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From weapons modernization and production to infrastructure, counterterrorism, and nonproliferation, the Nuclear Security Enterprise is delivering results.
Since 2016, its Facility Disposition Program has demolished more than 250 facilities and cleared approximately 3.7 million square feet of degraded infrastructure—roughly the equivalent of 64 football fields.
NNSA's Innovation Day 2026 at the University of California Santa Clara Silicon Valley Extension site brought together leaders from American businesses, venture capital investors, universities, and the Nuclear Security Enterprise.
The Phoenix Ascent Exercise 2026 (PAX-26) was a two-day exercise that tested DOE/NNSA's emergency management structures, validated operating procedures, and evaluated its ability to sustain mission-essential functions during national emergencies.
2026 has been a Hot NEST Summer! NNSA’s Nuclear Emergency Support Team spent the season monitoring threats from the air, in the crowds, and behind the scenes at major events all season. Quiet, professional, and keeping America safe all summer long.
NNSA's Office of Congressional and Intergovernmental Affairs prepped for key budget hearings, coordinated with state and local partners, and facilitated visits to national laboratories and radiological cleanup operations.
Leaders from NNSA’s Office of Research, Development, Test & Evaluation traveled to the University of Rochester in New York to celebrate the 50th anniversary of the Laboratory for Laser Energetics.
NNSA Administrator Brandon M. Williams pays tribute to Admiral Hyman G. Rickover, the pivotal figure in developing nuclear propulsion for the U.S. Navy recognized as the "Father of the Nuclear Navy", whose leadership and innovations significantly enhanced U.S. national security during the Cold War and beyond.
NNSA's Office of Counterterrorism and Counterproliferation conducts maritime radiological interdiction and consequence management training in Greece and Romania with NATO allies.
NNSA’s Office of Congressional and Intergovernmental Affairs’ Strategic Engagement is Driving Modernization, Partnership, and National Security in 2026