View source for Federation Starfleet ranks (2270s-2350s)

The late [[2270s]] saw yet another major change in uniform style and rank. The uniform consisted of a maroon jacket with a frontal placket that was affixed in place by a shoulder strap that denoted department and rank. Rank was determined by a pin, that varied with each rank. The rank pin was also affixed to a specific location on the sleeve of the jacket, next to another strap that had pins that denoted years of service within [[Starfleet]]. This rank system stayed in use until the [[2350s]] when [[Starfleet]] retired the uniform style in favor of a utilitarian one piece jumpsuit.

By the [[year]] [[2278]], the [[USS Bozeman personnel|crew]] of the {{USS|Bozeman|NCC-1941}} had begun to wear this style of rank insignia. ({{e|TNG|Cause and Effect}})

These stylized rank markings continued to be used until around the year [[2350]] on the {{USS|Stargazer|NCC-2893}}. By the year [[2355]], [[USS Stargazer personnel|''Stargazer'' personnel]] had switched to a new issue of uniforms and insignia. ({{e|TNG|Family|The Battle}})

==Division code==
{| class="chart"
|-
! colspan=9 | departmental color codes
|-
! command
! flight-engineering{{bsmall|(admin, pilot, engineer)}}
! sciences-operations{{bsmall|(ops, science & tactical)}}
! medical
! security
! military
! services
! student/provisional
|-
| [[file:2273 Ep Whi.png|110px|Command color tab.]] || [[file:2278 flt.png|110px|Flight-engineering color tab.]] || [[file:2278 svc.png|110px|Science-operations color tab.]] || [[file:2273 Ep Gre.png|110px|Medical color tab.]] || [[file:2270s-2350 Ep Sec.png|110px|Security color tab.]] || [[file:2278 mil.png|110px|Military color tab.]] || [[file:2278 spsvc.png|110px|Services color tab.]] || [[file:2270s-2350s cadet.png|110px|Student-provisional color tab.]]
|}

==Rank insignia==
{| class="chart"
|-
! colspan=9 | [[enlisted]] [[uniform]]
|-
! grade
! command specialty 
! flight-engineering{{bsmall|(admin, pilot, engineer)}}
! sciences-operations{{bsmall|(ops, science & tactical)}}
! medical
! security
! military
! services
! sleeve insignia{{bsmall|(all divisions)}}
|-
! [[crewman]]<ref name="ST2 notes">Rank name and insignia described in {{m|TOS|The Wrath of Khan}} costume designer notes.</ref>
| [[File:2270s-2350 cmd crew.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 flight crew.png|95px|Sleeve insignia.]]<ref name="ST2 notes" /><ref name="AB Samno">[[Samno]]. ({{m|TOS|The Undiscovered Country}})</ref>
| [[File:2270s-2350 svc crew.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 med crew.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sec crew.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 mil crew.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sup crew.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 crew sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! [[petty officer second class]]<ref name="ST2 notes" />
| [[File:2270s-2350 cmd po2.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 flight po2.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 svc po2.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 med po2.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sec po2.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 mil po2.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sup po2.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 po2 sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! [[petty officer first class]]<ref name="ST2 notes" />
| [[File:2270s-2350 cmd po1.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 flight po1.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 svc po1.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 med po1.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sec po1.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 mil po1.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sup po1.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 po1 sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! [[chief petty officer]]<ref name="ST2 notes" />
| [[File:2270s-2350 cmd cpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 flight cpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 svc cpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 med cpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sec cpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 mil cpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sup cpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 cpo sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! [[senior chief petty officer]]<ref name="ST2 notes" />
| [[File:2270s-2350 cmd scpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 flight scpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 svc scpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 med scpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sec scpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 mil scpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sup scpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 scpo sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! [[master chief petty officer second class]]<ref name="STEncyc">Rank name and insignia from {{r|ST|The Star Trek Encyclopedia}}.</ref>
| [[File:2270s-2350 cmd mcpo2.png|95px|Sleeve insignia.]]<ref name="STEncyc" />
| [[File:2270s-2350 flight mcpo2.png|95px|Sleeve insignia.]]<ref name="STEncyc" />
| [[File:2270s-2350 svc mcpo2.png|95px|Sleeve insignia.]]<ref name="STEncyc" />
| [[File:2270s-2350 med mcpo2.png|95px|Sleeve insignia.]]<ref name="STEncyc" />
| [[file:2270s-2350 sec mcpo2.png|95px|Sleeve insignia.]]<ref name="STEncyc" />
| [[file:2270s-2350 mil mcpo2.png|95px|Sleeve insignia.]]<ref name="STEncyc" />
| [[file:2270s-2350 sup mcpo2.png|95px|Sleeve insignia.]]<ref name="STEncyc" />
| [[File:2270s-2350 mcpo2 sleeve.png|95px|Sleeve insignia.]]<ref name="STEncyc" />
|-
! [[master chief petty officer]]<ref name="ST2 notes" />
| [[File:2270s-2350 cmd mcpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 flight mcpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" /><ref name="MCPORand">[[MCPO]] [[Janice Rand]]. ({{m|TOS|The Voyage Home}})</ref>
| [[File:2270s-2350 svc mcpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 med mcpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sec mcpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 mil mcpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sup mcpo.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 mcpo sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! colspan=9 | [[officer]]'s [[uniform]]
|-
! grade
! command
! flight-engineering{{bsmall|(admin, pilot, engineer)}}
! sciences-operations{{bsmall|(ops, science & tactical)}}
! medical
! security
! military
! services
! sleeve insignia{{bsmall|(all divisions)}}
|-
! [[ensign]]<ref name="ST2 notes" />
| [[File:2270s-2350 cmd ensign.png|95px|Shoulder insignia.]]<ref name="ST2 notes" /><ref name=enscmdsh>[[Ensign]] [[Jean-Luc Picard]] ({{e|TNG|{{ed|Tapestry}}}})</ref>
| [[File:2270s-2350 Eng Ens.png|95px|Shoulder insignia.]]<ref name="ST2 notes" /><ref name=ensfltsh>[[Ensign]] [[Cortin Zweller]] ({{e|TNG|{{ed|Tapestry}}}})</ref>
| [[File:2270s-2350 service ensign.png|95px|Shoulder insignia.]]<ref name="ST2 notes" /><ref name=enssvcsh>[[Ensign]] [[Marta Batanides]] ({{e|TNG|{{ed|Tapestry}}}})</ref>
| [[File:2270s-2350 med ensign.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sec ens.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 mil ens.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sup ens.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 ens sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! [[ensign first class]]<ref name="WhosWho">Rank name and insignia from {{c|TOS|Who's Who in Star Trek, Issue 2}}.</ref>
| [[File:2270s-2350 cmd ens1c.png|95px|Shoulder insignia.]]<ref name="WhosWho" />
| [[File:2270s-2350 flight ens1c.png|95px|Shoulder insignia.]]<ref name="WhosWho" />
| [[File:2270s-2350 svc ens1c.png|95px|Shoulder insignia.]]<ref name="WhosWho" />
| [[File:2270s-2350 med ens1c.png|95px|Shoulder insignia.]]<ref name="WhosWho" />
| [[file:2270s-2350 sec ens1c.png|95px|Shoulder insignia.]]<ref name="WhosWho" />
| [[file:2270s-2350 mil ens1c.png|95px|Shoulder insignia.]]<ref name="WhosWho" />
| [[file:2270s-2350 sup ens1c.png|95px|Shoulder insignia.]]<ref name="WhosWho" />
| [[File:2270s-2350 ens1c sleeve.png|95px|Sleeve insignia.]]<ref name="WhosWho" />
|-
! [[lieutenant junior grade]]<ref name="ST2 notes" />
| [[File:2270s-2350 cmd ltjg.png|95px|Shoulder insignia.]]<ref name="ST2 notes" /><ref name=ltjgcmdsh>[[Lieutenant Junior Grade]] [[Saavik]] ({{m|TOS|The Search for Spock}})</ref>
| [[File:2270s-2350 Eng Lt jg.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 service ltjg.png|95px|Shoulder insignia.]]<ref name="ST2 notes" /><ref name=ltjgsvcsh>[[Janice Rand]] ({{m|TOS|The Undiscovered Country}})</ref>
| [[File:2270s-2350 med ltjg.png|95px|Shoulder insignia.]]<ref name="ST2 notes" /><ref name=ltjgmedsh>[[Lieutenant Junior Grade]] [[Nina Popov]] ({{c|TOS|Class Reunion}})</ref>
| [[file:2270s-2350 sec ltjg.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 mil ltjg.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sup ltjg.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 ltjg sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! [[lieutenant]]<ref name="ST2 notes" />
| [[File:2270s-2350 cmd lt.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 eng lt.png|95px|Shoulder insignia.]]<ref name="ST2 notes" /><ref name=ltfltsh>[[Lieutenant]] [[Ian Troi]] ({{e|TNG|Dark Page}})</ref>
| [[File:2270s-2350 service lt.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 med lt.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sec lt.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 mil lt.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sup lt.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 lt sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! [[lieutenant commander]]<ref name="ST2 notes" />
| [[File:2270s-2350 cmd ltcmdr.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 flight lcdr.png|95px|Shoulder insignia.]]<ref name="ST2 notes" /><ref name=ltcmdrfltsh>[[Lieutenant Commander]] [[Lojur]] ({{m|TOS|The Undiscovered Country}})</ref>
| [[File:2285 Lt Cmdr Ep Grey.png|95px|Shoulder insignia.]]<ref name="ST2 notes" /><ref name=ltcmdrsvcsh>[[Valeris]] ({{m|TOS|The Undiscovered Country}})</ref>
| [[File:2270s-2350 med lcdr.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sec lcdr.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 mil lcdr.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sup lcdr.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 lcdr sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! [[commander]]<ref name="ST2 notes" />
| [[File:TWOK commander.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 flight cmdr.png|95px|Shoulder insignia.]]<ref name="ST2 notes" /><ref name=cmdrfltsh>[[Commander]] [[Hikaru Sulu]] ({{m|TOS|The Wrath of Khan}})</ref>
| [[file:Rank starfleet 2270s-2350s sciences-operations commander shoulder.png|95px|Shoulder insignia.]]<ref name="ST2 notes" /><ref name=cmdrsvcsh>[[Commander]] [[Nyota Uhura]] ({{m|TOS|The Wrath of Khan}})</ref>
| [[File:2285 Cmdr Med.png|95px|Shoulder insignia.]]<ref name=cmdrmedsh>[[Commander]] [[Leonard McCoy]] ({{m|TOS|The Wrath of Khan}})</ref>
| [[file:2270s-2350 sec cmdr.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 mil cmdr.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sup cmdr.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 cmdr sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! [[captain]]<ref name="ST2 notes" />
| [[File:2285 Capt Ep Whi.png|95px|Shoulder insignia.]]<ref name="ST2 notes" /><ref name=captcmdsh>[[Captain]] [[Spock]] ({{m|TOS|The Wrath of Khan}})</ref>
| [[file:2270s-2350 flight capt.png|95px|Shoulder insignia.]]<ref name="ST2 notes" /><ref name=captfltsh>[[Captain]] [[Montgomery Scott]] ({{m|TOS|The Search for Spock}})</ref>
| [[file:2270s-2350 service capt.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 med capt.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sec capt.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 mil capt.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sup capt.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 capt sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! [[fleet captain]]<ref name="STEncyc" />
| colspan="7" | [[File:2270s-2350 cmd fcapt.png|95px|Shoulder insignia.]]<ref name="STEncyc" />
| [[File:2270s fcapt sleeve.png|95px|Sleeve insignia.]]<ref name="STEncyc" />
|- -->
! colspan=9 | [[flag officer]]'s [[uniform]]
|-
! grade
! command
! flight-engineering{{bsmall|(admin, pilot, engineer)}}
! sciences-operations{{bsmall|(ops, science & tactical)}}
! medical
! security
! military
! services
! sleeve insignia{{bsmall|(all divisions)}}
|-
! [[commodore]]/[[one star admiral]]<ref name="ST2 notes" />
| [[File:2285 Comm Ep Whi.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 flight cdore.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 service cdore.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 med cdore.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sec cdore.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 mil cdore.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sup cdore.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 cdore sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! [[rear admiral]]<ref name="ST2 notes" />
| [[File:2270s-2350 cmd radm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" /><ref name=radmcmdsh>[[Admiral]] [[James T. Kirk]] ({{m|TOS|The Wrath of Khan}}) </ref>
| [[File:2270s-2350 flight radm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 service radm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 med radm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sec radm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 mil radm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sup radm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 radm sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! [[vice admiral]]<ref name="ST2 notes" />
| [[File:2270s-2350 cmd vadm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 flight vadm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 service vadm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 med vadm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sec vadm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 mil vadm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sup vadm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 vadm sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! [[four star admiral]]<ref name="ST2 notes" />
| [[File:Admiral 2280s.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 flight 4adm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 service 4adm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 med 4adm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sec 4adm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 mil 4adm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[file:2270s-2350 sup 4adm.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 4adm sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! [[fleet admiral]]<ref name="ST2 notes" />
| colspan="7" rowspan="2" | [[File:2285 Flt Adm Ep Whi.png|95px|Shoulder insignia.]]<ref name="ST2 notes" />
| [[File:2270s-2350 fadm sleeve.png|95px|Sleeve insignia.]]<ref name="ST2 notes" />
|-
! [[commander-in-chief]] ([[grand admiral]])
| [[File:2270s-2350 gadm sleeve.png|95px|Sleeve insignia.]]<ref name="ST6CinC">[[Commander-in-Chief]] [[William Smillie]]. ({{m|TOS|The Undiscovered Country}})</ref>
|}

==Specialties==
[[file:2270s-2350 commanding sciops ltjg.png|thumb|Department head sci-ops lieutenant junior grade's shoulder strap.]]
[[file:2270s-2350 commanding sciops ltjg alt.png|thumb|Department head sci-ops lieutenant junior grade's shoulder strap.]]
Sometimes, a crewmember or officer may wear a special insignia that shows their proficiency in a specialty or their leadership of their detachment.

For example, a command specialist who also has a specialty in science-operations can wear the white uniform tabs of their command discipline with an angular slash of the gray color of a sciences-operations uniform tab.

Conversely, a department head can wear the uniform tab color of their service division, with a white slash to denote their seniority in that division's leadership.

:''While it was intended that the shoulder strap and sleeve band would match, some slash pieces were omitted in [[canon]] productions due to the complexity of organizing the reuse of preexisting uniform pieces. In particular, costumer notes on how the colors would be used had Saavik wear grey sci-ops slashes on her command-white shoulder strap and sleeve band in ''The Search for Spock'', but the shoulder slash ended up being omitted.''

==Provisional insignia==
[[file:2270s-2350 svc trainee ens.png|thumb|Trainee sci-ops ensign's shoulder strap.]]
[[file:2270s-2350 cmd-red commodore.png|thumb|Teacher's commodore shoulder strap.]]
In addition to the array of enlisted, officer and flag officer insignia, there are also variations to distinguish those who are undergoing instruction. A red division tab or collar denotes a trainee who holds only provisional status or [[rank]]. The red insignia can be further denoted with a specialty-color slash to show personnel specialty. Conversely, an instructor may wear their normal divisional uniform with red bands to show their responsibility as a teacher.

:''While it was intended that the collar, shoulder strap and sleeve band would all match, some slash pieces were omitted in [[canon]] productions due to the complexity of organizing the reuse of preexisting uniform pieces. In particular, [[Valeris]] had her trainee insignia omitted altogether despite wearing a trainee collar. According to the original costumer notes on how the colors would be used, Saavik wore white command slashes on her trainee-red shoulder strap and sleeve band in ''The Wrath of Khan'', but the shoulder slash was not included in some scenes.

==Appendices==
===Connections===
{{Starfleet rank eras}}

===References===
<references />

[[category:starfleet]]
[[category:ranks| Federation Starfleet 2270s-2350s]]