Case C-109/22: Judgment of the Court (Sixth Chamber) of 14 December 2023 — European Commission v Romania (Environment — Directive 1999/31/EC — Landfill of waste — Obligation to close landfill sites which have not been granted the required permit — Closure procedures — Judgment of the Court establishing a failure to fulfil obligations — Non-compliance — Article 260(2) TFEU — Pecuniary penalties — Penalty payments