# 119-s-3356: HALT Act of 2025

119-s-3356, HALT Act of 2025, is a 119th Congress bill sponsored by Sen. Markey, Edward J. [D-MA] (D-MA); status introduced (as of 2026-04-23).

- Canonical: https://policyrisk.com/legislation/119-s-3356
- As of: 2026-04-23
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: 119-s-3356
- Congress: 119
- Title: HALT Act of 2025
- Status: introduced
- Introduced: 2025-12-04
- Sponsor: Sen. Markey, Edward J. [D-MA] (D-MA)
- Cosponsors: 1
- Policy area: unknown
- Touches household money: no
- Last recorded action: 2026-04-23

## Summary

**This bill pushes U.S. policy toward verifiable multilateral arms‑control.** It also conditions any explosive nuclear-weapons test on a presidential report and a specific act of Congress so tests cannot proceed absent congressional approval. - U.S. diplomacy and verification: directs the United States to lead talks with all nuclear-armed states to cut and verify arsenals, resume on-site inspections under the New START framework, seek numerical ceilings on delivery systems and warheads for the P5 (aiming for 2019 levels), and press for no-first-use transparency. - Nuclear testing and congressional control: prohibits using funds for explosive nuclear tests unless the President submits an addendum to the annual stockpile report and Congress enacts a joint resolution. The restriction covers funds for fiscal year 2026 or later and earlier-year funds that remain available at enactment. - Treaty and technical limits: urges ratifying the Comprehensive Nuclear-Test-Ban Treaty, pushes for wider International Atomic Energy Agency access for NPT noncompliance, advances talks on a fissile-material treaty, calls limits on hypersonic delivery systems, and seeks to avoid new warhead designs that would drive renewed testing while preserving zero-yield stockpile stewardship.

## Cosponsors (1)

- Sen. Merkley, Jeff [D-OR] (D-OR), 2025-12-04T00:00:00.000Z

## Provisions PRIA read

- Ban federal funding for nuclear tests: benefit, high. This bill would prohibit using federal funds to conduct or prepare for any explosive nuclear weapons test that produces yield. The ban would cover funds authorized for fiscal year 2026 and later, and prior-year funds still available as of enactment. The ban would remain until the President submits…
- Push to ratify the nuclear test ban: benefit, medium. This bill would direct the President to seek Senate ratification of the Comprehensive Nuclear-Test-Ban Treaty. It would also urge Annex 2 countries to ratify the treaty to hasten its entry into force. If the treaty enters into force, onsite inspection powers would become available to investigate al…
- U.S. goals to reduce nuclear arms: benefit, medium. This bill would set U.S. goals to negotiate multilateral arms-control agreements with all nuclear-armed countries. It would push to resume on-site inspections under New START and seek a follow-on treaty that could lower central limits and cover new delivery systems. It would call for a verifiable f…

## Related bills

- 119-s-5071: Children's Safe Welcome Act of 2026
- 119-s-5022: Cannabis Administration and Opportunity Act
- 119-s-2838: Protecting Our Democracy Act
- 119-s-2819: Head Start for America's Children Act
- 119-s-5283: Momnibus Act
- 119-s-1507: Agriculture Resilience Act of 2025

## Sources
- [119-s-3356 on Congress.gov](https://www.congress.gov/bill/119th-congress/senate-bill/3356)

## Related
- [119-s-5071: Children's Safe Welcome Act of 2026](https://policyrisk.com/legislation/119-s-5071)
- [119-s-5022: Cannabis Administration and Opportunity Act](https://policyrisk.com/legislation/119-s-5022)
- [119-s-2838: Protecting Our Democracy Act](https://policyrisk.com/legislation/119-s-2838)
- [119-s-2819: Head Start for America's Children Act](https://policyrisk.com/legislation/119-s-2819)
- [119-s-5283: Momnibus Act](https://policyrisk.com/legislation/119-s-5283)
- [119-s-1507: Agriculture Resilience Act of 2025](https://policyrisk.com/legislation/119-s-1507)
- [All bills in Congress](https://policyrisk.com/legislation)

Source: PRIA, https://policyrisk.com/legislation/119-s-3356 (as of 2026-04-23).