College entrance exams are standardized tests used in admissions. The two main ones in the United States are the SAT and the ACT. Some schools also accept the CLT, a newer alternative.
The SAT is run by the College Board. Since March 2024 it has been a digital test, taken on a computer and lasting about two hours and fourteen minutes. It has two sections, Reading and Writing and Math, and scores run from 400 to 1600.
The ACT is run by ACT, Inc. It covers English, math, reading, and science, with an optional writing section. Like the SAT, it is scored on a fixed scale and used to compare applicants from different schools.
Test-optional policies have changed the picture. Many colleges no longer require scores at all, and strong grades, essays, and activities can carry an application. Check each school’s policy before you decide whether to test.
If you do take an exam, prepare with a plan. Take a practice test to find your weak spots, study those areas, and take another practice test under timed conditions. Register early so you get your preferred date and location. For focused help, see study strategies for standardized admission tests, the essentials of the ACT, and top strategies for the college admission process.

