TEACCH Transition Assessment Profile (TTAP)-Second Edition is a newly titled and major revision of the Adolescent and Adult Psychoeducational Profile (AAPEP). This comprehensive test was developed for adolescents and older children with autism spectrum disorders, particularly those who have transition needs. The TTAP Materials Kit is structured to satisfy those provisions in the Individuals with Disabilities Education Act (IDEA) or 2004, which require adolescents to be evaluated and provided with a transition plan.