Starfleet ranks

Command	Diplomacy 	Intelligence	Security	Engineering/Ops	Deck Crew/Hazard
 	 	 	 	 	
Science	Counseling	Medical 	Nursing 	Olive 	Gray
 	 	 	 	 	
== Rank Insignia ==
=== Starfleet Navy ===
Flag officers 	Flag officers 	Flag officers 	Flag officers
Rank Name 	Starfleet Navy 	Starfleet Marine Corps 	Starfleet Starfighter Corps
Fleet Admiral (FADM)Marshal (MSHL) 	 	 	
Admiral (ADM)General (GEN) 	 	 	
Vice Admiral (VADM)Lieutenant General (LTGEN) 	 	 	
Rear Admiral, upper half (RADM)Major General (MAJGEN)	 	 	
Rear Admiral, lower half (RDML)Brigadier General (BGEN)
O	 	 	
Special Line Officers 	Special Line Officers 	Special Line Officers 	Special Line Officers
Executive Captain 	 	 	
Deputy Director 	 	 	
Executive Commander 	 	 	
Line Officers 	Line Officers 	Line Officers 	Line Officers
Fleet Captain (FCAPT) 	 	 	
Captain (CAPT)Colonel (COL) 	 	 	
Commander (CDR)Lieutenant Colonel (LTCOL) 	 	 	
Lieutenant Commander (LCDR)Major (MAJ) 	 	 	
Lieutenant (LT)Captain (CAPT) 	 	 	
Lieutenant, junior grade (LTJG)1st Lieutenant 	 	 	
Ensign (ENS)2nd Lieutenant 	 	 	
Warrant Officers 	Warrant Officers 	Warrant Officers 	Warrant Officers
Chief Warrant Officer 5 	 	 	
Chief Warrant Officer 4 	 	 	
Chief Warrant Officer 3 	 	 	
Chief Warrant Officer 2 	 	 	
Warrant Officer 	 	 	
Cadets 	Cadets 	Cadets 	Cadets
4th Year Cadet 	 	 	
3rd Year Cadet 	 	 	
2nd Year Cadet 	 	 	
1st Year Cadet 	 	 	
Provisional Officers 	Provisional Officers 	Provisional Officers 	Provisional Officers
Provision Captain (P-CAPT) 	 	 	
Provision Commander (P-CDR) 	 	 	
Provision Lt. Commander (P-LCDR) 	 	 	
Provisional Lieutenant (P-LT) 	 	 	
Provisional Lieutenant, junior grade 	 	 	
Provisional Ensign (P-ENS) 	 	 	
Non-commissioned officers 	Non-commissioned officers	Non-commissioned officers	Non-commissioned officers
Master Chief Petty Officer of Starfleet 	 	 	
Fleet Master Chief Petty Officer 	 	 	
Command Master Chief Petty Officer 	 	 	
Master Chief Petty Officer 	 	 	
Senior Chief Petty Officer 	 	 	
Chief Petty Officer 	 	 	
Petty Officer, 1st class 	 	 	
Petty Officer, 2nd class 	 	 	
Petty Officer, 3rd class 	 	 	
Crewman 	 	 	
Crewman Apprentice 	 	 	
Crewman Recruit 	 	 	
== Starfleet Navy Ranks ==
=== Flag Ranks ===
==== Fleet Admiral ====
Fleet Admiral is the highest rank in Starfleet. Fleet Admirals have many years of distinguished service and an impeccable record. There are only 6 Fleet Admirals: the Judge Advocate General, the Chief in Command, the Commander Starfleet, the Commandant of the Marine Corps, the Director of the Corps of Engineers and the Fleet Commander.
==== Admiral ====
Admiral is the highest normal rank in Starfleet. Admirals have impeccable service records and decades of service. Flag Officers of Admiral rank are in command of all main divisions Starfleet with the exceptions listed above for Fleet Admirals. There are also 8 sector Admirals who are responsible for operations in their specific area, such as the Romulan Neutral Zone or Home Sector.
==== Vice Admiral ====
Vice Admirals are Flag Officers who have a specific mandate, such as a subsection of a Division, or an area of space. Vice Admirals also command task forces. Most Armadas and Task Forces are assigned to Vice Admirals
==== Rear Admiral ====
Rear Admirals are Flag Officers responsible for a limited and specific area for a limited time. Rear Admirals are usually promoted to Vice Admiral within two years. Rear Admirals may command major Starbases, Shipyards, Starfleet Bases on major worlds, or similar duties.
==== Commodore ====
Commodore is a naval rank, the equivalent of which is used by the service organizations of many civilizations. As a traditional grade, commodore is the most junior flag officer rank of a naval organization, under an admiral rank (usually under rear admiral) but senior to a captain. Commodores command groups of ships, as opposed to captains commanding single ships or units. In comparison to other ranking systems, this rank is equivalent to the military brigadier or brigadier general.
== Officer ==
=== Captain ===
Captains are the most senior of line officers. Captains most often command Starships or Starbases of medium to large size. Captains may also command planetary outposts or serve as division heads for the Starfleet Bases on major worlds.
=== Commander ===
Commanders are senior line officers. Commanders usually serve as the Executive Officer, Operations Officer, or Security Chief onboard a starship. Commanders may command small starships of under 100 crewmen, but this is rare. Commanders may also command small Starbases or minor outposts. Taking the Bridge Officer's Test is the only way for a science or medical officer to be promoted to Commander, pending completion of the other requirements.
=== Lieutenant Commander ===
Lieutenant Commanders are senior line officers. Lieutenant Commanders usually serve as department heads aboard starship or on large Starbases. Lieutenant Commanders may be the executive officers on starships with a crew of less than 250, but usually Commanders fill that role.
=== Lieutenant ===
Lieutenants are the most common Commissioned Officers. Lieutenants can perform almost any Officer duty on a starship, save for being the Commanding or Executive Officer. In some cases Lieutenants can even be department heads, especially on smaller starships.
=== Lieutenant Junior Grade ===
Lieutenants Junior Grade are junior Commissioned Officers. Lieutenants Junior Grade may be the Medical Officer or Science Officer on a mid to large space station, or man a Bridge Station. Officers typically spend around 2 years as a Lieutenant Junior Grade.
=== Ensign ===
Ensigns are the most junior of Commissioned Officers. Ensigns often serve as Flight Controller aboard starships, or Operations Officer on small Starships. Ensigns can also serve in relief or assistant capacities to most other positions aboard ship. It is rare, but not unheard of, for a Cadet at Starfleet Academy to be granted a temporary Commission of Ensign. This is only done in cases of truly outstanding grades. Officers typically spend around 3 years as an Ensign.
== Cadets ==
=== Cadet, 1st Class ===
Cadets 1st Class are cadets in their final year at Starfleet Academy. They have a leadership role in the Cadet Corps. Cadet's 1st Class usually have at least 1 training cruise behind them and have earned at least 90 academic credits. A Cadet 1st Class may lead a Cadet Flight Squadron or special Cadet Operations Squad.
=== Cadet, 2nd Class ===
Cadets 2nd Class are cadets in their third year. In their third year at the Academy, cadets undergo advanced training in their field as well as detailed instruction on the current state of the Galaxy. Cadets 2nd Class may elect to take a training cruise in place of a class in Starfleet Operations. These cruises last between 4 and 16 weeks and give Cadets real space experience.
=== Cadet, 3rd Class ===
Cadets 3rd Class are cadets in their second year. In their second year at the Academy, cadets participate in field duty. A Cadet may be posted in a training role to a Starship or Starbase, or may be lucky enough to earn membership in a Cadet Squadron or Cadet Operations Squad.
=== Cadet, 4th Class ===
Cadets 4th Class are the lowest level of Cadet. They are 1st year students with no seniority or special privileges. Cadet's 4th Class undergo what are certainly the worst conditions in Starfleet. Cadet's 4th class endure cramped Barracks, very intensive physical conditioning, and difficult classes. The ordeal almost always produces a hardworking, dedicated cadet.
== Enlisted ==
=== Master Chief Petty Officer of Starfleet ===
The Master Chief Petty Officer of Starfleet (MCPOS) is the senior enlisted person in all of Starfleet, appointed by the Chief of Starfleet Operations (CSO) to serve as a spokesperson to address the issues of enlisted personnel to the highest positions in Starfleet. Exact duties vary, depending on the CSO, though the duties generally include traveling throughout the fleet, observing training and talking to enlisteds and their families.
=== Command Master Chief Petty Officer ===
After attaining the rank of Master Chief Petty Officer, service members may choose to further their career by becoming a Command Master Chief Petty Officer (CMC). A CMC is considered to be the senior-most enlisted service member within a command, and is the special assistant to the Commanding Officer in all matters pertaining to the health, welfare, job satisfaction, morale, utilization, advancement and training of the command's enlisted personnel. CMCs can be Command level (within a single unit, such as a ship, starbase, or planet-side station), Fleet level (squadrons consisting of multiple operational units, headed by a flag officer or commodore), or Force level (consisting of a separate community within Starfleet, such as Starfleet Corps of Engineers, Starfleet Intelligence, etc.).
=== Master Chief Petty Officer ===
Nearly the highest ranking in the enlisted branch, the Master Chief has served with distinction for many years. A handful of master chiefs serve within Starfleet, all acknowledged leaders in their fields and commanding the respect of those beneath them. Such NCOs oversee important departments and can enjoy treatment almost like that of a distinguished officer.
=== Senior Chief Petty Officer ===
Much like the Chief Petty Officer, the Senior Chief oversees departments of large numbers of enlisted personnel. Senior chief petty officers are few in number, have served in Starfleet for a long time, and are experts in their field. A senior chief could be viewed as the enlisted equivalent of a commander.
=== Chief Petty Officer ===
The Chief Petty Officers (CPO) oversees large groups of petty officers and departments underneath him. These NCOs typically have many years of service (usually over 15) and a wealth of experience in their field. When one becomes "chief" he garners a measure of respect for his accomplishments and proficiency. CPOs are sought out for their knowledge and experience. A Chief Petty Officer can command a major engineering or services department on a Starship or Starbase. Examples include the Transporter Chief of a Starship or the Chief of Operations of a Starbase.
=== Petty Officer (1C, 2C, 3C) ===
There are three ranks of Petty Officer: third, second and first Class. A petty officer should not be confused with a commissioned officer in Starfleet, such as a Lieutenant or a Warrant Officer. The term petty officer still refers to an enlisted person. They are promoted from crewmen to 3rd Class, then 2nd, and then 1st.
Petty officers are referred to as non-commissioned officers, or NCOs, because they frequently oversee several enlisted crewmen in their departments, and are trained to do so. Most petty officers report to a Chief Petty Officer or sometimes a commissioned officer. A petty officer undergoes more rigorous training, or has risen from the enlisted ranks to his current position.
=== Crewman 1st Class ===
Similar to a Crewmen 2nd Class, these crewmen are given slightly more responsibility and are more knowledgeable in their fields. Crewmen do not oversee any other enlisted personnel and report to petty officers above them. They are enlisted personnel who usually have between 2 and 4 years of experience. Crewmen 1st Class generally serve as Medical Technicians or Engineering Technicians. Promotion to Petty Officer 3rd Class upon re-enlistment is common, but not guaranteed.
=== Crewman 2nd Class ===
These crewmen can also be referred to as "Specialist". The crewman is overseen by petty officers and has limited duties, usually seeing to a specific system or area of function. Crewmen 2nd Class are enlisted personnel with typically less than 2 years of service. Promotion to Crewman 1st Class after 18 months of service is routine.
=== Crewman 3rd Class ===
The lowest rank of the enlisted personnel is Crewman 3rd Class. Upon graduating Starfleet Academy all enlisted personnel hold this rank.