Guidance
MGN 165 Amendment 2 (F) fishing vessels and the risk of flooding
This notice provides guidance on how to reduce the risk of flooding and the action to take if flooding occurs.
Documents
Details
Notice to:
- designers
- builders
- certifying authorities
- classification societies
- agents
- brokers
- owners
- employers
- skippers
- crew of fishing vessels
This notice should be read with:
- the Fishing Vessel (Code of Practice) Regulations 2017 No. 943
- MSN 1871 (F) The Code of Practice for the Safety of Fishing Vessels of less than 15m Length Overall
- MSN 1872 (F) The Code of Safe Working Practice for the construction and use of Fishing Vessels of 15m Length Overall to less than 24m Registered Length
- MGN 570 Amendment 1 (F) Fishing Vessels: Emergency Drills
- MGN 571 (F) Fishing Vessels – Prevention of Man Overboard
This notice:
- provides guidance on bilge systems, during construction and operation, to help reduce the number of vessels and lives lost as a result of flooding
- provides guidance preventative maintenance around all aspects of vessel watertight integrity and pumping arrangements to reduce the risk of flooding
- recommends owners and skippers to consider using additional or alternative equipment, such as salvage pumps, propeller shaft-mounted pumps and secondary bilge alarms, to reduce the risk of catastrophic flooding
- provides guidance on the actions to take in the event of flooding
- provides guidance on preventing and dealing with flooding in shelter decks
- reminds owners that vessels must be maintained in accordance with accepted / recognised construction standards and ensure modifications comply with these standards
Updates to this page
Published 23 July 2026