Changes made by 1999/319/CFSP: Council Decision of 1 June 1999 amending Decision 1999/319/CFSP implementing Common Position 1999/318/CFSP concerning additional restrictive measures against the Federal Republic of Yugoslavia
EU Decision 1999/357
No changes made by 1999/319/CFSP: Council Decision of 1 June 1999 amending Decision 1999/319/CFSP implementing Common Position 1999/318/CFSP concerning additional restrictive measures against the Federal Republic of Yugoslavia are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.