I would guess the answer may be different depending what state you are in. In PA (I believe it's statewide and not just our district), if a parent requests testing for gifted services, the school must start the process. In our district, once a parent requests the testing and fills out some basic paperwork, the school's gifted coordinator performs a preliminary screening (KBIT and TOMAGS) and the results of those screenings -- with some parent/teacher input - determines whether the child then sits for the WISC-IV with a district-wide psychologist.