Changes made by 80/818/EEC: Sixth Council Decision of 15 July 1980 on the equivalance of seed produced in third countries
EU Decision 1980/818
No changes made by 80/818/EEC: Sixth Council Decision of 15 July 1980 on the equivalance of seed produced in third countries are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.