Current Operating Status
Effective October 1, 2025 — Standard Operating Status
Last updated March 17, 2026
The NAS Building and the Keck Center in Washington, DC, are currently closed to the public. Only visitors with an appointment for a specific meeting or purpose will be allowed entry with a valid government ID. Visitors may only enter the NAS Building through the C Street entrance.
Visitors with an appointment for a specific meeting or purpose will be allowed entry with a valid government ID to the Beckman Center in Irvine, CA. See our visitors page for more information.
Current operating status information is also available on our phone hotline at 202-337-8566.
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The National Academies of Sciences, Engineering, and Medicine follow rigorous policies and procedures that uphold integrity, transparency, and public confidence in our work.
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NAS Building Guided Tours Available!
Participate in a one-hour guided tour of the historic National Academy of Sciences building, highlighting its distinctive architecture, renowned artwork, and the intersection of art, science, and culture.