While this is not true in all cases, often when you view a seminar on OCI, it will say “Permission of instructor required.” If you have any doubts, please contact the DUS Assistant (undergrad.polisci@yale.edu). You can also find a list of the current semester’s courses here: http//politicalscience.yale.edu/academics/undergraduate-program/course-info-program. Scroll to the bottom of the page where you will find the appropriate link. This list indicates which courses are lectures and which are seminars.