Changes made by 80/817/EEC: Sixth Council Decision of 15 July 1980 on the equivalence of field inspections carried out in third countries on seed-producing crops
EU Decision 1980/817
No changes made by 80/817/EEC: Sixth Council Decision of 15 July 1980 on the equivalence of field inspections carried out in third countries on seed-producing crops are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.