Changes to Regulation (EC) No 789/2001 reserving to the Council implementing powers with regard to certain detailed…
EU Regulation No 789/2001
Made by Council Decision of 22 December 2004 providing for certain areas covered by Title IV of Part Three of the Treaty establishing the European Community to be governed by the procedure laid down in Article 251 of that Treaty (2004/927/EC)
From legislation.gov.uk's record of changes, the official one: see it there.