Current Operating Status
Effective October 1, 2025 — Standard Operating Status
Last updated February 2, 2026 following the conclusion of inclement weather operations.
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.
Policies and Procedures
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.