The 1976 revision was undertaken for two primary reasons. First, technological developments and their impact on what might be copyrighted, how works might be copied, and what constituted an infringement needed to be addressed. Second, the revision was undertaken in anticipation of Berne Convention adherence by the US. It was felt that the statute needed to be amended to bring the US into accord with international copyright law, practices, and policies. The 1976 act preempted all previous copyright law and extended the term of protection to life of the author plus 50 years (works for hire were protected for 75 years). The act covered the following areas: scope and subject matter of works covered, exclusive rights, copyright term, copyright notice and copyright registration, copyright infringement, fair use and defenses and remedies to infringement. With this revision, for the first time the fair use and first sale doctrines were codified, and copyright was extended to unpublished works. In addition, a new section was added, section 108, that allowed library photocopying without permission for purposes of scholarship, preservation, and interlibrary loan under certain circumstances.
In addition to section 108, section 107 is important to libraries because it contains an exception to the exclusive rights of owners to make and distribute copies of their works. It states that “the fair use of a copyrighted work, including such use by reproduction in copies or phonorecords or by any other means specified by that section, for purposes such as criticism, comment, news reporting, teaching (including multiple copies for classroom use), scholarship, or research, is not an infringement of copyright.” To determine whether the use of a work is a fair use, the following four factors are to be considered: purpose and character of the use, nature of the copyrighted work, the amount and substantiality of the portion used in relation to the whole, and the effect of the use on the potential market. See Title 17of the US Code.