Preschool Autism Class (PAC) services are designed with a reduced adult to student ratio and provide systematic instruction in a highly structured setting to maximize learning. The program uses Applied Behavior Analysis (ABA) and Verbal Behavior (VB) to foster communication, social skills, appropriate behavior, and development of other skills as designated in the student’s IEP. PAC services are designed to address the specific needs of preschool-age children who have been identified as having Autism Spectrum Disorder or present characteristics on the autism spectrum, and who cannot benefit from the early childhood class based program.