http://www.legislation.gov.uk/eudr/1979/7/article/5Council Directive of 19 December 1978 on the progressive implementation of the principle of equal treatment for men and women in matters of social security (79/7/EEC)Council Directive of 19 December 1978 on the progressive implementation of the principle of equal treatment for men and women in matters of social security (79/7/EEC)2020-12-11King's Printer of Acts of Parliamenthttps://webarchive.nationalarchives.gov.uk/eu-exit/https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:31979L0007texttext/xmlen1978-12-19 Article 5 Member States shall take the measures necessary to ensure that any laws, regulations and administrative provisions contrary to the principle of equal treatment are abolished.