{
  "url": "https://openlegislation.uk/dark-smoke-permitted-periods-regulations-1958/introduction",
  "json_url": "https://openlegislation.uk/dark-smoke-permitted-periods-regulations-1958/introduction.json",
  "legislation": "uksi/1958/498",
  "legislation_title": "The Dark Smoke (Permitted Periods) Regulations 1958",
  "legislation_url": "https://openlegislation.uk/dark-smoke-permitted-periods-regulations-1958",
  "path": "introduction",
  "kind": "introduction",
  "number": null,
  "heading": "Introductory text",
  "text": "SMOKE\nMade 24th March 1958\nLaid before Parliament 27th March 1958\nComing into Operation 1st June 1958\nThe Minister of Housing and Local Government, in exercise of his powers under subsection (2) of section 1 of the Clean Air Act, 1956, and of all other powers enabling him in that behalf, hereby makes the following regulations:—",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1958/498/introduction",
    "retrieved_at": "2026-10-30T01:03:34.826575+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."
}