Judgment of the Court (Fifth Chamber) of 8 July 2021.#Koleje Mazowieckie – KM Sp. z o.o. v Skarb Państwa – Minister Infrastruktury i Budownictwa obecnie Minister Infrastruktury i Prezes Urzędu Transportu Kolejowego and PKP Polskie Linie Kolejowe S.A.#Request for a preliminary ruling from the Sąd Najwyższy.#Reference for a preliminary ruling – Rail transport – Allocation of railway infrastructure capacity and levying of charges for the use of railway infrastructure – Directive 2001/14/EC – Article 4(5) – Charging – Article 30 – National regulatory body tasked with ensuring that infrastructure charges comply with that directive – Contract for use of infrastructure concluded between the infrastructure manager and a railway undertaking – Incorrect transposition – State liability – Claim for damages – Prior referral to the national regulatory body.#Case C-120/20.