By definition, Open Educational Resources, though they may be copyrighted, are made available under various open licenses which permit free reuse, revision, and customization by educators and students.
The most commonly-used open licensing scheme for these materials is one of the six Creative Commons licenses. Our librarians are happy to answer questions about these licenses.
More information about Creative Commons can be found on our Open Access guide.
For information on permissible uses of copyrighted materials not licensed under an open license (including materials available through the University Libraries), visit our Copyright guide. These pages may be particularly helpful: