Pittsburgh, PA and Washington, DC
Environmental Alert
(By Joseph Schaeffer and Sloane Wildman)
On March 21, 2024, the U.S. Court of Appeals for the Fifth Circuit issued an opinion in Inhance Technologies, L.L.C. v. U.S. Environmental Protection Agency, No. 23-60620 (5th Cir. Mar. 21, 2024) that confirmed the obvious: a company that has a 40-year history of using perfluoroalkyl substances (PFAS) in its fluorination manufacturing process is not engaged in a “significant new use” under the Toxic Substances Control Act (TSCA), 15 U.S.C. §§ 2601-2697. While not preventing the U.S. Environmental Protection Agency (EPA) from regulating existing uses of PFAS under other TSCA provisions, this common-sense conclusion provides industry with much-needed clarity and predictability.
TSCA Background
TSCA was enacted in 1976 to regulate chemicals that “present an unreasonable risk of injury to health or the environment.” 15 U.S.C. § 2601. EPA may do so in one of two ways. Under TSCA § 5, EPA may regulate the use of “new chemical substance[s]” and any “significant new use” of chemical substances. 15 U.S.C. § 2604. To determine whether use of a chemical substance is a significant new use, EPA considers four factors:
(1) the projected volume of manufacturing and processing of a chemical substance; (2) the extent to which a use changes the type or form of exposure of human beings or the environment to a chemical substance; (3) the extent to which a use increases the magnitude and duration of exposure of human beings or the environment to a chemical substance; and (4) the reasonably anticipated manner and methods of manufacturing, processing, distribution in commerce, and disposal of a chemical substance.
15 U.S.C. § 2604(a)(2). …