QuestionCan I publish the Multilingual UDC Summary?

Yes. The content of the Multilingual UDC Summary (UDCs) can be published, distributed in part or as a whole in any medium providing the following statement is included:

Multilingual Universal Decimal Classification Summary (UDCC Publication No. 088).
Copyright: UDC Consortium, 2013. Released for use and distribution under the Creative Commons Attribution Share Alike 3.0 license.
UDC Consortium, PO Box 90407, 2509 LK The Hague, The Netherlands, email:

The data provided in the UDCs is released under the Creative Commons Attribution Share Alike 3.0 license and no separate publishing or use licence is required.

The content of the UDCs is created by an international team of volunteers. The UDC Consortium office will provide data exports and is available to advise on content and publishing.

We would appreciate it if publishers would inform us about any publication based on the UDC Summary so that we can disseminate information about this to UDC users. In addition, if the schedules are published in print please send a copy of the publication to the UDCC Office which maintains a UDC archive.