FIFRA 25(b) Workgroup

Organ Mountains-Desert Peaks photograph by Lisa Phillips, BLM Las Cruces District 

AAPCO formed a FIFRA 25(b) workgroup in Spring 2017.

The workgroup’s mission is to facilitate the collaboration of states and industry in order to share information, provide guidance, foster label consistency, and reduce the duplication of efforts in the review and registration of Minimum Risk Pesticide products.

The workgroup is chaired by Sarah Caffery (OISC). If you are interested in becoming a workgroup member, please email her at scaffery@purdue.edu

Guidance Documents

Absence of Ingredient Claims – February 2022

25(b) Inert Ingredient Research Guidance – February 2020

2020 State 25(b) Requirements with contact info

Data Efficacy guidance for 25(b) – March 2019

Data Efficacy guidance: Q&A for 25(b) products – November 2021

Label guidance for 25(b) products – updated December 2021

25(b) Statement of Formula form:  Word version, which will download and is fillable or PDF’d form, which is easier to view

2021 25(b) Audit: Contact participating states (Indiana or Wisconsin) directly for details.


State Workgroup Members – updated February 2022 (excel will download to your computer)

Industry Workgroup Members – updated February 2022 (excel will download to your computer)


Learn more about 25(b): EPA’s Minimum Risk Pesticides webpage