The office of the registrar says the a 3,4, or a 5 will allow you to take a departmental placement exam.
Do any current or former students have any stories on how that worked for them? Must you score a 3 simply to take the exam?
You can take the placement test regardless since even if you get a 5, they still need to evaluate what that means in the context of the language courses offered. When I took it, it combined a series of listening comprehension and brief writing exercises. Best of luck!