World Airways who served overseas in a contract with the Air Transport Command between Dec.14,1941, and Aug 14, 1945
- Honorary discharged members of the American Volunteer Guard, Eritrea Service Command, between June 21, 1942, and March 31, 1943
- US civilian employees of Northwest Airlines who served overseas in a contract with the Air Transport Command between Dec.14,1941, and Aug 14, 1945
- US civilian female employees of the US Army Nurse Corps who served in defense of Bataan and Corregidor between Jan. 2, 1942, and Feb 3, 1945
- US civilian employees of Northeast Airlines who served overseas in a contract with the Air Transport Command between Dec.7,1941, and Aug 14, 1945
- US civilian employees of Braniff Airways who served overseas in a contract with the Air Transport Command between Feb 26, 1945, and Aug 14, 1945
- Chamorro and Carolina former native police who received military training in the Donnal area of central Saipan under the command of Lt. Casino of the 6th Provisional Military Police Battalion From Aug 19, 1945, to Sept 2, 1945
- Specifically named Scouts
- The operational Analysis Group of the Office of Scientific Research and Development, Office of Emergency Management which served overseas with the US Army Air Corps from Dec 7, 1941, through Aug 15, 1945
- Service as a member of the Alaska Territorial Guard during WWII or any individual who was honorably discharged under Sec 8147 of the Dept of Defense Appropriations Act of 2001.
