This report describes the legal and scientific basis for an inclusive versus segregated education, summarizes national patterns for educating students with disabilities in general education classes, examines federal and state guidance, and state compliance with federal mandates, describes effective educational practices for reducing segregation, and provides findings and recommendations for improvement. It is part of the Individuals with Disabilities Education Act Report Series (5 Report Briefs), National Council on Disability, February 7, 2018.