Here’s a list of application tasks that college-bound high school students should pencil into their calendars for the spring semester of their junior year and the fall semester of their senior year: The SAT and ACT: The spring of your junior year is an excellent time to take the SAT Reasoning Test or the ACT. You’ll get your scores in plenty of time to use them in your college selection. If your scores match those of students who were recently admitted to your target schools, you can rest easy and turn your attention to other application tasks.