The decision emphasizes the importance of judicial deference to agencies on NEPA and narrows the scope of environmental analyses.

By Nikki Buffa, Devin M. O’Connor, Jennifer K. Roy, Janice M. Schneider, Reilly Nelson, and Samantha Yeager

On May 29, 2025, the US Supreme Court issued a decision (Decision) in Seven County Infrastructure Coalition v. Eagle County, Colorado, No. 23-975 (2025), significantly narrowing the scope of environmental reviews required under the National Environmental Policy Act…