ISP's goal is to provide a cost-effective sentencing option that satisfies punishment, public safety, and treatment objectives. Objectives include surveillance and control strategies matched to the risk and needs of offenders; expanded treatment resources; and requirements for offender employment, community service, restitution, and abstinence from drugs. Critical program elements are offender needs assessment to determine suitability for ISP; political, organizational, and community support; a program design statement; client selection criteria; the length of the supervision period; program-completion criteria; and revocation policy. Other program elements are job classification, staff training, the supervision method, monitoring, and evaluation design. The implementation steps focus on establishing the need for the program and gaining the support of actors affected by the program. Reviews of ISP programs in Georgia, New York, Texas, and New Jersey note program structure, activities, and effectiveness. The program performance indicators summarized pertain to the target population, program performance, outcome, and cost. Sources for further information and assistance and 43-item bibliography.