5000 level Business courses may be taken only by M.B.A. graduate students. Courses at the 3000 and 4000 level, which are identified by an asterisk in the class schedule, are dual enrollment courses open to most graduate and upper-division undergraduate students. The courses may be used to meet requirements of a graduate degree if part of an approved program. The student must indicate at the time of enrollment if s/he wants a course for graduate credit. Members of the faculty differentiate between the work of graduate and undergraduate students in 3000 and 4000 level courses. Courses completed for undergraduate credit may not be repeated for graduate credit nor can the same class count toward undergraduate and graduate requirements.