SEIT/ABA ATC provides Special Education Itinerant Teachers services, for children in NYC & Rockland and Westchester Counties. Learn more about S.E.I.T. Preschool Services ATC Preschool program provides therapeutic services through CPSE. for children with developmental disabilities. More about Preschool Services Early Intervention ATC Early Intervention program Provides Home & Community based services that focus on various types of services for children ages 0 to 3 years old. Learn more about Early Intervention.