Changes to 89/31/EEC: Commission Decision of 21 December 1988 amending for the first time Commission Decision 80/775/EEC on laying down methods of control for maintaining the officially brucellosis-free status of bovine herds in certain regions of the Federal Republic of Germany (Only the German text is authentic)
EU Decision 1989/31
No changes to 89/31/EEC: Commission Decision of 21 December 1988 amending for the first time Commission Decision 80/775/EEC on laying down methods of control for maintaining the officially brucellosis-free status of bovine herds in certain regions of the Federal Republic of Germany (Only the German text is authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.