Biocides: Upcoming EU active substance renewal submission deadlines and expiry dates
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HSE ebulletin

Issued: 2 July 2026

This ebulletin contains information on regulating biocides in Northern Ireland (NI).

Upcoming EU active substance renewal submission deadlines

Apply for active substance renewal by the relevant deadline to keep products on the NI market.

Under the EU Biocidal Products Regulation (EU BPR), active substance approvals will expire unless a renewal application is submitted to ECHA at least 550 days before their expiry date.

The 550-day deadlines are coming up for the following active substance/product type combinations under EU BPR. This affects NI:

28 September 2026

  • fludioxonil (CAS 131341-86-1 EC 603-476-3) in product types 7, 9 and 10

28 December 2026

  • 2-(2-butoxyethoxy)ethyl 6-propylpiperonyl ether (piperonyl butoxide/PBO) (CAS 51-03-6 EC 200-076-7) in product type 18
  • 2-methyl-1,2-benzothiazol-3(2H)-one (MBIT) (CAS 2527-66-4 EC 695-989-4) in product type 6
  • peracetic acid (CAS 79-21-0 EC 201-186-8) in product types 11 and 12

30 June 2027

  • 2-methyl-2H-isothiazol-3-one (MIT) (CAS 2682-20-4 EC 220-239-6) in product type 11
  • active chlorine released from calcium hypochlorite (CAS 7778-54-3 EC 231-908-7) in product types 2, 3, 4 and 5
  • active chlorine released from chlorine (CAS 7782-50-5 EC 231-959-5) in product types 2 and 5
  • active chlorine released from sodium hypochlorite (CAS 7681-52-9 EC 231-668-3) in product types 1, 2, 3, 4 and 5
  • peracetic acid generated from tetra-acetylethylenediamine (TAED) and sodium percarbonate (CAS 79-21-0 EC N/A) in product types 2, 3 and 4

28 December 2027

  • [2,4-dioxo-(2-propyn-1-yl)imidazolidin-3-yl]methyl(1R)-cis-chrysanthemate;[2,4- dioxo-(2-propyn-1-yl)imidazolidin-3-yl] methyl(1R)-trans-chrysanthemate (imiprothrin) (CAS 72963-72-5 EC 428-790-6) in product type 18

Any person, company or task force/consortium can support an active substance/product type combination for renewal – it doesn’t have to be the original supporter.

Check the EU 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 EU 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 NI.

In addition articles treated with such products will no longer be able to be placed on the market in NI.


Upcoming EU active substance expiry dates

Biocidal products must be phased off the NI market

The active substance/product type combinations listed are due to expire under the EU BPR on the following dates. This affects NI:

30 September 2026

  • (E)-1-(2-chloro-1,3-thiazol-5-ylmethyl)-3-methyl-2-nitroguanidine (clothianidin) (CAS 210880-92-5 EC 433-460-1) in product type 18
  • N-(trichloromethylthio)phthalimide (folpet) (CAS 133-07-3 EC 205-088-6) in product type 7

30 June 2027

  • epsilon-momfluorothrin (CAS 1065124-65-3 EC N/A) in product type 18
  • L-(+)-lactic acid (CAS 79-33-4 EC 201-196-2) in product type 1
  • polyhexamethylene biguanide hydrochloride with a mean number-average molecular weight (Mn) of 1600 and a mean polydispersity (PDI) of 1.8 (PHMB (1600;1.8)) (CAS 27083-27-8  / 32289-58-0 EC N/A) in product type 4


Once the approvals expire, the active substances will no longer be able to be used in biocidal products of the relevant product types in NI. In addition articles treated with such products will no longer be able to be placed on the market in NI.

If you hold an affected EU 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 combinations listed, please contact us.

RIDDOR: public consultation closing soon

A consultation is open on The Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013 (RIDDOR).  

It seeks stakeholder views on a range of proposals to help reduce work-related ill health, as one of HSE’s key strategic objectives.

The consultation runs until 7 July 2026.

View the consultation and submit comments: Consultation on proposals for RIDDOR.

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