<p>If you’re sure that you don’t want to do engineering then the earliest you could change might be during orientation, but if that doesn’t work try early in the fall quarter or beginning of winter quarter. The form looks like it needs a signature or two so you may have to wait until the school year starts. It shouldn’t be a problem if you’re not able to switch by fall quarter, just take classes that will count for the major you want to go into, or some GEs.</p>