NNSA

Government & Politics abbreviation · US Federal Agency

NNSA
Stands forNational Nuclear Security Administration
CategoriesGovernment & Politics

NNSA stands for National Nuclear Security Administration, a US federal agency abbreviation.

Semi-autonomous agency within the Department of Energy that maintains the safety and reliability of the US nuclear weapons stockpile, works to prevent nuclear proliferation and supplies reactors for Navy ships. Its Administrator is also an Under Secretary of Energy.

Example: NNSA labs use supercomputer simulations to certify that aging warheads remain reliable.

Usage notes

Congress created NNSA in 2000 after security lapses at Los Alamos National Laboratory. It oversees Los Alamos, Lawrence Livermore and Sandia national laboratories and production sites such as the Pantex Plant in Texas. Its stockpile stewardship program relies on facilities like the National Ignition Facility at Livermore.

More US federal agency abbreviations

  • NHTSA – National Highway Traffic Safety Administration
  • NIAID – National Institute of Allergy and Infectious Diseases
  • NIH – National Institutes of Health
  • NIOSH – National Institute for Occupational Safety and Health
  • NIST – National Institute of Standards and Technology
  • NLRB – National Labor Relations Board
  • NOAA – National Oceanic and Atmospheric Administration
  • NPS – National Park Service
  • NRC – U.S. Nuclear Regulatory Commission
  • NRCS – Natural Resources Conservation Service
  • NRO – National Reconnaissance Office
  • NSA – National Security Agency

See all 152 US federal agency abbreviations →