National Nuclear Security Administration

10/15/2026

Experts from NNSA's Radiological Assistance Program (RAP) Region 4 were on the ground providing radiological security overwatch at the Albuquerque International Balloon Fiesta.

Working alongside local, state, and federal partners, our team ensures a secure environment so everyone can look up and enjoy the view.

10/15/2026

Maintaining America's technological edge requires collaboration between government and private enterprise.

At NNSA Innovation Day 2026 in Silicon Valley, leaders from across the Nuclear Security Enterprise met with industry, venture capital, and universities to accelerate critical capabilities in advanced manufacturing, materials processing, digital transformation, and Super Intelligence via the Genesis Mission.

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.

10/14/2026

It’s Cybersecurity Awareness Month!

Practice strong digital habits to be a Cyber Warrior:
🔑 Use long passphrases
🛡️ Enable MFA
🛑 Pause & verify before clicking links
🔄 Turn on automatic software updates
🔒 Keep sensitive info out of public tools

10/13/2026

Happy 251st Birthday to the U.S. Navy!

At NNSA, we are proud of our longstanding partnership with the U.S. Navy and our shared commitment to strengthening America's national security and defending our nation.

Thank you to the brave men and women serving our nation at sea. Semper Fortis! 🇺🇸

10/09/2026

Protecting the homeland from radiological and nuclear threats is about more than detection. It requires expertise, policy, and real-world operational experience before those threats reach America.

That’s why a team from NNSA’s Office of Nuclear Smuggling Detection and Deterrence went to Udaipur, India, last month for the 7th U.S.-India Radiological and Nuclear Security Dialogue. Co-hosted with India’s Institute of Peace and Conflict Studies, it brought government and law enforcement experts from the United States, India, and other organizations to address smuggling challenges and prepare for incidents that can cross borders and oceans.

Participants turned the discussion ideas into action through a multi-day exercise.

These partnerships address emerging threats closer to their source, reinforcing efforts to protect the homeland and keep Americans safe.

10/08/2026

Repurposing legacy infrastructure delivers faster, smarter results.

Using commercial design-build practices, Savannah River Site is turning a legacy site into a rapid prototyping and advanced manufacturing center by FY27, saving costs while expanding capacity.

https://public.srs.gov/2026/09/srns-restoration-project-advances-rd-capabilities/

10/08/2026

NNSA, U.S. Department of State and Kemenko Perekonomian RI brought regional partners together in Jakarta for the 5th Southeast Asian Forum on Export Control to support secure and responsible trade across Southeast Asia.

https://id.usembassy.gov/united-states-and-indonesia-co-host-2026-indonesia-strategic-trade-management-idstm-summit-in-jakarta/

10/07/2026

The W93 warhead and Mk7 reentry body have entered the Engineering and Manufacturing Development phase in partnership with U.S. Navy Strategic Systems Programs.

Data from NNSA's Sandia National Labs's recent Atrax sounding rocket launch is directly validating advanced computer models to de-risk and accelerate development of the W93/Mk7 system.

This milestone advances the first new U.S. warhead and reentry system design in nearly 40 years to support our sea-based nuclear deterrence mission.

The W93 warhead and Mk7 reentry body assembly are part of the Trident II D5 Life Extension (D5LE2) which will modernize the sea-based leg of the nuclear

10/07/2026

Removing dangerous materials and keeping Americans safe.

NNSA and Idaho National Laboratory partnered to remove high-risk cesium-137 irradiators in North Dakota and Vermont, making them the 14th & 15th states free of high-risk cesium.

97% of targeted devices nationwide are now eliminated or scheduled for replacement!

10/07/2026

To outpace evolving aerial threats, NNSA has partnered with U.S. Department of War’s JIATF-401.

By sharing C-UAS test data and research, we are speeding up drone defense deployments across our nuclear weapons labs, plants, and sites.

The nuclear agency’s expanded partnership with DOD’s Joint Interagency Task Force 401 is meant to reduce duplicative testing and speed up drone defense deployments.