Implied preemption

Definition

Preemption that is inferred from federal law even when not explicitly stated, typically when state law conflicts with federal law's objectives or purposes, or when federal law is so comprehensive that Congress intended to occupy the entire regulatory field and preclude state law from operating in that area.

Examples

• •Monsanto argues that FIFRA impliedly preempts state warning claims because EPA labeling approval reflects federal determination of adequacy

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