{
  "url": "https://openlegislation.uk/coal-and-other-mines-ventilation-variation-regulations-1966/note",
  "json_url": "https://openlegislation.uk/coal-and-other-mines-ventilation-variation-regulations-1966/note.json",
  "legislation": "uksi/1966/1139",
  "legislation_title": "The Coal and Other Mines (Ventilation) (Variation) Regulations 1966",
  "legislation_url": "https://openlegislation.uk/coal-and-other-mines-ventilation-variation-regulations-1966",
  "path": "note",
  "kind": "note",
  "number": null,
  "heading": "Explanatory note",
  "text": "Regulation 5 of the Coal and Other Mines (Ventilation) Regulations 1956 prescribes places at which determinations of firedamp content are required to be made at longwall faces by virtue of the use of electric power at or within one hundred and fifty feet of that face, or by virtue of the firing of shots. Regulation 7 prescribes the intervals at which such determinations are to be made.\nThese regulations add to those provisions by requiring determinations to be made at the junction of the return airway serving such a longwall face with any other return airway, upon the same occasions as those upon which determinations are by regulation 5 required to be made, at or as near as is practicable to the point in that airway thirty feet from the nearest working place at the face which it serves.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1966/1139/note",
    "retrieved_at": "2026-10-29T23:43:04.762104+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."
}