<p>I have never heard of them until now. Do all colleges require them?</p>
<p>They are proficiency tests in particular subjects you may have had in high school such as history, literature, and math. Each has a potential maximum score of 800 like each section of the SAT. For info start here: [SAT</a> Subject Tests](<a href=“http://professionals.collegeboard.com/testing/sat-subject]SAT”>College Board Will No Longer Offer SAT Subject Tests or SAT with Essay – College Board Blog)</p>
<p>Majority of colleges neither require nor use SAT subject tests for admission. However, the minority that do require them include most of your high ranked private universities, which require two.</p>
<p>Go here for a list of colleges that require, recommend or consider SAT subject tests: [Compass:</a> Admissions Requirements](<a href=“SAT Subject Test Requirements and Recommendations - Compass Education Group”>SAT Subject Test Requirements and Recommendations - Compass Education Group)</p>