Changes made by 91/648/EEC: Commission Decision of 10 December 1991 on the establishment of an addendum to the Community support framework for Community structural assistance in the United Kingdom (Northern Ireland) on the improvement of the conditions under which agricultural products are processed and marketed (Only the English text is authentic)
EU Decision 1991/648
No changes made by 91/648/EEC: Commission Decision of 10 December 1991 on the establishment of an addendum to the Community support framework for Community structural assistance in the United Kingdom (Northern Ireland) on the improvement of the conditions under which agricultural products are processed and marketed (Only the English text is authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.