UCSD SIR

I am waiting on waitlist decisions for a couple of other colleges, but as of right now, I have been accepted to UCSD. I will be informed about my decision from the waitlist on the 15th of May, but this is after the deadline to submit my SIR at UCSD. Is my statement of intent to register binding? As in, can I submit it even if I might choose to attend a different university?

SIR is not binding. If you change your mind, you will just lose your enrollment deposit if you withdraw.