A product of the Project on Vocational Education Models for Linking Agencies Serving the Handicapped, this manual describes various federal agencies and national organizations and outlines their policies and activities related to interagency agreements. (The above-mentioned project is designed to help states meet the needs of students at the secondary, postsecondary, and adult levels by examining those components of interagency linkages that are necessary to ensure accessibility and delivery of supportive services to handicapped people in vocational education.) Presented first are brief descriptions of the following five federal agencies cooperating in the linkage project: the Office of Adult and Vocational Education, the Office of Special Education, the Rehabilitation Services Administration, the Office of Elementary and Secondary Education, and the National Institute of Education. Selected federal agencies are also described, including library programs, the Federal Interagency Committee on Education, the Women's Educational Equity Program, and the National Occupational Information Coordinating Committee. Outlined are the goals and activities of 17 professional associations and advocacy groups. Appended to the report are descriptions of six related projects. (A related status report of interagency linkages at the state level and a handbook on developing effective linking strategies are available separately--see note.) (MN)