Oklahoma v. EPA
| Oklahoma v. Environmental Protection Agency | |
|---|---|
| Decided June 18, 2025 | |
| Full case name | Oklahoma v. EPA |
| Docket no. | 23-1067 |
| Citations | 605 U.S. 609 (more) 145 S.Ct. 1720 |
| Holding | |
| EPA disapprovals of state implementation plans under the Clean Air Act are locally or regionally applicable actions, not national ones, so challenges to them should be heard in regional circuits. | |
| Court membership | |
| |
| Case opinions | |
| Majority | Thomas, joined by Sotomayor, Kagan, Kavanaugh, Barrett and Jackson |
| Concurrence | Gorsuch (in judgment), joined by Roberts |
| Alito took no part in the consideration or decision of the case. | |
| Laws applied | |
| Clean Air Act | |
Oklahoma v. Environmental Protection Agency, 605 U.S. 609 (2025), was a case before the Supreme Court of the United States that addressed where lawsuits challenging certain EPA actions must be filed. The Court held that when the EPA disapproves a state implementation plan (SIP) under the Clean Air Act, that decision is a local or regional action, not a national one. As a result, challenges must be brought in the appropriate regional federal appeals courts, rather than exclusively in the D.C. Circuit.