Treating minority substance abusers at risk of HIV or HIV positive is a critical public health issue. Delaware has achieved success in treating this population through its integrated nested services approach. Through three Center for Substance Abuse funded projects, Delaware has synthesized a number of evidence-based and best practices from the HIV medical treatment, substance abuse treatment and mental health treatment. Evaluation findings show that Project HOPE and Meeting the Challenges are having a positive impact on clients in a number of areas, including medical compliance, physical health, sobriety, employment/income and living situations. Clearly, this approach benefits all stakeholders, including the State of Delaware, local communities, staff and clients.