Joint IMO/IHO/WMO Manual on Maritime Safety Information

Abstract
By clicking on the "Read" button on this page you will be accessing the PDF of the full book. To access the Full-Text version and PDFs of the individual chapters, click on the “Chapters” tab and select the chapter you would like to read.
This Manual provides a practical guide for the preparation of messages related to maritime safety information and the dissemination of navigational warnings and/or meteorological forecasts and warnings under the Global Maritime Distress and Safety System.
Copyright © International Maritime Organization 2025
Previous editions
[OBSOLETE TITLE] Joint IMO/IHO/WMO Manual on Maritime Safety Information