EPA recently issued an order denying a 2007 petition (the “Cancellation Petition”) by the Pesticide Action Network and the Natural Resources Defense Council that sought to revoke all tolerances under section 408(d) of the Federal Food, Drug, and Cosmetic Act (FFDCA) and to cancel all registrations under the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) for pesticide products containing the active ingredient chlorpyrifos. Chlorpyrifos is a broad-spectrum, chlorinated organophosphate insecticide that has been registered for use in the United States since 1965. By pounds of active ingredient, it is the most widely used conventional insecticide in the country.

According to the EPA, it ultimately premised its order on its conclusion that more time is needed to study the effects of chlorpyrifos. Because the EPA is not required by FIFRA to complete its registration review of chlorpyrifos products until Oct. 1, 2022 (despite the EPA’s prior policy decision to complete the registration review sooner), the EPA simply denied the Cancellation Petition and claimed it will reach a final decision on the safety of chlorpyrifos sometime before its Oct. 1, 2022, deadline under FIFRA.

Read more about the Cancellation Petition and the EPA order in an article I recently published here.