Case C-770/24, DB InfraGO and DB RegioNetz Infrastruktur: Judgment of the Court (Fourth Chamber) of 19 March 2026 (request for a preliminary ruling from the Verwaltungsgericht Köln – Germany) – DB InfraGO AG, DB RegioNetz Infrastruktur GmbH v Bundesrepublik Deutschland (Reference for a preliminary ruling – Rail transport – Directive 2012/34/EC – Railway infrastructure – Management independence – Article 4(2) – Independence of infrastructure managers – Infrastructure and services charges – Article 29(1) – Establishing, determining and collecting charges – Charging scheme for charges for the use of the German railway infrastructure – Short-distance rail passenger transport – Calculation of the amount of the charges – Multiplication of the amount of the average charges levied during a reference period by a fixed annual rate of increase laid down by law)