<p>You have to take all of the classes required for each major as though you were only completing that major. But if some of the required courses overlap, you can count them toward both degrees.</p>
<p>This is actually significantly easier than it used to be (get off my lawn, etc.), when you had to take the requirements for both degrees, plus 270 units outside the GIRs. But you also used to graduate with two physical degrees, which was baller.</p>