NNSA & Nuclear Security Enterprise support nation’s weather preparedness
NSC leader recognized as community role model
Apex Gold discussion fosters international cooperation in run-up to 2016 Nuclear Security Summit
NASA features LLNL star-formation simulations
NNSA & DOE Employees Use Tiny Smartphone Microscopes to Teach STEM
  • NNSA and weather
  • Award for role model
  • Apex Gold
  • Star simlations
  • Smartphone microscopes
Maintaining the Stockpile
Emergency Response
Powering the Navy
Oversight and Change


About Us

Established by Congress in 2000, NNSA is a semi-autonomous agency within the U.S. Department of Energy responsible for enhancing national security through the military application of nuclear science. NNSA maintains and enhances the safety, security, and effectiveness of the U.S. nuclear weapons stockpile without nuclear explosive testing; works to reduce the global danger from weapons of mass destruction; provides the U.S. Navy with safe and effective nuclear propulsion; and responds to nuclear and radiological emergencies in the U.S. and abroad.