What should the GMDSS radio operator consult to review the proper procedures to be followed in distress situations under GMDSS?

Correct Answer: Option D — Part 80, Subpart W of the FCC Rules and Regulations

47 CFR Part 80, Subpart W, contains the specific FCC regulations governing GMDSS operations in the United States. This subpart outlines the mandatory procedures for distress, urgency, and safety communications, serving as the legal framework for radio operators to follow during emergency situations at sea.