US Federal 2025-2026 Regular Session

US Federal House Bill HB4263

Introduced
 
Introduced
6/30/25  

Caption

123 GO Act

Summary

HB4263, the “123 GO Act,” is a foreign policy and energy competitiveness bill aimed at strengthening the U.S. nuclear industry’s ability to compete in overseas markets. It directs the Secretary of State to lead diplomatic negotiations for nuclear cooperation agreements under section 123 of the Atomic Energy Act of 1954, commonly known as “123 agreements,” and sets a goal of seeking at least 20 new agreements before January 3, 2029. It also calls for renegotiating or renewing existing agreements that are due to expire within the next decade. The bill further requires the State Department, working with the Departments of Commerce and Energy and subject to review by White House economic and science officials, to implement a program to improve the global competitiveness of U.S. nuclear suppliers, investors, and lenders. That program would focus on speeding up intergovernmental nuclear energy and fuel-supply agreements, promoting international adoption of the Convention on Supplementary Compensation for Nuclear Damage, identifying legal and regulatory barriers to U.S. nuclear exports, and encouraging foreign countries to choose U.S. nuclear technology, fuel, equipment, and services.

Impact

If enacted, the bill would not directly change domestic nuclear safety standards, but it would expand federal diplomatic and trade efforts related to nuclear exports and international nuclear cooperation. It would place new responsibilities on the Secretary of State and coordinate multiple agencies to pursue more bilateral nuclear agreements, reduce export barriers, and support U.S. firms competing for foreign nuclear projects. The practical effect would be to strengthen the policy framework for U.S. nuclear commerce abroad and potentially influence how foreign governments structure nuclear energy partnerships with the United States.

Sentiment

The available context suggests generally supportive sentiment, with the bill framed as a competitiveness and national security measure rather than a controversial regulatory overhaul. The bill’s findings reference an executive order on advanced nuclear reactor deployment for national security, indicating alignment with broader federal interest in nuclear expansion and strategic competition. No committee transcripts or recorded votes were provided, so there is no evidence in the record here of organized opposition or formal debate.

Contention

The main points of potential contention are likely to be the bill’s emphasis on accelerating nuclear exports and reducing statutory or regulatory burdens, which could raise concerns among critics about nuclear proliferation, safety oversight, liability, or environmental risk. Another possible issue is the directive to pursue a large number of new 123 agreements on an ambitious timeline, which may be viewed as overly aggressive or diplomatically difficult. Supporters are likely to be nuclear industry stakeholders, export advocates, and national security proponents, while skeptics may come from nonproliferation, environmental, or regulatory oversight perspectives.

Companion Bills

No companion bills found.

Previously Filed As

US HB7873

Taiwan Energy Security and Anti-Embargo Act of 2026

US HB4281

Bunker Buster Act of 2025

US HB3626

International Nuclear Energy Act of 2025

US HB1841

Peace on the Korean Peninsula Act

US HB2504

The U.S.-European Nuclear Energy Cooperation Act of 2025

US HB4107

GOLDEN DOME Act of 2025 Ground and Orbital Launched Defeat of Emergent Nuclear Destruction and Other Missile Engagements Act of 2025

US SB4243

No Nuclear Weapons for Saudi Arabia Act of 2026

US SB1801

International Nuclear Energy Act of 2025

US HB2913

Ukraine Support Act

US HB1743

UNITED Act Undertaking Negotiations on Investment and Trade for Economic Dynamism Act

Similar Bills

No similar bills found.