Senior chief petty officer

Starfleet insigniaEdit

22nd century	2230s

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

2350s-2360s	2360s-2370s service uniform^[1]	2360s-2370s duty uniform^[1]	2373-2380s

2380s	2390s
File:SCPO (2380s).png File:Red (2380s).png	File:SCPO (2390s).png File:Red (2390s).png

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

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

↑ ^1.0 ^1.1 Up until the introduction of specialized insignia in 2372, chief petty officers wore one hollow pip.

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.