What does OINCDW stand for

this is one of the requirements for 2nd mate

what does the OINCDW stand for???

[U][I][B]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,
Service as AB, Boatswain, or Quartermaster while holding an AB
accepted on a 2 for 1 basis for a maximum of 180 days, OR 11.406 [/B][/I][/U]

Officer in charge of deck watch.

I’d say it’s a typo, should read: OICNW Officer In Charge of a Navigation Watch.

The proposed change to 46CFR 11.406 will read quite different than what you quoted, BTW.