Each student is responsible for completion of all requirements of his or her program. Advisors simply provide guidance. Any exception to a published program of study is not valid unless specifically authorized in writing by the dean of the college in which the major is housed. Courses numbered 6000 and above are open only to students admitted for graduate study. At least half of the courses in the program of study of each degree candidate must be chosen from such courses. Students should consult with their academic departments for specific program requirements. Courses with 4000/5000 numbers are for undergraduates or graduates; graduate students, however, are expected to do more extensive reading, prepare additional reports, and produce papers or other projects requiring more intensive research.