COURSE NUMBERING SYSTEM An explanation of the first digit of the four-digit course numbering system follows. The meaning of the second, third, and fourth digits varies by department. See “Year Classification of Students” in the “Undergraduate Degree Requirements and Regulations” section of this catalog for an explanation of the criteria for classification as a freshman, sophomore, etc. 0001-0999 • Offered by the University to strengthen students’ facility in certain basic skills; not for degree credit. 1000-1999 • For undergraduate students, primarily freshmen; for undergraduate credit only. Ordinarily open to all students; in some instances upper-division students may not take these courses for degree credit. 2000-2999 • For undergraduate students, sophomore level or above; for undergraduate credit only. 3000-3999 • For advanced undergraduate students, junior- and senior-level; for undergraduate credit only. These courses constitute the advanced portion of an undergraduate program leading to the bachelor's degree. A student with fewer than 60 hours of credit may enroll in 3000-level courses if they meet the enrollment requirements of the college whose departments offer the courses. 4000-4999 • For advanced undergraduate students (who have completed a minimum of 60 semester hours) and students in graduate and professional schools and colleges; for undergraduate or graduate credit. Undergraduates with 30 or more semester hours who are making timely progress toward a degree may be admitted to 4000-level courses. Such students must have a 3.50 gpa or higher, the appropriate prerequisites, consent of the instructor, and permission of the dean of the student's undergraduate college. 5000-5999 • For students in postbaccalaureate professional programs (architecture, law, and veterinary medicine). A student in the Graduate School may take these courses for credit with approval of the student's major department. 6000-6999 • Exclusively for teachers at the elementary, secondary, and junior college levels. 7000-7999 • For students in the Graduate School; for graduate credit only except as follows. Undergraduates with 75 or more semester hours who are making timely progress toward a degree may be admitted to 7000-level courses. Such students must have a 3.50 or higher gpa, the appropriate prerequisites, consent of the instructor, and permission of the dean of the student's undergraduate college. Credit so earned will apply only toward undergraduate degree requirements, except for students enrolled in an accelerated master's degree program 8000-8999 • Research courses exclusively for graduate students, primarily for students working toward the master's degree; for graduate credit only. The number 8000 designates thesis research. 9000-9999 • Research courses exclusively for graduate students, primarily for advanced graduate students working toward the doctoral degree; for graduate credit only. The number 9000 designates dissertation research.