21 USC § 391 - Separability clause

---
identifier: "/us/usc/t21/s391"
source: "usc"
legal_status: "official_prima_facie"
title: "21 USC § 391 - Separability clause"
title_number: 21
title_name: "FOOD AND DRUGS"
section_number: "391"
section_name: "Separability clause"
chapter_number: 9
chapter_name: "FEDERAL FOOD, DRUG, AND COSMETIC ACT"
subchapter_number: "X"
subchapter_name: "MISCELLANEOUS"
positive_law: false
currency: "119-84"
last_updated: "2026-04-17"
format_version: "1.1.0"
generator: "[email protected]"
source_credit: "(June 25, 1938, ch. 675, § 1001, formerly § 901, 52 Stat. 1059; renumbered § 1001, Pub. L. 111–31, div. A, title I, § 101(b)(2), June 22, 2009, 123 Stat. 1784.)"
---


# § 391. Separability clause

If any provision of this chapter is declared unconstitutional, or the applicability thereof to any person or circumstances is held invalid, the constitutionality of the remainder of the chapter and the applicability thereof to other persons and circumstances shall not be affected thereby.

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**Source Credit**: (June 25, 1938, ch. 675, § 1001, formerly § 901, 52 Stat. 1059; renumbered § 1001, Pub. L. 111–31, div. A, title I, § 101(b)(2), June 22, 2009, 123 Stat. 1784.)