100-199 courses are generally designed for freshmen but may be appropriate for sophomores, usually an introductory, survey, or first course taught in a sequence within a specific discipline.
200-299 courses generally designed for sophomores but may be appropriate for freshmen, usually advancing in a progression as a second course which may require previous knowledge or training.
300-399 courses generally designed for juniors and seniors, but may also be appropriate for some sophomores. Prerequisites are very often required at this course level.
400-499 courses generally designed for juniors and seniors, and represents upper division work with a prerequisite knowledge base required.
500-599 courses are considered graduate courses, but may be designed for graduate students and highly motivated undergraduate students. This level of course work is open to juniors and seniors in good academic standing (cumulative grade point average of 2.0).
Seniors may take 500-level courses for graduate credit in their final semester of undergraduate study, and must request permission to register to obtain graduate credit. Approval must be obtained from the school associate dean for the student's major before the start of the semester in which the course is being taken. Students are cautioned that graduate credits thus earned may not be transferred toward meeting the requirements for the master's degree at another institution.
600-699 courses are designed exclusively for the graduate level for graduate students only.