This final report provides a descriptive overview of three approaches which the Hawaii Demonstration Project initiated to reduce unintended teenage pregnancies. Project evaluation findings are summarized; both qualitative and quantitative data are presented for a comprehensive picture of the project and its input. Project limitations and successes are discussed. Historical and demographic perspectives on the incidence of teenage pregnancy and services available in Hawaii are provided, and the organization of the project is described. Descriptions of the three individual projects are drawn from the final reports of project coordinators. The projects described are: (1) a hospital-based project at Kapiolani-Children's Medical Center, which investigated how to reduce teenage pregnancies through counseling and educational intervention in the setting of a major obstetrics and gynecology hospital; (2) a community-based network approach on Kauai, which involved the planning, monitoring and evaluating of innovative preventive programs; and (3) a project coordinated with the Hawaii State Department of Education Windward School District, which developed and tested Family Life Education Supplements K-12 for integration into school health curricula. The Central Support Unit and its functions and activities are discussed. Overall project findings are presented which relate to characteristics of pregnant teenagers, networking, and reducing adolescent pregnancy. Recommendations are included for future program planning strategies. (NRB)