<p>Actually it is required by UCLA and UC Berkeley. There are some other lower-tier UCs and pre-req-heavy majors that don’t require it.</p>
<p>IGETC does not guarantee you a spot in a UC necessarily. You need to maintain a high GPA. How high also depends on which UC you are aiming for and what major. I think that the most competitive majors are UC Berkeley business admin. and UCLA communications. The average admit GPA for those programs last year was 3.9 and 3.89 respectively.</p>
<p>Lastly, I’m sure that you already pieced this together given what I noted above, but no, you can not enter as an undecided junior. You must declare a major on the application. And hopefully you will have decided on a major well before applying since you need to starting working on completing pre-requisites for the major.</p>