The number of credits appearing on course records and registration cards may be preceded by a letter prefix as follows:
E. Course excluded from credit toward a degree; all course requirements must be completed and a regular grade is assigned.
G. A 300- or 400-level undergraduate course for which credit toward the graduate degree sought has been approved.
N. Course taken "not-for-credit." The final examination is not required. A final grade of S (satisfactory) or U (unsatisfactory) is assigned. Graduate students registering for undergraduate courses are subject to the credit prefix rules of the undergraduate division offering the course.