​US EPA extends comment period on proposed rule to revoke chlorpyrifos tolerances

To give commenters more time to provide input, the U.S. Environmental Protection Agency (EPA) is reopening the public comment period on a proposed rule to revoke certain tolerances for chlorpyrifos. Tolerances establish the maximum amount of a pesticide that is allowed on food.

EPA released the proposed tolerance rule in December 2024 with a comment period that closes today, Feb. 10, 2025. The agency will soon publish a Federal Register notice reopening the public comment period for 30 days. Upon publication of the Federal Register notice reopening the comment period, comments can be submitted to docket EPA-HQ-OPP-2024-0431 on www.regulations.gov for an additional 30 days.

EPA will continue to keep the public updated as it evaluates and takes any actions related to chlorpyrifos pesticide use. The registration review process for chlorpyrifos is ongoing. EPA plans to issue an amended Proposed Interim Decision for chlorpyrifos for public comment followed by an Interim Decision in 2026.

Read the proposed tolerance rule.