United States Amy Rank Abbreviations and Acronyms

1. CGMA
   CHIEF GUNNER'S MATE (AVIATION)
2. CGMT
   CHIEF GUNNER'S MATE (TORPEDO)
3. CH
   COAL HEAVER
4. CI
   Cook Islands
5. CK
   Cook Islands
6. CK1
   COOK PETTY OFFICER FIRST CLASS
7. CK2
   COOK PETTY OFFICER SECOND CLASS
8. CK3
   COOK PETTY OFFICER THIRD CLASS
9. CKCC
   COOK TO COMMANDER-IN-CHIEF
10. CL
    Class
11. CM
    Chief Metalsmith
12. CM1
    CARPENTER'S MATE FIRST CLASS
13. CM1
    CONSTRUCTION MECHANIC PETTY OFFICER 1ST CLASS
14. CM2
    CARPENTER'S MATE SECOND CLASS
15. CM2
    MECHANIC PETTY OFFICER 2ND CLASS
16. CM3
    MECHANIC PETTY OFFICER 3RD CLASS
17. CM3
    CARPENTER'S MATE THIRD CLASS
18. CMA3
    CONSTRUCTION MECHANIC (AUTOMOTIVE) PETTY OFFICER THIRD CLASS
19. CMA3
    CARPENTER'S MATE (AVIATION) PETTY OFFICER THIRD CLASS
20. CMAA
    Chief Master At Arms

Last updated: May 24, 2020 — Total entries: 3,362