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The Y‑12 National Security Complex is a premier manufacturing facility dedicated to making our nation and the world a safer place and plays a vital role in the Department of Energy’s Nuclear Security Enterprise. Y‑12 helps ensure a safe and effective U.S. nuclear weapons deterrent.

Patriotic, safety-first, and detail-minded, the team at Y-12 works in unison to maintain the U.S. nuclear stockpile, reduce global threats, and ensure that the U.S. Navy has the nuclear fuel it needs to meet its mission.

Nuclear Deterrence Y-12's core mission is to ensure a safe, secure, and reliable U.S. nuclear deterrent, which is essential to national security. Global Security We train nuclear industry professionals, emergency responders and security forces from around the world. Naval Reactors

Apr 10, 2025 · OAK RIDGE, Tenn. – The National Nuclear Security Administration (NNSA) Office of Infrastructure recently presented Excellence Awards to teams supporting infrastructure at Y-12 National Security Complex and the Pantex Plant.

View highlights by decade since Y‑12's initial planning and wartime mission starting in 1942 through its current missions today. Click a decade below to show its highlights.

Our Hidden Past: The Prophet of Oak RidgeTime:

Today, Y‑12 is a unique national asset in the manufacture, processing and storage of special materials vital to our national security and contributes to the prevention of the spread of weapons of mass destruction.

Apr 8, 2025 · The Y‑12 Division Security Officer (DSO) program is designed to ensure Safeguards and Security (with an emphasis on Information Security) is intricately entwined with each Y‑12 organization and its operational needs through a centralized representative or group of representatives.

The Y-12 National Security Complex in Oak Ridge, Tennessee, is one of six production facilities in the National Nuclear Security Administration’s (NNSA’s) Nuclear Security Enterprise.