Sherpa/Romeo is an online resource that aggregates publisher and journal open access policies from around the world. As of 2020, Sherpa/Romeo included policy information from over 4,250 publishers. Search journal titles or ISSNs in Sherpa/RoMEO.
Before submitting your published work to DigitalCommons, the copyright restrictions and permissions need to be checked. These can vary widely between different Journals and Publishers and sometimes involves reviewing the Copyright Transfer Agreement which was signed when the work was published. It is always a good idea to retain your Copyright Transfer Agreement because publishers will change and update their policies. The resources listed below can be used by you to assess restrictions such as: permission to post on a repository, embargo period, requirement statements from the publisher, and which version of your work can be submitted. Whether you are evaluating your own work or the repository manager is evaluating your list of publications, it is important to be familiar with publications versions and embargo periods.
Most publishers use one of two mechanisms for transferring copyright or licensing a work for publication. Additionally, most publishers distinguish between different versions of an author's work for purposes of self-archiving and distribution. These concepts are important when evaluating copyright transfer and reuse licensing agreements.
Under U.S. federal law, the copyright holder has the following exclusive rights: