http://www.legislation.gov.uk/eudr/2005/71/article/9Council Directive 2005/71/EC of 12 October 2005 on a specific procedure for admitting third-country nationals for the purposes of scientific researchCouncil Directive 2005/71/ECCouncil Directive 2005/71/EC of 12 October 2005 on a specific procedure for admitting third-country nationals for the purposes of scientific research2020-12-12King's Printer of Acts of Parliamenthttps://webarchive.nationalarchives.gov.uk/eu-exit/https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32005L0071texttext/xmlen2005-10-12Council Directive 2005/71/EC of 12 October 2005 on a specific procedure for admitting third-country nationals for the purposes of scientific researchDirectiveDirective (EU) 2016/801 of the European Parliament and of the Council of 11 May 2016 on the conditions of entry and residence of third-country nationals for the purposes of research, studies, training, voluntary service, pupil exchange schemes or educational projects and au pairingDirectiveCHAPTER IIIADMISSION OF RESEARCHERS
Article 9Family members1.

When a Member State decides to grant a residence permit to the family members of a researcher, the duration of validity of their residence permit shall be the same as that of the residence permit issued to the researcher insofar as the period of validity of their travel documents allows it. In duly justified cases, the duration of the residence permit of the family member of the researcher may be shortened.

2.

The issue of the residence permit to the family members of the researcher admitted to a Member State shall not be made dependent on the requirement of a minimum period of residence of the researcher.