Changes to 91/593/EEC: Commission Decision of 5 November 1991 amending Decision 89/152/EEC authorizing certain Member States to provide for exceptions to certain provisions of Council Directive 77/93/EEC in respect of potatoes for human consumption originating in Cuba (Only the German, French and Dutch texts are authentic)
EU Decision 1991/593
No changes to 91/593/EEC: Commission Decision of 5 November 1991 amending Decision 89/152/EEC authorizing certain Member States to provide for exceptions to certain provisions of Council Directive 77/93/EEC in respect of potatoes for human consumption originating in Cuba (Only the German, French and Dutch texts are authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.