High school transition programs(for students age 18-21) vary greatly from county to county. Some county DD programs partner with the school district, DVR and others with the goal of helping students to leave school with a job and make a seamless transition into adult life.
Some counties, however, do not have alternative sources of funding to provide this type of wraparound services (beyond what DVR offers). Ask your school district what kinds of activities and support its transition program offers. Contact your local Parent-to-Parent or PAVE office.