Changes made by 83/669/EEC: Commission Decision of 8 December 1983 relating to a proceeding under Article 85 of the EEC Treaty (IV/29.955 - Carbon Gas Technologie) (Only the German text is authentic)
EU Decision 1983/669
No changes made by 83/669/EEC: Commission Decision of 8 December 1983 relating to a proceeding under Article 85 of the EEC Treaty (IV/29.955 - Carbon Gas Technologie) (Only the German text is authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.