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Plant Assessment Body

NCB is an experienced and accredited PAB you can trust to deliver

A certificate of Engineering Conformance is one way of demonstrating rail vehicles are safe to introduce to the railway system. The certificates are issued in accordance with Railway Industry Standard RIS-1710-PLT.

NCB is accredited to certify a wide range of vehicles on the rail network.


NCB as a PAB

We are accredited by United Kingdom Accreditation Service (UKAS) to offer this certification and can provide services for the following vehicle types:

  • On-Track Machines – Against the requirements detailed in RIS-1702-PLT
  • On-Track Plant – Against the requirements detailed in RIS-1530-PLT

Certificates can be issued in the following areas of approval:

  • Engineering Conformance

Our scope of accreditation is managed by UKAS and published by the Rail Safety and Standards Board (RSSB). 

On-track Machines (OTM) in travelling and working modes and to OTM in running mode for use on railways which are not in scope of the Interoperability Directive.

Assessment of new OTM in running mode and modifications for existing OTM in running mode will be carried out in accordance with the requirements of the Interoperability Directive and associated TSIs and the Safety Management System of the railway undertaking concerned.