The following license terms  apply to the use of NeTEx.

Use of CEN Technical Specification Documents

NeTEx is published as a series of CEN Technical Specification documents, (Part1, Part2, Part3 etc). These are CEN copyright publications and are available for purchase from the shops of the respective National Standards Organisations of each CEN country:  AFNOR (fr),  BSI (uk), NEN (nl),  SIST(si), UNI (it), VDV (de),  etc).

Use of XML Schema & UML Models

The NeTEx XML Schema  & UML models are free to use under a APACHE Version 2 licence (more information here, also note that APACHE v2 is compatible with GPL v3 that was formerly used for NeTEx XSD and Schema). You may use the schema and models without necessarily purchasing the  CEN NeTEx publications.

Copyright (C) 209-2014 CEN

The CEN NeTEx Schema and UML models are free software: you can redistribute them and/or modify them  under the terms of the APACHE License as published by the Apache Software Foundation, either version 2 of the License, or
(at your option) any later version, see <http://www.apache.org/licenses/>.

The CEN NeTEx Schema and UML models are distributed in the hope that they will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.