46 CFR § 12.623
Requirements to qualify for an STCW endorsement as Global Maritime Distress and Safety System (GMDSS) at-sea maintainer
April 15, 2021
To qualify for an STCW endorsement as GMDSS at-sea maintainer, an applicant must—
(a) Be not less than 18 years of age;
(b) Provide evidence of—
(1) Successful completion of a training program that covers at least the scope and content of the training outlined in Section B-IV/2 of the STCW Code (incorporated by reference, see §12.103 of this part); or
(2) Passing an approved GMDSS at-sea maintainer course; and
(c) Hold a valid Federal Communications Commission (FCC) certificate as GMDSS at-sea maintainer.