The copyright law of the United States (Title 17, United States code) governs the making of photocopies or other reproductions of copyrighted materials. Under certain conditions specified by law, libraries and archives are authorized to furnish a photocopy or other reproduction. One of these specified conditions is that the photocopy or reproduction is not be to "used for any purpose other than private study, scholarship or research." Use of a photocopy or reproduction for purposes in excess of "fair use" may cause the user to be liable for copyright infringement.