Changes to 91/22/EEC: Commission Decision of 18 December 1990 amending Directive 80/862/EEC authorizing the Member States to provide for derogations from certain provisions of Council Directive 77/93/EEC, in respect of potato breeding material
EU Decision 1991/22
No changes to 91/22/EEC: Commission Decision of 18 December 1990 amending Directive 80/862/EEC authorizing the Member States to provide for derogations from certain provisions of Council Directive 77/93/EEC, in respect of potato breeding material are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.