{
  "url": "https://openlegislation.uk/environmental-authorisations-scotland-regulations-2018/schedule-19/paragraph-4",
  "json_url": "https://openlegislation.uk/environmental-authorisations-scotland-regulations-2018/schedule-19/paragraph-4.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/19/paragraph/4",
  "kind": "paragraph",
  "number": "4",
  "heading": "Interpretation: substantial change",
  "text": "(1) In this schedule and schedules 20 – 24, “substantial change” means—\n(a) a change in the nature or functioning, or an extension, of an installation or combustion plant, waste incineration or waste co-incineration plant which SEPA considers may—\n(i) have significant negative effect on human health or the environment, or\n(ii) which in itself constitutes the carrying on of an activity to which any of schedules 20-24 apply, that reaches any threshold capacity specified in those schedules and includes the activities in sub-paragraphs (2) and (3),\n(b) the carrying on of an organic solvents emissions activity—\n(i) where there is a change of the nominal capacity leading to an increase in emissions of volatile organic compounds of more than 10 percent, unless sub-head (ii) applies,\n(ii) this sub-head applies where an organic solvents emissions activity—\n(aa) falls within the lower threshold band of items 1, 3a, 3b, 4, 5, 8, 10, 13, 16 or 17 of Table 2 in schedule 23, or\n(bb) falls under one of the other items of table 2 in schedule 23 and has a solvent consumption of less than 10 tonnes per year.\n(iii) where sub-head (ii) applies, where there is a change of the nominal capacity leading to an increase in emissions of volatile organic compounds of more than 25 percent,\n(c) a change in the operation of a waste incineration plant or waste co-incineration plant in an installation which involves the incineration and co-incineration for the first time of hazardous waste.\n(2) In this paragraph—\n“nominal capacity” means the maximum mass input of organic solvents at the installation averaged over one day, if that installation is operated at its design output under conditions other than start up and shut down operations or relating to the maintenance of equipment.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Sch. 19 inserted (1.11.2025) by The Environmental Authorisations (Scotland) Amendment Regulations 2025 (S.S.I. 2025/165), reg. 1(2), sch. 10 (with sch. 23)"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/ssi/2018/219/schedule/19/paragraph/4",
    "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."
}