lexiara

1.

Each of the subsystems shall be covered by a TSI. In the case of subsystems concerning the environment, operation or users, TSIs will be drawn up only to the extent necessary to ensure interoperability of the trans-European high-speed rail system in the fields of infrastructure, energy, control and command, signalling and rolling stock.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-29 · Text as adopted (Official Journal); later amendments are not incorporated in this text.