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Biocides: introduction to regulation, supply and use

A biocide is a chemical substance, mixture, or microorganism intended to control any harmful organism in a way that is not purely physical or mechanical.

Biocidal products

Biocidal products are used to protect people and animals, preserve goods, stop pests like insects or rodents and control viruses, bacteria and fungi through a chemical or biological action. Common examples are disinfectants, wood preservatives and insect repellents.

Typically a biocidal product will be a mixture of chemicals and will include the 'active substance'. The active substance has the controlling effect on the harmful organism.

Biocidal products can also be:

  • 100% active substance with no other components
  • articles that have been impregnated with the active substance, such as disinfecting wipes
  • bacteria, viruses or other micro-organisms

Biocidal products without an active substance

The active substance could be created when the product is used, either from:

  • mixing the product with another chemical
  • a reaction with the air or moisture

This is called 'in-situ generation'. It’s still covered by the law, even if no products are supplied and the biocide is generated from everyday things. For example, when a machine generates ozone from oxygen in the air to be used as a disinfectant.

More about in-situ generation[67]

Treated articles

A treated article is something which has been treated with, or intentionally includes, one or more biocidal products; for example wood that has been treated with a preservative to protect it from decay, is known as a treated article.

More about treated articles[68]

Biocides law

Biocidal products are controlled in:

  • Great Britain (England, Scotland and Wales) under the GB Biocidal Products Regulation (GB BPR)
  • Northern Ireland under the EU Biocidal Products Regulation (EU BPR)

These regulations make sure that when biocidal products are used properly, they do not harm people, pets or the wider environment.

Some types of biocidal product have other more specific legislation that applies to them in the UK. For example, pesticides, human medicines, medical devices, veterinary medicines and cosmetics.

Check your product is regulated as a biocidal product[69]

Importing or making a biocidal product available on the market

Making available on the market means any supply of a biocidal product, whether in return for payment or free of charge, at all stages of the supply chain. Some examples of this could include:

  • manufacturer to distributor
  • distributor to retail store
  • retail store to user

If you want to import or make a biocidal product available on the market in Great Britain or Northern Ireland the biocidal product must comply with the relevant regulations.

A biocidal product must be authorised before it can be made available on the market. Before the product can be authorised, the active substance or substances it contains or generates must be approved for use in that product type.

How to get a biocidal product on the market[70]

Using biocidal products

If you use biocides in your workplace or home you’re responsible for using them correctly so they do not cause harm to people, pets, the environment or wildlife.

Using, storing and disposing of biocides safely.[71]

Reporting an incident or exposure

If a person, animal or the environment is affected by exposure to a biocide:

  1. seek medical or veterinary advice
  2. report it to the appropriate authorities

Who to contact to report an incident or exposure[72]

Further help

If you can’t find what you need on our website you can contact us[73].

Link URLs in this page

  1. Biocideshttps://www.hse.gov.uk/biocides/index.htm
  2. Biocides: Introductionhttps://www.hse.gov.uk/biocides/introduction.htm
  3. Overviewhttps://www.hse.gov.uk/biocides/regulated/index.htm
  4. Biocides: active substance statushttps://www.hse.gov.uk/biocides/checking/index.htm
  5. Importing and exportinghttps://www.hse.gov.uk/biocides/importing.htm
  6. Certificates of Free Sale and Export Statementshttps://www.hse.gov.uk/biocides/certificates-of-freesale.htm
  7. Treated articleshttps://www.hse.gov.uk/biocides/treated-articles.htm
  8. Monitoring trapshttps://www.hse.gov.uk/biocides/monitoring-traps.htm
  9. Article 3(3) decisions on scopehttps://www.hse.gov.uk/biocides/decisions-on-scope.htm
  10. In situ generationhttps://www.hse.gov.uk/biocides/in-situ-generation.htm
  11. Get product on UK markethttps://www.hse.gov.uk/biocides/market.htm
  12. Overviewhttps://www.hse.gov.uk/biocides/using.htm
  13. Honey beeshttps://www.hse.gov.uk/biocides/honey-bees.htm
  14. Rodenticideshttps://www.hse.gov.uk/biocides/rodenticides.htm
  15. Reporting exposurehttps://www.hse.gov.uk/biocides/reporting.htm
  16. Biocides enforcementhttps://www.hse.gov.uk/biocides/enforcement.htm
  17. Authorities and activitieshttps://www.hse.gov.uk/biocides/enforcement-authorities.htm
  18. Overviewhttps://www.hse.gov.uk/biocides/active-substance-approval.htm
  19. UK Review Programmehttps://www.hse.gov.uk/biocides/review-regulation.htm
  20. Active substances: How to applyhttps://www.hse.gov.uk/biocides/how-to-apply.htm
  21. Simplified active substanceshttps://www.hse.gov.uk/biocides/simplified-actives.htm
  22. The GB List of Active Substanceshttps://www.hse.gov.uk/biocides/uk-list-active-substances.htm
  23. GB Article 95: The basicshttps://www.hse.gov.uk/biocides/uk-article-95-basics.htm
  24. GB Article 95: How to applyhttps://www.hse.gov.uk/biocides/uk-article-95-how-to-apply.htm
  25. The GB Article 95 Listhttps://www.hse.gov.uk/biocides/uk-article-95-list.htm
  26. Technical equivalence of an active substancehttps://www.hse.gov.uk/biocides/technical-equivalence.htm
  27. Overviewhttps://www.hse.gov.uk/biocides/product-authorisation-overview.htm
  28. National authorisationhttps://www.hse.gov.uk/biocides/national-authorisation.htm
  29. Simplified authorisationhttps://www.hse.gov.uk/biocides/simplified-product-authorisation.htm
  30. Same biocidal product authorisationhttps://www.hse.gov.uk/biocides/same-biocidal-product.htm
  31. Change or cancel a biocidal product authorisationhttps://www.hse.gov.uk/biocides/change/index.htm
  32. Renew an existing product authorisationhttps://www.hse.gov.uk/biocides/renew.htm
  33. Research and developmenthttps://www.hse.gov.uk/biocides/research.htm
  34. Essential use authorisationhttps://www.hse.gov.uk/biocides/essential-use-authorisation.htm
  35. Critical situation permitshttps://www.hse.gov.uk/biocides/critical-situation-permits.htm
  36. Food and feed derogationshttps://www.hse.gov.uk/biocides/derogation.htm
  37. Unfettered access notificationhttps://www.hse.gov.uk/biocides/unfettered-access-notification.htm
  38. Overviewhttps://www.hse.gov.uk/biocides/uk-authorised-biocidal-products.htm
  39. Advertisement requirementshttps://www.hse.gov.uk/biocides/advertisement-requirements.htm
  40. Packaging and labelling requirementshttps://www.hse.gov.uk/biocides/packaging-labelling-requirements.htm
  41. Record keepinghttps://www.hse.gov.uk/biocides/recording-keeping-reporting.htm
  42. Informing NPIShttps://www.hse.gov.uk/biocides/informing-npis.htm
  43. Overviewhttps://www.hse.gov.uk/biocides/data-protection.htm
  44. Access to documents: Biocidal active substances and productshttps://www.hse.gov.uk/biocides/access-to-documents.htm
  45. Data sharing in GBhttps://www.hse.gov.uk/biocides/data-sharing.htm
  46. Vertebrate testinghttps://www.hse.gov.uk/biocides/vertebrate-testing.htm
  47. GB BPR feeshttps://www.hse.gov.uk/biocides/fees.htm
  48. Biocides regulationshttps://www.hse.gov.uk/biocides/regulations.htm
  49. Northern Irelandhttps://www.hse.gov.uk/biocides/northern-ireland.htm
  50. Existing products: Transfer to GB BPRhttps://www.hse.gov.uk/biocides/transfer-from-uk-national-law.htm
  51. Overviewhttps://www.hse.gov.uk/biocides/copr/index.htm
  52. COPR approval: how to applyhttps://www.hse.gov.uk/biocides/copr/application.htm
  53. COPR product approval typeshttps://www.hse.gov.uk/biocides/copr/approvals.htm
  54. COPR approved productshttps://www.hse.gov.uk/biocides/copr/approved.htm
  55. COPR feeshttps://www.hse.gov.uk/biocides/copr/fees.htm
  56. COPR labellinghttps://www.hse.gov.uk/biocides/copr/labelguidance.htm
  57. Conditions of approvalhttps://www.hse.gov.uk/biocides/copr/conditions.htm
  58. Open invitations and notificationshttps://www.hse.gov.uk/biocides/open-invitations-notifications.htm
  59. Consultations and surveyshttps://www.hse.gov.uk/biocides/consultations.htm
  60. Consultations: Submitting informationhttps://www.hse.gov.uk/biocides/consultations-submitting.htm
  61. Overviewhttps://www.hse.gov.uk/biocides/information.htm
  62. Glossaryhttps://www.hse.gov.uk/biocides/glossary.htm
  63. Useful linkshttps://www.hse.gov.uk/biocides/links.htm
  64. Contacthttps://www.hse.gov.uk/biocides/contact.htm
  65. Service standardshttps://www.hse.gov.uk/biocides/servicestandards.htm
  66. Temporary changes to GB biocides application processing timeshttps://www.hse.gov.uk/biocides/temporary-changes-application-processing-time.htm
  67. More about in-situ generationhttps://www.hse.gov.uk/biocides/in-situ-generation.htm
  68. More about treated articleshttps://www.hse.gov.uk/biocides/treated-articles.htm
  69. Check your product is regulated as a biocidal producthttps://www.hse.gov.uk/biocides/regulated/index.htm
  70. How to get a biocidal product on the markethttps://www.hse.gov.uk/biocides/market.htm
  71. Using, storing and disposing of biocides safely.https://www.hse.gov.uk/biocides/using.htm
  72. Who to contact to report an incident or exposurehttps://www.hse.gov.uk/biocides/reporting.htm
  73. contact ushttps://www.hse.gov.uk/biocides/contact.htm

Glossary of abbreviations/acronyms on this page

COPR
Control of Pesticides Regulations

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Updated 2025-03-12