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<!DOCTYPE html> <html lang="en"> <head><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("https://public.govdelivery.com/accounts/USNIST/subscriber/new?qsp=USNIST_3","20231205073259","https://web.archive.org/","web","/_static/", "1701761579"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" />  <title>National Institute of Standards and Technology (NIST)</title> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type"/> <meta content="width=device-width, initial-scale=1.0, user-scalable=yes" name="viewport"/> <link href="https://web.archive.org/web/20231205073259im_/https://www.nist.gov/favicon.ico" rel="shortcut icon"/> <meta name="csrf-param" content="authenticity_token"/> <meta name="csrf-token" content="dvdfwGX/L9mj97wpFfE6hMpi3NFsiQYWLzsc7VXdD/ArAfj//Ym+HPde1hScGJWavavFA4cZ1vyfg92JVPIBjg=="/> <link rel="stylesheet" media="screen" href="https://web.archive.org/web/20231205073259cs_/https://content.govdelivery.com/assets/subscriber-6fa22a4cc01bd61bfc57e67ad3871548d6adbf1f5c067eb8cdad078eaddf6675.css"/> <link rel="stylesheet" media="screen" href="https://web.archive.org/web/20231205073259cs_/https://public.govdelivery.com/accounts/USNIST/style.css?v=1592839890"/>  <script src="https://web.archive.org/web/20231205073259js_/https://content.govdelivery.com/assets/Subscriber-9e9891ba8fca490924c5e26e1d1e3640f8f903da76a557d11a584aecfb61e50c.js"></script> <script src="https://web.archive.org/web/20231205073259js_/https://content.govdelivery.com/assets/controller_manifests/AccountSubscribers-e2a1816e5c289dcf0078236ff0fa0b3751fdc99afeee8f32c51cf977ecf6accf.js"></script> </head> <body id="sub"> <div id="page_margins"> <main id="page"> <div class="qs_banner"> <a href="https://web.archive.org/web/20231205073259/https://www.nist.gov/" rel="noopener noreferrer" target="_blank"> <img alt="NIST Banner" src="/web/20231205073259im_/https://public.govdelivery.com/system/images/58906/original/NIST_banner-GD-2.png?1479336163"> </a> <style type="text/css"> body#sub #quick_subscribe_new ol.form li:first-child {display:none !important;} body#sub #quick_subscribe_new ol.form li { border-top: none; } body#sub #quick_subscribe_new ol.form li.email_fields {display:block !important;} body#sub #col3>form.edit_subscriber>label, body#sub #col3>form.edit_subscriber>div.input_group {display:none !important;} </style> </div> <div id="col3"> <p class="name"> </p> <form action="/web/20231205073259/https://public.govdelivery.com/accounts/USNIST/subscriber/qualify" accept-charset="UTF-8" method="post"><input name="utf8" type="hidden" value="✓"/><input type="hidden" name="authenticity_token" value="4Iz6fNcH3UeOOlnngatB4AqGghAK4+SJQAEQVcQNxJe9el1DT3FMgtqTM9oIQu7+fU+bwuFzNGPwudExxSLK6Q=="/> <fieldset id="quick_subscribe_new"> <legend> <h1> Email Updates </h1> </legend> <div id="quick_subscribe_new_instructions"> To sign up for updates or to access your subscriber preferences, please enter your contact information below. </div> <ol class="form"> <li> <label for="subscription_type">Subscription Type</label> <div class="input_group"> <select name="subscription_type" id="subscription_type"><option value="email">Email</option> <option value="phone">SMS/Text Message</option></select> </div> </li> <li class="wireless_fields" style="display: none"> <label for="phone"><img class="required" alt="" aria-hidden="true" src="https://web.archive.org/web/20231205073259im_/https://content.govdelivery.com/images/required.gif"/>Wireless Number</label> <div class="input_group"> <select name="country_code_display" id="country_code_display" disabled="disabled" aria-label="Country code"><option value="1 (US)">1 (US)</option> <option value="1">1</option></select> <input type="hidden" name="country_code" id="country_code" value="1" title="Country code"/> <input type="tel" name="phone" id="phone" value="" class="medium wireless_text_field" title="Provide your full phone number without country code or characters such as a dash or space. e.g 5555550123" oninvalid="setCustomValidity('Provide your full phone number without country code or characters such as a dash or space. e.g 5555550123')" pattern="[0-9]{10}" oninput="if (validity.patternMismatch) { setCustomValidity('Provide your full phone number without country code or characters such as a dash or space. e.g 5555550123'); 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