This is the list of licenses that have been approved by Creative Commons as compatible with the two Creative Commons ShareAlike licenses, CC BY-SA and CC BY-NC-SA. You must use one of the licenses listed on this page for your contribution when you make adaptations of material under BY-SA or BY-NC-SA and share the adaptation, unless your use falls under an exception or limitation to copyright. Below is the definitive list of permissible licenses for your contributions to adaptations, which depends on the particular license that covers the material you are adapting.