Although Community Mental Health Centers (CMHCs) are mandated to serve all clients requiring mental health services including those who are mentally retarded, it appears that many CMHCs have no programs designed to address the needs of the retarded. This paper describes a financially sound outpatient program which provides psychological and support services to retarded adults in a large, comprehensive CMHC. The article first provides a justification for mental health services for the retarded. A description of the interdisciplinary staff (director, social workers, psychiatrist, mental health coordinator) and the services they provide (diagnostic testing and evaluation, family therapy, behavioral intervention, counseling, psychiatric medical care) is presented along with a list of ancillary services such as speech therapy, occupational and physical therapy, and sex education. Examples of problems which have been encountered within the community and agency are given (acting out, physical handicaps, time required for extensive case management, staff reluctance to work with the mentally retarded, difficulty in coordinating consistency of treatment) as well as four brief clinical examples of clients served by the program. Lists of the program's assumptions, expected benefits, and goals and objectives are included. (Author/AG)