One of NNSA’s core missions is to ensure the United States maintains a safe, secure, and reliable nuclear stockpile through the application of unparalleled science, technology, engineering, and …

The National Nuclear Security Administration (NNSA) is a United States federal agency responsible for safeguarding national security through the military application of nuclear science.

National Nuclear Security Administration (NNSA) The National Nuclear Security Administration (NNSA) works to ensure that the nation's stockpile of nuclear weapons is safe and secure.

Nov 18, 2025 · The National Nuclear Security Administration (NNSA) was created by Congress through the National Defense Authorization Act for Fiscal Year 2000 (113 Stat. 512) to bring …

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 …

It executes unique national-level experiments, supports national security customers, manages the legacy of the nuclear deterrent, and provide long-term environmental stewardship for site …

NNSA works to prevent nuclear weapon proliferation and reduce the threat of nuclear and radiological terrorism around the world. The agency endeavors to prevent the development of …

Dec 23, 2025 · The National Nuclear Security Administration (NNSA) was established by Congress in 2000, and serves as a semi-autonomous agency within DOE responsible for …

NNSA's plans and programs to prevent the proliferation of nuclear weapons, counter the threat of nuclear terrorism, and respond to nuclear and radiological incidents around the world.

Leadership of the National Nuclear Security Administration (NNSA).