# The Railways (Interoperability) (High-Speed) Regulations 2002, Paragraph 2.4.3: Requirements specific to each subsystem


Technical compatibility
The electrical equipment must be compatible with the operation of the control and command and signalling installations.
The characteristics of the current-collection devices must be such as to enable trains to travel under the energy-supply systems for the trans-European high-speed rail system.
The characteristics of the rolling stock must be such as to allow it to travel on any line on which it is expected to operate.

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Source: https://www.legislation.gov.uk/uksi/2002/1166/schedule/3/paragraph/2.4.3 (the official version)
Page: https://openlegislation.uk/railways-interoperability-high-speed-regulations-2002/schedule-3/paragraph-2.4.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.