Center for Food Safety Opposes Monsanto–Bayer Legal Efforts to Preempt State Pesticide Warnings

Why It Matters

Preserving state‑level warnings could force more transparent labeling and increase corporate accountability for pesticide‑related health risks, influencing the broader food safety landscape.

Key Takeaways

• Amicus brief opposes preempting state pesticide warnings
• Glyphosate used 280 million pounds annually in U.S.
• EPA labels cancer warnings on only 1‑2 percent of pesticides
• Court vacated EPA glyphosate risk assessment in 2022
• Decision could reshape liability and labeling across food supply

Pulse Analysis

The Supreme Court’s upcoming decision in Monsanto v. Durnell sits at the intersection of federal preemption doctrine and state‑level public health safeguards. By filing an amicus brief, the Center for Food Safety and its partners argue that state‑mandated pesticide warnings are essential to fill gaps left by the EPA’s risk communication framework. The case tests whether a multinational corporation can override decades‑old state authority that has traditionally protected consumers and farmworkers from chemical hazards.

Glyphosate’s ubiquity amplifies the stakes. Roughly 280 million pounds of the herbicide are applied each year across U.S. farms, with residues surfacing in food, water, and human biomonitoring studies. The World Health Organization’s International Agency for Research on Cancer labeled glyphosate “probably carcinogenic” in 2015, and juries have repeatedly held Monsanto liable for failing to warn about non‑Hodgkin lymphoma risks. Yet EPA labeling practices remain sparse—cancer warnings appear on just about one percent of pesticide products, exposing a systemic communication shortfall that the brief seeks to remedy.

For food producers, retailers, and agricultural workers, the outcome could trigger a cascade of regulatory and commercial adjustments. A ruling that upholds state warning powers would likely compel manufacturers to adopt more explicit labeling, potentially increasing compliance costs but also reducing litigation exposure. Conversely, a decision favoring preemption could consolidate risk communication under federal oversight, limiting state innovation but possibly leaving consumers with less granular information. Stakeholders are watching closely, as the verdict will shape liability frameworks, supply‑chain transparency, and the broader discourse on chemical safety in the modern food system.