Changes made by 91/107/EEC: Commission Decision of 13 February 1991 authorizing certain Member States to provide for derogations from certain provisions of Council Directive 77/93/EEC in respect of sawn wood of conifers originating in the United States of America (Only the Spanish, German, Greek, English, French, Italian, Dutch and Portuguese texts are authentic)
EU Decision 1991/107
No changes made by 91/107/EEC: Commission Decision of 13 February 1991 authorizing certain Member States to provide for derogations from certain provisions of Council Directive 77/93/EEC in respect of sawn wood of conifers originating in the United States of America (Only the Spanish, German, Greek, English, French, Italian, Dutch and Portuguese texts are authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.