SUU can accept ACT/SAT scores to determine math and English placement. If you do not have ACT/SAT scores, or your math scores are more than two years old, you will need to take the Accuplacer test(s). More information can be found at the Testing Center website.
Math scores expire after two years. This includes ACT scores, SAT scores, Accuplacer scores, and previous math courses (to count as prerequisites; the courses themselves to not expire). English scores do not expire.