Changes made by 84/380/EEC: Commission Decision of 4 July 1984 relating to a proceeding under Article 85 of the EEC Treaty (IV/30.810 - Synthetic fibres) (Only the French, German, Dutch, English and Italian texts are authentic)
EU Decision 1984/380
No changes made by 84/380/EEC: Commission Decision of 4 July 1984 relating to a proceeding under Article 85 of the EEC Treaty (IV/30.810 - Synthetic fibres) (Only the French, German, Dutch, English and Italian texts are authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.