Applicants whose preparatory courses do not meet the formal requirement of 16 specified units, but who show promise, may qualify for admission by examination. Those with a GED, and prospective candidates who have not completed high school or who have a diploma from a nonaccredited high school, may apply for admission by examination. Such candidates must take three Achievement Tests of the College Board, as well as the SAT or ACT required of all candidates. The achievement tests required are English, mathematics, and a science (either biology or chemistry).