<p>I don’t know the rules for Yale, but something related that might interest you is that very few students at Brown use AP’s for credit, even in the few areas it is allowed. You don’t really need them, hardly anyone wants to graduate early or take less classes. Another thing is that they are not equivalent to the level offered at such colleges. AP Chem for instance, is just considered a prerequisite for the entry level Chem course at Brpwm–if you didn’t have that, you’d have to take a no credit prep class. AP CS couldn’t touch the intro CS courses. Now using your AP Calc BC to make your next class Multivariable calc is fine but wanting credits for it? Why bother?</p>