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| <main id="maincontent"> |
| <div class="container"> <h1 id="asf-source-header-and-copyright-notice-policy">ASF Source Header and Copyright Notice Policy<a class="headerlink" href="#asf-source-header-and-copyright-notice-policy" title="Permalink">¶</a></h1> |
| <h2 id="purpose">Purpose and intended audience<a class="headerlink" href="#purpose" title="Permalink">¶</a></h2> |
| <p>This document describes how Apache committers and PMC members should handle source file licensing and copyright notices.<br/> |
| It does not apply to developers outside the ASF who are applying the Apache License to their work. The |
| <a href="/licenses/LICENSE-2.0.html#apply">appendix to the Apache License</a> describes how others can apply |
| the license to their work. This page also does not describe requirements for |
| <a href="https://infra.apache.org/apply-license.html#new">what goes in the standard LICENSE file</a> distributed with each Apache |
| product release, nor what are the <a href="/legal/resolved.html">acceptable licenses for distribution of third-party components</a>.</p> |
| <h2 id="overview">Overview<a class="headerlink" href="#overview" title="Permalink">¶</a></h2> |
| <p>Apache products are composed of lots of pieces of code across numerous source files, licensed to the ASF by various authors |
| who maintain ownership of their contributions. When a PMC goes through the process of selecting, coordinating, and arranging |
| all these contributions into a single product, the collective work is also protected by copyright law and is owned by |
| the ASF -- even though each individual piece of code is still owned by its contributor. An Apache product may also |
| include other components that were not submitted directly to the ASF, but are <a href="/legal/resolved.html">licensed in a way</a> |
| that is consistent with the ASF's licensing practices.</p> |
| <p>Considering all of these factors, this document describes how to:</p> |
| <ul> |
| <li><a href="#headers">Label source headers of contributed source</a></li> |
| <li><a href="#3party">Treat copyright and licensing of third-party works</a></li> |
| <li><a href="#notice">Use the NOTICE file to collect copyright notices and required attributions</a></li> |
| </ul> |
| <p>This document also includes answers to <a href="#faq">Frequently Asked Questions</a>, which we update as new questions come up on the <a href="/foundation/mailinglists.html#foundation-legal">legal-discuss</a> mailing list.</p> |
| <h2 id="updates">Notification of Updates to this Page<a class="headerlink" href="#updates" title="Permalink">¶</a></h2> |
| <p>Updates to this page are sent to the <a href="/foundation/mailinglists.html#foundation-legal">legal-discuss</a> mailing list.</p> |
| <h2 id="headers">Source File Headers for Code Developed at the ASF<a class="headerlink" href="#headers" title="Permalink">¶</a></h2> |
| <p>This section refers only to works submitted directly to the ASF by the copyright owner or owner's agent.</p> |
| <ol> |
| <li id="header-existingcopyright">If the source file is submitted with a copyright notice included in it, the copyright owner (or owner's agent) must either: |
| <ol type="a"> |
| <li>remove such notices, or</li> |
| <li>move them to the NOTICE file associated with each applicable project release, or</li> |
| <li>provide written permission for the ASF to make such removal or relocation of the notices.</li> |
| </ol> |
| </li> |
| <li id="header-text">Each source file should include the following license header -- note that there should be no copyright notice in the header: |
| <pre><code>Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| </code></pre> |
| </li> |
| </ol> |
| <h2 id="3party">Treatment of Third-Party Works<a class="headerlink" href="#3party" title="Permalink">¶</a></h2> |
| <ol start="0"> |
| <li id="3party-defn">The term "third-party work" refers to a work not submitted directly to the ASF by the copyright owner or owner's agent. This includes parts of a work submitted directly to the ASF for which the submitter is not the copyright owner or owner's agent. </li> |
| <li id="3party-nomove">Do not modify or remove any copyright notices or licenses within third-party works.</li> |
| <li id="3party-addlicense">Make sure that every third-party work includes its associated license, even if that requires |
| adding a copy of the license from the third-party download site into the distribution.</li> |
| <li id="3party-noapachelicense">Do not add the standard Apache License header to the top of third-party source files.</li> |
| <li id="3party-minormodsok">Minor modifications/additions to third-party source files should typically be licensed under the same terms as the rest of the third-party source for convenience.</li> |
| <li id="3party-majormodpmc">The project's PMC should deal with major modifications/additions to third-party source files on a case-by-case basis.</li> |
| </ol> |
| <h2 id="notice">NOTICE file<a class="headerlink" href="#notice" title="Permalink">¶</a></h2> |
| <ol start="0"> |
| <li id="notice-required">Every Apache distribution must include a NOTICE file in the top directory, along with the standard LICENSE file.</li> |
| <li id="notice-text">The top of each NOTICE file must include the following text, suitably modified to reflect the product name and the year(s) |
| of distribution of the current and past versions of the product: |
| <pre><code>Apache [PRODUCT_NAME] |
| Copyright [XXXX-XXXX] The Apache Software Foundation |
| |
| This product includes software developed at |
| The Apache Software Foundation (http://www.apache.org/). |
| </code></pre> |
| </li> |
| <li id="notice-other">Use the remainder of the NOTICE file to include [required third-party notices][1]. |
| The NOTICE file may also include copyright notices moved <a href="#header-existingcopyright">from source files submitted to the ASF</a>.</li> |
| <li>See also <a href="/dev/licensing-howto.html#mod-notice">Modifications to NOTICE</a></li> |
| </ol> |
| <h2 id="faq">Frequently Asked Questions<a class="headerlink" href="#faq" title="Permalink">¶</a></h2> |
| <h3 id="faq-examplenotice">Where can I find an example of the NOTICE file that must be included in every ASF release?<a class="headerlink" href="#faq-examplenotice" title="Permalink">¶</a></h3> |
| <p>See the <a href="/licenses/example-NOTICE.txt">httpd project NOTICE example</a> or the <a href="/licenses/NOTICE-2.0.txt">boilerplate NOTICE file</a></p> |
| <h3 id="faq-docs">Does this policy apply to documentation files included in a release?<a class="headerlink" href="#faq-docs" title="Permalink">¶</a></h3> |
| <p>Yes.</p> |
| <h3 id="faq-webpages">Does this policy apply to content displayed on our web sites?<a class="headerlink" href="#faq-webpages" title="Permalink">¶</a></h3> |
| <p>No. Our web sites do not have an associated NOTICE file. Instead we may soon be making the terms of such content |
| explicit through a "Terms of Use" or "Legal Information" link in the footer of web pages. At this point, no action is |
| required for Apache web sites.</p> |
| <h3 id="faq-siteindocs">What if my project includes its web site within a product distribution?<a class="headerlink" href="#faq-siteindocs" title="Permalink">¶</a></h3> |
| <p>With <a href="#faq-exceptions">few exceptions</a>, all human-readable Apache-developed files that are included within a distribution must |
| include the <a href="#header-text">header text</a>. Documentation, including web site documentation distributed with the |
| release, may include the header text within some form of metadata (such as HTML comments) or as a header or footer |
| appearing in the visible documentation.</p> |
| <h3 id="faq-exceptions">What files in an Apache release do not require a license header?<a class="headerlink" href="#faq-exceptions" title="Permalink">¶</a></h3> |
| <p>A file without any degree of creativity in either its literal elements or its structure is not protected by |
| copyright law; therefore, such a file does not require a license header. If in doubt about the extent of the |
| file's creativity, add the license header to the file.</p> |
| <p>It may make sense for some other files to have no license header. Three examples are:</p> |
| <ul> |
| <li>Short informational text files; for example README, INSTALL files. The expectation is that these files make it obvious which product they relate to.</li> |
| <li>Test data for which the addition of a source header would cause the tests to fail.</li> |
| <li>'Snippet' files that are included in a larger file, when the larger file would have duplicate licensing headers.</li> |
| </ul> |
| <p>PMCs should use their judgement, err on having a source header and contact legal-discuss@ if unsure.</p> |
| <h3 id="is-a-short-form-of-the-source-header-available">Is a short form of the source header available?<a class="headerlink" href="#is-a-short-form-of-the-source-header-available" title="Permalink">¶</a></h3> |
| <p>Sometimes the situation of a file is such that the recommended Apache source header is not appropriate. |
| Examples would be within images, minified JavaScript or PDFs. In those cases, the following shorter |
| form may be used.</p> |
| <pre><code>"Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements; and to You under the Apache License, Version 2.0. " |
| </code></pre> |
| <p>Provide any additional licensing information relevant to the file (ie. that would ordinarily be in the NOTICE) |
| directly in the file when the short form is used.</p> |
| <p>PMCs should use their judgement, err on having a full source header and contact legal-discuss@ if unsure.</p> |
| <h3 id="faq-binaries">Does the policy apply to binary/object files, such as executables or JAR files?<a class="headerlink" href="#faq-binaries" title="Permalink">¶</a></h3> |
| <p>Yes. Even if there are no source files within the release, the LICENSE file and NOTICE file are still both required within |
| every ASF distribution -- whether the unit of distribution is a .jar, .msi, .tar.gz, .zip, .exe installer, or any |
| other file format used for distributions. For example, Windows .exe files must not be used as a unit of distribution |
| unless they are installers and include the LICENSE and NOTICE files in their installation.</p> |
| <h3 id="faq-3partybinaries">Does this policy apply to third-party binary/object files included within an ASF release?<a class="headerlink" href="#faq-3partybinaries" title="Permalink">¶</a></h3> |
| <p>Yes. See the policy's <a href="#3party">third-party works</a> section, particularly the |
| <a href="#3party-addlicense">requirement</a> to ensure a license exists for each third-party work.</p> |
| <h3 id="faq-media">Do images or other media require a copyright line in the NOTICE file?<a class="headerlink" href="#faq-media" title="Permalink">¶</a></h3> |
| <p>If the media was contributed directly to an ASF project, the contributor has the option to insert their copyright notice |
| in the NOTICE file, as is <a href="#header-existingcopyright">described for source files</a>. If the media comes from a |
| third-party source (not contributed directly to the project), then any copyright notice that is obviously associated with |
| the media should be copied into the NOTICE file.</p> |
| <h3 id="faq-whyheader">Why is a licensing header necessary?<a class="headerlink" href="#faq-whyheader" title="Permalink">¶</a></h3> |
| <p>License headers allow someone examining the file to know the terms governing use of the work, even when it is distributed without |
| the rest of the distribution. Without a licensing notice, it must be assumed that the author has reserved all rights, |
| including the right to copy, modify, and redistribute.</p> |
| <h3 id="faq-nonasf">Does this policy apply to projects outside the ASF that use the Apache License?<a class="headerlink" href="#faq-nonasf" title="Permalink">¶</a></h3> |
| <p>No. This is strictly an ASF policy. Other projects using the Apache License should still refer to the |
| <a href="/licenses/LICENSE-2.0.html#apply">license's appendix</a> for guidance on applying a header to their source files.</p> |
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