; and (B) may bring an action in an appropriate district court of the United States for appropriate relief, including civil penalties under paragraph (1) or declaratory and injunctive relief. (e) Severability (1) In general If any provision of this section or the application of this section to any person or circumstance is held invalid, the invalidity shall not affect the other provisions or applications of this section that can be given effect without the invalid provision or application. (2) Subsequent determinations If the application of any provision of this section is held invalid with respect to a foreign adversary controlled application that satisfies the definition of such term pursuant to subsection (g)(3)(A), such invalidity shall not affect or preclude the application of the same provision of this section to such foreign adversary controlled application by means of a subsequent determination pursuant to subsection (g)(3)(B). (f) Rule of construction Nothing in this division may be construed— (1) to authorize the Attorney General to pursue enforcement, under this section, other than enforcement of subsection (a) or (b); (2) to authorize the Attorney General to pursue enforcement, under this section, against an individual user of a foreign adversary controlled application; or (3) except as expressly provided herein, to alter or affect any other authority provided by or established under another provision of Federal law. (g) Definitions In this section: (1) Controlled by a foreign adversary The term controlled by a foreign adversary means, with respect to a covered company or other entity, that such company or other entity is— (A) a foreign person that is domiciled in, is headquartered in, has its principal place of business in, or is organized under the laws of a foreign adversary country; (B) an entity with respect to which a foreign person or combination of foreign persons described in subparagraph (A) directly or indirectly own at least a 20 percent stake