Interoperability FAQs
Table of contents
- Contracting entity
- Who can be the Contracting Entity for a project?
- Can the Contracting Entity change during the course of a project?
- Who is responsible for maintaining the technical file?
- Notified Bodies (NoBos)
- When should the contracting entity involve a notified body?
- Can the NoBo be changed during the course of a project?
- How is a foreign NoBo able to approve against UK notified standards?
- Authorisation
- How do I find out whether what I’m planning to do has to be authorised?
- Standards
- What is a TSI?
- I can’t comply with a TSI – what can I do?
- Advanced stage
- Error in the TSI
- An error in a TSI is critical if it:
- Non-critical errors
- What is a ‘specific case’?
- As Contracting Entity, once I have signed contracts, can I declare a ‘design freeze’?
- I’m struggling with the Freight Wagon TSI – how can we get it improved?
- Standards have changed while my project has been under way: how do we handle that?
- What is derogation?
- On what grounds can derogation be made?
- What projects may be entitled to advanced stage derogations?
- What is an NNTR?
- Can NNTRs be changed? And if so, how?
- Can we use an NNTR instead of a TSI?
- Will RGS be replaced by Technical Specifications for Interoperability (TSIs)?
- The Noise TSI requires vehicle testing on a test track, but there is no such track in GB. So what do we do?
- Interoperability constituents
- What is an Interoperability Constituent?
- Must all new vehicles and their interoperability constituents fully comply with TSIs or is there scope to accept non compliant interoperability constituents for subsystems used in UK only?
- Is it possible that an “advanced stage of project” derogation can apply where constituents are ordered before a TSI comes into force; even where the vehicle contract is not signed until afterwards?
- Building more of the same
- When may authorisation be deemed to cover additional rolling stock of the same specification?
- When a new project had reached the design stage on the 2nd April 2006 can the NoBo have regard to earlier design work on that project or does that design work have to be duplicated?
- I am building new vehicles to be inserted into existing trainsets to expand their capacity (eg changing existing 3-vehicle sets into 4-vehicle sets). Is this major work? If so, is it a new subsystem, or an upgrade or a renewal?
- HELP! I’ve still got a problem!
