Take action to keep your active substance in the GB Review Programme The active substance/product type combinations listed have been successfully notified into the GB Review Programme following an open invitation. The next step is for a full active substance dossier to be submitted to HSE by the following deadline: 17 April 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
Only the person, company or task force/consortium that successfully notified the active substance/product type combinations listed 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. This means the active substance will no longer be able to be used in biocidal products of the relevant product types in GB. In addition articles treated with such products will no longer be able to be placed on the market in GB. HSE will provide separate updates on these where relevant. Apply for active substance renewal by the deadlines to keep products on the GB market Under the GB Biocidal Products Regulation (GB BPR), active substance approvals will expire unless a renewal application is submitted at least 550 days before their expiry date.
The 550-day deadlines are coming up for the following active substance/product type combinations under GB BPR: 29 April 2025 - Polyhexamethylene biguanide hydrochloride with a mean number-average molecular weight (Mn) of 1415 and a mean polydispersity (PDI) of 4.7 (PHMB (1415;4.7)) (CAS 1802181-67-4 / 32289-58-0 EC n/a) in product types 2 and 4
30 July 2025 - Hydrogen peroxide (CAS 7722-84-1 EC 231-765-0) in product types 1, 2, 3, 4, 5 and 6
- N-((6-chloro-3-pyridinyl)methyl)-Nâ²-cyano-N-methylethanimidamide (acetamiprid) (CAS 135410-20-7 EC 603-921-1) in product type 18
Any person, company or task force/consortium can support an active substance/product type combination for renewal â it doesnât have to be the original supporter.
Check the GB Article 95 List to see who the original supporters were
If any of these active substance/product type combinations are important to you, consider contacting your supplier to let them know.
If a renewal application is not submitted for the above active substance/product type combinations under GB BPR, the approvals will expire. This means the active substances will no longer be able to be used in biocidal products of the relevant product types in GB.
In addition articles treated with such products will no longer be able to be placed on the market in GB. Biocidal products must be phased off the GB market
The active substance/product type combination listed below is due to expire under the GB BPR on the following date: 30 April 2025
- 4-bromo-2-(4-chlorophenyl)-1-ethoxymethyl-5-trifluoromethylpyrrole-3-carbonitrile (chlorfenapyr) (CAS 122453-73-0 EC n/a) in product type 8
Once the approval expires, the active substance will no longer be able to be used in biocidal products of the relevant product type in GB. In addition articles treated with such products will no longer be able to be placed on the market in GB. 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 the active substance/product type combination listed above, please contact us. | 
