Do CC licenses impose obligations on IGOs (or other licensors) that could result in liability?
No. CC licenses do not impose obligations on licensors, but instead grant others permission to use the licensed works consistent with license terms and conditions. The only exception is the undertaking by licensors not to enforce their copyright as long as the license terms are respected. CC licensors have the choice of enforcing (or not) any copyright licenses they grant. This point is worth stressing. CC licenses impose no affirmative obligations of any kind on licensors. There are more than 500,000,000 CC-licensed texts, photos, websites and other works. Since the licenses were first published more than 8 years ago, CC has not been made aware of any claim made against a licensor under the licenses. The reason is simple: licensors are only waiving their rights to enforce copyright under certain circumstances, not accepting any affirmative duties or obligations in the license itself. This makes CC licenses qualitatively different from the kinds of contracts or agreements that could su
