Two librarians at Western Oregon State College, a small liberal arts institution serving 4,000 students, rebuilt the library's test collection in 1990 and, in the process, broadened it beyond its traditional education and psychology emphasis into an interdisciplinary collection. At the outset, the project received generous funding and an annual line item slot for test materials was assured. With input from key education faculty members, the librarians reviewed the existing collection, which was largely the result of random donations from faculty. Faculty from the Departments of Education, Psychology, Physical Education, Criminal Justice, Sociology, Business, English as a Second Language, Special Education, Clinical Child and Youth Work, Teaching Research, and Student Development were surveyed and met together to provide input into new test selection. The librarians developed a collection database to facilitate cataloging, test processing procedures, and new test collection and circulation policies and procedures. The timeframe was less than six months. This report provides background information on the college, detailed descriptions of the rebuilding process, and recommendations for maintaining the collection. Appendices include the faculty survey form; the database format used in cataloging tests; and test collection circulation policies, procedures and forms. (Contains 52 references.) (KRN)