TITJUR Le Poumon vert de la Hulpe and Others Order of the Court (Fourth Chamber) of 17 November 2011. # Le Poumon vert de la Hulpe ASBL and Others v Région wallonne. # References for a preliminary ruling: Conseil d'État - Belgium. # Assessment of the effects of projects on the environment - Directive 85/337/EEC - Scope - Concept of 'specific act of national legislation' - Aarhus Convention - Access to justice in environmental matters - Extent of the right to a review procedure in respect of a legislative act. # Joined cases C-177/09 to C-179/09.