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Information Technology Laboratory | NIST

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height="180"/> <source srcset="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2023/01/25/RMF-redesign-rounded-other_graphics-04.png?itok=-4x4EL15 1x, /web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/1200w_x_720h/public/images/2023/01/25/RMF-redesign-rounded-other_graphics-04.png?itok=C0hVxWfd 2x" media="(min-width: 480px)" type="image/png" width="600" height="360"/> <source srcset="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/300w_x_180h/public/images/2023/01/25/RMF-redesign-rounded-other_graphics-04.png?itok=WMZEXWk0 1x, /web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2023/01/25/RMF-redesign-rounded-other_graphics-04.png?itok=-4x4EL15 2x" media="(min-width: 0px)" type="image/png" width="300" height="180"/> <img loading="eager" src="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2023/01/25/RMF-redesign-rounded-other_graphics-04.png?itok=-4x4EL15" width="600" height="360" alt="Circular design includes elements of the AI Risk Management Framework: Govern, Measure, Manage, Map." typeof="foaf:Image"/> </picture> </a> </div> <div class="nist-hero__caption"> <a href="/web/20230317235907/https://www.nist.gov/news-events/news/2023/01/nist-risk-management-framework-aims-improve-trustworthiness-artificial"> <div class="text">NIST Risk Management Framework Aims to Improve Trustworthiness of Artificial Intelligence</div> </a> </div> </div> </div> <div class="nist-hero__item tablet:grid-col-4 "> <div class="nist-hero__item-inner"> <div class="nist-hero__image"> <a href="/web/20230317235907/https://www.nist.gov/news-events/news/2022/12/nist-drafts-revised-guidelines-digital-identification-federal-systems"> <picture> <source srcset="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2022/11/08/DigitalIDGuidelines_illustration_Concept-rev2.webp?itok=Zj-DfS5g 1x, /web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/1200w_x_720h/public/images/2022/11/08/DigitalIDGuidelines_illustration_Concept-rev2.webp?itok=PiVe1TX9 2x" media="(min-width: 480px)" type="image/webp" width="600" height="360"/> <source srcset="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/300w_x_180h/public/images/2022/11/08/DigitalIDGuidelines_illustration_Concept-rev2.webp?itok=HTfE1Hcr 1x, /web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2022/11/08/DigitalIDGuidelines_illustration_Concept-rev2.webp?itok=Zj-DfS5g 2x" media="(min-width: 0px)" type="image/webp" width="300" height="180"/> <source srcset="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2022/11/08/DigitalIDGuidelines_illustration_Concept-rev2.png?itok=Zj-DfS5g 1x, /web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/1200w_x_720h/public/images/2022/11/08/DigitalIDGuidelines_illustration_Concept-rev2.png?itok=PiVe1TX9 2x" media="(min-width: 480px)" type="image/png" width="600" height="360"/> <source srcset="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/300w_x_180h/public/images/2022/11/08/DigitalIDGuidelines_illustration_Concept-rev2.png?itok=HTfE1Hcr 1x, /web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2022/11/08/DigitalIDGuidelines_illustration_Concept-rev2.png?itok=Zj-DfS5g 2x" media="(min-width: 0px)" type="image/png" width="300" height="180"/> <img loading="eager" src="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2022/11/08/DigitalIDGuidelines_illustration_Concept-rev2.png?itok=Zj-DfS5g" width="600" height="360" alt="Icons for methods of establishing online identity, including a password and a physical ID card, are shown near a screen reading &quot;ACCESS GRANTED.&quot;" typeof="foaf:Image"/> </picture> </a> </div> <div class="nist-hero__caption"> <a href="/web/20230317235907/https://www.nist.gov/news-events/news/2022/12/nist-drafts-revised-guidelines-digital-identification-federal-systems"> <div class="text">NIST Drafts Revised Guidelines for Digital Identification in Federal Systems</div> </a> </div> </div> </div> <div class="nist-hero__item tablet:grid-col-4 "> <div class="nist-hero__item-inner"> <div class="nist-hero__image"> <a href="/web/20230317235907/https://www.nist.gov/spo/forensic-science-program/digital-investigation-techniques-nist-scientific-foundation-review"> <picture> <source srcset="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2022/05/05/20ITL003_JTAGMethod_cr.webp?itok=tJRg7jx1 1x, /web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/1200w_x_720h/public/images/2022/05/05/20ITL003_JTAGMethod_cr.webp?itok=-3q--xl4 2x" media="(min-width: 480px)" type="image/webp" width="600" height="360"/> <source srcset="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/300w_x_180h/public/images/2022/05/05/20ITL003_JTAGMethod_cr.webp?itok=ZelTcDvF 1x, /web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2022/05/05/20ITL003_JTAGMethod_cr.webp?itok=tJRg7jx1 2x" media="(min-width: 0px)" type="image/webp" width="300" height="180"/> <source srcset="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2022/05/05/20ITL003_JTAGMethod_cr.jpg?itok=tJRg7jx1 1x, /web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/1200w_x_720h/public/images/2022/05/05/20ITL003_JTAGMethod_cr.jpg?itok=-3q--xl4 2x" media="(min-width: 480px)" type="image/jpeg" width="600" height="360"/> <source srcset="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/300w_x_180h/public/images/2022/05/05/20ITL003_JTAGMethod_cr.jpg?itok=ZelTcDvF 1x, /web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2022/05/05/20ITL003_JTAGMethod_cr.jpg?itok=tJRg7jx1 2x" media="(min-width: 0px)" type="image/jpeg" width="300" height="180"/> <img loading="eager" src="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/600w_x_360h/public/images/2022/05/05/20ITL003_JTAGMethod_cr.jpg?itok=tJRg7jx1" width="600" height="360" alt="A closeup photograph of person's hands as they solder a wire onto a circuit board." typeof="foaf:Image"/> </picture> </a> </div> <div class="nist-hero__caption"> <a href="/web/20230317235907/https://www.nist.gov/spo/forensic-science-program/digital-investigation-techniques-nist-scientific-foundation-review"> <div class="text">NIST Finalizes Report on Scientific Foundations of Digital Forensic Methods</div> </a> </div> </div> </div> </div> </div> <div class="nist-content-row nist-content-row--width-legible paragraph paragraph--type--text paragraph--view-mode--default"> <div class="nist-block text-long"><h2 class="nist-block__title">WELCOME TO THE INFORMATION TECHNOLOGY LABORATORY</h2> <div class="nist-callout"> <h2 class="text-align-center">ITL’s Purpose | Cultivating Trust in IT and Metrology</h2> </div> <p>The Information Technology Laboratory (ITL) is one of NIST’s six research laboratories. ITL focuses on IT measurements, testing, and standards, and is a globally recognized and trusted source of high-quality, independent, and unbiased research and data. ITL’s mission, to cultivate trust in information technology (IT) and metrology, is accomplished using its world-class measurement and testing facilities and encompassing a wide range of areas of computer science, mathematics, statistics, and systems engineering.</p> <p>This non-regulatory role, along with ITL’s deep technical expertise in all fields of information technology, helps increase trust in IT worldwide.</p> <div class="grid-row grid-gap"> <div class="grid-col"> <h2 class="nist-block__title"><a href="/web/20230317235907/https://www.nist.gov/itl/itl-publications/itl-newsletters">ITL Newsletters</a></h2> <p>Published bimonthly, the ITL Newsletter features news articles on ITL's programs, projects, activities, and accomplishments. It announces selected new ITL publications and describes upcoming technical conferences and workshops. </p> <p><strong><a href="https://web.archive.org/web/20230317235907/https://public.govdelivery.com/accounts/USNIST/subscriber/new?qsp=USNIST_3">Sign up for ITL Newsletters</a>!</strong></p> </div> <div class="grid-col"> <h2 class="nist-block__title"><strong><a href="https://web.archive.org/web/20230317235907/https://csrc.nist.gov/publications/itl-bulletin">ITL BULLETINS</a></strong></h2> <p>The ITL Bulletin focuses on ITL’s research and collaborative activities in cybersecurity. It often announces new ITL publications in information security and gives an overview of the research contained within.</p> <p><strong><a href="https://web.archive.org/web/20230317235907/https://public.govdelivery.com/accounts/USNIST/subscriber/new?qsp=USNIST_3">Sign up for ITL Bulletins</a>!</strong></p> </div> </div></div> </div> <div class="paragraph paragraph--type--dynamic-content-list-ou paragraph--view-mode--default"> <div class="nist-block "> <h2 class="nist-block__title"> <div class="string">News and Updates</div> </h2> <div class="viewsreference"><div class="views-element-container"><div class="js-view-dom-id-1b5b0f3f96bc99cf8b94e7a484f25046a9e84e6602de037bc3dc0c2d81fab79c"> <div> <article role="article" about="/news-events/news/2023/03/nists-national-cybersecurity-center-excellence-renews-partnerships-state" typeof="schema:Article" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20230317235907/https://www.nist.gov/news-events/news/2023/03/nists-national-cybersecurity-center-excellence-renews-partnerships-state" hreflang="en"><img src="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2023/03/06/NIST_NCCoE_Partnership_02.jpg?itok=419nl8hq" width="100" height="67" alt="Four officials sit at a table signing documents in front of banners for the NIST National Cybersecurity Center of Excellence." loading="lazy" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230317235907/https://www.nist.gov/news-events/news/2023/03/nists-national-cybersecurity-center-excellence-renews-partnerships-state"><span property="schema:name">NIST’s National Cybersecurity Center of Excellence Renews Partnerships With State, County</span> </a></h3> <div class="nist-teaser__date"> <div class="daterange"><time datetime="2023-03-07T12:00:00Z">March 7, 2023</time> </div> </div> </header> <div class="nist-teaser__content"> <div property="schema:text" class="text-with-summary">Also launched: the NIST Small Business Cybersecurity Community of Interest.</div> </div> </div> </article> </div> <div> <article role="article" about="/news-events/news/2023/03/decision-revise-fips-180-4-secure-hash-standard-shs" typeof="schema:Article" class="nist-teaser"> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230317235907/https://www.nist.gov/news-events/news/2023/03/decision-revise-fips-180-4-secure-hash-standard-shs"><span property="schema:name">Decision to Revise FIPS 180-4, Secure Hash Standard (SHS)</span> </a></h3> <div class="nist-teaser__date"> <div class="daterange"><time datetime="2023-03-07T12:00:00Z">March 7, 2023</time> </div> </div> </header> <div class="nist-teaser__content"> <div property="schema:text" class="text-with-summary">In June 2022, NIST’s Crypto Publication Review Board initiated a review process for Federal Information Processing Standard (FIPS) 180-4, Secure Hash Standard</div> </div> </div> </article> </div> <div> <article role="article" about="/news-events/news/2023/02/nist-cloud-computing-forensic-reference-architecture-nist-requests-public" typeof="schema:Article" class="nist-teaser"> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230317235907/https://www.nist.gov/news-events/news/2023/02/nist-cloud-computing-forensic-reference-architecture-nist-requests-public"><span property="schema:name">NIST Cloud Computing Forensic Reference Architecture: NIST Requests Public Comments on SP 800-201</span> </a></h3> <div class="nist-teaser__date"> <div class="daterange"><time datetime="2023-02-08T12:00:00Z">February 8, 2023</time> </div> </div> </header> <div class="nist-teaser__content"> <div property="schema:text" class="text-with-summary">The initial public draft of NIST Special Publication (SP) 800-201, NIST Cloud Computing Forensic Reference Architecture, is now available for public comment</div> </div> </div> </article> </div> <div> <article role="article" about="/news-events/news/2023/02/announcement-proposal-update-nist-sp-800-38e-using-xts-aes-mode" typeof="schema:Article" class="nist-teaser"> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230317235907/https://www.nist.gov/news-events/news/2023/02/announcement-proposal-update-nist-sp-800-38e-using-xts-aes-mode"><span property="schema:name">Announcement of Proposal to Update NIST SP 800-38E, Using the XTS-AES Mode for Confidentiality on Storage Devices</span> </a></h3> <div class="nist-teaser__date"> <div class="daterange"><time datetime="2023-02-08T12:00:00Z">February 8, 2023</time> </div> </div> </header> <div class="nist-teaser__content"> <div property="schema:text" class="text-with-summary">In August 2021, NIST's Crypto Publication Review Board announced the review of NIST Special Publication (SP) 800-38E, Recommendation for Block Cipher Modes of</div> </div> </div> </article> </div> <footer> <div class="link-list"><a href="/web/20230317235907/https://www.nist.gov/news-events/news-updates/org/5641">View All News and Updates</a></div> </footer> </div> </div> </div> </div> </div> <div class="paragraph paragraph--type--dynamic-content-list-ou paragraph--view-mode--default"> <div class="nist-block "> <h2 class="nist-block__title"> <div class="string">Events</div> </h2> <div class="viewsreference"><div class="views-element-container"><div class="js-view-dom-id-8e80d26e5f895230c8537c714a999e56929f1f225242084ded8632eb16f56b44"> <div> <article role="article" about="/news-events/events/2023/05/random-bit-generation-workshop-2023" class="nist-teaser"> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230317235907/https://www.nist.gov/news-events/events/2023/05/random-bit-generation-workshop-2023"><span>Random Bit Generation Workshop 2023</span> </a></h3> <div class="nist-teaser__date"> <div class="smartdate">Tue, May 30 2023, 10:00am - Thu, Jun 1 2023, 3:00pm EDT</div> </div> </header> <div class="nist-teaser__content"> <div class="text-with-summary">NIST will be hosting a virtual workshop on Random Bit Generation (RBG) as specified in the SP 800-90 series of</div> </div> </div> </article> </div> <div> <article role="article" about="/news-events/events/2023/06/2023-iris-experts-group-ieg-meeting" class="nist-teaser"> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230317235907/https://www.nist.gov/news-events/events/2023/06/2023-iris-experts-group-ieg-meeting"><span>2023 Iris Experts Group (IEG) Meeting</span> </a></h3> <div class="nist-teaser__date"> <div class="smartdate">Thu, Jun 15 2023, 9:00am - 4:00pm EDT</div> </div> </header> <div class="nist-teaser__content"> <div class="text-with-summary">The Iris Experts Group (IEG) will hold their annual meeting on Thursday June 15, 2023. The meeting will be virtual using</div> </div> </div> </article> </div> <div> <article role="article" about="/news-events/events/2023/06/lightweight-cryptography-workshop-2023" class="nist-teaser"> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230317235907/https://www.nist.gov/news-events/events/2023/06/lightweight-cryptography-workshop-2023"><span>Lightweight Cryptography Workshop 2023</span> </a></h3> <div class="nist-teaser__date"> <div class="smartdate">Wed, Jun 21 2023, 10:00am - Thu, Jun 22 2023, 3:00pm EDT</div> </div> </header> <div class="nist-teaser__content"> <div class="text-with-summary">NIST will host its Sixth Lightweight Cryptography Workshop (virtual) on June 21-22, 2023. The aim of the workshop is to</div> </div> </div> </article> </div> <div> <article role="article" about="/news-events/events/2023/10/third-nist-workshop-block-cipher-modes-operation-2023" class="nist-teaser"> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230317235907/https://www.nist.gov/news-events/events/2023/10/third-nist-workshop-block-cipher-modes-operation-2023"><span>The Third NIST Workshop on Block Cipher Modes of Operation 2023</span> </a></h3> <div class="nist-teaser__date"> <div class="smartdate">Tue, Oct 3 2023, 9:00am - Wed, Oct 4 2023, 4:30pm EDT</div> </div> </header> <div class="nist-teaser__content"> <div class="text-with-summary">NIST will host the Third NIST Workshop on Block Cipher Modes of Operation on October 3-4, 2023, at the National</div> </div> </div> </article> </div> <footer> <div class="link-list"><a href="/web/20230317235907/https://www.nist.gov/news-events/upcoming-events/org/5641">View All Events</a></div> </footer> </div> </div> </div> </div> </div> <div class="paragraph paragraph--type--dynamic-content-list-ou paragraph--view-mode--default"> <div class="nist-block "> <h2 class="nist-block__title"> <div class="string">Awards</div> </h2> <div class="viewsreference"><div class="views-element-container"><div class="js-view-dom-id-8c1fa701d67409d8444bc2fe5a33a2f182add638391a0217cbffa4f9002cdfa9"> <div> <article role="article" about="/awards/raghu-kacker-acmd-and-d-richard-kuhn-csd-awarded-icst-most-influential-paper-award-mip" class="nist-teaser"> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230317235907/https://www.nist.gov/awards/raghu-kacker-acmd-and-d-richard-kuhn-csd-awarded-icst-most-influential-paper-award-mip"><span>Raghu Kacker (ACMD) and D. Richard Kuhn (CSD) awarded the ICST Most Influential Paper Award (MIP)</span> </a></h3> </header> <div class="nist-teaser__content"> <div class="text-long">Congratulations to Raghu Kacker (ACMD) and D. Richard Kuhn (CSD) for recently winning the Most Influential Paper Award (MIP) award for a</div> </div> </div> </article> </div> <div> <article role="article" about="/awards/irena-bojanova-honored-ieee-computer-society-golden-core-member-award" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20230317235907/https://www.nist.gov/awards/irena-bojanova-honored-ieee-computer-society-golden-core-member-award" hreflang="en"><img src="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2023/03/02/Irena%20Bojanova.jpg?itok=RJUYGhW6" width="99" height="100" alt="Irena Bojanova" loading="lazy" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230317235907/https://www.nist.gov/awards/irena-bojanova-honored-ieee-computer-society-golden-core-member-award"><span>Irena Bojanova honored with IEEE Computer Society Golden Core Member Award</span> </a></h3> </header> <div class="nist-teaser__content"> <div class="text-long">Irena Bojanova has been presented with the IEEE Computer Society Golden Core Member pin and plaque as one of the distinguished core of</div> </div> </div> </article> </div> <div> <article role="article" about="/nist-awards/2022-bronze-medal-award-avi-gopstein-cuong-nguyen-nelson-hastings-david-wollman" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20230317235907/https://www.nist.gov/nist-awards/2022-bronze-medal-award-avi-gopstein-cuong-nguyen-nelson-hastings-david-wollman" hreflang="en"><img src="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2022/12/21/Gopstein.Wollman.Hastings.Nguyen.Bronze.jpg?itok=0FJnCGb7" width="100" height="60" alt="Avi Gopstein, Cuong Nguyen, Nelson Hastings and David Wollman bronze award" loading="lazy" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230317235907/https://www.nist.gov/nist-awards/2022-bronze-medal-award-avi-gopstein-cuong-nguyen-nelson-hastings-david-wollman"><span>2022 - Bronze Medal Award---Avi Gopstein, Cuong Nguyen, Nelson Hastings, David Wollman</span> </a></h3> </header> <div class="nist-teaser__content"> <div class="string-long">For exemplary leadership and technical contributions in modernizing NIST’s strategic vision for power systems communication and information exchange.</div> </div> </div> </article> </div> <div> <article role="article" about="/nist-awards/2022-bronze-medal-award-huong-giang-t-nguyen-laura-espinal-blaza-toman" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20230317235907/https://www.nist.gov/nist-awards/2022-bronze-medal-award-huong-giang-t-nguyen-laura-espinal-blaza-toman" hreflang="en"><img src="/web/20230317235907im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2022/12/21/Espinal.Toman_.Nguyen.Bronze.jpg?itok=lvt8Qirm" width="100" height="67" alt="Huong Giang T. Nguyen, Laura Espinal, Blaza Toman Bronze award" loading="lazy" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20230317235907/https://www.nist.gov/nist-awards/2022-bronze-medal-award-huong-giang-t-nguyen-laura-espinal-blaza-toman"><span>2022 - Bronze Medal Award---Huong Giang T. Nguyen, Laura Espinal, Blaza Toman</span> </a></h3> </header> <div class="nist-teaser__content"> <div class="string-long">For the determination of high-pressure reference isotherms of nanoscale porous adsorbents.</div> </div> </div> </article> </div> <footer> <div class="link-list"><a href="/web/20230317235907/https://www.nist.gov/awards/org/5641">View All Awards</a></div> </footer> </div> </div> </div> </div> </div> </div> </div> </div> </div> <div class="grid-container"> <div class="nist-page__region nist-page__region--content-bottom"> <div class="nist-block nist-block--contact"> <h2 class="nist-block__title">Contacts</h2> <div class="nist-contact"> <ul class="nist-contact__items"> <li class="nist-contact__item"> <div class="nist-contact__name"> General Information </div> <div> <a href="https://web.archive.org/web/20230317235907/mailto:itl_inquiries@nist.gov">itl_inquiries@nist.gov</a> </div> <div> (301) 975-2900 </div> <div> </div> </li> </ul> </div> </div> </div> </div> </section> </div> <div data-elastic-exclude> <!-- nist-index-ignore-start --> <footer class="nist-footer padding-bottom-4"> <div class="grid-container nist-footer__info"> <div class="grid-row"> <div class="tablet:grid-col-6"> <div class="nist-footer__logo"> <a href="/web/20230317235907/https://www.nist.gov/" title="National Institute of Standards and Technology" rel="home"> <img class="nist-footer__logo-img" src="/web/20230317235907im_/https://www.nist.gov/libraries/nist-component-library/dist/img/logo/NIST-Logo-Brand-White.svg" alt="National Institute of Standards and Technology logo" width="300px" height="42px"/> </a> </div> <div class="nist-footer__contact"> <h3 class="nist-footer__contact-heading">HEADQUARTERS</h3> <address> 100 Bureau Drive<br> Gaithersburg, MD 20899<br> <a href="https://web.archive.org/web/20230317235907/tel:301-975-2000">301-975-2000</a> </address> <p> <a href="https://web.archive.org/web/20230317235907/mailto:do-webmaster@nist.gov">Webmaster</a> | <a href="https://web.archive.org/web/20230317235907/https://www.nist.gov/about-nist/contact-us">Contact Us</a> | <a href="https://web.archive.org/web/20230317235907/https://www.nist.gov/visit">Our Other Offices</a> </p> </div> </div> <div class="tablet:grid-col-6"> <div class="nist-footer__social-links"> <a class="nist-social nist-social--twitter-white" href="https://web.archive.org/web/20230317235907/https://twitter.com/NIST"> <span>Twitter</span> </a> <a class="nist-social nist-social--facebook-white" href="https://web.archive.org/web/20230317235907/https://www.facebook.com/NIST"> <span>Facebook</span> </a> <a class="nist-social nist-social--linkedin-white" href="https://web.archive.org/web/20230317235907/https://www.linkedin.com/company/nist"> <span>LinkedIn</span> </a> <a class="nist-social nist-social--instagram-white" href="https://web.archive.org/web/20230317235907/https://www.instagram.com/nist/"> <span>Instagram</span> </a> <a class="nist-social nist-social--youtube-white" href="https://web.archive.org/web/20230317235907/https://www.youtube.com/NIST"> <span>YouTube</span> </a> <a class="nist-social nist-social--giphy-white" href="https://web.archive.org/web/20230317235907/https://giphy.com/nist"> <span>Giphy</span> </a> <a class="nist-social nist-social--rss-white" href="https://web.archive.org/web/20230317235907/https://www.nist.gov/news-events/nist-rss-feeds"> <span>RSS Feed</span> </a> <a class="nist-social nist-social--envelope-white" href="https://web.archive.org/web/20230317235907/https://public.govdelivery.com/accounts/USNIST/subscriber/new"> <span>Mailing List</span> </a> </div> <div class="nist-footer__feedback"> How are we doing? 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