Guidance

Rail interoperability current notified national technical rules

Notified national technical (NNTR) rules are a technical standard used to ensure the rail industry is safe, efficient and sustainable.

Documents

Notified technical rules for vehicles

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Notified national technical rules for infrastructure

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Details

NNTRs can perform a number of functions, such as:

  • making a provision to deal with specific cases for particular circumstances prevailing in a member state
  • filling in where gaps have been identified in the technical specifications for interoperability (TSI)
  • setting requirements to maintain technical compatibility with existing assets that do not conform to the requirements of TSIs

Contacts for other organisations’ NNTRs

These contacts can supply a list of rules outside of Great Britain mainline that are under development for future notification as NNTRs:

Published 21 July 2011
Last updated 25 January 2018 + show all updates
  1. Vehicle rules amended to remove, correct and amend where the standard has been withdrawn, notified against wrong TSI parameters, reissued or a new standard has been published. Infrastructure rules updated to delete notified standards that have been withdrawn because they do not fulfil the criteria to be a national technical rule.
  2. Current notified national technical rules updated and spilt for vehicles and infrastructure.
  3. A list of the UK’s notified national technical rules was submitted to the European Commission by the Department for Transport in April 2016.
  4. Updated spreadsheet with list of the UK’s notified national technical rules.
  5. First published.