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S 2930119th CongressIn Committee

Smarter Approaches to Nuclear Expenditures Act

Introduced: Sep 29, 2025
Sponsor: Sen. Markey, Edward J. [D-MA] (D-Massachusetts)
Defense & National SecurityEconomy & Taxes
Standard Summary
Comprehensive overview in 1-2 paragraphs

Smarter Approaches to Nuclear Expenditures Act (S. 2930) would dramatically scale back U.S. nuclear forces and prohibit the deployment of low-yield or nonstrategic nuclear weapons, while imposing new reporting and planning requirements for the Defense Department (DoD) and the National Nuclear Security Administration (NNSA). The bill sets explicit caps on force structure (submarines, ICBMs, deployed warheads, and bombers), bans several modernization and weaponization programs (including low-yield weapons, space-based missile defenses, and certain new missiles), and places tight controls on plutonium pit production and the Uranium Processing Facility. It would require the administration to produce integrated schedules and cost estimates, with annual reporting to Congress on plans and spending. The stated aim is to shrink spending on nuclear weapons and neutralize support for low-yield capabilities, while maintaining a nuclear deterrent. Potential impact includes substantial reductions in planned procurement and modernization, potential savings in the federal budget over time, and a shift in the U.S. deterrence posture. Critics may argue that the caps and prohibitions could constrain modernization and readiness or affect peacetime deterrence and alliance planning. Supporters would emphasize budget discipline, avoidance of unnecessary risk, and alignment with prudent modernization choices.

Key Points

  • 1Cap and reduction of nuclear forces and procurement
  • 2- Caps include: no more than eight Columbia-class submarines; no more than 150 intercontinental ballistic missiles (ICBMs); no more than 1,000 deployed strategic warheads; and no more than 80 B-21 long-range penetrating bombers.
  • 3Prohibitions on new weapons and capabilities
  • 4- Prohibits the F-35 from carrying a nuclear mission; bars new air-launched cruise missiles or related life-extension work; bars new ICBMs (LGM-35 Sentinel); bars space-based missile defense; bars W76-2 low-yield warhead deployment; bars a new submarine-launched cruise missile capable of carrying a low-yield or nonstrategic warhead; and bars the W-93 warhead.
  • 5Plutonium pit production and related facilities
  • 6- Limits expansion of plutonium pit production at Los Alamos and Savannah River sites until an integrated master schedule and cost estimate for 2026–2036 is submitted, with schedules aligned to GAO-type standards.
  • 7Uranium Processing Facility
  • 8- Prohibits funding for the Uranium Processing Facility at the Y-12 complex (Oak Ridge) for 2026 and beyond.
  • 9Reporting and cost transparency
  • 10- Requires initial and annual joint DoD/DOE plans for implementing the act; requires annual nuclear weapons accounting and a cost-estimate report outlining potential savings from the reductions.

Impact Areas

Primary group/area affected- Department of Defense (DoD) and National Nuclear Security Administration (NNSA) activities, budgets, and modernization programs; U.S. strategic deterrence posture.Secondary group/area affected- U.S. defense contractors and suppliers involved in nuclear weapons programs; federal budget and appropriations processes; allied defense planning and consultation on deterrence assumptions.Additional impacts- Potential shifts in national security policy debates (deterrence versus arms control), and possible implications for nonproliferation diplomacy depending on how reductions are perceived by allies and partners. The bill also increases congressional oversight through mandated reporting and cost-tracking measures.
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