<p>You look on the CB site and it says how many you need. Your best bet is to visit the school’s website, however for weird exceptions like the UC’s policy. I can’t think of any schools that only require only one test and I can only think of two colleges that require three: Harvard and Princeton, so make sure you take at least two in different areas. </p>
<p>For UCB, make sure that you take two tests in different areas. In other words don’t take Chem and Bio (two sciences)- instead, take Bio and Math II.</p>
<p>Websites for you:
UPenn
<a href=“http://www.admissionsug.upenn.edu/applying/testing.php[/url]”>http://www.admissionsug.upenn.edu/applying/testing.php</a></p>
<p>Stanford
<a href=“http://www.stanford.edu/dept/uga/applying/1_2e4_standardizedtest.html[/url]”>http://www.stanford.edu/dept/uga/applying/1_2e4_standardizedtest.html</a></p>
<p>UC Berkeley
<a href=“http://www.universityofcalifornia.edu/admissions/undergrad_adm/paths_to_adm/freshman/examination_reqs.html[/url]”>http://www.universityofcalifornia.edu/admissions/undergrad_adm/paths_to_adm/freshman/examination_reqs.html</a></p>