<p>Does anyone know where I can find my USC ID number that i need to put on the top right corner of the app?-thank you.</p>
<p>you have to call the number. it should be printed somewhere in the application</p>
<p>You should also find your ID number on any bit of mail (right under your name) USC has sent you -- the Admissions Office there is so incredibly efficient!</p>
<p>but if you haven't got one, than don't worry, its optional.</p>
<p>If you don't have one, just put in your social security number. that's what i did... (they also changed my ID number 3 times so ID numbers are kind of useless..)</p>