# Directive 2009/45/EC of the European Parliament and of the Council of 6 May 2009 on safety rules and standards for passenger ships (Recast) (Text with EEA relevance), Division .3: For the purpose of making damaged stability calculations the volume and surface permeabilities shall be as follows:

Extent: E+W+S+N.I.

Whichever results in more severe requirements.
Spaces
Permeability (%)
Appropriated to cargo or stores
60
Occupied by accommodations
95
Occupied by machineries
85
Intended for liquids
0 or 95
Higher surface permeabilities are to be assumed in respect of spaces which, in the vicinity of the damaged waterplane, contain no substantial quantity of accommodation or machinery and spaces which are not generally occupied by any substantial quantity of cargo or stores.

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Source: https://www.legislation.gov.uk/eudr/2009/45/annex/I/chapter/2/part/B/part/2/division/8/division/3/division/.3 (the official version)
Page: https://openlegislation.uk/eu-directive-2009-45/annex-I/chapter-2/part-B/part-2/division-8/division-3/division-.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.