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The 2024 edition contains the latest information emanating from the IMO project on the modernization of the GMDSS, which was completed in 2022 and led to the overall revision of relevant SOLAS regulations and many other mandatory and non-mandatory IMO instruments related to the GMDSS. This edition also includes:
An introduction to the GMDSS, including a description of the GMDSS concept;
A description of the components of the GMDSS, carriage requirements and operational procedures;
Detailed information regarding terrestrial and satellite-based
radiocommunication systems used in the GMDSS;
Information concerning ongoing work at IMO related to future
radiocommunication systems and services;
Information on promulgation of maritime safety information and search and rescue related information, including NAVTEX and enhanced group call services;
Excerpts from the relevant SOLAS regulations for the GMDSS;
Supporting IMO resolutions relevant to the GMDSS;
The current GMDSS Master Plan, giving the details of the coastal
infrastructure and services provided by Member States; and
Extracts from the ITU-R Radio Regulations giving the radio regulatory background.
The Manual is intended for use by ship personnel, shore operators, trainers, administrations, regulators and anyone concerned with ship radiocommunications.