Changes made by 78/155/EEC: Commission Decision of 23 December 1977 relating to a proceeding under Article 85 of the EEC Treaty (IV/29.146 - BMW Belgium NV and Belgian BMW dealers) (Only the French and Dutch texts are authentic)
EU Decision 1978/155
No changes made by 78/155/EEC: Commission Decision of 23 December 1977 relating to a proceeding under Article 85 of the EEC Treaty (IV/29.146 - BMW Belgium NV and Belgian BMW dealers) (Only the French and Dutch texts are authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.