A number of tags have been defined under the Common->License category. These tags are either the names of the various licenses, as well as two special tags: Tag Incompatibility Info and Tag Compatibility Info. The license tags should be applied to topics as appropriate. This indicates how the topic is licensed. To indicate that two licenses are not compatible, create a topic with the two license tags assigned, and then assign the Tag Incompatibility Info tag. The presence of the Tag Incompatibility Info tag does two things: it indicates that any other license tag assigned to the topic are incompatible with each other, and that this topic contains information on why they are incompatible. Topic 23152 is an example of a topic that defines CC-BY-SA and GFDL as being incompatible. In DocBuilder there is a new licenses menu. To access it click the Pressgang logo in the top left hand corner of the document, and select Licenses. This menu shows two things: a list of all the licenses applied to topics in the document (with the ability to then scroll to those topics that have the license tags applied), and a list of any license combination that is marked as invalid by the existence of a topic like 23152. The spec http://docbuilder.usersys.redhat.com/21464/ has had the GFDL and CC-BY-SA license tags assigned to it. If you view the spec in DocBuilder, you'll see that both licenses are listed in the "Licenses Present" menu, and that the combination of these two licenses is marked as a conflict in the "License Conflicts" menu. Document URL: Section Number and Name: Describe the issue: Suggestions for improvement: Additional information: