Most TEI Consortium materials, including the TEI Guidelines, are copyrighted by 
the Text Encoding Initiative Consortium, and are made available under the terms 
and conditions of both:

Creative Commons Attribution 3.0 Unported License 
http://creativecommons.org/licenses/by/3.0/ 

and a 

BSD 2-Clause license
http://www.opensource.org/licenses/BSD-2-Clause


You may choose the license that is most appropriate for the use you intend to 
make of the TEI material. Hence it is made available under both the CC+BY and 
BSD-2 licences. The CC+BY licence is generally appropriate for usages which 
treat TEI content as data or documentation. The BSD-2 licence is generally 
appropriate for usage of TEI content in a software environment. For further 
information or clarification, please contact the TEI Consortium(info@tei-c.org).

This license permits a wide range of uses, as long as attribution is preserved, 
including the following:

* Users may make copies of TEI materials, whether the XML source or the derived 
products (XHTML, PDF, DTD, RELAX NG, etc.) either digitally, with a 
photocopier, by audio recording, or by any other means.
* Users may distribute copies of the TEI materials, either for free or for a 
fee.
* Users may make changes to TEI materials and distribute the modified version 
provided that they provide attribution of the TEI Consortium as the source.

The following activities are all allowed and encouraged:
* Downloading a copy of the HTML version of the TEI Guidelines or its source
* Giving a copy of the HTML version of the TEI Guidelines to a friend.
* Downloading or giving to others the source of the TEI materials.
* Distributing copies of the TEI materials (source or derived) on media or 
from websites.
* Making derived software that uses the TEI materials as a source
But make sure to provide reasonable attribution back to the TEI Consortium, for 
example by citing this website.

BSD 2-Clause
If you choose to use the BSD 2-Clause license, these conditions require 
including the following:

===
Copyright 2013 TEI Consortium. All rights reserved.
          
Redistribution and use in source and binary forms, with or without 
modification, are permitted provided that the following conditions are met:
  *    Redistributions of source code must retain the above copyright notice, 
       this list of conditions and the following disclaimer.
  *    Redistributions in binary form must reproduce the above copyright notice, 
       this list of conditions and the following disclaimer in the documentation 
       and/or other materials provided with the distribution.
        
 This software is provided by the copyright holders and contributors
 "as is" and any express or implied warranties, including, but not
 limited to, the implied warranties of merchantability and fitness for
 a particular purpose are disclaimed. In no event shall the copyright
 holder or contributors be liable for any direct, indirect, incidental,
 special, exemplary, or consequential damages (including, but not
 limited to, procurement of substitute goods or services; loss of use,
 data, or profits; or business interruption) however caused and on any
 theory of liability, whether in contract, strict liability, or tort
 (including negligence or otherwise) arising in any way out of the use
 of this software, even if advised of the possibility of such
 damage.
===