C-104/21RegioJet a. s. v České dráhy a.s

The court's own keywords

Reference for a preliminary ruling – Article 53(2) of the Rules of Procedure of the Court of Justice – Article 267 TFEU – Concept of ‘court or tribunal’ – Criteria relating to the constitution and function of that body – Exercise of judicial or administrative functions – Directive 2012/34/EU – Articles 55 and 56 – Single national regulatory body for the railway sector – Independent regulatory authority for the sector – Entitlement to act on an ex officio basis – Power to impose penalties – Decisions that are open to challenge before the courts – Manifest inadmissibility of the request for a preliminary ruling.

Interprets