| Volume D - Edition 2018 (with amendments made 7 May 2019) |
Chapter 1 - SafetyNET Services - The Global Maritime Distress and Safety System (GMDSS)
- Part A - Satellite Systems / Communications
- Part B - Terrestrial Systems
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Chapter 2 - Maritime Safety Information (MSI) Broadcast Service
- Part A - Satellite Systems / Communications
- Part B - NAVTEX
- Part C - HF NBDP
- Part D - Radio-Facsimile
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| Chapter 3 - Visual Storm Warning Signals |
Chapter 4 - Focal Point Contact Information
- Part A: National Contact Points for WMO GMDSS Marine Broadcast System
- Part B: Contact points for Ship Weather Routeing Services and Port Meteorological Offices
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