Monsanto v. Durnell · ¶46

In sum, federal law requires Monsanto to sell Roundup with the label that EPA approved at the initial registration and that EPA has subsequently re-approved on multiple occasions—that is, the label without a cancer warning. Durnell’s state tort claim, by contrast, would require Monsanto to add a cancer warning to its labels. That Missouri-law requirement is “in addition to” and “different from” Monsanto’s federal-law labeling obligations.

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