{
  "url": "https://openlegislation.uk/environmental-authorisations-scotland-regulations-2018/schedule-21/paragraph-3",
  "json_url": "https://openlegislation.uk/environmental-authorisations-scotland-regulations-2018/schedule-21/paragraph-3.json",
  "legislation": "ssi/2018/219",
  "legislation_title": "The Environmental Authorisations (Scotland) Regulations 2018",
  "legislation_url": "https://openlegislation.uk/environmental-authorisations-scotland-regulations-2018",
  "path": "schedule/21/paragraph/3",
  "kind": "paragraph",
  "number": "3",
  "heading": "Aggregation rules",
  "text": "(1) Where the waste gases of two or more separate combustion plants are discharged through a common stack—\n(a) the combination formed by such plants is to be considered a single combustion plant, and\n(b) their capacities added together for the purpose of calculating the total rated thermal input.\n(2) Where two or more separate combustion plants—\n(a) have been granted a permit for the first time on or after 1 July 1987 or in relation to which a complete application for a permit has been submitted on or after that date, and\n(b) are installed in such a way that taking technical and economic factors into account, their waste gases could, in the judgement of SEPA, be discharged through a common stack—\n(i) the combination formed by such plants is to be considered as a single combustion plant, and\n(ii) their capacities added for the purpose of calculating the total rated thermal input.\n(3) For the purpose of calculating the total rated thermal input of a combination of combustion plants referred to in sub-paragraphs (1) and (2), individual combustion plants with a rated thermal input below 15 MW are not to be considered.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Sch. 21 inserted (1.11.2025) by The Environmental Authorisations (Scotland) Amendment Regulations 2025 (S.S.I. 2025/165), reg. 1(2), sch. 12 (with sch. 23)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/ssi/2018/219/schedule/21/paragraph/3",
    "retrieved_at": "2026-10-28T21:11:56.403037+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."
}