Ranks were created sometime in the mid 22nd century due to the expansion of the United Earth Starfleet. The early rank structure had at least three enlisted position, four officer ranks, and three ranks for use by flag officers.
Uniforms of this period were mainly worn as single fitting jumpsuits with a colored shoulder trim denoting what field a particular officer or crewman specialized in (command, security/engineering, or science/medical).
|command division||operations division||sciences division|
|crewman third class|
|crewman second class|
|crewman first class|
|chief petty officer||Insignia unestablished|
- Other ranks commonly seen in TOS-era and beyond, such as lieutenant junior grade, were never established in any ENT episode or novel. The mention of the "four-star" Admiral was spoken but never seen on screen, and thus the full admiral image is conjecture.
|Federation Starfleet rank eras|
|2160s • 2230s • 2240s-2260s • 2260s • 2270s • 2278-2350s • 2350s-2360s • 2360s-2370s • 2370s-2380s • early 2380s • 2386-2400s • 29th century • alternate histories: alternate reality 2250s • alternate reality 2390s/2400s|
|See also: Federation Starfleet ranks • United Earth Starfleet ranks • MACO ranks|
- ↑ Rank insignia inspired by other Starfleet insignias.