# The Fishing Vessels (Safety Provisions) Rules 1975, Paragraph 12


In every lifeboat the total volume of the internal buoyancy appliances shall be such that it will be at least equal to the sum of the volumes of:
(a) that required to float the lifeboat and its full equipment when the lifeboat is flooded and open to the sea so that the top of the gunwale amidships is not submerged; and
(b) that equal to 10 per cent of the cubic capacity of the lifeboat.

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Source: https://www.legislation.gov.uk/uksi/1975/330/schedule/4/paragraph/12 (the official version)
Page: https://openlegislation.uk/fishing-vessels-safety-provisions-rules-1975/schedule-4/paragraph-12
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.