Fafsa and Css Profile are required for financial need. I'm assuming if the school is need-blind, you ARE NOT REQUIRED to send them in. If you don't send them in, you get not financial need. So if you need no financial aid (including loans), then don't worry about them. However, if you're international and the school is not need-blind for them, or if it's not need-blind at all, you might need to fill them out to be accepted.