<p>I forgot to sign up for the June SAT, and I was wondering how the stand-by testing works?</p>
<p>You’ll have to fill out a form (your guidance office might have it; otherwise, call the Collegeboard and they’ll mail it to you - for free) and include some form of payment (credit card number, cheque, etc.)</p>
<p>Then on test day, you take the form and payment to the test centre and let the proctors know you want to do stand-by testing. They’ll put you on some sort of list; it’ll be a first-come-first-serve basis. You’ll want to get to the centre earlier (e.g. if everyone needs to be there by 7:45, aim to be there by about 7:15)</p>