how does spring rush work??

Ok I've been wanting to do spring rush but I can't find any information about the dates!! No one answers my emails or phone calls omggg it's been such a struggle trying to figure this all out. Idk if there's like a certain dress code for everyday that you visit houses (like fall recruitment) or if I just walk in the houses?? I honestly have no idea. If any of you know about how it works, please share! Thank you all :)