The report describes a regionalized system of community based child health centers developed in Iowa to provide coordinated secondary level health services for children with chronic illness and handicapping conditions. The system is based on two principles: (1) Communities will be given the responsibility for determining which health services are needed and for providing these child health services with state programs serving as the backup resource; (2) Community programs that provide child health services will function in close cooperation and collaboration with established community systems (medical care system, educational system and social services system) that provide other child services. Chapters of the report have the following titles: (1) Introduction; (2) Networking to Achieve Change; (3) Development of Regional Center Service System; (4) A Stratified System of Care; (5) Results: The Creation of a System of Services; (6) Data, Interpretation, and Evaluation; (7) Lessons and Conclusions; and (8) Future Directions, Questions and Issues. A 34-item bibliography is followed by an appendix containing such items as the inter-agency memorandum of understanding, an individual service plan summary, a health survey report, health services questionnaires, and evaluation data. (Author/DB)