# 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 9: Under repairs, alterations and modifications of a ‘major character’ is understood, by way of example:

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

any change that substantially alters the dimensions of a ship,
example: lengthening by adding new midbody,
any change that substantially alters the passenger-carrying capacity of a ship,
example: vehicle deck converted to passenger accommodation,
any change that substantially increases a ship’s service life,
example: renewal of passenger accommodation on one entire deck.

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Source: https://www.legislation.gov.uk/eudr/2009/45/annex/I/chapter/I/division/9 (the official version)
Page: https://openlegislation.uk/eu-directive-2009-45/annex-I/chapter-I/division-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.