Guidance: MGN 375 (M+F) Maritime safety information Amendment 1

Maritime Coastguard Agency

December 19
09:30 2022


Notice to all Shipowners, Masters, Superintendents and Skippers of Fishing Vessels, Yachts and Other Seagoing Craft

This notice replaces This notice replaces Marine Guidance Notes 23, and 44 and 375

The Global Maritime Distress and Safety System (GMDSS) supports two systems for broadcasting MSI:

  • The International NAVTEX Service
  • The International Enhanced Group Calling (EGC) Service
    • The International SafetyNET Service
    • The Iridium SafetyCast Service

The United Kingdom NAVTEX station coverage area is given in section 4.3 and is complemented by VHF and MF radiotelephony.

This Notice provides guidance about the principal sources of relevant information. Masters, skippers and others should refer to Maritime and Coastguard Agency (MCA/064) leaflet via the MCA website at for details, copies can also be obtained from MCA offices.

Masters, skippers and others should use every available means to obtain the latest MSI.

Published 19 December 2022

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