{
  "url": "https://openlegislation.uk/eu-decision-2015-1183/annex/division-4",
  "json_url": "https://openlegislation.uk/eu-decision-2015-1183/annex/division-4.json",
  "legislation": "eudn/2015/1183",
  "legislation_title": "Commission Implementing Decision (EU) 2015/1183 of 17 July 2015 setting out the necessary technical and operational specifications for implementing version 3 of the EGNOS system",
  "legislation_url": "https://openlegislation.uk/eu-decision-2015-1183",
  "path": "annex/division/4",
  "kind": "division",
  "number": "4",
  "heading": "Safety-of-Life service technical and operational specifications",
  "text": "4.1.\nAviation service\nThe performance specifications included in this table address only signal-in-space contributions.\nA range is given for service availability for approach procedure. The bottom of the range shall correspond to the availability expected for the GPS L1-only service. The top of the range shall be available for users equipped with a dual frequency GPS L1-L5 receiver or a combined GPS/Galileo dual-frequency receiver.\n‘Land masses of an area’ means any land territory, including islands, in the FIR of that area except for the Cat I service for which coverage of Azores, Madeira and Canary Islands are excluded.\nUntil sufficient Galileo performance is demonstrated, APV-I service level is accepted.\nEn-route — Non-Precision Approach\nApproach with Vertical Guidance APV-I (legacy service)\nLPV 200 Approach\nCat I Precision Approach\nStandards\nAnnexe V, point 3(a) of Implementing Regulation (EU) No 1035/2011, as applicable\nLateral accuracy\n220 m\n16 m\n16 m\n16 m\nVertical accuracy\nNot applicable\n20 m\n4 m\n4 m\nVNSE — fault-free conditions\nN/A\nN/A\n10 m\nwith probability of 10–7/150 s\nN/A\nVNSE — system failure conditions\nN/A\nN/A\n15 m\nwith probability of 10–5/150 s\nN/A\nIntegrity risk\n1,10–7/hour\n2,10–7/150 s\n2,10–7/150 s\n2,10–7/150 s\nTime To Alarm\n10 s\n10 s\n6 s\n6 s\nHAL\n556 m\n40 m\n40 m\n40 m\nVAL\nNot applicable\n50 m\n35 m\n10 m\nContinuity risk\n1,10–5/hour\n8,10–6/15 s\n8,10–6/15 s\n8,10–6/15 s\nSoL Service availability\n0,999\n0,99\n0,99 to 0,999\n0,99\nService area\nFlight information regions (FIRs) of EU-MS + Norway and Switzerland\nLandmasses of EU-MS + Norway and Switzerland\nLandmasses of EU-MS + Norway and Switzerland\nLandmasses of EU-MS + Norway and Switzerland\nTarget service area extension\nArticle 2(5) of Regulation (EU) No 1285/2013\nPerformance of reversion modes\nEGNOS V3 shall deliver LPV 200 service level over its Service Area with 99 % availability when reverting to the use of the Galileo constellation only.\nEGNOS V3 shall deliver LPV 200 service level in the land masses of the Service Area with 99 % availability upon complete loss of L5/E5a frequency at user level.\nGuarantee of service\nYes\nAccessibility\nThrough SBAS-compatible receivers\n4.2.\nMaritime service\nThe performance specifications included in this table address only signal-in-space contributions.\nNational (or territorial) waters are defined in the 1982 United Nations Convention on the Law of the Sea as waters extending at most 12 nautical miles from the coast line.\nNavigation in harbour entrances,Harbour approaches and coastal waters\nStandards\nIMO Resolution A.915(22) and A.1046(27)\nLateral accuracy\n10 m\nVertical accuracy\nNot applicable\nIntegrity risk\n1,10–5/3 hours\nTime To Alarm\n10 s\nHAL\n25 m\nVAL\nNot applicable\nContinuity risk\n3,10–4/15 minutes\nSoL Service availability\n0,998\nService Area\nNational Waters of EU-MS + Norway and Switzerland\nGuarantee of service\nYes\nAccessibility\nThrough SBAS-compatible receivers",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "The performance specifications included in this table address only signal-in-space contributions."
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "A range is given for service availability for approach procedure. The bottom of the range shall correspond to the availability expected for the GPS L1-only service. The top of the range shall be available for users equipped with a dual frequency GPS L1-L5 receiver or a combined GPS/Galileo dual-frequency receiver."
    },
    {
      "type": "footnote",
      "label": "f3",
      "text": "‘Land masses of an area’ means any land territory, including islands, in the FIR of that area except for the Cat I service for which coverage of Azores, Madeira and Canary Islands are excluded."
    },
    {
      "type": "footnote",
      "label": "f4",
      "text": "Until sufficient Galileo performance is demonstrated, APV-I service level is accepted."
    },
    {
      "type": "footnote",
      "label": "f5",
      "text": "The performance specifications included in this table address only signal-in-space contributions."
    },
    {
      "type": "footnote",
      "label": "f6",
      "text": "National (or territorial) waters are defined in the 1982 United Nations Convention on the Law of the Sea as waters extending at most 12 nautical miles from the coast line."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2015/1183/annex/division/4",
    "retrieved_at": "2026-11-01T15:14:17.723884+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."
}