§ TEL TSI Source
The regulation, at source.
Everything this companion says derives from the text of one regulation. Here is that text, how it becomes the tool, and how to verify any claim yourself.
The Regulation
First milestones under the regulation - dates and responsibilities as they appear in the text:
| Date | Milestone | Reference |
|---|---|---|
| 02 Mar 2026 | TEL TSI enters into force | Art. 16(1); Art. 27(1) |
| 15 Mar 2026 | ERA manages & assigns organisation, location and ticketing codes | Art. 9(3)-(6); Art. 27(3) |
| 02 Sep 2026 | ERA central repository operational (metadata, reference data, API subscriptions) | Art. 8(1)(a)(c)(d); Art. 8(2); Art. 27(2) |
| 02 Sep 2026 | ERA publishes user manual for code-assignment web applications | Art. 9(2); Art. 27(2) |
| 02 Sep 2026 | Change control management (CCM) procedure established | Art. 12(1); Art. 27(2) |
| 02 Dec 2026 | IMs share network-specific data requirements with ERA | Art. 11(2) |
Method - from text to tool
1 · Ingest. The Official Journal text - all 24 language versions - is kept offline, paragraph-addressed, and is the only regulatory source the companion cites.
2 · Extract. Obligations are extracted per entity role: freight RU, passenger RU, infrastructure manager, terminal & service-facility operator. 4 role journeys, 13 assessment modules each.
3 · Bind. Every assessment question is bound to the article or annex point it tests - 101 questions in the flagship freight journey alone. A question without a source does not ship.
4 · Review. Content revisions are versioned per role with a changelog; headline numbers on this site are computed from the content at build time, never hand-typed.
Who is behind this
TSI Solution GmbH, Vienna - rail-telematics practitioners, not a horizontal GRC vendor. One regulation, official-source depth: the companion exists to answer "what applies to us, by when, where does it say so - and what do we do about it" for every operational role the regulation binds.
The TEL TSI Compliance Companion is an educational readiness tool and does not constitute legal advice. It is an independent product - not affiliated with, endorsed by, or operated by the European Union Agency for Railways (ERA).
TSI Solution GmbH checked this content against the Official Journal text on .