"Military or naval service of the U.S." includes the following:
Service as a member of a Regular or Reserve component of the U.S. Army, Air Force, Navy, Coast Guard, or Marine Corps;
Service as a commissioned officer of the Public Health Service or the National Oceanic and Atmospheric Administration; or
Service by a midshipman at the U.S. Naval Academy or a cadet at the U.S. Military, Air Force, or Coast Guard Academies.
Noncontributory wage credits are not granted for service with certain auxiliary organizations such as: the Coast Guard Auxiliary; the temporary Coast Guard Reserve (unless service was full-time duty with military pay and allowances); Civilian Auxiliary to the Military Police; and the Civil Air Patrol.
Last Revised: Jan. 20, 2006
Social Security Handbook