On March 21, 2024, the U.S. Court of Appeals for the Fifth Circuit vacated the U.S. Environmental Protection Agency’s (EPA) December 2023 orders prohibiting Inhance Technologies, L.L.C. (Inhance) from manufacturing or processing per- and polyfluoroalkyl substances (PFAS) during its fluorination process. The court notes that in March 2022, EPA “charged for the first time” that Inhance’s fluorination process was subject to the significant new use rule (SNUR) regarding long-chain...