This page provides announcements on GB expiry date postponements for active substance/product type combinations. It lists groups of active substances whose expiry dates have been postponed as part of larger batch decisions.
Further details are available in the relevant ministerial decisions or under the GB Biocidal Products Regulations.
Note this page does not provide a comprehensive list of all expiry date postponements in GB. For the current status and expiry dates of active substances, please refer to the BPR active substance list for GB and NI.
Subscribe to the HSE biocides eBulletin for updates on future active substance expiry date postponements.
Biocides GB expiry date postponements: May 2026
GB Biocidal Product Regulations have been amended affecting all biocidal active substance and product type combinations which expire between 23 June 2026 and 30 July 2031. The amendment postpones those active substance expiry dates until 31 July 2031.
This amendment will impact up to 173 active substance/product type combinations. The expiry date postponements are subject to a timely renewal application being submitted and accepted. The 105 active substance/product type combinations shown in the table below have met these requirements and the expiry dates are postponed until 31 July 2031.
| Active substance name | CAS number | EC number | Product type | Previous expiry date | New expiry date |
|---|---|---|---|---|---|
| 1R-trans-phenothrin | 20427-59-2 | 247-431-2 | PT18 | 31 January 2027 | 31 July 2031 |
| DCOIT | 64359-81-5 | 264-843-8 | PT08 | 31 January 2027 | 31 July 2031 |
| DCOIT | 64359-81-5 | 264-843-8 | PT21 | 31 January 2027 | 31 July 2031 |
| ADBAC/BKC (C12-16) | 68424-85-1 | 270-325-2 | PT08 | 31 January 2027 | 31 July 2031 |
| Alphachloralose | 15879-93-3 | 240-016-7 | PT14 | 31 January 2027 | 31 July 2031 |
| Alpha-cypermethrin | 67375-30-8 | 614-054-3 | PT18 | 31 January 2027 | 31 July 2031 |
| Aluminium phosphide releasing phosphine | 28772-56-7 | 244-088-0 | PT14 | 31 January 2027 | 31 July 2031 |
| Aluminium phosphide releasing phosphine | 20859-73-8 | 244-088-0 | PT20 | 31 January 2027 | 31 July 2031 |
| Azoxystrobin | 131860-33-8 | 603-524-3 | PT07 | 31 January 2027 | 31 July 2031 |
| Azoxystrobin | 131860-33-8 | 603-524-3 | PT09 | 31 January 2027 | 31 July 2031 |
| Azoxystrobin Bacillus thuringiensis subsp. israelensis | 131860-33-8 | 603-524-3 | PT10 | 31 January 2027 | 31 July 2031 |
| Serotype H14, Strain AM65-52 | N/A | N/A | PT18 | 31 January 2027 | 31 July 2031 |
| Basic copper carbonate | 12069-69-1 | 235-113-6 | PT08 | 31 January 2027 | 31 July 2031 |
| bis(N-cyclohexyl-diazenium-dioxy)-copper (Cu-HDO) | 312600-89-8 | 239-703-4 | PT08 | 31 January 2027 | 31 July 2031 |
| Boric acid | 10043-35-3 | 233-139-2 | PT08 | 31 January 2027 | 31 July 2031 |
| Brodifacoum | 56073-10-0 | 259-980-5 | PT14 | 31 January 2027 | 31 July 2031 |
| Bromadiolone | 28772-56-7 | 249-205-9 | PT14 | 31 January 2027 | 31 July 2031 |
| Cholecalciferol | 67-97-0 | 200-673-2 | PT14 | 31 January 2027 | 31 July 2031 |
| Copper (II) hydroxide | 20427-59-2 | 243-815-9 | PT08 | 31 January 2027 | 31 July 2031 |
| Copper (II) oxide | 1317-38-0 | 215-269-1 | PT08 | 31 January 2027 | 31 July 2031 |
| Copper pyrithione | 14915-37-8 | 238-984-0 | PT21 | 31 January 2027 | 31 July 2031 |
| Copper sulphate pentahydrate | 7758-99-8 | 231-847-6 | PT02 | 31 January 2027 | 31 July 2031 |
| Copper thiocyanate | 1111-67-7 | 214-183-1 | PT21 | 31 January 2027 | 31 July 2031 |
| Copper, granulated | 7440-50-8 | 231-159-6 | PT08 | 31 January 2027 | 31 July 2031 |
| Coumatetralyl | 5836-29-3 | 227-424-0 | PT14 | 31 January 2027 | 31 July 2031 |
| Cypermethrin | 52315-07-8 | 257-842-9 | PT08 | 31 January 2027 | 31 July 2031 |
| Dazomet | 533-74-4 | 208-576-7 | PT08 | 31 January 2027 | 31 July 2031 |
| DDAC | 7173-51-5 | 230-525-2 | PT08 | 31 January 2027 | 31 July 2031 |
| DDACarbonate | 894406-76-9 | 451-900-9 | PT08 | 31 January 2027 | 31 July 2031 |
| Decanoic acid | 334-48-5 | 206-376-4 | PT04 | 31 January 2027 | 31 July 2031 |
| DEET | 134-62-3 | 205-149-7 | PT19 | 31 January 2027 | 31 July 2031 |
| Deltamethrin | 52918-63-5 | 258-256-6 | PT18 | 31 January 2027 | 31 July 2031 |
| Dicopper oxide | 1317-39-1 | 215-270-7 | PT21 | 31 January 2027 | 31 July 2031 |
| Difenacoum | 56073-07-5 | 259-978-4 | PT14 | 31 January 2027 | 31 July 2031 |
| Difethialone | 104653-34-1 | 600-594-7 | PT14 | 31 January 2027 | 31 July 2031 |
| Dinotefuran | 165252-70-0 | 605-399-0 | PT18 | 31 January 2027 | 31 July 2031 |
| Ethyl butylacetylaminopropionate (IR3535) | 52304-36-6 | 257-835-0 | PT19 | 31 January 2027 | 31 July 2031 |
| Etofenprox | 80844-07-1 | 407-980-2 | PT18 | 31 January 2027 | 31 July 2031 |
| Flocoumafen | 90035-08-8 | 421-960-0 | PT14 | 31 January 2027 | 31 July 2031 |
| Folpet | 133-07-3 | 205-088-6 | PT09 | 31 January 2027 | 31 July 2031 |
| Formaldehyde | 50-00-0 | 200-001-8 | PT03 | 31 January 2027 | 31 July 2031 |
| Glutaraldehyde | 111-30-8 | 203-856-5 | PT02 | 31 January 2027 | 31 July 2031 |
| Glutaraldehyde | 111-30-8 | 203-856-5 | PT03 | 31 January 2027 | 31 July 2031 |
| Glutaraldehyde | 111-30-8 | 203-856-5 | PT04 | 31 January 2027 | 31 July 2031 |
| Glutaraldehyde | 111-30-8 | 203-856-5 | PT06 | 31 January 2027 | 31 July 2031 |
| Glutaraldehyde | 111-30-8 | 203-856-5 | PT11 | 31 January 2027 | 31 July 2031 |
| Glutaraldehyde | 111-30-8 | 203-856-5 | PT12 | 31 January 2027 | 31 July 2031 |
| Hydrochloric acid | 7647-01-0 | 231-595-7 | PT02 | 31 January 2027 | 31 July 2031 |
| Hydrogen cyanide | 74-90-8 | 200-821-6 | PT08 | 31 January 2027 | 31 July 2031 |
| Hydrogen cyanide | 74-90-8 | 200-821-6 | PT14 | 31 January 2027 | 31 July 2031 |
| Hydrogen cyanide | 74-90-8 | 200-821-6 | PT18 | 31 January 2027 | 31 July 2031 |
| Hydrogen peroxide | 7722-84-1 | 231-765-0 | PT01 | 31 January 2027 | 31 July 2031 |
| Hydrogen peroxide | 7722-84-1 | 231-765-0 | PT02 | 31 January 2027 | 31 July 2031 |
| Hydrogen peroxide | 7722-84-1 | 231-765-0 | PT03 | 31 January 2027 | 31 July 2031 |
| Hydrogen peroxide | 7722-84-1 | 231-765-0 | PT04 | 31 January 2027 | 31 July 2031 |
| Hydrogen peroxide | 7722-84-1 | 231-765-0 | PT05 | 31 January 2027 | 31 July 2031 |
| Imidacloprid | 138261-41-3 | 428-040-8 | PT18 | 31 January 2027 | 31 July 2031 |
| Indoxacarb | 144171-61-9 | 604-398-2 | PT18 | 31 January 2027 | 31 July 2031 |
| Iodine | 7553-56-2 | 231-442-4 | PT03 | 31 January 2027 | 31 July 2031 |
| IPBC | 55406-53-6 | 259-627-5 | PT08 | 31 January 2027 | 31 July 2031 |
| IPBC | 55406-53-6 | 259-627-5 | PT06 | 31 January 2027 | 31 July 2031 |
| IPBC | 55406-53-6 | 259-627-5 | PT13 | 31 January 2027 | 31 July 2031 |
| Lambda-cyhalothrin | 91465-08-6 | 415-130-7 | PT18 | 31 January 2027 | 31 July 2031 |
| Magnesium phosphide | 12057-74-8 | 235-023-7 | PT18 | 31 January 2027 | 31 July 2031 |
| Medetomidine | 86347-14-0 | 811-718-6 | PT21 | 31 January 2027 | 31 July 2031 |
| Metofluthrin | 240494-71-7 | N/A | PT18 | 31 January 2027 | 31 July 2031 |
| MIT (2-methylisothiazol-3(2H)-one) | 2682-20-4 | 220-239-6 | PT13 | 31 January 2027 | 31 July 2031 |
| Nonanoic acid (pelargonic acid) | 112-05-0 | 203-931-2 | PT02 | 31 January 2027 | 31 July 2031 |
| Octanoic acid | 124-07-2 | 204-677-5 | PT04 | 31 January 2027 | 31 July 2031 |
| Permethrin | 52645-53-1 | 258-067-9 | PT08 | 31 January 2027 | 31 July 2031 |
| Permethrin | 52645-53-1 | 258-067-9 | PT18 | 31 January 2027 | 31 July 2031 |
| PHMB (1415;4.7) | 1802181-67-4 | N/A | PT02 | 31 January 2027 | 31 July 2031 |
| Propan-2-ol | 67-63-0 | 200-661-7 | PT01 | 31 January 2027 | 31 July 2031 |
| Propan-2-ol | 67-63-0 | 200-661-7 | PT02 | 31 January 2027 | 31 July 2031 |
| Propan-2-ol | 67-63-0 | 200-661-7 | PT04 | 31 January 2027 | 31 July 2031 |
| Propiconazole | 60207-90-1 | 262-104-4 | PT08 | 31 January 2027 | 31 July 2031 |
| PVP-iodine | 25655-41-8 | 607-771-8 | PT03 | 31 January 2027 | 31 July 2031 |
| Pyriproxyfen | 95737-68-1 | 429-800-1 | PT18 | 31 January 2027 | 31 July 2031 |
| Pythium oligandrum, Chromista - Stramenopila | N/A | N/A | PT10 | 31 January 2027 | 31 July 2031 |
| S-methoprene | 65733-16-6 | 613-834-0 | PT18 | 31 January 2027 | 31 July 2031 |
| Spinosad | 168316-95-8 | 434-300-1 | PT18 | 31 January 2027 | 31 July 2031 |
| Sulfuryl fluoride | 2699-79-8 | 220-281-5 | PT08 | 31 January 2027 | 31 July 2031 |
| Sulfuryl fluoride | 2699-79-8 | 220-281-5 | PT18 | 31 January 2027 | 31 July 2031 |
| Tebuconazole | 107534-96-3 | 403-640-2 | PT08 | 31 January 2027 | 31 July 2031 |
| Tralopyril | 122454-29-9 | 602-784-5 | PT21 | 31 January 2027 | 31 July 2031 |
| Transfluthrin | 118712-89-3 | 405-060-5 | PT18 | 31 January 2027 | 31 July 2031 |
| Zineb | 12122-67-7 | 235-180-1 | PT21 | 31 January 2027 | 31 July 2031 |
| Biphenyl-2-ol | 90-43-7 | 201-993-5 | PT01 | 31 January 2027 | 31 July 2031 |
| Biphenyl-2-ol | 90-43-7 | 201-993-5 | PT02 | 31 January 2027 | 31 July 2031 |
| Biphenyl-2-ol | 90-43-7 | 201-993-5 | PT04 | 31 January 2027 | 31 July 2031 |
| Biphenyl-2-ol | 90-43-7 | 201-993-5 | PT06 | 31 January 2027 | 31 July 2031 |
| Biphenyl-2-ol | 90-43-7 | 201-993-5 | PT13 | 31 January 2027 | 31 July 2031 |
| Mixture of CMIT/MIT | 55965-84-9 | 611-341-5 | PT02 | 31 January 2027 | 31 July 2031 |
| Mixture of CMIT/MIT | 55965-84-9 | 611-341-5 | PT04 | 31 January 2027 | 31 July 2031 |
| Mixture of CMIT/MIT | 55965-84-9 | 611-341-5 | PT06 | 31 January 2027 | 31 July 2031 |
| Mixture of CMIT/MIT | 55965-84-9 | 611-341-5 | PT11 | 31 January 2027 | 31 July 2031 |
| Mixture of CMIT/MIT | 55965-84-9 | 611-341-5 | PT12 | 31 January 2027 | 31 July 2031 |
| Mixture of CMIT/MIT | 55965-84-9 | 611-341-5 | PT13 | 31 January 2027 | 31 July 2031 |
| Peracetic acid | 79-21-0 | 201-186-8 | PT02 | 31 January 2027 | 31 July 2031 |
| Peracetic acid | 79-21-0 | 201-186-8 | PT03 | 31 January 2027 | 31 July 2031 |
| Peracetic acid | 79-21-0 | 201-186-8 | PT04 | 31 January 2027 | 31 July 2031 |
| Peracetic acid | 79-21-0 | 201-186-8 | PT05 | 31 January 2027 | 31 July 2031 |
| Biphenyl-2-ol | 90-43-7 | 201-993-5 | PT03 | 31 January 2027 | 31 July 2031 |
| Peracetic acid | 79-21-0 | 201-186-8 | PT11 | 31 January 2027 | 31 July 2031 |
| Peracetic acid | 79-21-0 | 201-186-8 | PT12 | 31 January 2027 | 31 July 2031 |
| Active substance name | CAS number | EC number | Product type | Previous expiry date | New expiry date |
|---|---|---|---|---|---|
| Copper (II) hydroxide | 20427-59-2 | 243-815-9 | PT08 | 31 January 2024 | 31 January 2027 |
| Copper (II) oxide | 1317-38-0 | 215-269-1 | PT08 | 31 January 2024 | 31 January 2027 |
| Basic Copper carbonate | 12069-69-1 | 235-113-6 | PT08 | 31 January 2024 | 31 January 2027 |
| Hydrochloric acid | 7647-01-0 | 231-595-7 | PT02 | 30 April 2024 | 31 January 2027 |
| Cholecalciferol | 67-97-0 | 200-673-2 | PT14 | 30 June 2024 | 31 January 2027 |
| Difenacoum | 56073-07-5 | 259-978-4 | PT14 | 30 June 2024 | 31 January 2027 |
| Bromadiolone | 28772-56-7 | 249-205-9 | PT14 | 30 June 2024 | 31 January 2027 |
| Difethialone | 104653-34-1 | 600-594-7 | PT14 | 30 June 2024 | 31 January 2027 |
| Brodifacoum | 56073-10-0 | 259-980-5 | PT14 | 30 June 2024 | 31 January 2027 |
| Flocoumafen | 90035-08-8 | 421-960-0 | PT14 | 30 June 2024 | 31 January 2027 |
| Coumatetralyl | 5836-29-3 | 227-424-0 | PT14 | 30 June 2024 | 31 January 2027 |
| Hydrogen cyanide | 74-90-8 | 200-821-6 | PT08 | 30 September 2024 | 31 January 2027 |
| Hydrogen cyanide | 74-90-8 | 200-821-6 | PT14 | 30 September 2024 | 31 January 2027 |
| Hydrogen cyanide | 74-90-8 | 200-821-6 | PT18 | 30 September 2024 | 31 January 2027 |
| Pyriproxyfen | 95737-68-1 | 429-800-1 | PT18 | 31 January 2025 | 31 January 2027 |
| ADBAC/BKC (C12-16) | 68424-85-1 | 270-325-2 | PT08 | 31 January 2025 | 31 January 2027 |
| DDAC | 7173-51-5 | 230-525-2 | PT08 | 31 January 2025 | 31 January 2027 |
| Formaldehyde | 50-00-0 | 200-001-8 | PT03 | 31 January 2025 | 31 January 2027 |
| Magnesium phosphide releasing phosphine (Trimagnesium diphosphide) | 12057-74-8 | 235-023-7 | PT18 | 31 January 2025 | 31 January 2027 |
| Tralopyril | 122454-29-9 | 602-784-5 | PT21 | 31 March 2025 | 31 January 2027 |
| Cypermethrin | 52315-07-8 | 257-842-9 | PT08 | 31 May 2025 | 31 January 2027 |
| Dinotefuran | 165252-70-0 | 605-399-0 | PT18 | 31 May 2025 | 31 January 2027 |
| IPBC | 55406-53-6 | 259-627-5 | PT06 | 30 June 2025 | 31 January 2027 |
| Etofenprox | 80844-07-1 | 407-980-2 | PT18 | 30 June 2025 | 31 January 2027 |
| Aluminium phosphide releasing phosphine | 20859-73-8 | 244-088-0 | PT20 | 30 June 2025 | 31 January 2027 |
| Copper sulphate pentahydrate | 7758-99-8 | 231-847-6 | PT02 | 30 June 2025 | 31 January 2027 |
| Indoxacarb | 144171-61-9 | 604-398-2 | PT18 | 30 June 2025 | 31 January 2027 |
| N,N-diethyl-meta-toluamide (DEET) | 134-62-3 | 205-149-7 | PT19 | 31 July 2025 | 31 January 2027 |
| Dazomet | 533-74-4 | 208-576-7 | PT08 | 31 July 2025 | 31 January 2027 |
| Tebuconazole | 107534-96-3 | 403-640-2 | PT08 | 30 September 2025 | 31 January 2027 |
| Spinosad | 168316-95-8 | 434-300-1 | PT18 | 31 October 2025 | 31 January 2027 |
| IPBC | 55406-53-6 | 259-627-5 | PT08 | 31 December 2025 | 31 January 2027 |
| Medetomidine | 86347-14-0 | 811-718-6 | PT21 | 31 December 2025 | 31 January 2027 |
| DDACarbonate | 894406-76-9 | 451-900-9 | PT08 | 31 January 2026 | 31 January 2027 |
| Imidacloprid | 138261-41-3 | 428-040-8 | PT18 | 30 June 2026 | 31 January 2027 |
| DCOIT | 64359-81-5 | 264-843-8 | PT08 | 30 June 2026 | 31 January 2027 |
| Alphachloralose | 15879-93-3 | 240-016-7 | PT14 | 24 July 2026 | 31 January 2027 |
| Propiconazole | 60207-90-1 | 262-104-4 | PT08 | 24 July 2026 | 31 January 2027 |
| Metofluthrin | 240494-71-7 | n/a | PT18 | 24 July 2026 | 31 January 2027 |
| Aluminium phosphide releasing phosphine | 20859-73-8 | 244-088-0 | PT14 | 24 July 2026 | 31 January 2027 |
| Boric acid | 10043-35-3 | 233-139-2 | PT08 | 24 July 2026 | 31 January 2027 |
| Sulphuryl difluoride (sulfuryl fluoride) | 2699-79-8 | 220-281-5 | PT08 | 24 July 2026 | 31 January 2027 |
| Sulphuryl difluoride (sulfuryl fluoride) | 2699-79-8 | 220-281-5 | PT18 | 24 July 2026 | 31 January 2027 |
| Deltamethrin | 52918-63-5 | 258-256-6 | PT18 | 30 September 2026 | 31 January 2027 |
| Bacillus thuringiensis subsp. israelensis Serotype H14, Strain AM65-52 | n/a | n/a | PT18 | 30 September 2026 | 31 January 2027 |
| Lambda-cyhalothrin | 91465-08-6 | 415-130-7 | PT18 | 30 September 2026 | 31 January 2027 |