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HSE Biocides ebulletin

Issued: 2 February 2024

This ebulletin contains information on regulating biocides in Great Britain (GB). 

The GB Biocidal Products Regulation (GB BPR) operates independently from the EU Biocidal Products Regulation (EU BPR), which applies in Northern Ireland.

Separate ebulletins containing information specific to regulating biocides in Northern Ireland are issued as appropriate.

Upcoming GB active substance expiry dates

Biocidal products must be phased off the GB market

The active substance/product type combinations listed below are due to expire under the GB BPR on the following dates:

• Margosa extract from the kernels of Azadirachata Indica extracted with water and further processed with organic solvents (CAS 84696-25-3 EC 283-644-7) in product type 18
  30 April 2024
  
  
• Undecan-2-one (methyl nonyl ketone) (CAS 112-12-9 EC 203-937-5) in product type 19
  30 April 2024
  
  
• 1-(4-chlorophenyl)-3-(2,6-difluorobenzoyl)urea (Diflubenzuron) (CAS 35367-38-5 EC 252-529-3) in product type 18
  31 January 2025
  
  
• Formaldehyde (CAS 50-00-0 EC 200-001-8) in product type 2
  31 January 2025
  
  
• Powdered corn cob (CAS n/a EC n/a) in product type 14
  31 January 2025
  
  
• Thiamethoxam (CAS 153719-23-4 EC 428-650-4) in product type 18
  31 January 2025
  
  
• 4-bromo-2-(4-chlorophenyl)-1-ethoxymethyl-5-trifluoromethylpyrrole-3-carbonitrile (Chlorfenapyr) (CAS 122453-73-0 EC n/a) in product type 8
  30 April 2025

Once the approvals expire, the active substances can no longer be used in biocidal products or treated articles of the relevant product types in Great Britain.

If you hold an affected GB BPR product authorisation or Control of Pesticides Regulations (COPR) product approval, we will contact you about cancelling or revoking your authorisation or approval. You will have an opportunity to submit comments or additional information and we will take account of these when finalising our decision.

If you are aware of any disproportionate negative impacts that are likely to arise from the expiry of any of the active substance/product type combinations listed above, please contact us.

Upcoming GB active substance dossier submission deadlines

Take action to keep your active substance in the GB Review Programme

The active substance/product type combinations listed below have been successfully notified into the GB Review Programme following open invitations. The next step is for a full active substance dossier to be submitted to HSE by the following deadlines:

• N-Didecyl-N-dipolyethoxyammonium borate / Didecylpolyoxethylammonium (Polymeric betaine) (CAS 214710-34-6 EC n/a) in product type 8
  5 January 2025
  
  
• Active chlorine generated from sodium chloride by electrolysis (CAS 7782-50-5 EC n/a) in product types 2, 3, 4, 5 and 11
  17 April 2025

Only the person, company or task force/consortium that successfully notified the active substance/product type combinations listed above can submit a dossier.

If any of these active substance/product type combinations are important to you, consider contacting the notifier to let them know. You may even be able to join them in supporting the active substance.

Check the list of successful notifiers

If a dossier is not submitted by the deadline, these active substance/product type combinations will be subject to a GB non-approval decision. Biocidal products and treated articles containing active substances with GB non-approval decisions for the relevant product types will have to be removed from the GB market. HSE will provide separate updates on these where relevant.