Bob,
You do not have to "qualify" for the State Tournament like ASA requires you to do. The only thing that shooting all the previous "Regionals" does is get you qualified for the "All Region" competition, which is a separate thing from the State Tournament. That being said Dena is correct in the fact that you must be a member before you begin shooting at the State Tournament to be able to place in the tournament and receive awards. If a non-member wished to shoot they are more than welcome, but unless they sign up for membership before the tournament they will not be eligible for an "official" place or award.
I hope I didn't confuse you anymore
-Brandon