Changes to 90/442/EEC: Commission Decision of 25 July 1990 laying down the codes for the notification of animal diseases
EU Decision 1990/442
Made by 94/973/EC: Commission Decision of 28 December 1994 amending for the seventh time Commission Decision 90/442/EEC of 25 July 1990 laying down the codes for the notification of animal diseases with respect to Sweden
From legislation.gov.uk's record of changes, the official one: see it there.