Changes made by 91/13/EEC: Commission Decision of 17 December 1990 relating to trade in animals not vaccinated during the course of the last 12 months against foot and mouth disease
EU Decision 1991/13
No changes made by 91/13/EEC: Commission Decision of 17 December 1990 relating to trade in animals not vaccinated during the course of the last 12 months against foot and mouth disease are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.