Seven papers are presented from a 1982 conference on interagency collaboration in special education. Participants at the conference represented a variety of disciplines. B. McNulty and E. Soper cite 14 critical elements of successful interagency practice in chapter I, including communication, conflict resolution strategies, commitment to an ongoing process, and knowledge of external forces and influences. In the next chapter, E. Edgar and M. Maddox advance the Cookbook Model, an approach to interagency collaboration in which simple 'recipes' are developed, field tested, and disseminated. Notes on the evaluation of interagency collaboration are offered by J. McLaughlin and J. Elder, who propose an evaluation framework with hierarchical levels of use and concern. In the chapter on current practice, J. Elder summarizes a technical assistance project designed to improve services to preschoool handicapped children through interagency collaboration. Suggestions for group leaders are presented by B. McNulty in the chapter entitled "Managing Interagency Groups." The Maryland State Department of Education offers guidelines for the establishment and implementation of a multiple agency approach to services in chapter VI. In the final chapter, "Social Shock: The Devolution of Human Services," G. Bass addresses implications of the federal effort to turn the responsibility for human services over to the states. (CL)