No Nuclear Testing Act of 2025

Ban on explosive nuclear testing

If enacted, the bill would bar the government from using funds to conduct or prepare for any explosive nuclear weapons test that produces a yield. The ban would apply to funds authorized for fiscal year 2026 and to earlier-year funds still available for obligation when the bill is signed. It would cover Defense Department components, the National Nuclear Security Administration, national laboratories, and their contractors. The bill would not limit stockpile stewardship work that follows the zero-yield standard and other legal requirements. This change would take effect upon enactment.