Enlisted Grade Structure

Seaman Recruit
E-1
SR

Seaman Apprentice
E-2
SA

Seaman
E-3
SN

Non-Commissioned Officer Grade Structure

Petty Officer Third Class
E-4
PO3

Petty Officer Second Class
E-5
PO2

Petty Officer First Class
E-6
PO1

Chief Petty Officer
E-7
CPO

Senior Chief Petty Officer
E-8
SCPO

Master Chief Petty Officer
E-9
MCPO

Command Master Chief Petty Officer
E-9
CMC

Master Chief Petty Officer of the Coast Guard
E-9
MCPOCG

Warrent Officer Grade Structure

Chief Warrent Officer 2
W-2

Chief Warrent Officer 3
W-3

Chief Warrent Officer 4
W-4

Officer Grade Structure

Ensign
O-1
ENS

Lieutenant Junior Grade
O-2
LTJG

Lieutenant
O-3
LT

Lieutenant Commander
O-4
LCDR

Commander
O-5
CDR

Captain
O-6
CAPT

Rear Admiral
O-7
RDML

Rear Admiral Lower Half
O-8
RADM

Vice Admiral
O-9
VADM

Admiral
O-10
ADM