Star Trek Ranks

Starfleet ranks are varied, but set in 4 main groups with it, and it's branches of Aerospace and Marine Corps. The four rank groupings are Officers, Warrant Officers, Enlisted/Non-Commissioned Officers, and Cadets.

Admirals are allowed to wear department colours at headquarters until they reach the rank of full Admiral. MCPO/CMS/SMAJ of Starfleet and X Fleet only come in red, blue and green. Cadets only wear grey.

Department	Command, Astronavigations, Strategic Ops.	Security, Tactical, Operations, Engineering	Medical, Counselling, Sciences	Diplomatic Corps, Public Relations	Intelligence, Special Ops.	Judge Advocate General's Corps	Starfleet Aerospace Corps	Marine Corps
Colour
O-10
O-9
O-8
O-7
O-6
O-5
O-4
O-3
O-2
O-1
WO-4
WO-3
WO-2
WO-1
E-9SF
E-9XF
E-9
E-8
E-7
E-6
E-5
E-4
E-3
E-2
E-1
CDT-1
CDT-2
CDT-3
CDT-4