Judgment of the Court (Grand Chamber) of 29 July 2019.#Inter-Environnement Wallonie ASBL and Bond Beter Leefmilieu Vlaanderen ASBL v Conseil des ministres.#Reference for a preliminary ruling — Environment — Espoo Convention — Aarhus Convention — Conservation of natural habitats and of wild fauna and flora — Directive 92/43/EEC — Article 6(3) — Definition of ‘project’ — Assessment of the effects on the site concerned — Article 6(4) — Meaning of ‘imperative reasons of overriding public interest’ — Conservation of wild birds — Directive 2009/147/EC — Assessment of the effects of certain public and private projects on the environment — Directive 2011/92/EU — Article 1(2)(a) — Definition of ‘project’ — Article 2(1) — Article 4(1) — Environmental impact assessment — Article 2(4) — Exemption from assessment — Phasing out of nuclear energy — National legislation providing, first, for restarting industrial production of electricity for a period of almost 10 years at a nuclear power station that had previously been shut down, with the effect of deferring by 10 years the date initially set by the national legislature for deactivating and ceasing production at that power station, and second, for deferral, also by 10 years, of the date initially set by the legislature for deactivating and ceasing industrial production of electricity at an active power station — No environmental impact assessment.#Case C-411/17.