2nd (Second) 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. The sea service requirements are recency- 90 days in the past 3 years on vessels of appropriate tonnage. Either 360 days of service as OICNW on Ocean/NC steam or motor vessels while holding a MMC as 3rd Mate; or 360 days of service while holding a MMC as 3rd Mate, of which 180 days of service as OINCDW on Ocean steam or motor vessels, and Service as AB, Boatswain, or Quartermaster while holding an AB accepted on a 2 for 1 basis for a maximum of 180 days; or Master if GL &/or Inland of AGT may obtain this endorsement by completing the prescribed examination. All required service is on vessels over 200 GRT, and 50% of the required service is on vessels over 1600 GRT. 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.
