Changes to 83/321/EEC: Commission Decision of 16 June 1983 amending for the third time Decision 83/216/EEC concerning certain measures of protection against classical swine fever
EU Decision 1983/321
No changes to 83/321/EEC: Commission Decision of 16 June 1983 amending for the third time Decision 83/216/EEC concerning certain measures of protection against classical swine fever are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.