Students who wish to enroll in a graduate or a 100- through 400-level undergraduate course and perform all the assigned work without receiving credit may do so if they secure the advanced approval of their advisers. When they register, they must indicate "not-for-credit" status by entering the symbol N. They must pay the normal graduate tuition fee for the course and fulfill the same requirements as other students during the semester, including the execution of any written assignments. At the end of the semester, however, they do not take the final examination, and they are assigned a grade of S (satisfactory) or U (unsatisfactory). The course and the letter grade are included on the student's record, but no credit toward a degree is given. See Grades and Records later in this chapter for information regarding credit prefixes.