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NNSA today issued its Final Site-Wide Environmental Impact Statement and Record of Decision to implement an Expanded Operations Alternative to manage Sandia National Laboratories, Albuquerque, New Mexico, in the coming years.

NNSA made available on its website, the final Supplemental Environmental Impact Statement and Amended Record of Decision, for Enhanced Plutonium Facility Utilization at Lawrence Livermore National Laboratory.

NNSA completed the first unit of the Mark (Mk) 4B reentry body for the W76 nuclear warhead supporting sea-based strategic deterrence.

NNSA announced the completion of Phase One of the Kansas City Non-Nuclear Expansion Transformation (KC NeXT). NNSA assumed property ownership ahead of schedule and on budget. Phase One includes a 700-seat classified office building.

NNSA achieved a significant milestone by completing a record number of 13 tritium extractions within nine months, spanning fiscal year (FY) 2025 and 2026. Tritium, an isotope of hydrogen, is a key element in nuclear weapons.

NNSA has completed the Last Production Unit of the W88 Alteration 370, a multiyear program to modernize the W88 nuclear warhead carried onboard Ohio-class ballistic missile submarines.

The Department of Energy’s National Nuclear Security Administration (DOE/NNSA) has approved Critical Decision-4, signifying the completion of the UPF PSF Subproject at the Y-12 National Security Complex.

NNSA competitively awarded a contract to BWXT Ordnance Tennessee, a subsidiary of BWX Technologies, Inc., for the licensing, design, and operation of a High Purity Depleted Uranium production capability at the contractor’s site in Jonesborough, Tennessee.

Major nuclear stockpile milestone assembled almost a year ahead of target date through streamlined production