{
  "url": "https://openlegislation.uk/rules-of-the-air-regulations-1996/schedule-FIRST/paragraph-25",
  "json_url": "https://openlegislation.uk/rules-of-the-air-regulations-1996/schedule-FIRST/paragraph-25.json",
  "legislation": "uksi/1996/1393",
  "legislation_title": "The Rules of the Air Regulations 1996",
  "legislation_url": "https://openlegislation.uk/rules-of-the-air-regulations-1996",
  "path": "schedule/FIRST/paragraph/25",
  "kind": "paragraph",
  "number": "25",
  "heading": "Flight within controlled airspace",
  "text": "(1) Within Class B airspace:\n(a) an aircraft flying within Class B airspace at or above flight level 100 shall remain clear of cloud and in a flight visibility of at least 8 km;\n(b) an aircraft flying within Class B airspace below flight level 100 shall remain clear of cloud and in a flight visibility of at least 5 km.\n(2) Within Class C, Class D or Class E airspace:\n(a) an aircraft flying within Class C, Class D or Class E airspace at or above flight level 100 shall remain at least 1500 metres horizontally and 1000 feet vertically away from cloud and in a flight visibility of at least 8 km;\n(b) subject to sub-paragraph (c), an aircraft flying within Class C, Class D or Class E airspace below flight level 100 shall remain at least 1500 metres horizontally and 1000 feet vertically away from cloud and in a flight visibility of at least 5 km;\n(c) sub-paragraph (b) shall be deemed to be complied with if:\n(i) the aircraft is not a helicopter and is flying at or below 3000 feet above mean sea level at a speed which, according to its airspeed indicator, is 140 knots or less and it remains clear of cloud, in sight of the surface and in a flight visibility of at least 5 km; or\n(ii) the aircraft is a helicopter flying at or below 3000 feet above mean sea level and it remains clear of cloud and in sight of the surface.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [
    {
      "type": "amended",
      "affecting": "uksi/1999/1323",
      "affecting_title": "The Rules of the Air (Amendment) Regulations 1999"
    },
    {
      "type": "amended",
      "affecting": "uksi/1999/1323",
      "affecting_title": "The Rules of the Air (Amendment) Regulations 1999"
    },
    {
      "type": "amended",
      "affecting": "uksi/1999/1323",
      "affecting_title": "The Rules of the Air (Amendment) Regulations 1999"
    },
    {
      "type": "amended",
      "affecting": "uksi/1999/1323",
      "affecting_title": "The Rules of the Air (Amendment) Regulations 1999"
    },
    {
      "type": "amended",
      "affecting": "uksi/1999/1323",
      "affecting_title": "The Rules of the Air (Amendment) Regulations 1999"
    },
    {
      "type": "amended",
      "affecting": "uksi/1999/1323",
      "affecting_title": "The Rules of the Air (Amendment) Regulations 1999"
    },
    {
      "type": "subst",
      "affecting": "uksi/2005/1110",
      "affecting_title": "The Rules of the Air (Amendment) Regulations 2005"
    },
    {
      "type": "am",
      "affecting": "uksi/2003/64",
      "affecting_title": "The Rules of the Air (Amendment) Regulations 2003"
    }
  ],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1996/1393/schedule/FIRST/paragraph/25",
    "retrieved_at": "2026-10-29T12:43:02.663213+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."
}