If copyright is held or is in the public domain, the material can be linked within the above time frame. Sorry, that s just what it takes. For items published by companies that deal with the CCC on a regular basis, permission is usually granted or denied in a matter of days and the library is billed for the royalties. If the CCC must request permission directly from the rights holder, permission may take up to a month. Permission applies only to a single section of a single course.
Readings are for the use of class members and the instructor only.