Sponsors (6)
The bill strengthens nonproliferation, public-safety protections, and democratic oversight by imposing a strong presumption against explosive nuclear testing and lengthy notification plus congressional approval, but it risks slowing or politicizing urgent military and technical responses and increasing costs for weapons stewardship.
All Americans (including taxpayers, urban communities, and military personnel) face a stronger default ban on explosive nuclear testing, lowering the risk of nuclear proliferation and reducing environmental and public-safety hazards from tests.
Congress, the public, and state governments (and stakeholders such as scientists and taxpayers) get at least 180 days of unclassified notification (with an optional classified annex) about proposed tests, giving time and information on purpose, costs, and timelines to enable oversight and public awareness.
Taxpayers and the public gain greater legislative control because a joint resolution enacted into law is required before testing, making Congress the ultimate approver and increasing democratic oversight of nuclear test decisions.
Military personnel and national defense planners could face delayed responses in a crisis because requiring congressional enactment (and supermajority Senate approval in some cases) for response tests can slow urgent military actions and reduce strategic flexibility.
Military personnel and weapons scientists could be constrained by the long notification period and detailed unclassified reporting, which might disclose sensitive information or limit the ability to carry out rapid technical fixes to preserve weapon safety and reliability.
Taxpayers and defense programs may incur delays and higher costs because even 'expedited' congressional procedures for tests driven by technical need still require legislative steps that can slow urgent weapons-reliability work.
Based on analysis of 2 sections of legislative text.
Prohibits U.S. explosive nuclear testing except after 180‑day notification and explicit congressional approval, with narrow exceptions for foreign tests and technical needs.
Introduced November 5, 2025 by Catherine Marie Cortez Masto · Last progress November 5, 2025
Prohibits the United States from conducting explosive nuclear tests after enactment except in three narrow situations: (1) in direct response to a foreign state's explosive nuclear test, (2) if there is a technical need for testing, or (3) if Congress enacts a joint resolution approving the test. Before any test under the first two exceptions, the President must submit a written notification to Congress at least 180 days in advance with an unclassified description (and optional classified annex) explaining the reasons, timelines, costs, and other relevant information. The bill also creates a specific congressional approval process for proposed tests, including different procedural paths for tests responding to foreign tests versus tests justified by technical need.