The Autism Spectrum Disorder (ASD) Diagnostic & Intervention Program will provide critical autism diagnostic services to underserved populations in Randolph, Walpole, Fall River, West Roxbury, and West Springfield; parent training on ASD and counseling for families of newly diagnosed children; vital applied behavior analysis home-based services to families of children ages 0-5 with ASD; school consultation services for children and adolescents with ASD; and transitional/vocational/life skills development services for late adolescents ages 17-22 with ASD.