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

C-5	Command General
C-4	General
C-3	Lieutenant General
C-2	Major General
C-1	Brigadier General
O-6	Colonel
O-5	Lieutenant Colonel
O-4	Major
O-3	Captain
O-2	First Lieutenant
O-1	Second Lieutenant
E-6	Sergeant First Class
E-5	Sergeant
E-4	Corporal
E-3	Private First Class
E-2	Private
E-1	Recruit