{
  "url": "https://openlegislation.uk/eu-regulation-2009-29/annex-II/division-2",
  "json_url": "https://openlegislation.uk/eu-regulation-2009-29/annex-II/division-2.json",
  "legislation": "eur/2009/29",
  "legislation_title": "Commission Regulation (EC) No 29/2009 of 16 January 2009 laying down requirements on data link services for the single European sky (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2009-29",
  "path": "annex/II/division/2",
  "kind": "division",
  "number": "2",
  "heading": "Definition of ATC Communications Management service (ACM)",
  "text": "The ACM service shall provide automated assistance to flight crews and air traffic controllers for conducting the transfer of ATC communications (voice and data) comprising:\nthe initial establishment of CPDLC with an ATS unit,\nthe transfer of CPDLC and voice for a flight from one ATS unit to the next ATS unit, or to instruct a change of voice channel within an ATS unit or sector,\nthe normal termination of CPDLC with an ATS unit.\nThe exchanges between airborne and ground data link systems for the execution of ACM service shall comply with:\noperating methods and time sequence diagrams specified in Sections 5.1.1.1.1 to 5.1.1.1.7 and 5.1.1.2 of the Eurocae document identified in point 11 of Annex III,\nsafety requirements specified in Section 5.1.2.3 of the Eurocae document identified in point 11 of Annex III, excluding requirements relating to downstream clearance,\nperformance requirements for the en route phase specified in Section 5.1.3.2 of the Eurocae document identified in point 11 of Annex III.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2009/29/annex/II/division/2",
    "retrieved_at": "2026-11-01T14:51:42.579008+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."
}