{
  "url": "https://openlegislation.uk/air-quality-standards-wales-regulations-2007/regulation-5",
  "json_url": "https://openlegislation.uk/air-quality-standards-wales-regulations-2007/regulation-5.json",
  "legislation": "wsi/2007/717",
  "legislation_title": "The Air Quality Standards (Wales) Regulations 2007",
  "legislation_url": "https://openlegislation.uk/air-quality-standards-wales-regulations-2007",
  "path": "regulation/5",
  "kind": "regulation",
  "number": "5",
  "heading": "Zones and agglomerations",
  "text": "(1) The National Assembly must, for the purposes of this Part, divide the territory of Wales into zones.\n(2) A zone is to be classified as an agglomeration for the purposes of this Part where—\n(a) it comprises a population in excess of 250,000 inhabitants; or\n(b) in any other case, it has a population density per km2 for which the National Assembly considers that such a classification is justified.\n(3) The National Assembly may establish different zones for different pollutants where it considers it appropriate.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/wsi/2007/717/regulation/5",
    "retrieved_at": "2026-10-29T00:01:33.213395+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."
}