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The National Institute of Standards and Technology is committed to making its web sites accessible to all NIST customers and staff in acc

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Accessibility | NIST Skip to main content An official website of the United States government Here’s how you know Here’s how you know Official websites use .gov A .gov website belongs to an official government organization in the United States. Secure .gov websites use HTTPS A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. https://www.nist.gov/admr/oism/accessibility Search NIST Menu Close Publications What We Do All Topics Advanced communications Artificial intelligence Bioscience Buildings and construction Chemistry Cybersecurity and Privacy Electronics Energy Environment Fire Forensic science Health Information technology Infrastructure Manufacturing Materials Mathematics and statistics Metrology Nanotechnology Neutron research Performance excellence Physics Public safety Quantum information science Resilience Standards Transportation Labs & Major Programs Laboratories Communications Technology Laboratory Engineering Laboratory Information Technology Laboratory Material Measurement Laboratory Physical Measurement Laboratory User Facilities NIST Center for Neutron Research CNST NanoFab Research Test Beds Research Projects Tools & Instruments Major Programs CHIPS for America Initiative Congressionally Identified Project Program (CIPP) Manufacturing Extension Partnership (MEP) Manufacturing USA Office of Advanced Manufacturing Technology Partnerships Office Services & Resources Measurements and Standards Calibration Services Laboratory Accreditation (NVLAP) Quality System Standard Reference Materials (SRMs) Standard Reference Instruments (SRIs) Standards.gov Time Services Office of Weights and Measures Software Data Chemistry WebBook National Vulnerability Database Physical Reference Data Standard Reference Data (SRD) Storefront License & Patents Computer Security Resource Center (CSRC) NIST Research Library News & Events News Events Blogs NIST In Focus Feature Stories Awards Video Gallery Image Gallery Media Contacts About NIST About Us Leadership Organization Structure Budget & Planning Contact Us Visit Careers Student programs Work with NIST History NIST Digital Archives NIST Museum NIST and the Nobel Educational Resources Accessibility The National Institute of Standards and Technology is committed to making its web sites accessible to all NIST customers and staff in accordance with provisions of Section 508 of the Rehabilitation Act Amendments of 1998. In addition, we follow the Department of Commerce Accessibility Policy. If you require any accommodation (e.g., captioning, sign language interpreting, mobility, etc.) to fully participate in any event or engagement, please reach out to the host or session coordinator directly. If you have difficulty obtaining information from any NIST web site, or have questions, comments or suggestion for improvement, please contact 508 [at] nist.gov (508[at]nist[dot]gov) to get the material in another format. You should provide the URL of the web site referencing that information. Created September 20, 2021, Updated July 21, 2025 Was this page helpful? HEADQUARTERS 100 Bureau Drive Gaithersburg, MD 20899 301-975-2000 Webmaster | Contact Us | Our Other Offices X.com Facebook LinkedIn Instagram YouTube Giphy RSS Feed Mailing List How are we doing? Feedback Site Privacy Accessibility Privacy Program Copyright & Disclaimers Vulnerability Disclosure No Fear Act Policy FOIA Environmental Policy Scientific Integrity Information Quality Standards Commerce.gov Science.gov USA.gov Vote.gov