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National Nuclear Security Administration

Latest Articles

The House wing of the Capitol building
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Article
Congress Set to Finalize Science Budgets Rejecting Trump Cuts
JAN 09, 2026
Darío Gil speaks from behind a desk. Behind him are several national lab directors and other hearing attendees.
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Article
Genesis Mission Starting to Take Shape
DEC 12, 2025
A photograph of a sign that reads "Nevada Test Site"
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Trump Order to ‘Start’ Nuclear Testing Raises Questions for DOE
NOV 05, 2025
dario gil DOE senate confirmation hearing
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Senate Confirms Slate of Stalled Science Nominees
SEP 19, 2025
A crowd of people giving a thumbs up in front of four American flags
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Tax and Spending Megabill Boosts Private R&D, Defense, NASA
JUL 03, 2025
Secretary of Energy Chris Wright meets with national lab directors in early 2025.
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DOE Secretary Defends Cuts to National Labs while Suggesting Future Boost
JUN 20, 2025
President Donald Trump and House Speaker Mike Johnson (R-LA) speak with reporters as they depart a meeting about the reconciliation bill at the U.S. Capitol on May 20.
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What’s in Store for Science in Republicans’ Reconciliation Bill
MAY 22, 2025
Energy Secretary Chris Wright testifies on the White House FY26 budget during a House Appropriations Committee hearing on May 7, 2025.
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DOE Secretary Defends Proposed Budget Cuts, Denies Freezing Funds
MAY 08, 2025
Energy Secretary Chris Wright meets with all 17 National Lab directors in April.
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DOE Eases Regulation of National Labs
APR 17, 2025
The Department of Energy headquarters in Washington, D.C.
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Trump Picks More Leaders for the Energy Department
FEB 19, 2025

Leadership and Staff

Brandon Williams headshot
Profile
Brandon Williams
NNSA Administrator
National Nuclear Security Administration
SEP 18, 2025 – Confirmed en bloc by 51-47 vote
Scott Pappano.jpg
Profile
Scott Pappano
Principal Deputy Administrator
National Nuclear Security Administration
SEP 18, 2025 – Confirmed en bloc by 51-47 vote
David Beck.jpg
Profile
David Beck
Deputy Administrator for Defense Programs
National Nuclear Security Administration
DEC 18, 2025 – Confirmed by 53-43 vote
Matt-Napoli-Headshot-200x300.jpg
Profile
Matthew Napoli
Deputy Administrator for Defense Nuclear Nonproliferation
National Nuclear Security Administration
SEP 18, 2025 – Confirmed en bloc by 51-47 vote

Recent Bill Actions

More from Bill Tracker
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Bill
S. 3106
No Nuclear Testing Without Approval Act of 2025
NOV 05, 2025 – Introduced in Senate
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Bill
H.R. 5894
Renewing Efforts to Suspend Testing and Reinforce Arms Control Initiatives Now (RESTRAIN) Act of 2025
OCT 31, 2025 – Introduced in House
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Bill
S. 3090
No Nuclear Testing Act of 2025
OCT 30, 2025 – Introduced in Senate
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Bill
S. 3053
A bill to require a plan to modernize the nuclear security enterprise.
OCT 23, 2025 – Introduced in Senate
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Bill
S. 2296
National Defense Authorization Act (NDAA) for Fiscal Year 2026
OCT 09, 2025 – Passed by Senate
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Bill
H.R. 3838
National Defense Authorization Act (NDAA) for Fiscal Year 2026
SEP 10, 2025 – Passed by House
More from Bill Tracker

Budget Tracker summary

More from Budget Tracker
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Budget Tracker
FY2026 National Nuclear Security Administration
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Budget Tracker
FY2025 National Nuclear Security Administration
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Budget Tracker
FY2024 National Nuclear Security Administration
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Budget Tracker
FY2023 National Nuclear Security Administration
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Budget Tracker
FY2022 National Nuclear Security Administration

Related Organizations

Department of Energy

Related Committees

House Armed Services Committee
House Energy-Water Development Appropriations Subcommittee
Senate Armed Services Committee
Senate Energy-Water Development Appropriations Subcommittee