{
  "url": "https://openlegislation.uk/air-navigation-noise-certification-order-1990/schedule-1/part-IX/paragraph-2",
  "json_url": "https://openlegislation.uk/air-navigation-noise-certification-order-1990/schedule-1/part-IX/paragraph-2.json",
  "legislation": "uksi/1990/1514",
  "legislation_title": "The Air Navigation (Noise Certification) Order 1990",
  "legislation_url": "https://openlegislation.uk/air-navigation-noise-certification-order-1990",
  "path": "schedule/1/part/IX/paragraph/2",
  "kind": "paragraph",
  "number": "2",
  "heading": null,
  "text": "The noise levels required by paragraph 3 of this Part of this Schedule shall be measured at the following points—\n(a) on take-off—\n(i) at a flight path reference point located on the ground vertically below the flight path defined in the take-off reference procedure and 500 metres horizontally in the direction of flight from the point at which transition to climbing flight is initiated in the reference procedure;\n(ii) at two other points on the ground symmetrically disposed about the flight path defined in the take-off reference procedure and lying on a horizontal line through the flight path reference point at right angles to the direction of flight at a distance of 150 metres.\n(b) on overflight—\n(i) at a flight path reference point located on the ground 150 metres vertically below the flight path defined in the overflight reference procedure;\n(ii) at two other points on the ground symmetrically disposed about the flight path defined in the approach reference procedure and lying on a horizontal line through the flight path reference point at right angles to the direction of flight at a distance of 150 metres.\n(c) on approach—\n(i) at a flight path reference point located on the ground 120 metres vertically below the flight path defined in the approach reference procedure;\n(ii) at two other points on the ground symmetrically disposed about the flight path defined in the approach reference procedure and lying on a horizontal line through the flight path reference point at right angles to the direction of flight at a distance of 150 metres.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [
    {
      "type": "omitted",
      "affecting": "uksi/1999/1452",
      "affecting_title": "The Aeroplane Noise Regulations 1999"
    },
    {
      "type": "omitted",
      "affecting": "uksi/1999/1452",
      "affecting_title": "The Aeroplane Noise Regulations 1999"
    },
    {
      "type": "omitted",
      "affecting": "uksi/1999/1452",
      "affecting_title": "The Aeroplane Noise Regulations 1999"
    },
    {
      "type": "omitted",
      "affecting": "uksi/1999/1452",
      "affecting_title": "The Aeroplane Noise Regulations 1999"
    }
  ],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1990/1514/schedule/1/part/IX/paragraph/2",
    "retrieved_at": "2026-10-29T15:11:26.873786+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."
}