<p>That is around 60 units, according to [L&S</a> AP credit policies<a href=“other%20colleges%20may%20differ”>/url</a>. Many are only worth elective units, but the above list of AP courses with 5 scores does fulfill AH&I, L&S R&C A and B, L&S QR, and L&S foreign language requirements.</p>
<p>It is theoretically possible to graduate in two years if the major does not have a very high number of required courses.</p>
<p>For example, a [url=<a href=“http://sis.berkeley.edu/catalog/gcc_view_req?p_dept_cd=MATH]math”>http://sis.berkeley.edu/catalog/gcc_view_req?p_dept_cd=MATH]math</a> major](<a href=“http://ls-advise.berkeley.edu/faq/ap.html]L&S”>http://ls-advise.berkeley.edu/faq/ap.html) would have to take 3 lower division (53, 54, and 55, all in the first semester; assuming the AP credit for 1A and 1B) and 8 upper division math courses, and 5 to 7 courses for the [L&S</a> Seven Course Breath Requirement](<a href=“http://ls-advise.berkeley.edu/requirements/breadth7.html]L&S”>http://ls-advise.berkeley.edu/requirements/breadth7.html), with enough courses to include 60 units in L&S, with 36 units in upper division courses (including 6 upper division units outside of math) and at least one American Cultures course. Those 16 to 18 courses with the needed number of units would be a tight fit, but doable without too much of an overload (4 to 5 courses per semester).</p>
<p>Some other majors which have fewer than 11 major requirement courses and no long chains of prerequisities (assuming the above AP tests with 5 scores) may be even more doable.</p>
<p>On the other hand, I would echo a previous poster and suggest not rushing, unless there is a really good reason (e.g. finances are tight). An extra year could give a chance to sample other interesting courses, both in and out of major. Also, a schedule plan to graduate in two years may depend a lot on when courses are offered and whether you are able to get into them; not finding a course offered at the right time might prevent graduating in two years on such a tight schedule.</p>