UNIVERSITY OF WISCONSIN River Falls
Students must register before attending classes. A student is not to remain in class unless the Registrar has notified the instructor by class roster of his or her admittance. Preliminary class rosters are modified during the semester. The class grade rosters are available online at the end of the semester.
Slash courses are numbered with both undergraduate and graduate numbers (300/500, 400/600.) Freshman and sophomores are not permitted in 300/500 and 400/600 courses. Juniors and seniors are permitted in 300/500 and 400/600 courses. No undergraduate students may enroll in 700-level courses under any circumstances. A sophomore may petition the Dean of Graduate Studies for admission to a 300/500 course, but only under extraordinary circumstances, and with written support of the instructor and adviser.
Source: Faculty and Staff Handbook, Chapter Nine, Section 9.2.6