Phase I of this project focused on the media-related needs of handicapped students being mainstreamed into regular K-12 school programs. The emphasis was on how the school library media specialist can use, adapt, or supplement the components of the media center to meet those needs. These components encompass a media program of services and instruction which make the facility, equipment, and collection accessible to the entire school community through the design and management of a professional media staff. To this end an operational model, guidelines, and assessment guide have been developed for use by media personnel in meeting the mandates of P.L. 94-142 (The Education for All Handicapped Children Act). These materials will be field-tested during Phase II of the project. An extensive review of the literature was conducted which showed little in the way of field-tested, comprehensive materials on all aspects of a media program in relation to all handicapping conditions. The products of this project are designed to fill this gap. The major product of Phase I of the project is the manual entitled "Mainstreaming in the Media Center: A Manual for Media Specialists." This manual, which is included in this report as Appendix A and makes up the major part of the document, consists of the operational model, the guidelines, and an assessment guide for use by school library media personnel in meeting the needs of mainstreamed handicapped students. An extensive list of resources is also provided. (20 references) (Author/BBM)