I would suggest going to wrightslaw.com It helps with disabiility laws and can help you find some answers. It all depends on your IEP and why the lashout occurred.
My son is 9 and is high funtioning autistic, I make sure all abide by his IEP because of his violent tendencies, I do know a lot of parents home school but that also is paper work and depends on your state laws. My son use to kick bite scratch pinch hit rip off jewlery, Etc etc... Now because of the behavior management I use and communication boards he has been violent free for 2 years now , useing sensory communnication boards and behavior management. He is touch sensitive so that was included in his IEP. But for your information until he was diagnosed 3 years ago there was no help. He was hard of hearing and was in a Deaf ed class. Once his hearing improved but not his behavior I had to do homework to find out what disability he had , get him tested, at that point all rules changed. And so did our family, for the better.