Changes to 98/339/EC: Commission Decision of 14 May 1998 concerning protection measures relating to classical swine fever in Spain and repealing Decision 97/285/EC
EU Decision 1998/339
Made by 98/411/EC: Commission Decision of 26 June 1998 amending Decision 98/339/EC concerning certain protective measures relating to classical swine fever in Spain (notified under document number C(1998) 1778)
From legislation.gov.uk's record of changes, the official one: see it there.