UK Notified Bodies

UK Notified Bodies are UK bodies authorised to assess the compatibility of works or equipment with ERA [Technical Specifications for Interoperability|Technical Specifications for Interoperability] as part of the system to effectively and safely allow the interoperability of railway services within the European Union.
UK Notified Bodies may be appointed by ministers of Government of [the United Kingdom|HM Government] under in six railway TSI areas: Control Command and Signalling, Energy, Infrastructure, Maintenance, Operations and Rolling Stock. The European Railway Agency maintains a list of TSIs and their status.
The UK Department for Transport publishes a list of Notified Bodies.
Notified Bodies are accredited by UKAS to operate under a schedule covering the TSIs.