{
  "url": "https://openlegislation.uk/eu-decision-2002-731/annex/division-2/division-2.2/division-2.2.2",
  "json_url": "https://openlegislation.uk/eu-decision-2002-731/annex/division-2/division-2.2/division-2.2.2.json",
  "legislation": "eudn/2002/731",
  "legislation_title": "Commission Decision of 30 May 2002 concerning the technical specification for interoperability relating to the control-command and signalling subsystem of the trans-European high-speed rail system referred to in Article 6(1) of Council Directive 96/48/EC (notified under document number C(2002) 1947) (Text with EEA relevance) (2002/731/EC)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2002-731",
  "path": "annex/division/2/division/2.2/division/2.2.2",
  "kind": "division",
  "number": "2.2.2",
  "heading": "CLASSES OF CONTROL-COMMAND INTERFACES BETWEEN TRACK AND TRAIN",
  "text": "Interoperability of the control-command functions is to be founded upon the development of unified specifications of the interfaces which provide for interoperability. In the meantime, the specification of the interfaces presently used for interoperable services (termed class B) are subject to the requirements of this TSI. Each class B specification shall be managed as follows. Member States have the responsibility to ensure that during their life the class B systems are managed in the interests of interoperability, in particular any changes to these specifications are to be managed such that interoperability is not prejudiced.\nTwo classes of control-command interfaces between track and train are defined:\nclass A the unified control-command interfaces — these interfaces are defined in Chapter 4. Annex A includes the specifications that define the interoperability requirements of the class A control-command interfaces,\nclass B control-command interfaces and applications existing before entry into force of Directive 96/48/EC limited to those described in Annex B. These can be implemented as STMs.\nIn order to achieve interoperability, the trains' on-board control-command assembly will consist of:\nthe class A radio and data communication interfaces to the infrastructure, in case of operation with class A Infrastructure,\nthe class B radio and data communication interfaces to the infrastructure, in case of operation with class B infrastructure.\nSection 7 describes the requirements for the transition phase from the class B interfaces to the class A interfaces for radio and for signalling purposes.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "STM: the specific transmission module (STM) allows class A on-board equipment to operate on lines fitted with class B signalling by using the class B data."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2002/731/annex/division/2/division/2.2/division/2.2.2",
    "retrieved_at": "2026-11-01T15:18:30.359571+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}