# 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 .4: Assumed extent of damage shall be as follows:

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

.1 longitudinal extent: 3,0 metres plus 3 % of the length of the ship, or 11,0 metres, or 10 % of the length of the ship, whichever is less;
.2 transverse extent (measured inboard from the ship’s side, at right angles to the centreline at the level of the deepest subdivision load line): a distance of one fifth of the breadth of the ship; and
.3 vertical extent: from the base line upwards without limit;
.4 if any damage of lesser extent than that indicated in .4.1, .4.2, .4.3 would result in a more severe condition regarding heel or loss of metacentric height, such damage shall be assumed in the calculations.

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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/.4 (the official version)
Page: https://openlegislation.uk/eu-directive-2009-45/annex-I/chapter-2/part-B/part-2/division-8/division-3/division-.4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.