Judgment of the Court (Third Chamber) of 24 February 2022.#Namur-Est Environnement ASBL v Région wallonne.#Reference for a preliminary ruling – Environment – Directive 2011/92/EU – Assessment of the effects of certain projects on the environment – Directive 92/43/EEC – Conservation of natural habitats – Relationship between the assessment and consent procedure referred to in Article 2 of Directive 2011/92/EU and a national procedure for derogation from the species protection measures provided for by Directive 92/43/EEC – Concept of ‘development consent’ – Multi-stage decision-making process – Obligation to conduct an assessment – Material scope – Stage of the procedure at which public participation in the decision-making process must be ensured.#Case C-463/20.