Do you need DOT SAP Providers? In order to be reinstated, the majority of drivers in the US must successfully complete a Substance Abuse Program (SAP). The Substance Abuse Program is a collection of workshops and courses created to assist those who struggle with drug and alcohol addiction. The Substance Abuse Program is a collection of workshops and courses created to assist those who struggle with drug and alcohol addiction. A program called the Substance Abuse Program (SAP) assists those who