{
  "url": "https://openlegislation.uk/eu-decision-2006-860/annex/division-7/division-7.2/division-7.2.9",
  "json_url": "https://openlegislation.uk/eu-decision-2006-860/annex/division-7/division-7.2/division-7.2.9.json",
  "legislation": "eudn/2006/860",
  "legislation_title": "Commission Decision of 7 November 2006 concerning a technical specification for interoperability relating to the control-command and signalling subsystem of the trans-European high speed rail system and modifying Annex A to Decision 2006/679/EC concerning the technical specification for interoperability relating to the control-command and signalling subsystem of the trans-European conventional rail system (notified under document number C(2006) 5211) (Text with EEA relevance) (2006/860/EC)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2006-860",
  "path": "annex/division/7/division/7.2/division/7.2.9",
  "kind": "division",
  "number": "7.2.9",
  "heading": "Rolling stock with train protection Class A and Class B equipment",
  "text": "Rolling stock may be equipped with both Class A and Class B systems to enable operations on several lines. The Class B systems may be implemented\nusing an STM that may be plugged into the ERTMS equipment (‘external STM’), or\nintegrated within the ERTMS/ETCS equipment.\nAlso, the Class B system could be implemented independently (or, in case of upgrade or renewal, be left ‘ as is ’ ), in case of Class B systems for which an STM is not an economically viable alternative, from the rolling stock owner’s point of view. However, if a STM is not used, the Railway Undertaking must ensure that the absence of a ‘ handshake ’ (= handling, by ETCS, of transitions between Class A and Class B on track-side) nevertheless is properly managed.\nWhen running on a line which is equipped with both Class A and Class B systems, the Class B systems may act as fallback arrangement for the Class A system if the train is equipped with both Class A and Class B systems. This cannot be a requirement for interoperability and is not valid for GSM-R.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Substituted by Commission Decision of 23 July 2012 amending Decisions 2006/679/EC and 2006/860/EC concerning technical specifications for interoperability (notified under document C(2012) 4984) (Text with EEA relevance) (2012/463/EU)."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2006/860/annex/division/7/division/7.2/division/7.2.9",
    "retrieved_at": "2026-11-01T15:17:24.266188+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."
}