Case C-474/10: Judgment of the Court (Fourth Chamber) of 20 October 2011 (reference for a preliminary ruling from the Court of Appeal in Northern Ireland (United Kingdom)) — Department of the Environment for Northern Ireland v Seaport (NI) Ltd, Magherafelt District Council, F P McCann (Developments) Ltd, Younger Homes Ltd, Heron Brothers Ltd, G Small Contracts, Creagh Concrete Products Ltd (Reference for a preliminary ruling — Directive 2001/42/EC — Article 6 — Designation, for consultation purposes, of an authority likely to be concerned by the environmental effects of implementing plans and programmes — Possibility of authority to be consulted conceiving plans or programmes — Requirement to designate a separate authority — Arrangements for the information and consultation of the authorities and the public)