Loper Bright Enterprises v. Raimondo (2024)
The Supreme Court overruled Chevron v. Natural Resources Defense Council (1984), the judge-made doctrine requiring courts to defer to reasonable agency interpretations of ambiguous statutes. Chevron had governed federal regulatory law for four decades.
Federal agencies lost automatic deference in court over statutory interpretation.
Courts now interpret ambiguous statutes textually without deferring to agency legal views.
Like Mason, Chevron was a judicially created rule that endured for decades until courts concluded the statutory text did not support it. Both were overruled on textualist grounds.
