Changes to 87/499/EEC: Council Decision of 5 October 1987 introducing a communications network Community programme on trade electronic data interchange systems (TEDIS)
EU Decision 1987/499
Made by 89/241/EEC: Council Decision of 5 April 1989 amending Decision 87/499/EEC introducing a communications network Community programme on trade electronic data interchange systems (Tedis)
From legislation.gov.uk's record of changes, the official one: see it there.