The US Coast Guard issued guidance regarding appropriate qualifications for STCW endorsements as office in charge (OIC) of a navigational watch on
ships of 200 GRT / 500 GT or more for applicants qualifying for an officer endorsement (license) through in-service experience (“via the hawsepipe”)
rather than completing a comprehensive, Coast Guard-approved program such as that offered at a maritime academy.

Click here to view the Policy Letter 11-07 (June 17, 2011)

From Bryants Maritime Blog