You must put it in writing that your child be tested ( atleast in my school district) and they should have so many days legally to have his tests completed. My school district never told me this because it cost money to bring in psychologist to test.
Don't let them get away with it as I did many yrs because I didn't know any better. Insist & follow through and always be an advocate for your child because I guarantee no one else will be. Good Luck!