Title 15 — Commerce and TradeRelease 119-73

§8931 Definitions

Title 15 › Chapter CHAPTER 115— - PERFLUOROALKYL AND POLYFLUOROALKYL SUBSTANCES AND EMERGING CONTAMINANTS › Subchapter SUBCHAPTER III— - USGS PERFORMANCE STANDARD › § 8931

Last updated Apr 6, 2026|Official source

Summary

Defines important words used here. "Director" means the head of the U.S. Geological Survey. "Highly fluorinated compound" means a perfluoroalkyl or polyfluoroalkyl chemical that has at least one carbon atom with all its hydrogen atoms replaced by fluorine. A "fully fluorinated carbon atom" is a carbon with no hydrogens because they are all replaced by fluorine. A "perfluoroalkyl substance" has every carbon like that. A "polyfluoroalkyl substance" has at least one such carbon and at least one carbon that is not.

Full Legal Text

Title 15, §8931

Commerce and Trade — Source: USLM XML via OLRC

In this subchapter:

(1)The term “Director” means the Director of the United States Geological Survey.

(2)(A)The term “highly fluorinated compound” means a perfluoroalkyl substance or a polyfluoroalkyl substance with at least one fully fluorinated carbon atom.

(B)In this paragraph:

(i)The term “fully fluorinated carbon atom” means a carbon atom on which all the hydrogen substituents have been replaced by fluorine.

(ii)The term “perfluoroalkyl substance” means a chemical of which all of the carbon atoms are fully fluorinated carbon atoms.

(iii)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.

Reference

Citations & Metadata

Citation

15 U.S.C. § 8931

Title 15 — Commerce and Trade

Last Updated

Apr 6, 2026

Release point: 119-73