The rating of Chief petty officer was the highest enlisted rating in Starfleet. The chief petty officer, invariably referred to as chief, was a senior non-commissioned officer and is often in control of an entire section of petty officers and unrated enlisted personnel.
- The term "chief petty officer" is deduced from real-world naval nomenclature; it is not used in canon Trek, only the word "chief".
Chiefs are further subdivided into a series of ranks based on seniority and merit. These ranks, from lower to higher are as follows: chief, senior chief, and master chief.
While chiefs are subordinate to all commissioned officers, intelligent ensigns or lieutenants will listen to their chiefs, as these non-commissioned officers frequently have far greater experience than the junior officers under whom they serve. Even senior officers recognize the value of a good chief petty officer and will take their suggestions and advice seriously.
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- CPO Jamar Tambu
Enlisted ranks | Non-commissioned officer ranks | Etc | Commissioned ranks | Flag ranks | |||||||||||||||||
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E1 | E2 | E3 | E4 | E5 | E6 | E7 | E8 | E9 | O1 | O2 | O3 | O4 | O5 | O6 | O7 | O8 | O9 | O10 | O11 | ||
Starfleet | CR | CA | CN | PO3 | PO2 | PO1 | CPO | SCPO | MCPO CMCPO FMCPO MCPOSF |
WO
CDT MID REC |
ENS | LTJG | LT | LCDR | CDR | CAPT
FCAPT DDIR |
COMM | RADM | VADM | ADM | FADM |
Federation Marine Corps | Pvt | PFC | LCpl | Cpl | Sgt | SSgt | GySgt | MSgt 1st Sgt |
MGySgt SgtMaj SMOMC |
WO
Cdt |
2nd Lt | 1st Lt | Capt | Maj | LtCol | Col | BGen | MajGen | LtGen | Gen | GenCorps
|
Klingon ground troops | Bekk2 | Bekk1 | Cpl | Sgt | MSgt | SgtMaj | 2nd Lt | 1st Lt | Capt | Maj | LtCol | Col | Brig | LtGen | Gen | ||||||
Klingon navy | PO2 | PO1 | CPO | MCPO | ENS | LTJG | LT | LCDR | CDR | CAPT | RADM | VADM | ADM | ||||||||
Romulan Star Navy | UHL | (unknown) | SLt | Lt | Cent | SCdr | Cdr | Adm | |||||||||||||
Tal Shiar | 2nd Lt | 1st Lt | Capt | Maj | Col | Gen |