Z:gnu-www-ja-common-distros--11c821-Fedora does have a clear polic/en

Fedora does have a clear policy about what can be included in the distribution, and it seems to be followed carefully. The policy requires that most software and all fonts be available under a free license, but makes an exception for certain kinds of nonfree firmware. Unfortunately, the decision to allow that firmware in the policy keeps Fedora from meeting the free system distribution guidelines.