The work of eight task force committees on mental retardation is considered in this report. Major findings and recommendations are summarized concerning the nature of mental retardation; present services for the mentally retarded; the role of volunteer organizations; prevention; case finding, diagnosis, and evaluation; public awareness; special education services; vocational training and employment; community care centers; residential facilities; and coordination and implementation of programs. Three appendixes list names of the Advisory Council on Mental Retardation, members of the problem study groups, and the editing committee and editorial staff. (BW)