Load Lines, consolidated Edition, 2021

Port State control inspections contribute to ensuring that global maritime standards are being implemented consistently on all ships. This publication provides guidance for port State control officers on the conduct of inspections to support harmonization in the way inspections are carried out worldwide. This edition includes amendments to the *Guidelines for investigations and inspections carried out under MARPOL Annex II* (appendix 4), the *Guidelines for control of operational requirements* (appendix 7) and the *Guidelines for port State control under MARPOL Annex VI* (appendix 18).

SafetyNET is an international automatic direct-printing satellite-based service for the promulgation of maritime safety information including navigational warnings and meteorological information and other urgent safety-related messages to ships, as well as search and rescue-related information, and fulfils an integral role in the Global Maritime Distress and Safety System (GMDSS). This edition of the Manual, renamed the *International SafetyNET Services Manual*, incorporates changes introduced to the Inmarsat satellite network and services including the Inmarsat Fleet Safety service, which has been recognized as a mobile satellite service for use in the GMDSS by adoption of resolution MSC.450(99).