Chevron USA Inc. v. Plaquemines Parish · ¶65

In responding to this inquiry, the majority considers in isolation the “ordinary meaning” of the phrase “relating to.” Ante, at 11 (internal quotation marks omitted). Based on our case law interpreting that phrase in other contexts, the majority concludes that this language requires only an indirect relationship between the conduct alleged in the lawsuit and the asserted federal duties. Ante, at 10–12. Accordingly, in the majority's view, Congress's addition of “or relating to” jettisoned the causal-nexus test in favor of a looser standard. Ante, at 11, and n. 3.

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