Communications Technology Laboratory

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src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/images/2022/04/20/Partner%20with%20us.png" typeof="foaf:Image" width="472"/></a><figcaption class="nist-image__caption"><div class="nist-image__caption-content" data-caption-editable="true"> </div> </figcaption></figure></div> <div class="grid-col"> <figure class="nist-image" data-link="https://doi.org/10.6028/NIST.SP.1293"><a href="https://web.archive.org/web/20231204110428/https://doi.org/10.6028/NIST.SP.1293"><img alt="NextG Communications Research and Development Gaps Report" height="319" loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/480_x_480_limit/public/images/2023/11/24/WirelessGaps.png?itok=pQJTq0Yi" typeof="foaf:Image" width="480"/></a><figcaption class="nist-image__caption"><div class="nist-image__caption-content" data-caption-editable="true"> </div> <div class="nist-image__credit"> <span class="nist-image__credit-label">Credit:</span> NextG Communications Research and Development Gaps Report </div> </figcaption></figure></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"> <figure class="align-center nist-image"><img alt="CTL Mission Vision 2" height="438" loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/960_x_960_limit/public/images/2022/06/14/CTL%20Mission%20and%20Title3.png?itok=0oAW3nCG" typeof="foaf:Image" width="960"/><figcaption class="nist-image__caption"><div class="nist-image__caption-content" data-caption-editable="true"> </div> </figcaption></figure><p> </p> <div class="grid-row grid-gap"> <h2 class="nist-block__title">Our Focus Areas</h2> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <div class="grid-row grid-gap"> <div class="grid-col"> <figure class="align-center nist-image" data-link="https://www.nist.gov/programs-projects/core-network-technologies"><a href="https://web.archive.org/web/20231204110428/https://www.nist.gov/programs-projects/core-network-technologies"><img alt="Core Network Tech 2" height="319" loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/480_x_480_limit/public/images/2022/04/24/Core%20Network2.png?itok=iShNHl0Z" typeof="foaf:Image" width="480"/></a><figcaption class="nist-image__caption"><div class="nist-image__caption-content" data-caption-editable="true"> </div> </figcaption></figure></div> <div class="grid-col"> <figure class="align-center nist-image" data-link="https://www.nist.gov/programs-projects/fundamental-electromagnetic-technologies-and-standards"><a href="https://web.archive.org/web/20231204110428/https://www.nist.gov/programs-projects/fundamental-electromagnetic-technologies-and-standards"><img alt="Fundamental Electromagnetic Technologies & Standards " height="319" loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/480_x_480_limit/public/images/2022/04/24/Fund%20Electromagnetic2%20.png?itok=lvaXUo1W" typeof="foaf:Image" width="480"/></a><figcaption class="nist-image__caption"><div class="nist-image__caption-content" data-caption-editable="true"> </div> </figcaption></figure></div> <div class="grid-col"> <figure class="align-center nist-image" data-link="https://www.nist.gov/advanced-communications/nextg-5g-and-beyond-technology"><a href="https://web.archive.org/web/20231204110428/https://www.nist.gov/advanced-communications/nextg-5g-and-beyond-technology"><img alt="Next Generation Wireless Systems" height="319" loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/480_x_480_limit/public/images/2022/04/24/Next%20Generation%20Wireless2.png?itok=0SrV96YJ" typeof="foaf:Image" width="480"/></a><figcaption class="nist-image__caption"><div class="nist-image__caption-content" data-caption-editable="true"> </div> </figcaption></figure></div> </div> <div class="grid-row grid-gap"> <div class="grid-col"> <figure class="align-center nist-image" data-link="https://www.nist.gov/ctl/pscr/about/public-safety-innovation-impacts"><a href="https://web.archive.org/web/20231204110428/https://www.nist.gov/ctl/pscr/about/public-safety-innovation-impacts"><img alt="Public Safety Communications" height="319" loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/480_x_480_limit/public/images/2022/04/24/Public%20Safety2.png?itok=Z5Jc6_rJ" typeof="foaf:Image" width="480"/></a><figcaption class="nist-image__caption"><div class="nist-image__caption-content" data-caption-editable="true"> </div> </figcaption></figure></div> <div class="grid-col"> <figure class="align-center nist-image" data-link="https://www.nist.gov/programs-projects/smart-infrastructure-and-manufacturing"><a href="https://web.archive.org/web/20231204110428/https://www.nist.gov/programs-projects/smart-infrastructure-and-manufacturing"><img alt="Smart Infrastructure & Manufacturing " height="319" loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/480_x_480_limit/public/images/2022/04/24/Smart%20Infrastructure2.png?itok=MMiFln4-" typeof="foaf:Image" width="480"/></a><figcaption class="nist-image__caption"><div class="nist-image__caption-content" data-caption-editable="true"> </div> </figcaption></figure></div> <div class="grid-col"> <figure class="align-center nist-image" data-link="https://www.nist.gov/programs-projects/spectrum-sharing-sensing"><a href="https://web.archive.org/web/20231204110428/https://www.nist.gov/programs-projects/spectrum-sharing-sensing"><img alt="Spectrum Sharing & Sensing " height="319" loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/480_x_480_limit/public/images/2022/04/24/Spectrum%20Sharing%20%26%20Sensing2.png?itok=CY474YHg" typeof="foaf:Image" width="480"/></a><figcaption class="nist-image__caption"><div class="nist-image__caption-content" data-caption-editable="true"> </div> </figcaption></figure></div> </div> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <div class="grid-row grid-gap"> <div class="grid-col"> </div> <div class="grid-col"> </div> </div> </div> <div class="grid-row grid-gap"> <div class="grid-col"> </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-24a2c8c7089b386efe091ee1603dac6efd5953f34e0654be690aa9b4a7bf3227"> <div> <article about="/news-events/news/2023/11/nist-contributes-iso-standard-enabling-product-data-interoperability" typeof="schema:Article" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20231204110428/https://www.nist.gov/news-events/news/2023/11/nist-contributes-iso-standard-enabling-product-data-interoperability" hreflang="en"><img loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2023/11/15/NIST%20Contributes%20to%20ISO%20Standard%20Enabling%20Product%20Data%20Interoperability.jpg?itok=RBw0VgSR" width="100" height="19" alt="NIST Contributes to ISO Standard Enabling Product Data Interoperability " typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20231204110428/https://www.nist.gov/news-events/news/2023/11/nist-contributes-iso-standard-enabling-product-data-interoperability"><span property="schema:name">NIST Contributes to ISO Standard Enabling Product Data Interoperability</span> </a></h3> <div class="nist-teaser__date"> <div class="daterange"><time datetime="2023-11-01T12:00:00Z">November 1, 2023</time> </div> </div> </header> <div class="nist-teaser__content"> <div property="schema:text" class="text-with-summary"> In October 2023, NIST researchers Allison Barnard Feeney, Rosemary Astheimer, and Sylvere Krima participated in a bi-annual meeting of ISO Technical Committee </div> </div> </div> </article> </div> <div> <article about="/news-events/news/2023/11/nist-research-leader-presents-first-eu-roadview-webinar" typeof="schema:Article" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20231204110428/https://www.nist.gov/news-events/news/2023/11/nist-research-leader-presents-first-eu-roadview-webinar" hreflang="en"><img loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2023/11/17/NIST%20Research%20Leader%20Presents%20at%20First%20EU%20ROADVIEW%20Webinar.png?itok=LXMA-Tfk" width="100" height="56" alt="NIST Research Leader Presents at First EU ROADVIEW Webinar" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20231204110428/https://www.nist.gov/news-events/news/2023/11/nist-research-leader-presents-first-eu-roadview-webinar"><span property="schema:name">NIST Research Leader Presents at First EU ROADVIEW Webinar</span> </a></h3> <div class="nist-teaser__date"> <div class="daterange"><time datetime="2023-11-01T12:00:00Z">November 1, 2023</time> </div> </div> </header> <div class="nist-teaser__content"> <div property="schema:text" class="text-with-summary"> On October 2, 2023, NIST Research Leader Ed Griffor presented at the inaugural EU ROADVIEW Webinar “An Introduction to the Automated Vehicle Industry.” This </div> </div> </div> </article> </div> <div> <article about="/news-events/news/2023/11/nist-engages-stakeholders-us-national-standards-strategy-business" typeof="schema:Article" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20231204110428/https://www.nist.gov/news-events/news/2023/11/nist-engages-stakeholders-us-national-standards-strategy-business" hreflang="en"><img loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2023/11/15/NIST%20Engages%20Stakeholders%20in%20U.S.%20National%20Standards%20Strategy%20Business%20Roundtable%20in%20Detroit.png?itok=IdTQOiK_" width="100" height="56" alt="NIST Engages Stakeholders in U.S. National Standards Strategy Business Roundtable in Detroit" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20231204110428/https://www.nist.gov/news-events/news/2023/11/nist-engages-stakeholders-us-national-standards-strategy-business"><span property="schema:name">NIST Engages Stakeholders in U.S. National Standards Strategy Business Roundtable in Detroit</span> </a></h3> <div class="nist-teaser__date"> <div class="daterange"><time datetime="2023-11-01T12:00:00Z">November 1, 2023</time> </div> </div> </header> <div class="nist-teaser__content"> <div property="schema:text" class="text-with-summary"> On September 12, 2023, NIST held the first of several listening sessions designed to chart a path towards standardizing critical and emerging technologies, in </div> </div> </div> </article> </div> <div> <article about="/news-events/news/2023/11/nist-researchers-explain-software-finds-inconsistencies-system-behavior" typeof="schema:Article" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20231204110428/https://www.nist.gov/news-events/news/2023/11/nist-researchers-explain-software-finds-inconsistencies-system-behavior" hreflang="en"><img loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2023/11/15/NIST%20Researchers%20Explain%20Software%20that%20Finds%20Inconsistencies%20in%20System%20Behavior%20Design.png?itok=jH-v8Ej2" width="100" height="64" alt="NIST Researchers Explain Software that Finds Inconsistencies in System Behavior Design" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20231204110428/https://www.nist.gov/news-events/news/2023/11/nist-researchers-explain-software-finds-inconsistencies-system-behavior"><span property="schema:name">NIST Researchers Explain Software that Finds Inconsistencies in System Behavior Design</span> </a></h3> <div class="nist-teaser__date"> <div class="daterange"><time datetime="2023-11-01T12:00:00Z">November 1, 2023</time> </div> </div> </header> <div class="nist-teaser__content"> <div property="schema:text" class="text-with-summary"> NIST’s Raphael Barbau and Conrad Bock were invited to present NIST-developed software that helps find inconsistencies in system behavior designs, at the </div> </div> </div> </article> </div> <footer> <div class="link-list"><a href="/web/20231204110428/https://www.nist.gov/news-events/news-updates/org/5636">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">Projects and Programs</div> </h2> <div class="viewsreference"><div class="views-element-container"><div class="js-view-dom-id-f99f5d358fee76315c91159378796501f975e742f888ecf46a3f202800b763c2"> <div> <article about="/programs-projects/5g-beyond" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20231204110428/https://www.nist.gov/programs-projects/5g-beyond" hreflang="en"><img loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/projects/next_generation_5g_research.jpg?itok=kCtfgnOS" width="100" height="49" alt="NIST engineer Kate Remley led development of new 94 gigahertz calibrated signal source and 16-antenna array operating at 83 gigahertz" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20231204110428/https://www.nist.gov/programs-projects/5g-beyond"><span>5G & Beyond</span> </a></h3> <div class="nist-teaser__type"> <div class="nist-badge display-inline-block margin-y-1 nist-badge--blue boolean">Ongoing</div> </div> </header> <div class="nist-teaser__content"> <div class="text-long"> “5G and beyond” refers to future generations of mobile wireless communication systems. The vision for these next-generation systems are to enable groundbreaking </div> </div> </div> </article> </div> <div> <article about="/programs-projects/5g-core-networks-testbed" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20231204110428/https://www.nist.gov/programs-projects/5g-core-networks-testbed" hreflang="en"><img loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2023/11/15/fig1_0.png?itok=q0HsfG3l" width="100" height="56" alt="5G Core Network Testbed Project" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20231204110428/https://www.nist.gov/programs-projects/5g-core-networks-testbed"><span>5G Core Networks Testbed</span> </a></h3> <div class="nist-teaser__type"> <div class="nist-badge display-inline-block margin-y-1 nist-badge--blue boolean">Ongoing</div> </div> </header> <div class="nist-teaser__content"> </div> </div> </article> </div> <div> <article about="/programs-projects/5g6g-core-networks-and-services" class="nist-teaser"> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20231204110428/https://www.nist.gov/programs-projects/5g6g-core-networks-and-services"><span>5G/6G Core Networks and Services</span> </a></h3> <div class="nist-teaser__type"> <div class="nist-badge display-inline-block margin-y-1 nist-badge--blue boolean">Ongoing</div> </div> </header> <div class="nist-teaser__content"> <div class="text-long"> This program aims to advance networking and measurement sciences and promote consensus standards and best practices for the evolution from 5G to 6G , focusing </div> </div> </div> </article> </div> <footer> <div class="link-list"><a href="/web/20231204110428/https://www.nist.gov/laboratories/projects-programs/org/5636">View All Projects/Programs</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-1eda585b55b4f8d1bab81d734c64dc3d8957dd30906a51b901315dd4eaeb43c4"> <div> <article about="/nist-awards/2022-bronze-medal-award-duncan-mcgillivray-adam-wunderlich-keith-forsyth-jack-sklar" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20231204110428/https://www.nist.gov/nist-awards/2022-bronze-medal-award-duncan-mcgillivray-adam-wunderlich-keith-forsyth-jack-sklar" hreflang="en"><img loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2023/01/18/BRONZE_forsyth%2Ckord%2Ckuester%2Cmcgillivary%2Cnelson%2Csanders%2Cwunderlich-comp.jpg?itok=Nmfbt01c" width="100" height="74" alt="2022 Bronze Medal Awardees" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20231204110428/https://www.nist.gov/nist-awards/2022-bronze-medal-award-duncan-mcgillivray-adam-wunderlich-keith-forsyth-jack-sklar"><span>2022 - Bronze Medal Award---Duncan McGillivray, Adam Wunderlich, Keith Forsyth, Jack Sklar, Daniel Kuester, Azizollah Kord, Robert Horansky, Eric Nelson, Frank Sanders</span> </a></h3> </header> <div class="nist-teaser__content"> <div class="string-long">For development of a validated test methodology to measure the impact of newly deployed commercial cellular equipment on DoD Test Range systems.</div> </div> </div> </article> </div> <div> <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/20231204110428/https://www.nist.gov/nist-awards/2022-bronze-medal-award-avi-gopstein-cuong-nguyen-nelson-hastings-david-wollman" hreflang="en"><img loading="lazy" src="/web/20231204110428im_/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" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20231204110428/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 about="/nist-awards/2022-allen-v-astin-measurement-science-award-dazhen-gu-aaron-hagerstrom-benjamin-jamroz" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20231204110428/https://www.nist.gov/nist-awards/2022-allen-v-astin-measurement-science-award-dazhen-gu-aaron-hagerstrom-benjamin-jamroz" hreflang="en"><img loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2023/01/18/ASTIN-gu%2Chagerstrom%2Cjamroz%2Cjargon%2Cstanfield%2Cstoup%2Cwilliams-comp.jpg?itok=S6zz8k1_" width="100" height="99" alt="Allen V Astin Award 2022" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20231204110428/https://www.nist.gov/nist-awards/2022-allen-v-astin-measurement-science-award-dazhen-gu-aaron-hagerstrom-benjamin-jamroz"><span>2022 - Allen V. Astin Measurement Science Award---Dazhen Gu, Aaron Hagerstrom, Benjamin Jamroz, Jeffrey Jargon, Christian Long, Ann F. Monke, Eric Stanfield, Angela Stelson, John Stoup, Dylan Williams</span> </a></h3> </header> <div class="nist-teaser__content"> <div class="string-long">For developing rigorous traceability with correlated uncertainties for microwave power and scattering parameters at 5G/6G communications frequencies.</div> </div> </div> </article> </div> <div> <article about="/nist-awards/2022-colleagues-choice-award-linda-derr" class="nist-teaser"> <div class="nist-teaser__image"> <div class="entity-reference"> <a href="/web/20231204110428/https://www.nist.gov/nist-awards/2022-colleagues-choice-award-linda-derr" hreflang="en"><img loading="lazy" src="/web/20231204110428im_/https://www.nist.gov/sites/default/files/styles/thumbnail/public/images/2022/12/20/Derr.ColleaguesChoice.jpg?itok=YGy70LJW" width="67" height="100" alt="Linda Derr Colleagues Choice" typeof="foaf:Image"/> </a> </div> </div> <div class="nist-teaser__content-wrapper"> <header> <h3 class="nist-teaser__title"><a href="/web/20231204110428/https://www.nist.gov/nist-awards/2022-colleagues-choice-award-linda-derr"><span>2022 - Colleagues' Choice Award---Linda Derr</span> </a></h3> </header> <div class="nist-teaser__content"> <div class="string-long">For innovation in the Boulder Professional Research Experience Program (PREP) enhancing growth, stakeholder communication, and collaborative research.</div> </div> </div> </article> </div> <footer> <div class="link-list"><a href="/web/20231204110428/https://www.nist.gov/awards/org/5636">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"> <h3 class="nist-contact__heading">Director, Communications Technology Lab</h3> <ul class="nist-contact__items"> <li class="nist-contact__item"> <div class="nist-contact__name"> Dereck Orr </div> <div> <a href="https://web.archive.org/web/20231204110428/mailto:dereck.orr@nist.gov">dereck.orr@nist.gov</a> </div> <div> (303) 497-5400 </div> <div> 325 Broadway <br> MS 670.00 <br> Boulder, CO 80305-3337 </div> </li> </ul> </div> </div> </div> </div> </section> </div> <div data-elastic-exclude>  <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/20231204110428/https://www.nist.gov/" title="National Institute of Standards and Technology" rel="home"> <img class="nist-footer__logo-img" src="/web/20231204110428im_/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/20231204110428/tel:301-975-2000">301-975-2000</a> </address> <p> <a href="https://web.archive.org/web/20231204110428/mailto:do-webmaster@nist.gov">Webmaster</a> | <a href="https://web.archive.org/web/20231204110428/https://www.nist.gov/about-nist/contact-us">Contact Us</a> | <a href="https://web.archive.org/web/20231204110428/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/20231204110428/https://twitter.com/NIST"> <span>Twitter</span> </a> <a class="nist-social nist-social--facebook-white" href="https://web.archive.org/web/20231204110428/https://www.facebook.com/NIST"> <span>Facebook</span> </a> <a class="nist-social nist-social--linkedin-white" href="https://web.archive.org/web/20231204110428/https://www.linkedin.com/company/nist"> <span>LinkedIn</span> </a> <a class="nist-social nist-social--instagram-white" href="https://web.archive.org/web/20231204110428/https://www.instagram.com/nist/"> <span>Instagram</span> </a> <a class="nist-social nist-social--youtube-white" href="https://web.archive.org/web/20231204110428/https://www.youtube.com/NIST"> <span>YouTube</span> </a> <a class="nist-social nist-social--giphy-white" href="https://web.archive.org/web/20231204110428/https://giphy.com/nist"> <span>Giphy</span> </a> <a class="nist-social nist-social--rss-white" href="https://web.archive.org/web/20231204110428/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/20231204110428/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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