Judgment of the Court (Sixth Chamber) of 27 March 2025.#European Commission v Italian Republic.#Failure of a Member State to fulfil obligations – Urban waste-water treatment – Directive 91/271/EEC – Articles 4, 5 and 10 – Pollution of sensitive areas – Urban waste-water treatment plants – Judgment of the Court establishing a failure to fulfil obligations – Non-implementation – Article 260(2) TFEU – Financial penalties – Periodic penalty payment – Lump sum.#Case C-515/23.