Changes made by 91/666/EEC: Council Decision of 11 December 1991 establishing Community reserves of foot-and-mouth disease vaccines
EU Decision 1991/666
No changes made by 91/666/EEC: Council Decision of 11 December 1991 establishing Community reserves of foot-and-mouth disease vaccines are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.