(U.S., filed May 9, 2025): Arguing that the Missouri Court of Appeals and other appellate courts have gutted FIFRA’s express preemption provision, allowing liability under a patchwork of state labeling requirements that differ from federal law. The lower court’s ruling disregards this Court’s precedent and the EPA-approved labels manufacturers are compelled by law to follow. The Missouri Court of Appeals and other courts have flouted this Court’s precedent holding that a state-law claim is impliedly preempted if the regulated party cannot simultaneously comply with both federal and state law. Allowing the lower-court split on preemption to persist will undermine uniformity under several important federal statutes, impede nationwide marketing, and open the floodgates to crushing liability against businesses that comply with federal law.
