The Formula D license is FD's way of weeding out the bad and opening up for the good. If you got no points in FD last year or are trying to debut in FD, you have to try out for a license. License events will be held separately from FD events. Currently there are only 4 events listed but none are open to registration yet (odd). They will be mini competitions but the winners are not guaranteed licenses...the judges still have the final say as to which and how many drivers get a license.
There are also the instances where one is not required to compete to achieve a license. Lets say you are...steve millen and want in, they'll let you run. I'm sure there are other ways in if you know the right people and suck the right c0cks too.