{
  "url": "https://openlegislation.uk/radioactive-substances-smoke-detectors-exemption-order-1980/article-2",
  "json_url": "https://openlegislation.uk/radioactive-substances-smoke-detectors-exemption-order-1980/article-2.json",
  "legislation": "uksi/1980/953",
  "legislation_title": "The Radioactive Substances (Smoke Detectors) Exemption Order 1980",
  "legislation_url": "https://openlegislation.uk/radioactive-substances-smoke-detectors-exemption-order-1980",
  "path": "article/2",
  "kind": "article",
  "number": "2",
  "heading": "Interpretation",
  "text": "(1) In this order—\n“the Act” means the Radioactive Substances Act 1960;\n“closed source” means a homogeneous source, a laminated source or a sealed source;\n“decay products” means, in relation to any radionuclide, the radionuclides succeeding it in the radioactive series in which it and they occur;\n“homogeneous source” means an article free from patent defect which—\n(a) is made wholly from a substance which—\n(i) is solid, coherent, homogenous and tough; and\n(ii) is radioactive material or a mixture of radioactive material and material which is not radioactive material, or\n(b) is made partly from, or incorporates, such a substance and is radioactive material solely because of the presence of that substance;\n“incorporated source” means a closed source incorporated in a smoke detector;\n“laminated source” means an article free from patent defect consisting of a layer of coherent radioactive material sandwiched between and securely bonded to layers of coherent, inert and tough material which is not radioactive material;\n“sealed source” means radioactive material sealed in a container (otherwise than solely for the purpose of storage, transport or disposal) or bonded wholly within material, the immediate container or the bonding being of adequate mechanical strength and free from patent defect and not being radioactive material; and includes the immediate container or the bonding;\n“the Secretary of State” means the Secretary of State for the Environment as respects England, and the Secretary of State for Wales as respects Wales;\n“smoke detector” means any apparatus, equipment or appliance designed or constructed for the purpose of detecting smoke;\n“waste collection authority” means a local authority which is a collection authority within the meaning of section 30 of the Control of Pollution Act 1974.\n(2) Any reference in this order to a numbered Article shall be construed as a reference to the Article bearing that number in the order.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [
    {
      "type": "revoked",
      "affecting": "uksi/1991/477",
      "affecting_title": "The Radioactive Substances (Smoke Detectors) Exemption (Amendment) Order 1991"
    }
  ],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1980/953/article/2",
    "retrieved_at": "2026-10-29T18:58:19.849325+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."
}