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California Court Upholds Labor Code Listing Mechanism in Monsanto Glyphosate Case

  • California Court of Appeals has rejected various arguments made by Monsanto Company, challenging the listing of glyphosate based on the Proposition 65 Labor Code listing mechanism, where carcinogens listed by the International Agency for Research on Cancer are automatically listed under Proposition 65.

  • The court did not agree that the Labor Code listing of IARC carcinogens amounted to an unconstitutional delegation of “a quasi-legislative authority to an outside agency without providing for adequate standards or appropriate safeguards.”  The court noted that Californians voted to pass Proposition 65 in part because they felt that state agencies had failed to adequately protect individuals from chemical exposures and decided that—at a minimum—some substances would be listed based on the Labor Code listing mechanism as a matter of course.

  • This decision adds to the case law concerning glyphosate under Proposition 65.  It remains to be seen where the dust will settle with regard to Proposition 65 warnings for glyphosate, which is now the subject of a 1,100 microgram safe harbor level, given the outcome of a recent decision in which a California federal court agreed that such warnings would be misleading commercial speech under the First Amendment of the Constitution.

© 2020 Keller and Heckman LLPNational Law Review, Volume VIII, Number 116


About this Author

Keller and Heckman offers global food and drug services to its clients. Our comprehensive and extensive food and drug practice is one of the largest in the world. We promote, protect, and defend products made by the spectrum of industries regulated by the U.S. Food and Drug Administration (FDA), the European Commission and Member States authorities in the European Union (EU) and similar authorities throughout the world. The products we help get to market include foods, pharmaceuticals, medical devices, veterinary products, dietary supplements, and cosmetics. In addition...