United States Code

USC most recently checked for updates: Jun 09, 2025

§ 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The term “fully fluorinated carbon atom” means a carbon atom on which all the hydrogen substituents have been replaced by fluorine.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.)
cite as: 15 USC 8931