This paper focuses upon the role of the occupational therapist as a health agent with resultant responsibilities for participation in health planning and preventative program development. Included is a discussion of community problem solving methods, an overview of community organization, and principles of preventative intervention. A community-wide assessment methodology upon which to base planning decisions is presented. The principles of prevention, community assessment, and occupational therapy program development are emphasized through a discussion of a mental health model which evolved in a military community.