On June 28, 2024, in Loper Bright Enterprises v. Raimondo, 144 S.Ct. 2244 (2024), the Supreme Court overruled its 1984 Chevron U.S.A., Inc. v. NRDC, Inc., 467 U.S. 837 (1984), decision and the legal doctrine of Chevron deference with it. In doing away with Chevron deference, the Court has broken from the accepted regulatory landscape of the last 40 years, which will have dramatic effects on environmental law for decades to come. Environmental attorney Jennifer Cave and summer associate Noah S. Dunaway take a look the Court’s decision and its impacts on regulated entities, beginning with an analysis of what Chevron deference was in this Stites & Harbison Client Alert.