SAT Test dates and SAT Subject Test dates for October, November and December are open for registration now! Please know that most colleges require your SAT (and/or ACT) test scores by December of your senior year of high school. (While some colleges also require the SAT Subject Test the UC’s and CSU’s do not except for in certain majors where it may be recommended.) It is best to take the SAT Test more than once as you have a chance of doing better in at least one of the test categories. Your best scores from each test and each category are sent to colleges.