What is the copyright for materials in the ACL Anthology?

The ACL materials that are hosted in the Anthology are licensed to the general public under a liberal usage policy that allows unlimited reproduction, distribution and hosting of materials on any other website or medium, for non-commercial purposes. Prior to 2016, all ACL materials are licensed using the Creative Commons 3.0 BY-NC-SA (Attribution, Non-Commercial, Share-Alike) license. As of 2016, this policy has been relaxed further, and all subsequent materials are available to the general public on the terms of the Creative Commons 4.0 BY (Attribution) license; this means both commercial and non-commercial use is explicitly licensed to all.

Note that these policies only cover ACL materials. As with the DOIs, this policy does not cover third-party materials. For reproduction privileges for such materials, please approach the respective organizations.