Revocation of Chlorpyrifos Tolerances
2024 Update
On February 5, 2024, the U.S. Environmental Protection Agency issued a Federal Register Notice to amend the Code of Federal Regulations to reflect the November 2, 2023 Eighth Circuit Court of Appeals' ruling. The Eighth Circuit Court officially issued its mandate for this decision on December 28, 2023, which immediately reinstated the chlorpyrifos tolerances.
EPA is also engaged in discussions with the registrants to further reduce exposures in specific geographic locations and at specific application rates associated with these 11 uses of chlorpyrifos to address safety of the tolerances.
At this time, final cancellation orders, including their terms for existing stocks of products subject to those cancellation orders and related return programs for chlorpyrifos products, remain in place unless and until amended by EPA.