Each course bears a distinguishing number for identification and indication of its academic level. The numbering system is as follows:
100-199 Lower-division undergraduate courses, primarily for freshmen and sophomores.
200-299 Upper-division undergraduate courses, primarily for juniors and seniors. A student normally should have completed at least 45 semesters hours before enrolling in a course at this level at the time of registration.
300-399 Advanced undergraduate courses. Open to juniors, seniors, and sometimes graduate students. A student normally should have completed at least 75 semesters hours before enrolling in a course at this level.
400-499 Advanced undergraduate courses. Open to juniors, seniors, and sometimes graduate students. A student normally should have completed at least 75 semesters hours before enrolling in a course at this level.