Changes made by 80/564/EEC: Commission Decision of 4 June 1980 accepting undertakings in connection with the anti-dumping proceedings concerning imports of fibre building board originating in Czechoslovakia, Finland, Norway, Poland, Romania, Spain, the Soviet Union and Sweden and terminating those proceedings
EU Decision 1980/564
No changes made by 80/564/EEC: Commission Decision of 4 June 1980 accepting undertakings in connection with the anti-dumping proceedings concerning imports of fibre building board originating in Czechoslovakia, Finland, Norway, Poland, Romania, Spain, the Soviet Union and Sweden and terminating those proceedings are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.