Monsanto v. Durnell · ¶97

Importantly, however, there is not always a complete conflict between a federal statute and state law, even if they address the same subject matter. That is, federal law does not necessarily box out all state regulation on a particular issue. Congress can and does enact statutory provisions that specifically define the preemptive scope of the federal law. See, e.g., Montgomery v. Caribe Transport II, LLC, 608 U. S. ＿＿＿, ＿＿＿–＿＿＿ (2026) (slip op., at 2–3) (describing preemption provision that carves out state safety regulations); cf. Cipollone v. Liggett Group, Inc., 505 U. S. 504, 517 (1992) (“Congress’ enactment of a provision defining the pre-emptive reach of a statute implies that matters beyond that reach are not pre-empted”). And federal preemption provisions often permit parallel state laws—i.e., those that “merely duplicate federal requirements.” Bates v. Dow Agrosciences LLC, 544…

slip opinion
Source edition
Passage preview. Read in context for the complete text, notes and references.