{
  "url": "https://openlegislation.uk/eu-regulation-2009-29/annex-II/division-3",
  "json_url": "https://openlegislation.uk/eu-regulation-2009-29/annex-II/division-3.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/3",
  "kind": "division",
  "number": "3",
  "heading": "Definition of ATC Clearances and Information service (ACL)",
  "text": "The ACL service shall provide flight crews and controllers with the ability to conduct operational exchanges comprising:\nrequests and reports from flight crews to air traffic controllers,\nclearances, instructions and notifications issued by air traffic controllers to flight crews.\nThe exchanges between airborne and ground data link systems for the execution of ACL service shall comply with:\noperating methods and time sequence diagrams specified in Sections 5.2.1.1.1 to 5.2.1.1.4 and 5.2.1.2 of the Eurocae document identified in point 11 of Annex III,\na common subset of the message elements specified in Section 5.2.1.1.5 of the Eurocae document identified in point 11 of Annex III as appropriate to the en route operational environment,\nsafety requirements specified in Section 5.2.2.3 of the Eurocae document identified in point 11 of Annex III,\nperformance requirements for the en route phase specified in Section 5.2.3.2 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/3",
    "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."
}