Section 108 allows many libraries to make copies of materials for preservation, private study, and interlibrary loan (ILL).
Notice recommended on reproduction equipment: "Notice: The copyright law of the United States (Title 17, U.S. Code) governs the making of photocopies or other reproductions of copyrighted material. The person using this equipment is liable for any infringement."
Copies for Private Study:
When receiving a copy of an item via ILL, ILL arrangements cannot have "as their purpose or effect" that the library receiving the copies on behalf of requesting patrons "does so in such aggregate quantities as to substitute for a subscription to or purchase of such work" (17 U.S.C. Sec. 108(g)(2)).
CONTU (National Commission on New Technological Uses of Copyrighted Works, 1979) guidelines permit a library to, during one calendar year, receive up to 5 copies of articles from the most recent 5 years of a journal title.