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    National Nuclear Security Administration
    1. National Nuclear Security Administration
    2. The National Nuclear Security Administration Act (NNSA Act) and other relevant legislation

    The National Nuclear Security Administration Act created NNSA as part of the FY2000 National Defense Authorization Act. Its most recent revision was in February 2022.

    The Atomic Energy Defense Provisions are updated periodically. The most recent updates, as relevant to NNSA, was in March 2022.

    NNSA Act as amended, February 2022.pdf
    Atomic Energy Defense Provisions March 2022 Update with TOC.pdf
    National Nuclear Security Administration

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    Phone: 202-586-5000
    Media Inquiries: 202-586-7371

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