Senior chief petty officer

Starfleet insignia

22nd century	2230s

2250s	2265-2270s	Early 2270s	Late 2270s-2350s

2350s-2360s	2360s-2370s service uniform	2360s-2370s duty uniform	2370s-2380s

Early 2380s	Mid 2380s	2390s
File:SCPO (early 2380s).png File:Red (early 2380s).png	File:SCPO (mid 2380s).png File:Red (mid 2380s).png	File:SCPO (2390s).png File:Red (2390s).png

Alternate realities

2250s	2380s-2400s	2390s	29th century

Non-Starfleet insignia

Lyran Starfleet

		Enlisted ranks					Etc	Officer ranks						Flag ranks
Starfleet Officers Enlisted Misc.		CR CA CN	PO3 PO2 PO1	CPO	SCPO	MCPO CMCPO FMCPO MCPOSF	WO CDT MID REC	ENS	LTJG	LT	LCDR	CDR	CAPT FCAPT	CDRE RDML RADM		VADM	ADM	FADM
Lyran ranks		CR CN	PO2 PO1	CPO	SCPO	MCPO	CDT	ENS	LTJG	LT	LCDR	CDR	CAPT FCAPT	CDRE	SCDRE	VADM	COUNT	DUKE KING
Kellarian System Defense Force (Navy & Ground forces) (Star Trek: Remington)		CR CN	PO2 PO1	CPO	SCPO	MCPO		ENS	SLT	LT	SCDR	CDR	CAPT	CDRE	VADM		ADM	FADM
		PVT PFC	CPL SGT	SSG	MSG	SGM		3LT	2LT	1LT	MAJ	LTCOL	COL	MGEN	LGEN		GEN	CGEN

External links

• Senior chief petty officer article at Memory Alpha, the canon Star Trek wiki.
• Senior chief petty officer article at Memory Beta, the non-canon Star Trek wiki.