<p>Just a note on some info given above: UChicago does not require any subject tests. It does not even recommend them. It may consider them if submitted and does not care what you submit. Northwestern recommends two and it is the only Illinois college that recommends any. If your desire is to get into UIUC engineering then be aware that it is absolutely pointless to take subject tests for it because it will not even consider them if submitted.</p>
<p>As to the UCs, beginning with those applying for entry into 2012 freshman class, subject tests will no longer be required but two will be recommended and for engineering the only two they want to see if you submit any is math 2 and a science (math 1 will still not be considered at all).</p>
<p>If you meet the two test requirement of a college that requires them by submitting a high math and science, then, for most of those colleges, submitting a third literature test is generally a pointless act; why: because in determining admission most use only the highest two subject test scores and ignore the rest. Two exceptions are Harvard and Princeton, which require two but will consider all that are submitted (including that if you submit a third low score they will consider it against you; fortunately both accept score choice).</p>