Changes made by 89/21/EEC: Council Decision of 14 December 1988 derogating from prohibitions relating to African swine fever for certain areas in Spain
EU Decision 1989/21
No changes made by 89/21/EEC: Council Decision of 14 December 1988 derogating from prohibitions relating to African swine fever for certain areas in Spain are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.