Changes made by 91/591/EEC: Commission Decision of 5 November 1991 amending Commission Decision 90/613/EEC approving derogations provided for by Italy from certain provisions of Council Directive 77/93/EEC in respect of seed potatoes originating in Poland (Only the Italian text is authentic)
EU Decision 1991/591
The legislation 91/591/EEC: Commission Decision of 5 November 1991 amending Commission Decision 90/613/EEC approving derogations provided for by Italy from certain provisions of Council Directive 77/93/EEC in respect of seed potatoes originating in Poland (Only the Italian text is authentic) changes, newest first. Choose one to see each change.
From legislation.gov.uk's record of changes, the official one: see it there.