My wife teaches integrated special education in Northern Connecticut. Recommends looking for a school system that offers public PreK to ensure your child gets started with services. Most districts will host an initial PPT and then propose additional testing as needed. For students with autism the VBMAPP program is often implemented and highly effective in creating meaningful progress. Occupational therapy, physical therapy, and speech and language services can all be provided within the school day with peer and teacher modeling to positively impact social behaviors. You also have the right to request a PPT at any time if you feel additional support is needed. Best wishes to you and your family!!