One of the qualified GMDSS radio operators must be designated to have primary responsibility for radio-communications during Distress incidents.

Maintaining a record of all incidents connected with the radio-communications service that appear to be of importance to Safety of life at sea is not required .

A qualified GMDSS radio operator, and a qualified backup, must be designated to perform Distress, Urgency and Safety communications.

While at sea, all adjustments or radio installations, servicing or maintenance of such installations that may affect the proper operation of the GMDSS station must be performed by, or under the supervision of, a qualified GMDSS radio maintainer.