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      <div class="breadcrumb"><a href="/">Home</a> » <a href="/licenses">Licenses</a></div>

      <h1 property="dc:title">W3C Software Notice and Document License (2015-05-13)</h1>
      <div style="display:none;"><code property="spdx:deprecated">false</code></div>
      <h2>Full name</h2>
          <p style="margin-left: 20px;"><code property="spdx:name">W3C Software Notice and Document License (2015-05-13)</code></p>

      <h2>Short identifier</h2>
          <p style="margin-left: 20px;"><code property="spdx:licenseId">W3C-20150513</code></p>

      <h2>Other web pages for this license</h2>
          <div style="margin-left: 20px;">
            <ul>
             <li>
               <a href="https://www.w3.org/Consortium/Legal/2015/copyright-software-and-document" rel="rdfs:seeAlso" isValid=true isLive=true isWayBackLink=false match=true timestamp=2025-07-01T14:56:53Z>https://www.w3.org/Consortium/Legal/2015/copyright-software-and-document</a>
               <!--Tentative way of displaying information <p>isValid: true, isLive: true, isWayBackLink: false, match: true, timestamp: 2025-07-01T14:56:53Z</p> -->
             </li>
             <li>
               <a href="https://www.w3.org/copyright/software-license-2015/" rel="rdfs:seeAlso" isValid=true isLive=true isWayBackLink=false match=true timestamp=2025-07-01T14:56:54Z>https://www.w3.org/copyright/software-license-2015/</a>
               <!--Tentative way of displaying information <p>isValid: true, isLive: true, isWayBackLink: false, match: true, timestamp: 2025-07-01T14:56:54Z</p> -->
             </li>
             <li>
               <a href="https://www.w3.org/copyright/software-license-2023/" rel="rdfs:seeAlso" isValid=true isLive=true isWayBackLink=false match=false timestamp=2025-07-01T14:56:54Z>https://www.w3.org/copyright/software-license-2023/</a>
               <!--Tentative way of displaying information <p>isValid: true, isLive: true, isWayBackLink: false, match: false, timestamp: 2025-07-01T14:56:54Z</p> -->
             </li>
           </ul>
          </div>

      <div property="spdx:isOsiApproved" style="display: none;">true</div>

      <h2 id="notes">Notes</h2>
          <p style="margin-left: 20px;">This license takes effect 13 May, 2015. The changes from the previous version make clear that the license is applicable to both software and text, by changing the name and substituting &quot;work&quot; for instances of &quot;software and its documentation.&quot; It moves &quot;notice of changes or modifications to the files&quot; to the copyright notice, to make clear that the license is compatible with other liberal licenses. In 2023, W3C made minor modifications to this license as of Jan 1, 2023 (see URL above). However, those changes did not give rise to a new license under the SPDX Matching Guidelines, thus the same id can be used.</p>

      <h2 id="licenseText">Text</h2>
      
      <blockquote cite="https://spdx.github.io/spdx-spec/v2.3/license-matching-guidelines-and-templates/">
          <div style="border: 2px solid grey; padding: 8px">
		      Text in italicized blue is omittable (see <a href="https://spdx.github.io/spdx-spec/v2.3/license-matching-guidelines-and-templates/#b35-guideline-omittable-text">Matching Guidelines B.3.5</a>).
		      License or exception text will match to the text for the specified identifier if it either includes or excludes this omittable text.
			  <br/>
			  <br/>
			  Text in red is replaceable (see <a href="https://spdx.github.io/spdx-spec/v2.3/license-matching-guidelines-and-templates/#b34-guideline-replaceable-text">Matching Guidelines B.3.4</a>).
			  License or exception text will match to the text for the specified identifier if it includes a permitted variant of this replaceable text.
			  The permitted variants can be found in the corresponding regular expression as shown in title text visible by hovering over the red text.
	      </div>
	  </blockquote>

      <div property="spdx:licenseText" class="license-text">
      
      <p>This work is being provided by the copyright holders under the
         following license.</p>

      <p>License
        <br />
By obtaining and/or copying this work, you (the licensee)
             agree that you have read, understood, and will comply
             with the following terms and conditions.
      </p>

      <p>Permission to copy, modify, and distribute this work, with or
         without modification, for any purpose and without fee or
         royalty is hereby granted, provided that you include the
         following on ALL copies of the work or portions thereof,
         including modifications:</p>

<ul style="list-style:none">
        
<li>
            <var class="replaceable-license-text"><span title="can be replaced with the pattern .{0,20}"> •</span></var>
          The full text of this NOTICE in a location viewable to
             users of the redistributed or derivative work.
        </li>
        
<li>
            <var class="replaceable-license-text"><span title="can be replaced with the pattern .{0,20}"> •</span></var>
          Any pre-existing intellectual property disclaimers,
             notices, or terms and conditions. If none exist, the
             W3C Software and Document Short Notice should be
             included.
        </li>
        
<li>
            <var class="replaceable-license-text"><span title="can be replaced with the pattern .{0,20}"> •</span></var>
          Notice of any changes or modifications, through a
             copyright statement on the new code or document such
             as &quot;This software or document includes material copied
             from or derived from <var class="replaceable-license-text"><span title="can be replaced with the pattern .+"> [title and URI of the W3C
             document]. Copyright (c) [YEAR] W3C® (MIT, ERCIM,
             Keio, Beihang)</span></var>.&quot;
        </li>
      
</ul>
      <p>Disclaimers
        <br />
THIS WORK IS PROVIDED &quot;AS IS,&quot; AND COPYRIGHT HOLDERS MAKE
             NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED,
             INCLUDING BUT NOT LIMITED TO, WARRANTIES OF
             MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE
             OR THAT THE USE OF THE SOFTWARE OR DOCUMENT WILL NOT
             INFRINGE ANY THIRD PARTY PATENTS, COPYRIGHTS,
             TRADEMARKS OR OTHER RIGHTS.
      </p>

      <p>COPYRIGHT HOLDERS WILL NOT BE LIABLE FOR ANY DIRECT, INDIRECT,
         SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF ANY USE OF THE
         SOFTWARE OR DOCUMENT.</p>

      <p>The name and trademarks of copyright holders may NOT be used in
         advertising or publicity pertaining to the work without
         specific, written prior permission. Title to copyright in this
         work will at all times remain with copyright holders.</p>

    
      </div>

      <h2  id="licenseHeader">Standard License Header</h2>
      <div property="spdx:standardLicenseHeader" class="license-text">
        
        
         <var class="replaceable-license-text"><span title="can be replaced with the pattern .+"> [$name_of_software:
    $distribution_URI]</span></var>

Copyright (c)
    <var class="replaceable-license-text"><span title="can be replaced with the pattern .+"> [$date-of-software]</span></var> World Wide Web
    Consortium, (Massachusetts Institute of Technology, European Research
    Consortium for Informatics and Mathematics, Keio University, Beihang).
    All Rights Reserved. This work is distributed under the W3C® Software
    License [1] in the hope that it will be useful, but WITHOUT ANY
    WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.

    <var class="replaceable-license-text"><span title="can be replaced with the pattern .{0,20}"> [1]</span></var> http://www.w3.org/Consortium/Legal/copyright-software

  
      </div>
      <div property="spdx:standardLicenseTemplate" style="display: none;">
      This work is being provided by the copyright holders under the following license.&#10;&#10;License&#10;By obtaining and/or copying this work, you (the licensee) agree that you have read, understood, and will comply with the following terms and conditions.&#10;&#10;Permission to copy, modify, and distribute this work, with or without modification, for any purpose and without fee or royalty is hereby granted, provided that you include the following on ALL copies of the work or portions thereof, including modifications:&#10;&#10;   &lt;&lt;var;name&#61;&quot;bullet&quot;;original&#61;&quot;•&quot;;match&#61;&quot;.{0,20}&quot;&gt;&gt; The full text of this NOTICE in a location viewable to users of the redistributed or derivative work.&#10;   &lt;&lt;var;name&#61;&quot;bullet&quot;;original&#61;&quot;•&quot;;match&#61;&quot;.{0,20}&quot;&gt;&gt; Any pre-existing intellectual property disclaimers, notices, or terms and conditions. If none exist, the W3C Software and Document Short Notice should be included.&#10;   &lt;&lt;var;name&#61;&quot;bullet&quot;;original&#61;&quot;•&quot;;match&#61;&quot;.{0,20}&quot;&gt;&gt; Notice of any changes or modifications, through a copyright statement on the new code or document such as &quot;This software or document includes material copied from or derived from &lt;&lt;var;name&#61;&quot;title&quot;;original&#61;&quot;[title and URI of the W3C document]. Copyright (c) [YEAR] W3C® (MIT, ERCIM, Keio, Beihang)&quot;;match&#61;&quot;.+&quot;&gt;&gt; .&quot;&#10;Disclaimers&#10;THIS WORK IS PROVIDED &quot;AS IS,&quot; AND COPYRIGHT HOLDERS MAKE NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO, WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE OR DOCUMENT WILL NOT INFRINGE ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS.&#10;&#10;COPYRIGHT HOLDERS WILL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF ANY USE OF THE SOFTWARE OR DOCUMENT.&#10;&#10;The name and trademarks of copyright holders may NOT be used in advertising or publicity pertaining to the work without specific, written prior permission. Title to copyright in this work will at all times remain with copyright holders.&#10;&#10;
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