Marine Safety Agency
Offers extensive information regarding Global Maritime Distress and Safety Systems.

Densham and Associates Pty Ltd
Communications consultants specializing in the Global Maritime Distress and Safety System, GMDSS. Includes regulations, equipment requirements for merchant vessels, recreational craft and survival crafts as well as background history and GMDSS specific mailing/discussion list.

GMDSS Canadian Sub-Committee IEC TC-80 SWG - 8
Intended to provide resources and links for persons interested in the development of Canadian positions and policies related to GMDSS.

US Coast Guard GMDSS
Information, statistics and overview of the Global Maritime Distress and Safety System.