Changes to 84/6/EEC: Commission Decision of 12 December 1983 amending Decision 83/123/EEC granting financial assistance within the framework of the special energy development programme (Only the English text is authentic)
EU Decision 1984/6
No changes to 84/6/EEC: Commission Decision of 12 December 1983 amending Decision 83/123/EEC granting financial assistance within the framework of the special energy development programme (Only the English text is authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.