The document provides an overview of autism as defined by the Individuals with Disabilities Education Act (IDEA). It discusses how IDEA qualifies children ages 3-21 for special education services if they meet criteria for one of 13 disabilities including autism. Autism adversely affects verbal/nonverbal communication and social interaction, and is generally evident before age 3. The document also outlines the diagnostic process for autism and common characteristics, behaviors, interventions and individual learning needs for students with autism.