Commissioner Apostolos Tzitzikostas, in a written answer on 15 June 2026, told MEP Galato Alexandraki (ECR) that the European Commission cannot replace national safety authorities (NSAs) in supervising railway infrastructure maintenance, responding to concerns about the Tithorea-Domokos line in Greece. The answer shifts responsibility to the Hellenic NSA, which under Directive (EU) 2016/798 must ensure compliance with safety, reliability and maintenance requirements and can restrict or revoke safety authorisations if needed. The Commissioner noted that the Commission lacks the tools to investigate the specific technical problems raised—flooded cable pits, blocked drainage, cracked sleepers, and rail subsidence—and that the ongoing infringement procedure INFR(2023)2036 does not cover maintenance issues. The Rail Safety Action Plan and technical assistance from the EU Agency for Railways focus on training and capacity building, not on specific lines like Tithorea-Domokos. The answer provides no new EU measures, instead reiterating existing legal frameworks and the NSA's primary role, offering limited concrete action for the Greek rail network's compliance.