October 8, 2026
EPA Announces the Availability of the Final 4-CPA Registration Review Decision before the Registration Review Deadline
On September 28, 2026, the U.S. Environmental Protection Agency (EPA) released the Final Registration Review Decision for 4-chlorophenoxyacetic acid (4-CPA). 91 Fed. Reg. 61228. The Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) mandates a periodic review of existing pesticide registrations every 15 years, referred to as registration review. During registration review, EPA determines whether a currently registered pesticide continues to meet FIFRA’s registration standard. EPA...