46 CFR § 15.817 - Global Maritime Distress and Safety System (GMDSS) Radio Operator.

Every person in the required complement of deck officers, including the Master, on seagoing vessels equipped with a GMDSS, except those vessels listed in § 15.105(f) and (g), must provide evidence of a valid STCW endorsement as GMDSS Radio Operator.

[USCG-2004-17914, 78 FR 78007, Dec. 24, 2013]