This final report is a product of a Preservation Planning Program (PPP) self-study conducted by the State University of New York (SUNY), Stony Brook, working with the Association of Research Libraries' (ARL) Office of Management Studies (OMS). The PPP is designed to put self-help tools into the hands of library staff responsible for developing plans and procedures for preserving library materials. A study team first conducted a background study to acquire an overview of the factors in the library that related to preservation. The study team appointed task forces of both staff from throughout the university libraries and some key personnel from non-library areas, and charged them with collecting and analyzing data in order to assess: (1) the effect of the present state of environmental conditions on the preservation of library materials; (2) patterns in the physical condition of the collections; (3) strengths and weaknesses of preservation resources currently available to the Library; (4) the vulnerability of the collections to physical disasters; and (5) the strengths and weaknesses of the current library preservation activities and their administration and organization. In addition to summaries of the task force reports, this document contains task force membership lists; background information on the study; and discussions of libraries in their institutional setting, external factors affecting preservation, and identifying the problems at Stony Brook. Recommendations are offered in the following areas: physical housing, shelving, and support systems; preservation, replacement and reproduction decision making; physical treatment; internal and external organization; and staff and user education. A brief implementation plan concludes the report. (THC)