EPA moves to ban chlorpyrifos for food applications
In a final rule released in August, EPA announced that it is revoking all tolerances (i.e., the maximum allowed residues in food) for the pesticide chlorpyrifos. Widely used on crops and produce ranging from corn to soybeans to strawberries, chlorpyrifos is an organophosphate insecticide that has been applied by numerous agricultural producers since 1965. The pesticide has since been linked to potential neurological effects in children as well as other adverse health effects on farmworkers and their families.
In addition to the final rule, which will take effect six months from the announcement, EPA will issue a Notice of Intent to Cancel under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) to cancel all registered food uses of chlorpyrifos that are associated with the revoked tolerances. The actions will be incorporated into ongoing registration reviews for chlorpyrifos, the use of which will still be permitted for various nonfood applications.
The journey resulting in the final rule banning chlorpyrifos was somewhat unusual. Rather than being promulgated under a typical rulemaking process that includes a draft rule and public comment, the new final rule is being issued in response to a court order from the Ninth Circuit Court of Appeals. The order gave EPA a deadline of August 20 to either prove the safety of chlorpyrifos (noting that evidence to the contrary is decades old) or issue a rule stopping agricultural use of the chemical.
While EPA under the Obama administration began the process of revoking all uses of chlorpyrifos in 2015, EPA under the Trump administration decided in 2020 to leave the chemical on the market. This decision led to a series of legal challenges, ultimately resulting in the Ninth Circuit Court’s order in April 2021.
Some estimates predict the new action will lead to the elimination of 90 percent of chlorpyrifos use in the United States. Several states, including California, New York, Maryland, and Hawaii, have already banned or otherwise restricted the use of chlorpyrifos, and the use of the pesticide has been in decline in recent years.
Key to remember: Chlorpyrifos will be banned from all food applications six months from the EPA’s announcement of the final rule in August 2021.