GPN students are required to participate in laboratory rotations during their first year in graduate study. Past experience suggests that many students change their interests based on classes, lab rotations, seminars, etc. that are experienced during their first two semesters. For this reason we encourage most students to enter a lab the summer after they finish their first two semesters of coursework. Students can, however, petition the Graduate Education Committee if there is a unique case where they would like to form an agreement with a faculty member before entering the program, however, this does not mean that they are not required to carry out laboratory rotations. Often this situation occurs for international students and students who have already had extensive laboratory experience during previous graduate study as a Master’s student.