Advancement matrix for NSCC cadets

RATING RATE/GRADE TIME IN RATE TIME IN SERVICE COURSE EXAM TRAINING
SEAMAN RECRUIT SR/E1 NONE NONE NONE NONE NONE
SEAMAN APPRENTICE – TEMP SA-T/E2 3 MO 3 MO BMR NONE NONE
SEAMAN APPRENTICE SA/E2 3 MO 3 MO BMR NONE RTC
SEAMAN OR AIRMAN SN OR AN/E3 6 MO 9 MO SN/AN NONE AT
PETTY OFFICER 3RD CLASS PO3/E4 6 MO 15 MO PO3/PO2 (1-2) PO3 AT
PETTY OFFICER 2ND CLASS PO2/E5 6 MO 21 MO PO3/PO2 (3-5) PO2 POLA
PETTY OFFICER 1ST CLASS PO1/E6 6 MO 27 MO PO1 PO1 AT
CHIEF PETTY OFFICER CPO/E7 6 MO 33 MO CPO NONE RECRUIT STAFF