Changes made by 80/862/EEC: Commission Decision of 21 August 1980 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 1980/862
No changes made by 80/862/EEC: Commission Decision of 21 August 1980 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.