Changes to 63/326/EEC: Commission Decision of 17 May 1963 setting up a Joint Advisory Committee on Social Questions affecting Paid Agricultural Workers
EU Decision 1963/326
Made by 70/254/EEC: Decision of the Commission of 15 April 1970 amending the Decision of 17 May 1963 setting up a Joint Advisory Committee on Social Questions affecting Paid Agricultural Workers
From legislation.gov.uk's record of changes, the official one: see it there.