- Fleet Admiral
Fleet Admiral is the highest rank in Star Fleet. 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 Star Fleet, 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 Star Fleet. Admirals have impeccable service records and decades of service. Flag Officers of Admiral rank are in command of all main divisions Star Fleet 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, Star Fleet Bases on major worlds, or similar duties.

  - Commadore
Commadores - as above, but with fewer privileges and responsibilities.

  - Captain
Captains are the most senior of line officers. Captains most often command star ships or starbases of medium to large size. Captains may also command planetary outposts or serve as division heads for the Star Fleet Bases on major worlds.

  - Commander
Commanders are senior line officers. Commanders usually serve as the Executive Officer, Operations Officer, or Security Chief onboard a star ship. Commanders may command small star ships 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 star ship or on large starbases. Lieutenant Commanders may be the executive officers on star ships 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 star ship, save for being the Commanding or Executive Officer. In some cases Lieutenants can even be department heads, especially on smaller star ships.

  - 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 star ships, or Operations Officer on small Star ships. 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 Star Fleet 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.

  - Cadet 1st Class
Cadets 1st Class are cadets in their final year at Star Fleet Academy. They have a leadership role in the Cadet Corps. Cadets 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 Star Fleet 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 Star ship 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. Cadets 4th Class undergo what are certainly the worst conditions in Star Fleet. Cadets 4th class endure cramped Barracks, very intensive physical conditioning, and difficult classes. The ordeal almost always produces a hardworking, dedicated cadet however.

  - Master Chief Petty Officer of Starfleet
Master Chief Petty Officers of Starfleet are the highest ranking enlisted personnel in Star Fleet. They have many years of service (usually over 15), and a wealth of experience in their field. A Chief Petty Officer usually commands a major engineering or services department on a Star ship or Starbase. Examples include the Transporter Chief of a Star ship or the Chief of Operations of a Starbase.

  - Master Chief Petty Officer
Master Chief Petty Officer - as above, but with fewer privileges and responsibilities.

  - Senior Chief Petty Officer
Senior Chief Petty Officer - as above, but with fewer privileges and responsibilities.

  - Chief Petty Officer 
Chief Petty Officer - as above, but with fewer privileges and responsibilities.

  - Petty Officer 1st Class
Petty Officers 1st Class comprise most of the Non-Commissioned Officers in Star Fleet. Petty Officers 1st Class may serve in a variety of roles, including Senior Medical Technician, Transporter Operator, Security Officer, or Science Technician.

  - Petty Officer 2nd Class
Petty Officer 2nd Class - as above, but with fewer privileges and responsibilities.

  - Petty Officer 3rd Class
Petty Officer 3rd Class - as above, but with fewer privileges and responsibilities.

  - Chief Warrant Officer 3
At a high rate NCOs are deemed trained sufficiently to achieve an Commissioned Rank and become a Warrant Officer. On reaching the Rate of Chief Petty Officer/Gunnery Sergeant  the NCO can apply for Officer Training. At the next Promotion the NCO is promoted to Warrant Officer, and may hold any Junior Officer position (i.e. Asst. Chief Engineer) or any specific Warrant Officer position.

  - Chief Warrant Officer 2
Chief Warrant Officer 2 - as above, but with fewer privileges and responsibilities.

  - Chief Warrant Officer 1
Chief Warrant Officer 1 - as above, but with fewer privileges and responsibilities.

  - Warrant Officer
Warrant Officer - as above, but with fewer privileges and responsibilities.

  - Crewman 
Crewmen are enlisted personnel who usually have between 2 and 4 years of experience. Crewmen generally serve as Medical Technicians or Engineering Technicians. Promotion to Petty Officer 2nd Class upon re-enlistment is common, but not guaranteed.

  - Crewman Apprentice
Crewmen Apprentice are enlisted personnel with typically less than 2 years of service. Crewmen Apprentice generally perform menial tasks such as basic maintenance or act as security officers. Promotion to Crewman after 18 months of service is routine.

  - Crewman Recruit
Crewmen Recruits are newly enlisted personnel who are attending the Star Fleet Academy Enlisted Training Program. At the conclusion of their 6 months of training Crewmen Recruits will be promoted to Crewmen Apprentice and posted to the fleet.