Guidance

Rail interoperability current notified national technical rules

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

Document

Detail

A list of the UK’s notified national technical rules was submitted to the European Commission by the Department in April 2016.

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