Changes made by 90/613/EEC: Commission Decision of 9 November 1990 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 1990/613
No changes made by 90/613/EEC: Commission Decision of 9 November 1990 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) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.