CC During Summer

<p>I'm a first year IEOR major in the college of engineering and was wondering if we are allowed to take lower division classes such as Chemistry 1A at my local community college back home? I know that you can't fulfill the A/B of humanities at a cc but what about technicals such as chem and physics?
what is the advantage and disadvantage to taking it at a cc versus taking it over the summer at cal?</p>