20 CFR § 404.1323
Post-World War II service excluded
February 18, 2021
Your service was not in the active service of the United States during the post-World War II period if, for example, you were in the—
(a) Coast Guard Auxiliary;
(b) Coast Guard Reserve (Temporary) unless you served on active full-time service with military pay and allowances;
(c) Civil Air Patrol; or
(d) Civilian Auxiliary to the Military Police.