# The Railways (Interoperability) Regulations 2011, Paragraph 2.4


On-board control-command and signalling
All the on-board equipment required to ensure safety and to command and control movements of trains authorised to travel on the network.

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Source: https://www.legislation.gov.uk/uksi/2011/3066/schedule/3/paragraph/2.4 (the official version)
Page: https://openlegislation.uk/railways-interoperability-regulations-2011/schedule-3/paragraph-2.4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.