Can a special ed child be turned away from school if he does not have on his uniform shirt?

Sure, the child is only 'special' in regard to his needs. Otherwise he got to play by the same rules everyone else does. Presumably the responsibility for insuring that any child special ed or not complies with a school's uniform policy lies with the child's parents or guardian. Why would there be an exception because the child requires special education? It would be the same if the special ed child brought a gun to school. His special butt would get suspended just like any other student I suppose if the child had the uniform on but like took it off and ate it or something that might be on the school and not something to suspend him for.