Changes to 77/620/EEC: Council Decision of 27 September 1977 amending Council Decision 76/633/EEC setting up an Advisory Committee on Joint Data Processing Projects
EU Decision 1977/620
No changes to 77/620/EEC: Council Decision of 27 September 1977 amending Council Decision 76/633/EEC setting up an Advisory Committee on Joint Data Processing Projects are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.