<p>If I enter USC’s engineering school, and then decide I want to major in a letters and science major, what would I have to do?</p>
<p>That’s not a problem at all. Once you are in USC, if you want to be in CLAS, it’s just a matter of paperwork. It’s more difficult to go the other way because you would have to apply and be accepted to Viterbi (engineering.)</p>