Changes made by 93/602/EC: Commission Decision of 19 November 1993 concerning certain protection measures relating to African swine fever in Portugal
EU Decision 1993/602
No changes made by 93/602/EC: Commission Decision of 19 November 1993 concerning certain protection measures relating to African swine fever in Portugal are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.