Changes made by 1999/465/EC: Commission Decision of 13 July 1999 establishing the officially enzootic-bovine-leukosis- free status of bovine herds of certain Member States or regions of Member States (notified under document number C(1999) 2083)
EU Decision 1999/465
No changes made by 1999/465/EC: Commission Decision of 13 July 1999 establishing the officially enzootic-bovine-leukosis- free status of bovine herds of certain Member States or regions of Member States (notified under document number C(1999) 2083) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.