U.S.C. Title 15 - COMMERCE AND TRADE 15 U.S.C. United States Code, 2023 Edition Title 15 - COMMERCE AND TRADE CHAPTER 115 - PERFLUOROALKYL AND POLYFLUOROALKYL SUBSTANCES AND EMERGING CONTAMINANTS SUBCHAPTER III - USGS PERFORMANCE STANDARD Sec. 8931 - Definitions From the U.S. Government Publishing Office, www.gpo.gov
§8931. Definitions
In this subchapter: (1) Director The term "Director" means the Director of the United States Geological Survey. (2) Highly fluorinated compound (A) In general The term "highly fluorinated compound" means a perfluoroalkyl substance or a polyfluoroalkyl substance with at least one fully fluorinated carbon atom. (B) Definitions In this paragraph: (i) Fully fluorinated carbon atom The term "fully fluorinated carbon atom" means a carbon atom on which all the hydrogen substituents have been replaced by fluorine. (ii) Perfluoroalkyl substance The term "perfluoroalkyl substance" means a chemical of which all of the carbon atoms are fully fluorinated carbon atoms. (iii) Polyfluoroalkyl substance The term "polyfluoroalkyl substance" means a chemical containing at least one fully fluorinated carbon atom and at least one carbon atom that is not a fully fluorinated carbon atom.
(Pub. L. 116–92, div. F, title LXXIII, §7331, Dec. 20, 2019, 133 Stat. 2281.)