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June 2, 2026

AAPCO FIFRA 25(b) Workgroup Releases Update to Efficacy Data Guidance

The Association of American Pesticide Control Officials (AAPCO) FIFRA 25(b) Workgroup has released updated guidance intended to aid registrants in developing product efficacy data to support claims on products that qualify for the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) Section 25(b) minimum risk exemption when seeking state registration. Under FIFRA Section 25(b), as detailed in Title 40 of the Code of Federal Regulations (40 C.F.R. Section 152.25(f)), the U.S. Environmental...