{
  "url": "https://openlegislation.uk/environment-act-1995/section-91",
  "json_url": "https://openlegislation.uk/environment-act-1995/section-91.json",
  "legislation": "ukpga/1995/25",
  "legislation_title": "Environment Act 1995",
  "legislation_url": "https://openlegislation.uk/environment-act-1995",
  "path": "section/91",
  "kind": "section",
  "number": "91",
  "heading": "Interpretation of Part IV.",
  "text": "(1) In this Part—\n“action plan” is to be construed—\n(a)in relation to England, in accordance with section 83A;\n(aa)in relation to Wales, in accordance with section 83B;\n(c)otherwise, in accordance with section 84(2);\n“air quality objectives” means objectives prescribed by virtue of section 87(2)(b) above;\n“air quality partner” has the meaning given by section 85A(1);\n“air quality review” means a review under section 82 or 85 above;\n“air quality standards” means standards prescribed by virtue of section 87(2)(a) above;\n“the appropriate agency” means—\n(a)in relation to England, the Agency;\n(b)in relation to Wales, the Natural Resources Body for Wales;\n(c)in relation to Scotland, SEPA;\n“designated area” has the meaning given by section 83(1) above;\n“local authority”, in relation to England and Wales, means—\n(a)any unitary authority,\n(b)any district council, so far as it is not a unitary authority,\n(c)the Common Council of the City of London and, as respects the Temples, the Sub-Treasurer of the Inner Temple and the Under-Treasurer of the Middle Temple respectively,\nand, in relation to Scotland, means a council for an area constituted under section 2 of the Local Government etc. (Scotland) Act 1994;\n“neighbouring authority”, in relation to a local authority (“the principal authority”), means another local authority whose area is contiguous with the area of the principal authority;\n“new Agency” means the Agency or SEPA;\n“prescribed” means prescribed, or of a description prescribed, by or under regulations;\n“regulations” means regulations made by the Secretary of State;\n“the relevant period”, in the case of any provision of this Part, means such period as may be prescribed for the purposes of that provision;\n“relevant public authority” has the meaning given by section 81A(2);\n“relevant Welsh public authority” has the meaning given by section 81B(2);\n“the strategy” has the meaning given by section 80(1) above;\n“unitary authority” means—\n(a)the council of a county, so far as it is the council of an area for which there are no district councils;\n(b)the council of any district comprised in an area for which there is no county council;\n(c)the council of a London borough;\n(d)the council of a county borough in Wales.\n(2) Any reference in this Part to it appearing that any air quality standards or objectives are not likely within the relevant period to be achieved includes a reference to it appearing that those standards or objectives are likely within that period not to be achieved.",
  "extent": "E+W+S",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Words in s. 91(1) substituted (1.5.2022) by Environment Act 2021 (c. 30), s. 147(3), Sch. 11 para. 13(a) (with s. 144); S.I. 2022/48, reg. 4(c)"
    },
    {
      "type": "F",
      "label": "F2",
      "text": "Words in s. 91(1) inserted (E.W.) (31.7.2025) by Environment (Air Quality and Soundscapes) (Wales) Act 2024 (asc 2), ss. 17(3), 30(3); S.I. 2025/937, art. 2(b)"
    },
    {
      "type": "F",
      "label": "F3",
      "text": "Words in s. 91(1) inserted (1.5.2022) by Environment Act 2021 (c. 30), s. 147(3), Sch. 11 para. 13(b) (with s. 144); S.I. 2022/48, reg. 4(c)"
    },
    {
      "type": "F",
      "label": "F4",
      "text": "Words in s. 91(1) substituted (1.4.2013) by The Natural Resources Body for Wales (Functions) Order 2013 (S.I. 2013/755), art. 1(2), Sch. 2 para. 380 (with Sch. 7)"
    },
    {
      "type": "F",
      "label": "F5",
      "text": "Words in s. 91(1) inserted (E.W.) (14.4.2024) by Environment (Air Quality and Soundscapes) (Wales) Act 2024 (asc 2), ss. 14(4), 30(2)(d)"
    },
    {
      "type": "M",
      "label": "M1",
      "text": "1994 c. 39."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/ukpga/1995/25/section/91",
    "retrieved_at": "2026-10-29T09:33:02.335333+00:00",
    "licence": "OGL-UK-3.0",
    "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."
  }
}