National Nuclear Security Administration (NNSA)National Nuclear Security Administration (NNSA)U.S. Department of Energy
The National Nuclear Security Administration (NNSA) is responsible for the management and security of U.S. nuclear weapons, nuclear nonproliferation, and naval reactor programs. It also responds to nuclear and radiological emergencies both in the U.S. and abroad. Additionally, NNSA federal agents provide safe and secure transportation of nuclear weapons and components and special nuclear materials along with other missions supporting the national security.
NNSA’s Global Threat Reduction Initiative (GTRI) works to identify, secure, remove or facilitate the disposition of high risk vulnerable nuclear and radiological materials around the world that pose a threat to the U.S. and the international community.
GTRI achieves its mission via three initiatives which provide a comprehensive approach to preventing terrorists’ access to nuclear and radiological materials:
- Convert: Convert research reactors and isotope production facilities from the use of highly enriched uranium (HEU) to low enriched uranium (LEU) or verify their shutdown
- Remove: Remove or confirm the disposition of excess nuclear and radiological materials
- Protect: Protect high priority nuclear and radiological materials from theft
GTRI and its predecessor programs have converted or verified the shutdown of 88 HEU research reactors and isotope production facilities; removed or confirmed the disposition of more than 5,140 kilograms of HEU and plutonium – more than enough material for more than 205 nuclear bombs; secured more than 775 bombs worth of HEU and plutonium associated with the BN-350 reactor in Kazakhstan; secured more than 1,700 radiological sites around the world containing millions of curies – enough for tens of thousands of large dirty bombs; recovered more than 36,000 orphan and disused radiological sources in the United States; and recovered 810 radioisotope thermoelectric generators from Russia containing millions of curies of activity.
Contract and project management oversight responsibility for NNSA’s labs, plants and special facilities was given to the site offices:
Editor’s Picks: Select articles related to NNSA. Links may lead to external sites.
- FY19 Nuclear Security Budget: More for Weapons, Less for Nonproliferation (Feb 2018)
- Source Physics Experiment Aims to Advance Nuclear Explosion Monitoring (Oct 2016)
- Radiological Assistance Program Team Training (Mar 2016)
- NNSA Safety Office Recognized for Safe Operation of Nuclear Facilities (Feb 2016)
- Brookhaven Lab Wins Award for Novel Radiation Detector (Nov 2014)
- US, UK, Kazakhstan Secure Radiological Transportation Vehicles (Oct 2014)
- NNSA National Labs Earn Nine R&D 100 Awards (Jul 2014)
- Efforts to Eliminate HEU in Medical Isotope Production (Jul 2014)
- NNSA, Argentina Transition Radiation Detection System (May 2014)
- NNSA, Djibouti Transition Radiation Detection System (Mar 2014)
- NNSA to Conduct Aerial Radiation Assessment Survey in NJ, NY (Jan 2014)
- Advanced Radiological Assistance Training for Iraqi First Responders (Dec 2013)
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