Eighteen state-supported academic libraries, primarily in Illinois but also in other midwestern and western states, were contacted by letter (14) or by telephone (4) in order to obtain information on their circulation policies and procedures. Fifteen libraries responded by sending copies of their policies. Information was also collected by visiting and talking with circulation librarians in some of these libraries. This document outlines findings of the investigation. Sections cover: (1) general statements of library circulation policy as found in policy statements or state administrative codes; (2) types of users allowed to borrow library materials; (3) loan periods for books; periodicals; reserve materials; browsing room books and materials; newspapers; maps, pictures, and pamphlets; records; government documents; microforms; instructional materials and juvenile books; and theses; (4) fines and fees for the same categories of materials; (5) charges for lost materials; and (6) policies for dealing with unclear records, i.e., student records which note unpaid library bills. A summary of the circulation procedures reported and a list of six references conclude the document. (ESR)