As previously reported, the Environmental Protection Agency (EPA) published a final rule on August 30, 2021 that revoked all tolerances for the pesticide chemical chlorpyrifos on raw agricultural commodities; the rulemaking was driven by toxicity concerns, primarily concerning exposure in children. The tolerances are set to expire on February 28, 2022, effectively banning the use of chlorpyrifos on food crops. In light of the expiration, FDA published a guidance document to assist food producers and processors that handle foods which may contain chlorpyrifos restudies.

In October of 2021, agriculture stakeholders submitted formal written objections and a request to stay the tolerance revocations to EPA. More than 80 stakeholders signed the document, arguing that significant harms would result from banning chlorpyrifos and urging the agency to stay implementation of the rule until objections were formally addressed by EPA.

Agriculture stakeholder groups are now seeking a court injunction against EPA’s ban on chlorpyrifos. On February 10, 2022, agricultural trade groups representing thousands of members filed a lawsuit against EPA before the Eight Circuit Court of Appeals, alleging that the agency ignored its own scientific findings regarding 11 high-benefit and low-risk crop uses for chlorpyrifos and that the revocation will cause irreparable damage. It remains to be seen how EPA will respond to the lawsuit.