- within Litigation, Mediation & Arbitration and Technology topic(s)
On August 20, 2026, the U.S. Environmental Protection Agency (EPA) announced notice of receipt of applications to register new active ingredients (AI) not included in any currently registered pesticide product. 91 Fed. Reg. 53858. EPA is providing the public with an opportunity to comment on these applications.
EPA Action
Notice of receipt of the applications does not imply a decision by EPA. The applications identified in the announcement were received since the last notice was issued by EPA and are currently being evaluated in accordance with the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). The applications for new AIs include:
- Docket ID number: EPA-HQ-OPP-2026-1784
Applicant: Nissan Chemical Corporation
Product names: Iptriazopyrid Technical; Iptriazopyrid 100 g/L SC
AI: Herbicide – Iptriazopyrid at 98.5 percent; 9.1 percent
Proposed use: Rice
- Docket ID number: EPA-HQ-OPP-2026-5413
Applicant: Bedoukian Research, Inc.
Product name: Bedoukiab z- 9-Hexadecenal Technical Pheromone
AI: SCLP pheromone – z-9-Hexadecenal at 90 percent
Proposed use: Mating Disruptor (used as an attractant for incorporation into end-use products, intended to control lepidopteran species) - Docket ID number: EPA-HQ-OPP-2026-4786
Applicant: ReliOx Corporation
Product name: Whiff!
AI: Styrene, divinylbenzene and ethyl styrene copolymer, chloromethyl trimethylamine (26.148 percent) as an activator for sodium chlorite to generate chlorine dioxide
Product type: Antimicrobial Pesticide
Proposed uses:Non-food use, indoor disinfectant deodorizer, bactericide and virucide for residential and commercial use
EPA is opening a 30-day comment period. Comments must be received on or before September 21, 2026, and can be submitted to the dockets listed above at www.regulations.gov. There will be an additional opportunity for public comment on the proposed decisions. EPA’s public participation website provides additional information on this process.
Commentary
The proposed registration of the new antimicrobial pesticide AI, styrene, divinylbenzene and ethyl styrene copolymer, chloromethyl trimethylamine as an activator for sodium chlorite to generate chlorine dioxide, is a rare event since new antimicrobial pesticide chemistries are uncommon. The majority of EPA antimicrobial actions involve adding new target pathogens, expanding application surfaces, new products, or label changes for long-established antimicrobial chemistries that are currently used in registered products. For comparison, EPA averages about ten new AIs for conventional pesticides per fiscal year, while several years can go by with zero new antimicrobial AI registrations.
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