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Lieutenant junior grade

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Lieutenant, junior grade is a commissioned rank in Starfleet. They are commonly addressed as "Lieutenant."

This makes it difficult to distinguish which lieutenants are of which grade.

Lieutenant junior grade insigniaEdit

Starfleet lieutenant junior grade insignia
era general wear command division operations division sciences division
command tactical/military flight-engineering
(admin, pilot, engineer)
security special services sci-ops
(ops, sci & tac ops)
medical
Earth Starfleet ranks
(Built to Lieutenant)
Earth cmd lt Earth ops lt Earth sci lt
Federation Starfleet ranks (2160s)
(Built to Lieutenant)
Sec lt 2160s Cmd lt 2160s Eng-ops lt 2160s Sci lt 2160s
Federation Starfleet ranks (2230s)
(Built to Lieutenant)
2230s cmd lt 2230s yel lt 2230s gray lt
Federation Starfleet ranks (2240s)
(insignia for all officer grades)
2240s gray officer 2240s gold officer 2240s red officer 2240s coral officer 2240s blue officer
Federation Starfleet ranks (2250s)
(insignia for all officer grades)
Gray officer sleeve 2250s conn officer sleeve 2250s cmd green officer sleeve 2250s red ops sleeve 2250s ops officer sleeve 2250s sci officer sleeve
Federation Starfleet ranks (2260s) 2260s ltjg Yel Lt jg 2266 2260s cmd green ltjg Red Lt jg 2266 2260s cmd beige ltjg Blu Lt jg 2266
Federation Starfleet ranks (2270s)
(Built to Lieutenant)
2270s lt sleeve 2270s cmd lt 2270s helm lt 2270s eng lt 2270s sec lt 2270s sci lt 2270s med lt
Federation Starfleet ranks (2270s-2350s) 2270s-2350 ltjg sleeve 2270s-2350 cmd ltjg 2270s-2350 mil ltjg 2270s-2350 Eng Lt jg 2270s-2350 sec ltjg 2270s-2350 sup ltjg 2270s-2350 service ltjg 2270s-2350 med ltjg
Federation Starfleet ranks (2350s-2366) 2350s gray ltjg 2350s cmd ltjg 2350s-2360s ops ltjg 2350s sci ltjg
Federation Starfleet ranks (2366-2373) 2350s gray ltjg Red Lt jg 2364 Red Lt jg 2371 Yel Lt jg 2364 Yel Lt jg 2371 Blu Lt jg 2364 Blu Lt jg 2371
Federation Starfleet ranks (2373-2386) 2370s cmd ltjg Yel Lt jg 2373 2370s sci ltjg
Federation Starfleet ranks (2386-2410) Red Ltjg 2400s Yel Ltjg 2400s Blu Ltjg 2400s
Federation Starfleet ranks (2800s)
(Built to Lieutenant)
2800s cmd lt 2800s ops lt 2800s sci lt

Alternate lieutenant junior grade insigniaEdit

Starfleet alternate lieutenant junior grade insignia
era command division operations division sciences division
Federation Starfleet ranks (2250s) alt
(Built to Lieutenant)
2250s alt cmd lt 2250s alt ops lt 2250s alt sci lt
Federation Starfleet ranks (2386-2410) alt Alt future cmd ltjg Alt future ops ltjg Alt future sci ltjg

Positions and ListsEdit

Command DivisionEdit

Operations DivisionEdit

ChronologyEdit

Dates listed are first appearance or mention at that rank except as noted.

2256Edit

2257Edit

2316Edit

2349Edit

2353Edit

2362Edit

2364Edit

  • Joseph Carey goes off active duty for treatment
  • Geordi La Forge
  • Worf promoted from Ensign, later promoted to Lieutenant

2365Edit

2366Edit

2367Edit

  • Joseph Carey returns to active duty

2369Edit

  • Joseph Carey promoted to Lietenant
  • Veronica Stadi promoted from Ensign

2371Edit

  • Veronica Stadi promoted to Lieutenant

2373Edit

2375Edit

  • Nog promoted from Ensign, later promoted to Lieutenant

2376Edit

2379Edit

ConnectionsEdit

Enlisted ranks Commissioned ranks Flag ranks
Earth SF CREW PO2

PO1

CPO

SCPO


MCPO

ENS LT CMDR CAPT

FCAPT


VICE CDORE

CDORE RADM/2ADM VADM/3ADM 4ADM FADM/5ADM

GADM

Starfleet & SFMC ENS JG

ENS


ENS 1C

LT JG LT LT CMDR CDR CDORE

1ADM

PVT CPL SGT

MASTER SGT

SUBLT

2ND LT

1ST LT CAPT MAJOR LT COL COL BRIG GEN

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