34The Court has interpreted that provision as meaning that plans and programmes whose adoption is regulated by national legislative or regulatory provisions, which determine the competent authorities for adopting them and the procedure for preparing them, must be regarded as ‘required’ within the meaning, and for the application, of the SEA Directive and, accordingly, be subject to an assessment of their environmental effects in the circumstances which it lays down (judgments of 22 March 2012, Inter-Environnement Bruxelles and Others, C‑567/10, EU:C:2012:159, paragraph 31 and of 7 June 2018, Thybaut and Others, C‑160/17, EU:C:2018:401, paragraph 43).
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