Presented by the President's Committee on Mental Retardation are an analysis of architectural barriers and a summary of new state cases, updated information on previously reported cases, and a listing of cases all concerned with the legal rights of the retarded. Architectural barriers are considered in terms of statutory actions and constitutional theories that have been used to challenge such barriers. New cases are reviewed for the following issues: architectural barriers, right to treatment, right to just compensation for labor, right to education, exclusionary zoning, sterilization, and right to control money. Updated information is provided on previously reported cases concerned with right to treatment, right to just compensation for labor, right to education, right to fair classification, exclusionary zoning, sterilization, and commitment laws. The final section lists closed cases in the following areas: right to treatment, right to just compensation for labor, right to public education, custody, commitment laws, and exclusionary zoning. (DB)