The Macomb County Office of Substance Abuse (MCOSA), a department within MCCMH, is responsible for planning, funding, monitoring and coordinating publicly funded substance use disorder prevention, treatment, and recovery services for Macomb County residents. MCOSA provides an array of resources such as prevention programs, Quality Assurance Activities, provider network training, assistance with credentialing, license review, substance use recipient rights, consumer complaint resolutions and more.