Chief Mate. This is an advanced-level merchant mariner credential. The general requirements for this credential are TWIC Card (Identification, Fingerprints, Citizenship, Social Security number, etc), CG-719B Application, NDR Consent & Check, Oath, 3 letters of recommendation, photograph (supplied by TSA), SSEB Screening complete, age of 21 or over, CG-719K Physical Exam, Medical Tab in MMLD, Drug Testing Compliance, Mariner Fees, and Sea Service Letters or Discharges. Sea service requirements include recency- 90 days in the past 3 years on vessels of appropriate tonnage, Chief Mate- 360 days of service as OICNW on Ocean/NC steam or motor vessels while holding an endorsement as 2nd Mate. Unlimited Tonnage- All required service is on vessels over 200 GRT, and 50% of the required service is on vessels over 1600 GRT. There are also STCW Management Level Requirements. Other requirements include Basic Safety Training; or Continued Competency in BST, Flashing Light- course, and a valid, approved radar observer course. All candidates must complete an examination.
