Examined are the roles of special service personnel (SSP) who provide support services for Iowa public school teachers by three methods: helping a specific child, helping develop instructional program content, and helping develop new instructional skills. The 13 SSPs include counselor, director of special education, educational consultant, hearing clinician, itinerant/resource teacher, principal, regional education media center, school psychologist, school nurse, school social worker, speech clinician, vocational rehabilitation counselor, and work-experience coordinator. SSPs are available at three organizational levels in Iowa: local school system, county or merged county school system, and area served by regional educational materials center. A brief explanation of teacher preparation for using SSP includes gathering materials on learning problems, gathering information on behavior problems, and use of SSP in content areas or development of teacher skills. The latter half of the work is devoted to an overview of each of the 13 SSPs, with discussion focus on their basic functions and contributions to child, teacher, and total educational program. Concluding the work is a short discussion on evaluating results of SSP services. (CB)