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Monsanto Company v. Durnell

No. 24-1068 SCOTUS · Decided SCOTUS
Cert Granted: Jan 16, 2026 Argued: Apr 27, 2026 Decided: Jun 25, 2026
📄 Read the Opinion

Decision

7-2
Opinion Kavanaugh, J.
Concurrence Thomas, J.
Dissent Jackson, J., joined by Gorsuch, J.

The Law · How the Case Works

Opinion of the Court

Kavanaugh, J.

Overview

Overview

A case in which the Court will decide whether the Federal Insecticide, Fungicide, and Rodenticide Act preempts a label-based failure-to-warn claim where EPA has not required the warning.

The Facts

Facts

John Durnell alleges that regular use of Monsanto's Roundup herbicide (glyphosate-based) caused him to develop non-Hodgkin's lymphoma, and he brought a state-law failure-to-warn claim. Monsanto argues that because the EPA approved the product's label and found glyphosate is not likely carcinogenic, FIFRA preempts any state-law claim requiring a different or additional cancer warning. Multiple circuits have split on whether FIFRA preempts such claims.

The Issue

Issue

Whether the Federal Insecticide, Fungicide, and Rodenticide Act expressly preempts state failure-to-warn tort claims when the EPA has approved a pesticide's label and concluded the product is not likely carcinogenic to humans.

The Rules

Rule

FIFRA's express preemption provision (7 U.S.C. § 136v(b)) bars states from imposing labeling requirements 'in addition to or different from' federal requirements. Under Bates v. Dow Agrosciences LLC, 544 U.S. 431 (2005), FIFRA does not preempt state tort claims that are fully consistent with and parallel to FIFRA's labeling mandates. Courts have split on whether a state duty to warn that the EPA has specifically rejected constitutes a 'different' requirement preempted by federal law.

The Application

Analysis

Monsanto argues FIFRA § 136v(b) expressly preempts state-law failure-to-warn claims when the EPA has reviewed and approved a pesticide's labeling. Requiring different or additional warnings under state law creates conflicting obligations Congress intended to prevent. The EPA's determination that glyphosate is 'not likely to be carcinogenic' should control.

The Conclusion

Conclusion

[Awaiting opinion]

The Record · 1 original document
Court -
FiledDec 19, 2024
CL Statusterminated
View on CourtListener →

No circuit court data for this case.

Cert GrantedJan 16, 2026
Statusterminated
Filed (CL)Dec 19, 2024
View on CourtListener →

Decision

7-2
Opinion Kavanaugh, J.
Concurrence Thomas, J.
Dissent Jackson, J., joined by Gorsuch, J.
SCOTUS TMR-ee734137 Jul 28, 2026
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