This summary reports the interim results of the Office of Juvenile Justice and Delinquency Prevention's (OJJDP) research and development initiative to assess, test, and disseminate information on IAP models that are theory driven and based on risk assessment. The models are for serious, violent, and chronic juvenile offenders who initially require secure confinement. The research and development work on which this summary is based involved public and private sector input across the country at the State and local levels. Major dimensions of the model emerged from a literature review, a mail survey which generated 36 recommended programs and resulted in telephone interviews, and information provided by policymakers, administrators, practitioners, researchers, and youth corrections professionals. Based on the information received, a program typology was developed reflecting three possible models of supervision and service delivery. Site-visit fact-finding also was conducted. A discussion of the IAP model developed as a result of the aforementioned activities is provided. Based on expressed interest, eight jurisdictions were selected for training in adapting, implementing, and managing pilot IAP programs modeled on the prototype. The authors recommend a shift in focus in juvenile aftercare to the basic structures, procedures, and goals that define how more severely delinquent youths are handled at the points of correctional confinement and transition back into the community. References