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Web Content Accessibility Guidelines - Wikipedia
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id="siteNotice"></div> </div> <div class="pre-content heading-holder"> <div class="page-heading"> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Web Content Accessibility Guidelines</span></h1> <div class="tagline"></div> </div> <ul id="p-associated-pages" class="minerva__tab-container"> <li class="minerva__tab selected"> <a class="minerva__tab-text" href="/wiki/Web_Content_Accessibility_Guidelines" rel="" data-event-name="tabs.subject">Article</a> </li> <li class="minerva__tab "> <a class="minerva__tab-text" href="/wiki/Talk:Web_Content_Accessibility_Guidelines" rel="discussion" data-event-name="tabs.talk">Talk</a> </li> </ul> <nav class="page-actions-menu"> <ul id="p-views" class="page-actions-menu__list"> <li id="language-selector" class="page-actions-menu__list-item"> <a role="button" href="#p-lang" data-mw="interface" data-event-name="menu.languages" title="Language" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet language-selector"> <span class="minerva-icon minerva-icon--language"></span> <span>Language</span> </a> </li> <li id="page-actions-watch" class="page-actions-menu__list-item"> <a role="button" id="ca-watch" href="/w/index.php?title=Special:UserLogin&returnto=Web+Content+Accessibility+Guidelines" data-event-name="menu.watch" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet menu__item--page-actions-watch"> <span class="minerva-icon minerva-icon--star"></span> <span>Watch</span> </a> </li> <li id="page-actions-edit" class="page-actions-menu__list-item"> <a role="button" id="ca-edit" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit" data-event-name="menu.edit" data-mw="interface" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet edit-page menu__item--page-actions-edit"> <span class="minerva-icon minerva-icon--edit"></span> <span>Edit</span> </a> </li> </ul> </nav> <!-- version 1.0.2 (change every time you update a partial) --> <div id="mw-content-subtitle"></div> </div> <div id="bodyContent" class="content"> <div id="mw-content-text" class="mw-body-content"><script>function mfTempOpenSection(id){var block=document.getElementById("mf-section-"+id);block.className+=" open-block";block.previousSibling.className+=" open-block";}</script><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><section class="mf-section-0" id="mf-section-0"> <p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><p>The <b>Web Content Accessibility Guidelines</b> (<b>WCAG</b>) are part of a series of <a href="/wiki/Web_accessibility" title="Web accessibility">web accessibility</a> guidelines published by the <a href="/wiki/Web_Accessibility_Initiative" title="Web Accessibility Initiative">Web Accessibility Initiative</a> (WAI) of the <a href="/wiki/World_Wide_Web_Consortium" title="World Wide Web Consortium">World Wide Web Consortium</a> (W3C), the main international standards organization for the Internet. They are a set of recommendations for making Web content more accessible, primarily for people with <a href="/wiki/Disabilities" class="mw-redirect" title="Disabilities">disabilities</a>—but also for all <a href="/wiki/User_agent" title="User agent">user agents</a>, including highly limited devices, such as mobile phones. WCAG 2.0 was published in December 2008 and became an <a href="/wiki/International_Organization_for_Standardization" title="International Organization for Standardization">ISO</a> standard, ISO/IEC 40500:2012 in October 2012.<sup id="cite_ref-iso-standard_3-1" class="reference"><a href="#cite_note-iso-standard-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> WCAG 2.2 became a W3C Recommendation on 5 October 2023.<sup id="cite_ref-wcag-22_1-2" class="reference"><a href="#cite_note-wcag-22-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><table class="infobox hproduct"><caption class="infobox-title fn">WCAG</caption><tbody><tr><td colspan="2" class="infobox-subheader">Web Content Accessibility Guidelines</td></tr><tr><td colspan="2" class="infobox-image"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:W3C%C2%AE_Icon.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ed/W3C%C2%AE_Icon.svg/220px-W3C%C2%AE_Icon.svg.png" decoding="async" width="220" height="150" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ed/W3C%C2%AE_Icon.svg/330px-W3C%C2%AE_Icon.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ed/W3C%C2%AE_Icon.svg/440px-W3C%C2%AE_Icon.svg.png 2x" data-file-width="210" data-file-height="143"></a></span><div class="infobox-caption"><a href="/wiki/World_Wide_Web_Consortium" title="World Wide Web Consortium">World Wide Web Consortium</a> (W3C) logo</div></td></tr><tr><th scope="row" class="infobox-label">Abbreviation</th><td class="infobox-data">WCAG</td></tr><tr><th scope="row" class="infobox-label">Status</th><td class="infobox-data"><a href="/wiki/World_Wide_Web_Consortium#W3C_recommendation_(REC)" title="World Wide Web Consortium">W3C Recommendation</a></td></tr><tr><th scope="row" class="infobox-label">Year started</th><td class="infobox-data">January 1995<span style="display:none"> (<span class="bday dtstart published updated itvstart">1995-01</span>)</span></td></tr><tr><th scope="row" class="infobox-label">First published</th><td class="infobox-data">9 May 1999<span style="display:none"> (<span class="bday dtstart published updated itvstart">1999-05-09</span>)</span></td></tr><tr><th scope="row" class="infobox-label">Latest version</th><td class="infobox-data">2.2<br>October 5, 2023<span class="noprint">; 13 months ago</span><span style="display:none"> (<span class="bday dtstart published updated">2023-10-05</span>)</span><sup id="cite_ref-wcag-22_1-0" class="reference"><a href="#cite_note-wcag-22-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Preview version</th><td class="infobox-data">3.0<br>July 24, 2023<span class="noprint">; 15 months ago</span><span style="display:none"> (<span class="bday dtstart published updated">2023-07-24</span>)</span><sup id="cite_ref-wcag-30_2-0" class="reference"><a href="#cite_note-wcag-30-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Organization</th><td class="infobox-data"><a href="/wiki/World_Wide_Web_Consortium" title="World Wide Web Consortium"><abbr title="World Wide Web Consortium">W3C</abbr></a>, <a href="/wiki/International_Organization_for_Standardization" title="International Organization for Standardization"><abbr title="International Organization for Standardization">ISO</abbr></a>, <a href="/wiki/International_Electrotechnical_Commission" title="International Electrotechnical Commission"><abbr title="International Electrotechnical Commission">IEC</abbr></a><sup id="cite_ref-iso-standard_3-0" class="reference"><a href="#cite_note-iso-standard-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Committee</th><td class="infobox-data">Accessibility Guidelines Working Group</td></tr><tr><th scope="row" class="infobox-label">Editors</th><td class="infobox-data"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"> <ul><li>Andrew Kirkpatrick</li> <li>Joshue O Connor</li> <li>Alastair Campbell</li> <li>Ben Caldwell</li> <li>Michael Cooper</li> <li>Loretta Guarino Reid</li> <li>Gregg Vanderheiden</li> <li>Wendy Chisholm</li> <li>John Slatin</li> <li>Jason White</li> <li>Rachael Bradley Montgomery</li> <li>Jeanne Spellman</li> <li>Shawn Lauriat</li></ul> </div><sup id="cite_ref-wcag-22_1-1" class="reference"><a href="#cite_note-wcag-22-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Domain</th><td class="infobox-data"><a href="/wiki/Web_accessibility" title="Web accessibility">Web accessibility</a></td></tr><tr><th scope="row" class="infobox-label">Copyright</th><td class="infobox-data">© 2020–2023 W3C® (MIT, ERCIM, Keio, Beihang).</td></tr><tr><th scope="row" class="infobox-label">Website</th><td class="infobox-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"> <ul><li><a href="/wiki/W3C" class="mw-redirect" title="W3C">W3C</a>: <span class="url"><a rel="nofollow" class="external text" href="https://www.w3.org/TR/WCAG22/">www<wbr></wbr>.w3<wbr></wbr>.org<wbr></wbr>/TR<wbr></wbr>/WCAG22<wbr></wbr>/</a></span></li> <li><a href="/wiki/ISO" class="mw-redirect" title="ISO">ISO</a> / <a href="/wiki/International_Electrotechnical_Commission" title="International Electrotechnical Commission">IEC</a>: <span class="url"><a rel="nofollow" class="external text" href="https://www.iso.org/standard/58625.html">www<wbr></wbr>.iso<wbr></wbr>.org<wbr></wbr>/standard<wbr></wbr>/58625<wbr></wbr>.html</a></span></li></ul> </div></td></tr></tbody></table> <div id="toc" class="toc" role="navigation" aria-labelledby="mw-toc-heading"><input type="checkbox" role="button" id="toctogglecheckbox" class="toctogglecheckbox" style="display:none"><div class="toctitle" lang="en" dir="ltr"><h2 id="mw-toc-heading">Contents</h2><span class="toctogglespan"><label class="toctogglelabel" for="toctogglecheckbox"></label></span></div> <ul> <li class="toclevel-1 tocsection-1"><a href="#History"><span class="tocnumber">1</span> <span class="toctext">History</span></a> <ul> <li class="toclevel-2 tocsection-2"><a href="#Earlier_guidelines_(1995%E2%80%931998)"><span class="tocnumber">1.1</span> <span class="toctext">Earlier guidelines (1995–1998)</span></a></li> <li class="toclevel-2 tocsection-3"><a href="#Version_1_(1999%E2%80%932000)"><span class="tocnumber">1.2</span> <span class="toctext">Version 1 (1999–2000)</span></a></li> <li class="toclevel-2 tocsection-4"><a href="#Version_2_(2001%E2%80%93present)"><span class="tocnumber">1.3</span> <span class="toctext">Version 2 (2001–present)</span></a></li> <li class="toclevel-2 tocsection-5"><a href="#Version_3_(under_development)"><span class="tocnumber">1.4</span> <span class="toctext">Version 3 (under development)</span></a></li> </ul> </li> <li class="toclevel-1 tocsection-6"><a href="#Versions"><span class="tocnumber">2</span> <span class="toctext">Versions</span></a> <ul> <li class="toclevel-2 tocsection-7"><a href="#Version_1"><span class="tocnumber">2.1</span> <span class="toctext">Version 1</span></a></li> <li class="toclevel-2 tocsection-8"><a href="#Version_2"><span class="tocnumber">2.2</span> <span class="toctext">Version 2</span></a></li> </ul> </li> <li class="toclevel-1 tocsection-9"><a href="#WCAG_referenced_by_law"><span class="tocnumber">3</span> <span class="toctext">WCAG referenced by law</span></a> <ul> <li class="toclevel-2 tocsection-10"><a href="#United_States"><span class="tocnumber">3.1</span> <span class="toctext">United States</span></a></li> <li class="toclevel-2 tocsection-11"><a href="#European_Union"><span class="tocnumber">3.2</span> <span class="toctext">European Union</span></a></li> <li class="toclevel-2 tocsection-12"><a href="#United_Kingdom"><span class="tocnumber">3.3</span> <span class="toctext">United Kingdom</span></a></li> <li class="toclevel-2 tocsection-13"><a href="#Canada"><span class="tocnumber">3.4</span> <span class="toctext">Canada</span></a></li> <li class="toclevel-2 tocsection-14"><a href="#Australia"><span class="tocnumber">3.5</span> <span class="toctext">Australia</span></a></li> <li class="toclevel-2 tocsection-15"><a href="#Israel"><span class="tocnumber">3.6</span> <span class="toctext">Israel</span></a></li> </ul> </li> <li class="toclevel-1 tocsection-16"><a href="#References"><span class="tocnumber">4</span> <span class="toctext">References</span></a></li> <li class="toclevel-1 tocsection-17"><a href="#External_links"><span class="tocnumber">5</span> <span class="toctext">External links</span></a></li> </ul> </div> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(1)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="History">History</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=1" title="Edit section: History" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-1 collapsible-block" id="mf-section-1"> <div class="mw-heading mw-heading3"><h3 id="Earlier_guidelines_(1995–1998)"><span id="Earlier_guidelines_.281995.E2.80.931998.29"></span>Earlier guidelines (1995–1998)</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=2" title="Edit section: Earlier guidelines (1995–1998)" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>The first web accessibility guideline was compiled by <a href="/w/index.php?title=Gregg_Vanderheiden&action=edit&redlink=1" class="new" title="Gregg Vanderheiden (page does not exist)">Gregg Vanderheiden</a> and released in January 1995, just after the 1994 Second International Conference on the World-Wide Web (WWW II) in Chicago (where <a href="/wiki/Tim_Berners-Lee" title="Tim Berners-Lee">Tim Berners-Lee</a> first mentioned disability access in a keynote speech after seeing a pre-conference workshop on accessibility led by <a href="/w/index.php?title=Mike_Paciello&action=edit&redlink=1" class="new" title="Mike Paciello (page does not exist)">Mike Paciello</a>).<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>Over 38 different Web access guidelines followed from various authors and organizations over the next few years.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> These were brought together in the <i>Unified Web Site Accessibility Guidelines</i> compiled at the <a href="/wiki/University_of_Wisconsin%E2%80%93Madison" title="University of Wisconsin–Madison">University of Wisconsin–Madison</a>.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Version 8 of the <i>Unified Web Site Accessibility Guidelines</i>, published in 1998, served as the starting point for the W3C's WCAG 1.0.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Version_1_(1999–2000)"><span id="Version_1_.281999.E2.80.932000.29"></span>Version 1 (1999–2000)</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=3" title="Edit section: Version 1 (1999–2000)" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>The WCAG 1.0 were published and became a <a href="/wiki/W3C_recommendation" class="mw-redirect" title="W3C recommendation">W3C recommendation</a> on 5 May 1999. In February 2008, The WCAG Samurai, a group of developers independent of the W3C, and led by <a href="/w/index.php?title=Joe_Clark_(writer)&action=edit&redlink=1" class="new" title="Joe Clark (writer) (page does not exist)">Joe Clark</a>, published corrections for, and extensions to, the WCAG 1.0.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Version_2_(2001–present)"><span id="Version_2_.282001.E2.80.93present.29"></span>Version 2 (2001–present)</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=4" title="Edit section: Version 2 (2001–present)" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>The first concept proposal of WCAG 2.0 was published on 25 January 2001. In the following years new versions were published intended to solicit feedback from accessibility experts and members of the disability community. On 27 April 2006 a "Last Call Working Draft" was published.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> Due to the many amendments that were necessary, WCAG 2.0 was published again as a concept proposal on 17 May 2007, followed by a second "Last Call Working Draft" on 11 December 2007.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> In April 2008 the guidelines became a "Candidate Recommendation".<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> On 3 November 2008 the guidelines became a "Proposed Recommendation". WCAG 2.0 was published as a W3C Recommendation on 11 December 2008.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> In October 2012, WCAG 2.0 were accepted by the <a href="/wiki/International_Organization_for_Standardization" title="International Organization for Standardization">International Organization for Standardization</a> as an ISO International Standard, ISO/IEC 40500:2012.<sup id="cite_ref-W3C-ISO_15-0" class="reference"><a href="#cite_note-W3C-ISO-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-W3C-announce_16-0" class="reference"><a href="#cite_note-W3C-announce-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-ISO_17-0" class="reference"><a href="#cite_note-ISO-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-iso-standard_3-2" class="reference"><a href="#cite_note-iso-standard-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> In early 2014, WCAG 2.0's Level A and Level AA success criteria were incorporated as references in clause 9.2 ("Web content requirements") of the European standard <a href="/wiki/EN_301_549" title="EN 301 549">EN 301 549</a> published by <a href="/wiki/ETSI" class="mw-redirect" title="ETSI">ETSI</a>.<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> EN 301 549 was produced in response to a mandate that the European Commission gave to the three official European standardisation bodies (<a href="/wiki/European_Committee_for_Standardization" title="European Committee for Standardization">CEN</a>, <a href="/wiki/European_Committee_for_Electrotechnical_Standardization" title="European Committee for Electrotechnical Standardization">CENELEC</a> and ETSI) and is the first European standard for ICT products and services.<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> </p><p>WCAG 2.2 became a W3C Recommendation on 5 October 2023.<sup id="cite_ref-wcag-22_1-3" class="reference"><a href="#cite_note-wcag-22-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Nine new criteria make their definitive debut in this new version of the WCAG standard. New sections have also been introduced that detail aspects of the specification which may impact privacy and security. </p> <div class="mw-heading mw-heading3"><h3 id="Version_3_(under_development)"><span id="Version_3_.28under_development.29"></span>Version 3 (under development)</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=5" title="Edit section: Version 3 (under development)" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>In early 2021, the Accessibility Guidelines Working Group presented the first public working draft (FPWD) of the future WCAG 3.0, intended to provide a range of recommendations for making web content more accessible. The <a rel="nofollow" class="external text" href="https://www.w3.org/TR/wcag-3.0/">WCAG 3.0 working draft</a> was last updated in May 2024. No part of WCAG 3.0 is an official recommendation at this time. WCAG 3.0 is a draft undergoing significant development efforts, and the expected release date as an official recommendation is not defined. </p> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(2)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="Versions">Versions</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=6" title="Edit section: Versions" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-2 collapsible-block" id="mf-section-2"> <div class="mw-heading mw-heading3"><h3 id="Version_1">Version 1</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=7" title="Edit section: Version 1" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>WCAG 1.0 consist of 14 guidelines—each of which describes a general principle of accessible design. Each guideline covers a basic theme of web accessibility and is associated with one or more checkpoints that describes how to apply that guideline to particular webpage features. </p> <ul><li>Guideline 1: Provide equivalent alternatives to auditory and visual content</li> <li>Guideline 2: Do not rely on colour alone</li> <li>Guideline 3: Use markup and style sheets, and do so properly</li> <li>Guideline 4: Clarify natural language usage</li> <li>Guideline 5: Create tables that transform gracefully</li> <li>Guideline 6: Ensure that pages featuring new technologies transform gracefully</li> <li>Guideline 7: Ensure user control of time sensitive content changes</li> <li>Guideline 8: Ensure direct accessibility of embedded user interfaces</li> <li>Guideline 9: Design for device independence</li> <li>Guideline 10: User interim solutions</li> <li>Guideline 11: Use <a href="/wiki/W3C" class="mw-redirect" title="W3C">W3C</a> technologies and guidelines</li> <li>Guideline 12: Provide context and orientation information</li> <li>Guideline 13: Provide clear navigation mechanisms</li> <li>Guideline 14: Ensure that documents are clear and simple</li></ul> <p>Each of the in total 65 WCAG 1.0 checkpoints has an assigned <i>priority level</i> based on the checkpoint's impact on accessibility: </p> <ul><li>Priority 1: Web developers <b>must</b> satisfy these requirements, otherwise it will be impossible for one or more groups to access the Web content. Conformance to this level is described as <i>A.</i></li> <li><span class="anchor" id="WCAG_1.0_AA"></span>Priority 2: Web developers <b>should</b> satisfy these requirements, otherwise some groups will find it difficult to access the Web content. Conformance to this level is described as <i>AA</i> or <i>Double-A.</i></li> <li><span class="anchor" id="WCAG_1.0_AAA"></span>Priority 3: Web developers <b>may</b> satisfy these requirements to make it easier for some groups to access the Web content. Conformance to this level is described as <i>AAA</i> or <i>Triple-A.</i></li></ul> <div class="mw-heading mw-heading3"><h3 id="Version_2">Version 2</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=8" title="Edit section: Version 2" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>WCAG 2.0 consist of twelve guidelines organized under four principles (websites must be <i>perceivable</i>, <i>operable</i>, <i>understandable</i>, and <i>robust</i>). Each guideline has testable success criteria (61 in all).<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> The W3C's Techniques for WCAG 2.0<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> is a list of techniques that help authors meet the guidelines and success criteria. The techniques are periodically updated whereas the principles, guidelines and success criteria are stable and do not change.<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> WCAG 2.0 uses the same three <i>levels of conformance</i> (<i>A, AA, AAA</i>) as WCAG 1.0, but has redefined them. The WCAG working group maintains an extensive list of web accessibility techniques and common failure cases for WCAG 2.0.<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> </p><p>WCAG 2.1 is backwards-compatible with WCAG 2.0, which it extends with a further 17 success criteria. </p><p>WCAG 2.2 is backwards-compatible with WCAG 2.1 extending it a further nine success criteria and with WCAG 2.0 extending it a further 26 success criteria (including the 17 success criteria introduced by WCAG 2.1). Additionally, WCAG 2.2 has deprecated and removed the 4.1.1 success criterion.<sup id="cite_ref-wcag-22-411_25-0" class="reference"><a href="#cite_note-wcag-22-411-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> </p> <table class="wikitable sortable mw-collapsible plainlinks"> <caption>WCAG 2 Guidelines </caption> <tbody><tr> <th scope="col">Principles </th> <th scope="col">Guidelines </th> <th scope="col">Success Criteria </th> <th scope="col">Conformance Level </th> <th scope="col">Revision </th></tr> <tr> <th rowspan="29" scope="row">1: Perceivable </th> <td>1.1 Text Alternatives </td> <td>1.1.1 Non-text Content </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td rowspan="9">1.2 Time-based Media </td> <td>1.2.1 Audio-only and Video-only (Prerecorded) </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.2.2 Captions (Prerecorded) </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.2.3 Audio Description or Media Alternative (Prerecorded) </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.2.4 Captions (Live) </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.2.5 Audio Description (Prerecorded) </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.2.6 Sign Language (Prerecorded) </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.2.7 Extended Audio Description (Prerecorded) </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.2.8 Media Alternative (Prerecorded) </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.2.9 Audio-only (Live) </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td rowspan="6">1.3 Adaptable </td> <td>1.3.1 Info and Relationships </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.3.2 Meaningful Sequence </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.3.3 Sensory Characteristics </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.3.4 Orientation </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.1 </td></tr> <tr> <td>1.3.5 Identify Input Purpose </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.1 </td></tr> <tr> <td>1.3.6 Identify Purpose </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.1 </td></tr> <tr> <td rowspan="13">1.4 Distinguishable </td> <td>1.4.1 Use of Color </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.4.2 Audio Control </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.4.3 Contrast (Minimum) </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.4.4 Resize text </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.4.5 Images of Text </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.4.6 Contrast (Enhanced) </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.4.7 Low or No Background Audio </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.4.8 Visual Presentation </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.4.9 Images of Text (No Exception) </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>1.4.10 Reflow </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.1 </td></tr> <tr> <td>1.4.11 Non-Text Contrast </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.1 </td></tr> <tr> <td>1.4.12 Text Spacing </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.1 </td></tr> <tr> <td>1.4.13 Content on Hover or Focus </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.1 </td></tr> <tr> <th rowspan="34" scope="row">2: Operable </th> <td rowspan="4">2.1 Keyboard Accessible </td> <td>2.1.1 Keyboard </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.1.2 No Keyboard Trap </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.1.3 Keyboard (No Exception) </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.1.4 Character Key Shortcuts </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.1 </td></tr> <tr> <td rowspan="6">2.2 Enough Time </td> <td>2.2.1 Timing Adjustable </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.2.2 Pause, Stop, Hide </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.2.3 No Timing </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.2.4 Interruptions </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.2.5 Re-authenticating </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.2.6 Timeouts </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.1 </td></tr> <tr> <td rowspan="3">2.3 Seizures </td> <td>2.3.1 Three Flashes or Below Threshold </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.3.2 Three Flashes </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.3.3 Animation from Interactions </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.1 </td></tr> <tr> <td rowspan="13">2.4 Navigable </td> <td>2.4.1 Bypass Blocks </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.4.2 Page Titled </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.4.3 Focus Order </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.4.4 Link Purpose (In Context) </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.4.5 Multiple Ways </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.4.6 Headings and Labels </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.4.7 Focus Visible </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.4.8 Location </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.4.9 Link Purpose (Link Only) </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.4.10 Section Headings </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>2.4.11 Focus Not Obscured (Minimum) </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.2 </td></tr> <tr> <td>2.4.12 Focus Not Obscured (Enhanced) </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.2 </td></tr> <tr> <td>2.4.13 Focus Appearance </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.2 </td></tr> <tr> <td rowspan="8">2.5 Input Modalities </td> <td>2.5.1 Pointer Gestures </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.1 </td></tr> <tr> <td>2.5.2 Pointer Cancellation </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.1 </td></tr> <tr> <td>2.5.3 Label in Name </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.1 </td></tr> <tr> <td>2.5.4 Motion Actuation </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.1 </td></tr> <tr> <td>2.5.5 Target Size </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.1 </td></tr> <tr> <td>2.5.6 Concurrent Input Mechanisms </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.1 </td></tr> <tr> <td>2.5.7 Dragging Movements </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.2 </td></tr> <tr> <td>2.5.8 Target Size (Minimum) </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.2 </td></tr> <tr> <th rowspan="21" scope="row">3: Understandable </th> <td rowspan="6">3.1 Readable </td> <td>3.1.1 Language of Page </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>3.1.2 Language of Parts </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>3.1.3 Unusual Words </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>3.1.4 Abbreviations </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>3.1.5 Reading Level </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>3.1.6 Pronunciation </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td rowspan="6">3.2 Predictable </td> <td>3.2.1 On Focus </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>3.2.2 On Input </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>3.2.3 Consistent Navigation </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>3.2.4 Consistent Identification </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>3.2.5 Change on Request </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>3.2.6 Consistent Help </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.2 </td></tr> <tr> <td rowspan="9">3.3 Input Assistance </td> <td>3.3.1 Error Identification </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>3.3.2 Labels or Instructions </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>3.3.3 Error Suggestion </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>3.3.4 Error Prevention (Legal, Financial, Data) </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>3.3.5 Help </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>3.3.6 Error Prevention (All) </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td>3.3.7 Redundant Entry </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.2 </td></tr> <tr> <td>3.3.8 Accessible Authentication (Minimum) </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.2 </td></tr> <tr> <td>3.3.9 Accessible Authentication (Enhanced) </td> <td style="background: #FFD700; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AAA </td> <td style="text-align: center;">2.2 </td></tr> <tr> <th rowspan="3" scope="row">4: Robust </th> <td rowspan="3">4.1 Compatible </td> <td><s>4.1.1 Parsing</s> (deprecated by WCAG 2.2<sup id="cite_ref-wcag-22-411_25-1" class="reference"><a href="#cite_note-wcag-22-411-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup>) </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme"><s>A</s> </td> <td style="text-align: center;"><s>2.0</s> </td></tr> <tr> <td><a rel="nofollow" class="external text" href="https://www.w3.org/TR/WCAG22/#name-role-value">4.1.2 Name, Role, Value</a> </td> <td style="background: #E2B740; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">A </td> <td style="text-align: center;">2.0 </td></tr> <tr> <td><a rel="nofollow" class="external text" href="https://www.w3.org/TR/WCAG22/#status-messages">4.1.3 Status Messages</a> </td> <td style="background: #C0C0C0; color: #000; vertical-align: middle; text-align: center;" class="yes table-yes2 notheme">AA </td> <td style="text-align: center;">2.1 </td></tr></tbody></table> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(3)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="WCAG_referenced_by_law">WCAG referenced by law</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=9" title="Edit section: WCAG referenced by law" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-3 collapsible-block" id="mf-section-3"> <p>This section only refers to specific instances where WCAG, or a closely related derivative thereof, is specifically codified into law. There are many laws relating to accessibility in general and which may apply to websites, though they do not necessarily refer to WCAG. It is nevertheless considered prudent to follow WCAG guidelines to help protect against potential lawsuits relating to accessibility.<sup id="cite_ref-outlaw_26-0" class="reference"><a href="#cite_note-outlaw-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> </p><p>Some jurisdictions are moving to build legislation around the latest recommended release of the Web Content Accessibility Guidelines by the World Wide Web Consortium's Web Accessibility Initiative. This ensures that the policies remain evergreen. </p> <div class="mw-heading mw-heading3"><h3 id="United_States">United States</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=10" title="Edit section: United States" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>In 2013, the <a href="/wiki/US_Department_of_Transportation" class="mw-redirect" title="US Department of Transportation">US Department of Transportation</a> amended the <a href="/wiki/Air_Carrier_Access_Act" title="Air Carrier Access Act">Air Carrier Access Act</a> (ACAA) to require Airlines make their websites accessible, requiring conformance to WCAG 2.0, meeting Level AA Success Criteria.<sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </p><p>In January 2017, the <a href="/wiki/US_Access_Board" class="mw-redirect" title="US Access Board">US Access Board</a> approved a final rule to update <a href="/wiki/Section_508_Amendment_to_the_Rehabilitation_Act_of_1973" title="Section 508 Amendment to the Rehabilitation Act of 1973">Section 508 of the Rehabilitation Act of 1973</a>. The new rule adopts seventeen WCAG 2.0 success criteria, but 22 of the 38 existing A-level and AA-level criteria were already covered by existing Section 508 guidelines. The rule requires adherence to the new standards twelve months from its date of publication in the federal register.<sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup> </p><p>In December, 2021 the 11th circuit court vacated a sometimes-cited case from 2017, which had referred to the WCAG guidelines as "industry standard". The 11th circuit court's ruling rendered the 2017 case moot.<sup id="cite_ref-30" class="reference"><a href="#cite_note-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> As such, the case is no longer citable as caselaw. On March 2, 2022, the 11th circuit court refused to rehear the case. </p><p>On April 24, 2024, the Federal Register published the Department of Justice’s (DOJ) final rule updating its regulations for Title II of the Americans with Disabilities Act (ADA). The final rule states that the Web Content Accessibility Guidelines (WCAG) Version 2.1, Level AA is the technical standard for state and local governments’ web content and mobile apps.<sup id="cite_ref-31" class="reference"><a href="#cite_note-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="European_Union">European Union</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=11" title="Edit section: European Union" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p><a href="/wiki/Web_Accessibility_Directive" title="Web Accessibility Directive">Directive 2016/2102</a><sup id="cite_ref-directive-2016-2102_32-0" class="reference"><a href="#cite_note-directive-2016-2102-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> requires websites and mobile applications of public sector (i.e. government) bodies to conform to WCAG 2.1 Level AA.<sup id="cite_ref-33" class="reference"><a href="#cite_note-33"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-cid-2018-2048_34-0" class="reference"><a href="#cite_note-cid-2018-2048-34"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup> As of June 2021, the directive covers websites and mobile apps.<sup id="cite_ref-35" class="reference"><a href="#cite_note-35"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup> The <a href="/wiki/European_Parliament" title="European Parliament">European Parliament</a> approved the directive in October 2016,<sup id="cite_ref-directive-2016-2102_32-1" class="reference"><a href="#cite_note-directive-2016-2102-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> the <a href="/wiki/European_Commission" title="European Commission">European Commission</a> updated the WCAG reference from 2.0 to 2.1 in December 2018.<sup id="cite_ref-cid-2018-2048_34-1" class="reference"><a href="#cite_note-cid-2018-2048-34"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup> </p><p>The <a href="/wiki/European_Accessibility_Act" title="European Accessibility Act">European Accessibility Act</a> (EAA) will become legally applicable in EU member states on 28 June 2025. The EAA will require websites, apps, ebooks, ecommerce platforms, PDFs and others to conform to WCAG 2.1 AA criteria within the EU. </p> <div class="mw-heading mw-heading3"><h3 id="United_Kingdom">United Kingdom</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=12" title="Edit section: United Kingdom" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>In September 2018, website and mobile app accessibility regulations for the public sector came into force, titled the <i>Public Sector Bodies (Websites and Mobile Applications) Accessibility Regulations 2018</i>, which currently applies the WCAG 2.1 AA level to websites operated by the "public sector", which means government agencies or organizations funded by the government, with some exclusions. The UK government published <i>Understanding accessibility requirements for public sector bodies</i><sup id="cite_ref-36" class="reference"><a href="#cite_note-36"><span class="cite-bracket">[</span>36<span class="cite-bracket">]</span></a></sup> to guide compliance. </p><p>The UK government is yet to announce if it will confirm the European Accessibility Act (EAA) into local law, but companies in the UK and outside of the EU will need to comply with EAA if they sell products or services in any EU member state.<sup id="cite_ref-37" class="reference"><a href="#cite_note-37"><span class="cite-bracket">[</span>37<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Canada">Canada</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=13" title="Edit section: Canada" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>Regulations under the <a href="/wiki/Accessibility_for_Ontarians_with_Disabilities_Act,_2005" title="Accessibility for Ontarians with Disabilities Act, 2005">Accessibility for Ontarians with Disabilities Act, 2005</a> require that public web content of certain Ontario organizations complies with WCAG 2.0 Level AA. </p><p>The 2010/2012 Jodhan decision<sup id="cite_ref-38" class="reference"><a href="#cite_note-38"><span class="cite-bracket">[</span>38<span class="cite-bracket">]</span></a></sup> caused the Canadian federal government to require all online web pages, documents and videos available externally and internally to meet the accessibility requirements of WCAG 2.0.<sup id="cite_ref-39" class="reference"><a href="#cite_note-39"><span class="cite-bracket">[</span>39<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Australia">Australia</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=14" title="Edit section: Australia" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>The Australian government has also mandated via the <a href="/wiki/Disability_Discrimination_Act_1992" title="Disability Discrimination Act 1992">Disability Discrimination Act 1992</a> that all Australian government websites meet the WCAG 2.0 level A accessibility requirements.<sup id="cite_ref-40" class="reference"><a href="#cite_note-40"><span class="cite-bracket">[</span>40<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Israel">Israel</h3><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=15" title="Edit section: Israel" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div> <p>The Israeli Ministry of Justice published regulations in early 2014, requiring Internet websites to comply with Israeli Standard 5568, which is based on the W3C Web Content Accessibility Guidelines 2.0. </p><p>The main differences between the Israeli standard and the W3C standard concern the requirements to provide captions and texts for audio and video media. The Israeli standards are somewhat more lenient, reflecting the current technical difficulties in providing such captions and texts in Hebrew.<sup id="cite_ref-41" class="reference"><a href="#cite_note-41"><span class="cite-bracket">[</span>41<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-42" class="reference"><a href="#cite_note-42"><span class="cite-bracket">[</span>42<span class="cite-bracket">]</span></a></sup> </p> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(4)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="References">References</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=16" title="Edit section: References" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-4 collapsible-block" id="mf-section-4"> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-wcag-22-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-wcag-22_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-wcag-22_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-wcag-22_1-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-wcag-22_1-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFCampbellAdamsMontgomeryCooper2023" class="citation web cs1">Campbell, Alastair; Adams, Chuck; Montgomery, Rachel Bradley; Cooper, Michael; Kirkpatrick, Andrew, eds. (5 October 2023). <a rel="nofollow" class="external text" href="https://www.w3.org/TR/WCAG22/">"Web Content Accessibility Guidelines (WCAG) 2.2"</a>. 2.2. W3C. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20231005133303/https://www.w3.org/TR/WCAG22/">Archived</a> from the original on 5 October 2023<span class="reference-accessdate">. Retrieved <span class="nowrap">5 October</span> 2023</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Web+Content+Accessibility+Guidelines+%28WCAG%29+2.2&rft.series=2.2&rft.pub=W3C&rft.date=2023-10-05&rft_id=https%3A%2F%2Fwww.w3.org%2FTR%2FWCAG22%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+Content+Accessibility+Guidelines" class="Z3988"></span></span> </li> <li id="cite_note-wcag-30-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-wcag-30_2-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSpellmanMontgomeryCooperLauriat2023" class="citation web cs1">Spellman, Jeanne; Montgomery, Rachael Bradley; Cooper, Michael; Lauriat, Shawn; Adams, Chuck; Campbell, Alastair, eds. 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Retrieved <span class="nowrap">22 September</span> 2012</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Unified+Web+Site+Accessibility+Guidelines&rft.pub=Trace+Center%2C+University+of+Wisconsin%E2%80%93Madison&rft.date=1998-01-20&rft_id=http%3A%2F%2Fwww.w3.org%2FWAI%2FGL%2Fcentral.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+Content+Accessibility+Guidelines" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20130113063317/http://www.wcagsamurai.org">"Home Page"</a>. <i>WCAG Samurai</i>. 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Archived from <a rel="nofollow" class="external text" href="http://israeltechnologylaw.wordpress.com/2014/03/05/website-accessibility-requirements/">the original</a> on 28 September 2014<span class="reference-accessdate">. Retrieved <span class="nowrap">22 June</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Israel+Technology+Law+Blog&rft.atitle=Website+Accessibility+Requirements&rft_id=http%3A%2F%2Fisraeltechnologylaw.wordpress.com%2F2014%2F03%2F05%2Fwebsite-accessibility-requirements%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AWeb+Content+Accessibility+Guidelines" class="Z3988"></span></span> </li> </ol></div> </section><div class="mw-heading mw-heading2 section-heading" onclick="mfTempOpenSection(5)"><span class="indicator mf-icon mf-icon-expand mf-icon--small"></span><h2 id="External_links">External links</h2><span class="mw-editsection"> <a role="button" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit&section=17" title="Edit section: External links" class="cdx-button cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--icon-only cdx-button--weight-quiet "> <span class="minerva-icon minerva-icon--edit"></span> <span>edit</span> </a> </span> </div><section class="mf-section-5 collapsible-block" id="mf-section-5"> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-External_links plainlinks metadata ambox ambox-style ambox-external_links" role="presentation"><tbody><tr><td class="mbox-text"><div class="mbox-text-span">This article's <b>use of <a href="/wiki/Wikipedia:External_links" title="Wikipedia:External links">external links</a> may not follow Wikipedia's policies or guidelines</b>.<span class="hide-when-compact"> Please <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Web_Content_Accessibility_Guidelines&action=edit">improve this article</a> by removing <a href="/wiki/Wikipedia:What_Wikipedia_is_not#Wikipedia_is_not_a_mirror_or_a_repository_of_links,_images,_or_media_files" title="Wikipedia:What Wikipedia is not">excessive</a> or <a href="/wiki/Wikipedia:External_links" title="Wikipedia:External links">inappropriate</a> external links, and converting useful links where appropriate into <a href="/wiki/Wikipedia:Citing_sources" title="Wikipedia:Citing sources">footnote references</a>.</span> <span class="date-container"><i>(<span class="date">September 2019</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <ul><li><a rel="nofollow" class="external text" href="http://www.w3.org/TR/WCAG22/">W3C – Web Content Accessibility Guidelines (WCAG) 2.2</a></li> <li><a rel="nofollow" class="external text" href="http://www.w3.org/WAI/intro/wcag.php">W3C – Web Accessibility Initiative (WAI) introduction to WCAG</a></li> <li><a rel="nofollow" class="external text" href="http://mauve.isti.cnr.it">Mauve</a>, a free online accessibility validator, developed by <a rel="nofollow" class="external text" href="http://hiis.isti.cnr.it">HIIS Lab</a> – ISTI of <a href="/wiki/National_Research_Council_of_Italy" class="mw-redirect" title="National Research Council of Italy">CNR</a> of <a href="/wiki/Pisa" title="Pisa">Pisa</a> (Italy).</li> <li><a rel="nofollow" class="external text" href="http://wave.webaim.org">WAVE – Online accessibility validator</a></li> <li><a rel="nofollow" class="external text" href="http://webaim.org/standards/wcag/checklist">WCAG 2.0 checklist</a></li> <li><a rel="nofollow" class="external text" href="https://www.aiim.org/Global/AIIM_Widgets/Community_Widgets/Achieving_WCAG">Achieving WCAG 2.0 with PDF/UA – Document published by the Association for Information and Image Management (AIIM)</a></li> <li><a rel="nofollow" class="external text" href="http://www.alttag.ca">WCAG for eLearning - Training Accessibility Guidelines</a></li> <li><a rel="nofollow" class="external text" href="https://www.microassist.com/digital-accessibility/digital-accessibility-checklist/">Digital Accessibility WCAG AA Checklist: 10 Critical Elements to Evaluate for Website Accessibility</a></li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20130113063317/http://www.wcagsamurai.org/erratas/introduction/">WCAG Samurai Errata</a></li> <li><a rel="nofollow" class="external text" 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Rendering was triggered because: page-view --> </section></div> <!-- MobileFormatter took 0.027 seconds --><!--esi <esi:include src="/esitest-fa8a495983347898/content" /> --><noscript><img src="https://login.m.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&mobile=1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Web_Content_Accessibility_Guidelines&oldid=1255123658">https://en.wikipedia.org/w/index.php?title=Web_Content_Accessibility_Guidelines&oldid=1255123658</a>"</div></div> </div> <div class="post-content" id="page-secondary-actions"> </div> </main> <footer class="mw-footer minerva-footer" role="contentinfo"> <a class="last-modified-bar" href="/w/index.php?title=Web_Content_Accessibility_Guidelines&action=history"> <div class="post-content last-modified-bar__content"> <span class="minerva-icon minerva-icon-size-medium minerva-icon--modified-history"></span> <span class="last-modified-bar__text modified-enhancement" data-user-name="Dajasj" data-user-gender="unknown" data-timestamp="1730620173"> <span>Last edited on 3 November 2024, at 07:49</span> </span> <span class="minerva-icon minerva-icon-size-small minerva-icon--expand"></span> </div> </a> <div class="post-content footer-content"> <div id='mw-data-after-content'> <div class="read-more-container"></div> </div> <div id="p-lang"> <h4>Languages</h4> <section> <ul id="p-variants" class="minerva-languages"></ul> <ul class="minerva-languages"><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A5%D8%B1%D8%B4%D8%A7%D8%AF%D8%A7%D8%AA_%D8%A5%D8%AA%D8%A7%D8%AD%D8%A9_%D9%85%D8%AD%D8%AA%D9%88%D9%89_%D8%A7%D9%84%D9%88%D9%8A%D8%A8" title="إرشادات إتاحة محتوى الويب – Arabic" lang="ar" hreflang="ar" data-title="إرشادات إتاحة محتوى الويب" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines – Catalan" lang="ca" hreflang="ca" data-title="Web Content Accessibility Guidelines" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines – Czech" lang="cs" hreflang="cs" data-title="Web Content Accessibility Guidelines" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines – German" lang="de" hreflang="de" data-title="Web Content Accessibility Guidelines" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%9F%CE%B4%CE%B7%CE%B3%CE%AF%CE%B5%CF%82_%CE%B3%CE%B9%CE%B1_%CF%84%CE%B7%CE%BD_%CE%A0%CF%81%CE%BF%CF%83%CE%B2%CE%B1%CF%83%CE%B9%CE%BC%CF%8C%CF%84%CE%B7%CF%84%CE%B1_%CF%84%CE%BF%CF%85_%CE%A0%CE%B5%CF%81%CE%B9%CE%B5%CF%87%CE%BF%CE%BC%CE%AD%CE%BD%CE%BF%CF%85_%CF%84%CE%BF%CF%85_%CE%99%CF%83%CF%84%CE%BF%CF%8D" title="Οδηγίες για την Προσβασιμότητα του Περιεχομένου του Ιστού – Greek" lang="el" hreflang="el" data-title="Οδηγίες για την Προσβασιμότητα του Περιεχομένου του Ιστού" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines – Spanish" lang="es" hreflang="es" data-title="Web Content Accessibility Guidelines" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AE%D8%B7%E2%80%8C%D9%85%D8%B4%DB%8C%E2%80%8C%D9%87%D8%A7%DB%8C_%D8%AF%D8%B3%D8%AA%D8%B1%D8%B3%E2%80%8C%D9%BE%D8%B0%DB%8C%D8%B1%DB%8C_%D9%85%D8%AD%D8%AA%D9%88%D8%A7%DB%8C_%D9%88%D8%A8" title="خطمشیهای دسترسپذیری محتوای وب – Persian" lang="fa" hreflang="fa" data-title="خطمشیهای دسترسپذیری محتوای وب" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%9B%B9_%EC%BD%98%ED%85%90%EC%B8%A0_%EC%A0%91%EA%B7%BC%EC%84%B1_%EA%B0%80%EC%9D%B4%EB%93%9C%EB%9D%BC%EC%9D%B8" title="웹 콘텐츠 접근성 가이드라인 – Korean" lang="ko" hreflang="ko" data-title="웹 콘텐츠 접근성 가이드라인" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines – Indonesian" lang="id" hreflang="id" data-title="Web Content Accessibility Guidelines" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines – Icelandic" lang="is" hreflang="is" data-title="Web Content Accessibility Guidelines" data-language-autonym="Íslenska" data-language-local-name="Icelandic" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines – Italian" lang="it" hreflang="it" data-title="Web Content Accessibility Guidelines" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines – Dutch" lang="nl" hreflang="nl" data-title="Web Content Accessibility Guidelines" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines – Japanese" lang="ja" hreflang="ja" data-title="Web Content Accessibility Guidelines" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Retningslinjer_for_tilgjengelighet_p%C3%A5_nettsider" title="Retningslinjer for tilgjengelighet på nettsider – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Retningslinjer for tilgjengelighet på nettsider" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines – Polish" lang="pl" hreflang="pl" data-title="Web Content Accessibility Guidelines" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Diretrizes_de_Acessibilidade_para_o_Conte%C3%BAdo_da_Web" title="Diretrizes de Acessibilidade para o Conteúdo da Web – Portuguese" lang="pt" hreflang="pt" data-title="Diretrizes de Acessibilidade para o Conteúdo da Web" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/Smernice_za_pristup_veb_sadr%C5%BEaju" title="Smernice za pristup veb sadržaju – Serbian" lang="sr" hreflang="sr" data-title="Smernice za pristup veb sadržaju" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines – Swedish" lang="sv" hreflang="sv" data-title="Web Content Accessibility Guidelines" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines – Thai" lang="th" hreflang="th" data-title="Web Content Accessibility Guidelines" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Web_%C4%B0%C3%A7eri%C4%9Fi_Eri%C5%9Filebilirlik_Y%C3%B6nergeleri" title="Web İçeriği Erişilebilirlik Yönergeleri – Turkish" lang="tr" hreflang="tr" data-title="Web İçeriği Erişilebilirlik Yönergeleri" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/Web%E5%86%85%E5%AE%B9%E6%97%A0%E9%9A%9C%E7%A2%8D%E6%8C%87%E5%8D%97" title="Web内容无障碍指南 – Chinese" lang="zh" hreflang="zh" data-title="Web内容无障碍指南" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li></ul> </section> </div> <div class="minerva-footer-logo"><img src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" alt="Wikipedia" width="120" height="18" style="width: 7.5em; height: 1.125em;"/> </div> <ul id="footer-info" 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