---
kind: "section"
citation: "50 U.S.C. § 3731"
title: "50"
title_heading: "War and National Defense"
number: "3731"
heading: "Prohibition on use of funds for specified purposes"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/50/3731"
units:
  - "Chapter 48 — Department of Defense Cooperative Threat Reduction"
  - "Subchapter II — Restrictions and Limitations"
---

# §3731. Prohibition on use of funds for specified purposes

- (a) **In general—** [Cooperative Threat Reduction funds](/usc/50/3701.md?p=2) may not be obligated or expended for any of the following purposes:
  - (1) Conducting any peacekeeping exercise or other peacekeeping-related activity.
  - (2) Provision of housing.
  - (3) Provision of assistance to promote environmental restoration.
  - (4) Provision of assistance to promote job retraining.
  - (5) Provision of assistance to promote defense conversion.
- (b) **Limitation with respect to conventional weapons—** [Cooperative Threat Reduction funds](/usc/50/3701.md?p=2) may not be obligated or expended for the elimination of—
  - (1) conventional weapons; or
  - (2) delivery vehicles of conventional weapons, unless such delivery vehicles could reasonably be used or adapted to be used for the delivery of chemical, nuclear, or biological weapons.

## Source credit

(Pub. L. 113–291, div. A, title XIII, § 1331, Dec. 19, 2014, 128 Stat. 3601.)