Changes to 81/545/EEC: Commission Decision of 19 June 1981 concerning animal health conditions and veterinary certification for imports of fresh meat from Bulgaria
EU Decision 1981/545
Made by 88/370/EEC: Commission Decision of 13 June 1988 amending Decision 81/545/EEC concerning animal health conditions and veterinary certification for imports of fresh meat from Bulgaria
From legislation.gov.uk's record of changes, the official one: see it there.