ECM — Entity in Charge of Maintenance

Every vehicle registered in the EU must have an Entity in Charge of Maintenance assigned in the vehicle register — the organisation that answers for the vehicle being maintained in a safe state of running. The ECM system exists because wagons and increasingly locomotives circulate far from their keeper across many operators: someone specific must own the maintenance file, the maintenance programme, and the fleet-wide feedback loop regardless of where the vehicle runs. Regulation (EU) 2019/779 defines the certification scheme: an ECM's management system covers four functions — management, maintenance development, fleet maintenance management, and maintenance delivery — and certification is mandatory for freight-wagon ECMs, with the same framework applied more widely. The ECM appears in the European Vehicle Register entry for each vehicle, and its certificates in ERADIS. In wagon practice the ECM system interlocks with the GCU, the contractual framework under which wagons are exchanged between keepers and railway undertakings.