International Railway Industry Standard (IRIS) Revision 03 (ISO/TS 22163:2017)

The quality standard for manufacturers and suppliers in the rail vehicle industry


Proof of compliance with regulations for rail vehicle manufacturers and rail operators within the framework of the quality initiative of the Association of the European Rail Industry (UNIFE)


The regulations serve to improve the quality and safety in the entire supply chain of the rail vehicle industry for companies with product development-, manufacturing- and maintenance activities. The aim is to achieve a continuous improvement by emphasising the prevention and reduction of faults in the supply chain and the improvement and maintenance of product quality and its safety aspects.

Target groups

Companies and organisations in the rail vehicle industry wishing to participate in the UNIFE Quality Initiative.


3 years - there is an annual audit to ensure that standards are being maintained and a recertification audit after 3 years.


The UNIFE-certificate IRIS is published under and is internationally valid.


The standard includes the requirements of ISO 9001:2015 and ISO/TS 22163:2017 and can be combined with all regulations and standards.

Hans Jahn