DOAJ defines open access journals as journals that use a funding model that does not charge readers or their institutions for access. From the BOAI definition [1] of "open access" we take the right of users to "read, download, copy, distribute, print, search, or link to the full texts of these articles" as mandatory for a journal to be included in the directory.
A work is in the public domain if:
When works pass into the Public Domain.
Search works registered and documents recorded with the U.S. Copyright Office.