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Changes from Seveso II to III

Although many duties are familiar from the 1999 Regulations, Seveso III has introduced a number of new or changed duties in the 2015 Regulations (PDF) [1] including:

  1. The list of substances covered by the Regulations has been updated and aligned to the CLP Regulation
  2. Some definitions have been changed
  3. There are transition arrangements for safety reports
  4. For emergency planning, there is a new requirement for co-operation by designated authorities in tests of the external emergency plan
  5. There are stronger requirements for the provision of public information, including a duty for lower-tier establishments to provide public information. There are provisions for electronic access to up-to-date public information.
  6. The domino effects duty is broader

Link URLs in this page

  1. 2015 Regulationshttps://www.hse.gov.uk/pubns/priced/l111.pdf
  2. Scottish Environment Protection Agencyhttps://www.sepa.org.uk/
  3. Natural Resources Wales/Cyfoeth Naturiol Cymru https://naturalresourceswales.gov.uk/splash?orig=/
  4. Department for Communities and Local Government – Planning Policyhttps://www.communities.gov.uk/planningandbuilding/about
  5. Scottish Government – Planning Policyhttps://www.gov.scot/publications/scottish-planning-policy/
  6. Welsh Government – Planning Policyhttps://gov.wales/planning-policy-wales
  7. European Chemicals Agency (ECHA) – Classification and Labelling Inventoryhttps://echa.europa.eu/web/guest/information-on-chemicals/cl-inventory
  8. COMAHhttps://www.hse.gov.uk/comah/index.htm
  9. Chemicalshttps://www.hse.gov.uk/chemicals/index.htm
  10. Chemical classificationhttps://www.hse.gov.uk/chemical-classification/classification/index.htm
  11. Land use planninghttps://www.hse.gov.uk/landuseplanning/index.htm

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Updated: 2025-02-05