ECM - Entity in charge of maintenance for rolling stock

Certification system for entities in charge of the maintenance of freight wagons (ECM) according to EU Regulation 445/2011
(Certificates in accordance with Regulation (EU) 445/2011 are valid until the end of their period of validity, respectively until June 16, 2023 at the latest. The remaining maintenance audits are carried out in compliance with Regulation (EU) 445/2011. Initial certifications and recertifications will be conducted, without exception, pursuant to Implementing Regulation (EU) 2019/779.)


SQS supports the aspirations of its customers with respect to high quality and its continuous improvement. Thus SQS supports and motivates its railway and rolling stock owner customers, or entities in charge of the maintenance of freight wagons (ECM), in the continuous improvement of their services and offerings while taking into account the economic aspects.


The SQS ECM certificate promotes acceptance by supervisory authorities and operators responsible for traffic on marked-out routes.

Target groups

Railway traffic enterprises, wagon owners, and infrastructure operators.


Maximum 5 years - in the context of continuous development, annually a maintenance audit and prior to expiration a re-certification audit is held.


The SQS certificate of conformity with ECM has international recognition.


The ECM certification system may be combined with ISO 9001 (Quality Management) and IRIS.

Lead Auditor
Sven Dornfeld
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