A study, in three parts, focuses on the disabled adolescent in terms of difficulties experienced during the last years of basic schooling and at the time of transition into the adult world. Part I examines trends and major issues affecting policy in OECD (Organisation for Economic Cooperation and Development) Member countries. Sections address the historical perspective, political and social trends, administration and funding of national educational systems, current developments, the changing concept of handicap, new roles and functions for special education, the move from segregation toward integration, the educational system and mainstreaming, professional barriers to service delivery, and three aspects of integration. Part II contains eight papers which illustrate different approaches to integration. Entries include the following: "Changes in the Educational System Favouring Integration" (A. Labregere); "The Warnock Report and Integration" (J. Fish); "The Reintegration of the Handicapped Into Community Life" (T. Laine); "School Integration of the Mentally Retarded" (M. Soder); and "Policies for Basic Education in Norway and the Concept of Integration" (L. Vislie). Part III looks at the issues raised by innovative strategies and offers guidelines on some of the steps to be taken if progress is to be made. Among the suggestions given are to identify the special needs and services required by the individual without labeling, to minimize protection and maximize experience in everyday normal environments, and to train all personnel concerned with special education. (SB)