Changes made by 83/517/EEC: Council Decision of 17 October 1983 on the rules of the Committee of the European Social Fund
EU Decision 1983/517
No changes made by 83/517/EEC: Council Decision of 17 October 1983 on the rules of the Committee of the European Social Fund are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.