MIL-I-17988/9 Complete Document History
Insignia: Cap and Hat Commissioned Officer/Commissioned Warrant Officer (U.S. Coast Guard)

Complete Current Edition:
   REVISION C - INSIGNIA, CAP AND HAT COMMISSI - June 25, 1990
   REV C VALIDATION 1 - VALIDATION NOTICE 1 FOR REVISION C - March 31, 2023

Obsolete Revision Information:
   REVISION B - INSIGNIA, CAP AND HAT COMMISSI - Feb. 7, 1985