The Iowa Expert_Manual is an online resource developed by the Iowa Department of Human Services to provide guidance and direction to professionals and organizations providing services to Iowans in need. It offers a comprehensive library of information and resources to help service providers assist individuals with mental health, substance use, and disability services. The Iowa Expert_Manual contains resources to help professionals offer quality services to individuals and families in need of assistance. It includes policy guidance, regulatory information, program information, and other resources to help providers deliver the best service possible. There are three different types of Iowa Expert_Manuals: the Core Manual, the Substance Use Manual, and the Intellectual Disability Manual. The Core Manual includes general guidance and information about human service topics, while the other two manuals are specific to substance use and intellectual disability services. Each manual contains information about regulations, policies, and other resources to help providers better serve the individuals and families they serve.