I took a " safe hunter" course when I was in the Boy Scouts back in 1971. It was NRA sponsored. When Oklahoma started having Hunter Safety courses, I was old enough not to need it, but my other course was accepted as having passed it. Kind of funny, they had me on file before I ever checked on it. I' m an instructor now and have a blast teaching all ages. If you were born prior to 1977, you don' t have to have the certification to hunt in Oklahoma. But I still have adults in my classes because they can use it for elk hunting in Colorado. It' s also recognized in all 50 states. There' s three ways to take our course. One, non-stop, 10 hour day. Or three classes that last 3 hrs and 20 minutes. Or part of it on-line, with some classroom. I haven' t done one of those yet. Most of the classes I teach have adults, teens, and pre-teens all taking the course. You' d be surprised how many kids outscore the adults. " hard to teach an old dog the right tricks" LOL