| Purpose of Visit | To get access, you MUST apply each time | Deadlines |
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| First Time Facility User |
Click here for detailed instructions.
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35 calendar days before arrival is required unless you are a U.S. citizen or permanent resident (with a green card), in which case a minimum of two business days is needed.
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Returning Facility User
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Click here to log in to your NCNR IMS account and request a visit.
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Two business days in advance is needed.
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Non-User Visit
(examples: tour, talk, seminar, etc.)
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Click here to access our visitor registration page and fill out the request form.
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Two business days in advance is needed.
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All other requests
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Contact our User Office at ncnraccess@nist.gov or (301) 975-8200.
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