Introduction to the Illinois Department of Human Services, Division of Substance Use Prevention and Recovery (IDHS-SUPR) is an online course designed for substance use services providers and others seeking more information about substance use disorder (SUD) treatment, intervention, and recovery support services in Illinois. During the course, participants will learn about the structure, roles, and responsibilities of SUPR; the Substance Use Disorder Act; Illinois Administrative Code - Part 2060; communication with SUPR; funding sources and requirements; and training and technical assistance.