Rank Indicator Plaques are worn on the left breast of the uniform and are actually a combination of colored bars gently welded together. Rank Insignia may also include Code Cylinders; a security measure, allowing varying degrees of access from Computer Operations to Private Residences

HC-4	Lord Admiral
HC-3	Grand Admiral
C-5	Fleet Admiral
C-4	Admiral
C-3	Vice Admiral
C-2	Rear Admiral
C-1	Commodore
O-6	Captain
O-5	Commander
O-4	Lieutenant Commander
O-3	Lieutenant
O-2	Lieutenant Junior Grade
O-1	Ensign
E-6	Flight Officer
E-5	Flight Sergeant
E-4	Flight Corporal
E-3	Crewman
E-2	Cadet
E-1	Recruit