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About Us

The NNSA has offices and representatives across the world providing a wide range of services. Learn more about us, our people and programs.

Programs thumbnail
Our Programs
NNSA's program support is divided into several key program areas including Defense, Nuclear Nonproliferation, Naval Reactors, Emergency Operations, Infrastructure and Environment, Nuclear Security, Management and Administration and the Office of the Administrator. Each program area is focused on specific challenges.
Our History

The NNSA was established by Congress in 2000 as a separately organized agency within the U.S. Department of Energy, responsible for the management and security of the nation’s nuclear weapons, nuclear nonproliferation, and naval reactor programs.

Who We Are
Who We Are
NNSA has the best science, technology and engineering in the world, and we are fortunate to have dedicated professionals who are truly leaders in their fields working every day to promote our nuclear security mission.
Our Leadership
Our Leadership

The NNSA plays a critical role in ensuring the security of our Nation by maintaining the safety, security, and effectiveness of the U.S. nuclear weapons stockpile without nuclear testing; reducing the global danger from the proliferation of nuclear weapons and materials; providing the U.S. Navy with safe and effective nuclear propulsion; and providing the Nation with an effective nuclear counterterrorism and incident response capability.

Our Locations icon
Our Locations

The NNSA’s nuclear security enterprise spans eight sites, including three national laboratories, with more than six decades of cutting-edge nuclear security experience. That history and technical expertise enables NNSA to accomplish its work across its four mission areas.

Budget
Budget
Our Operations
Our Operations