Changes made by 91/665/EEC: Council Decision of 11 December 1991 designating a Community Coordinating Institute for foot- and-mouth disease vaccines and laying down its functions
EU Decision 1991/665
No changes made by 91/665/EEC: Council Decision of 11 December 1991 designating a Community Coordinating Institute for foot- and-mouth disease vaccines and laying down its functions are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.