{
  "url": "https://openlegislation.uk/draft-environmental-permitting-england-and-wales-regulations-2010/regulation-20",
  "json_url": "https://openlegislation.uk/draft-environmental-permitting-england-and-wales-regulations-2010/regulation-20.json",
  "legislation": "ukdsi/2010/9780111491423",
  "legislation_title": "The Environmental Permitting (England and Wales) Regulations 2010",
  "legislation_url": "https://openlegislation.uk/draft-environmental-permitting-england-and-wales-regulations-2010",
  "path": "regulation/20",
  "kind": "regulation",
  "number": "20",
  "heading": "Variation of an environmental permit",
  "text": "(1) The regulator may vary an environmental permit on the application of the operator or on its own initiative.\n(2) A variation under this regulation must not reduce the extent of the site of a regulated facility.\n(3) Paragraph (2) does not apply if the variation relates to any part of an environmental permit (or if applicable, the whole permit) that authorises the operation of a regulated facility of the following description—\n(a) a Part B installation, except to the extent that it relates to a waste operation;\n(b) a stand-alone water discharge activity or stand-alone groundwater activity.\n(4) With respect to any part of an environmental permit (or if applicable, the whole permit) that authorises the carrying on of a stand-alone water discharge activity, a regulator must not, without the agreement of the operator, on its own initiative—\n(a) within 4 years after the grant of the permit, vary any condition of the permit that relates to the water discharge activity; or\n(b) within 4 years after the variation of a condition of the permit that relates to the water discharge activity, further vary that condition.\n(5) Paragraph (4) does not apply if—\n(a) the regulated facility is a standard facility; or\n(b) the regulator, on its own initiative, varies an environmental permit, or any condition of a permit, in order to comply with—\n(i) an obligation of the United Kingdom under the Community Treaties; or\n(ii) a direction given by the appropriate authority under regulation 61.\n(6) Part 1 of Schedule 5 applies in relation to an application for the variation of an environmental permit or a proposal to vary an environmental permit on the initiative of the regulator under paragraph (1).",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/ukdsi/2010/9780111491423/regulation/20",
    "retrieved_at": "2026-10-30T14:55:48.989463+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."
}