http://www.legislation.gov.uk/eudr/2009/16/article/4Directive 2009/16/EC of the European Parliament and of the Council of 23 April 2009 on port State control (Recast) (Text with EEA relevance)Directive 2009/16/EC of the European Parliament and of the CouncilDirective 2009/16/EC of the European Parliament and of the Council of 23 April 2009 on port State control (Recast) (Text with EEA relevance)2021-02-18King's Printer of Acts of Parliamenthttps://webarchive.nationalarchives.gov.uk/eu-exit/https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02009L0016-20191221texttext/xmlen2019-12-21 Inspection powers Article 4 1 Member States shall take all necessary measures, in order to be legally entitled to carry out the inspections referred to in this Directive on board foreign ships, in accordance with international law. 2 Member States shall maintain appropriate competent authorities, to which the requisite number of staff, in particular qualified inspectors, for the inspection of ships is assigned, for example, through recruitment, and shall take appropriate measures to ensure that inspectors perform their duties as laid down in this Directive and in particular that they are available for carrying out the inspections required in accordance with this Directive.