Changes to Diseases of Animals (Approved Disinfectants) 1978
S.I. 1978/32
Made by Avian Influenza and Influenza of Avian Origin in Mammals (No 2) 2006
1 change. All changes to Diseases of Animals (Approved Disinfectants) 1978
From legislation.gov.uk's record of changes, the official one: see it there.