{
  "url": "https://openlegislation.uk/nuclear-installations-dangerous-occurrences-regulations-1965/regulation-3",
  "json_url": "https://openlegislation.uk/nuclear-installations-dangerous-occurrences-regulations-1965/regulation-3.json",
  "legislation": "uksi/1965/1824",
  "legislation_title": "The Nuclear Installations (Dangerous Occurrences) Regulations 1965",
  "legislation_url": "https://openlegislation.uk/nuclear-installations-dangerous-occurrences-regulations-1965",
  "path": "regulation/3",
  "kind": "regulation",
  "number": "3",
  "heading": "Dangerous occurrences",
  "text": "(1) The Minister of Power and the Secretary of State hereby prescribe for the purposes of section 22(1) of the Act occurrences of each of the following classes or descriptions, that is to say—\n(a) any occurrence on a licensed site involving the emission of ionising radiations or the release of radioactive or toxic substances in such circumstances as to cause or be likely to cause—\n(i) the death of, or serious injury to the health of, persons outside the site at the time of the occurrence, whether or not persons on the site are also affected thereby; or\n(ii) the death of, or serious injury to the health of, persons on the site at the time of the occurrence;\n(b) any occurrence in the course of carriage of nuclear matter (not being excepted matter) on behalf of any person other than the Authority or a government department, being—\n(i) an occurrence which that person has reason to believe has caused or may be likely to cause the death of, or serious injury to the health of, any person by reason of the radioactive properties of such nuclear matter; or\n(ii) an occurrence involving the breaking open of any outside container in which such nuclear matter is being carried;\n(c) any explosion or outbreak of fire on a licensed site, being an explosion or outbreak affecting or likely to affect the safe working or safe condition of the nuclear installation;\n(d) any uncontrolled criticality excursion.\n(2) The requirements of sub-paragraphs (b), (c) and (d) of the last preceding paragraph shall be without prejudice to the generality of the requirements of sub-paragraph (a) thereof.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1965/1824/regulation/3",
    "retrieved_at": "2026-10-29T23:52:25.540406+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."
}