Becoming a fishing guide?

I have been fishing all my life. I can't remember a time when I wasn't in, around or on the water. I am coming up on retirement from the Air Force and would love to try my hand at guiding. I know a lot of the waters around my home and there is rarely a day when I go fishing and don't catch what I am after. I am a pretty decent fly-fisherman and have just started dabbling in Saltwater fly fishing, Iraq Deloyment put the kibosh on my summer plans, but I was wondering what I need to do to get started. Any advice?