---
kind: "unit"
title: "50"
title_heading: "War and National Defense"
key: "ch40"
level: "chapter"
label: "Chapter 40"
heading: "Defense Against Weapons of Mass Destruction"
release: "119-102"
url: "https://uscodex.org/usc/50/ch40"
sections_count: 41
---

# Chapter 40 — Defense Against Weapons of Mass Destruction

Title 50 — War and National Defense

## Sections

- [§2301. Findings](/usc/50/2301.md)
- [§2302. Definitions](/usc/50/2302.md)

## Contents

- [Subchapter I — Domestic Preparedness](/usc/50/ch40-schI.md)
- [Subchapter II — Interdiction of Weapons of Mass Destruction and Related Materials](/usc/50/ch40-schII.md)
- [Subchapter III — Control and Disposition of Weapons of Mass Destruction and Related Materials Threatening the United States](/usc/50/ch40-schIII.md)
- [Subchapter IV — Coordination of Policy and Countermeasures Against Proliferation of Weapons of Mass Destruction](/usc/50/ch40-schIV.md)
- [Subchapter IV–A — Nonproliferation Assistance Coordination](/usc/50/ch40-schIV-A.md)
- [Subchapter V — Miscellaneous](/usc/50/ch40-schV.md)