With today?s software programs, managing 10,000 climbers wouldn?t be beyond any organization?s capability. Plus they would be paid for the extra staffing required from what I hope would be a nominal cost for the license. The dilemma I see is the enforcement. There are a lot of one and two man shops out there. So the one guy goes out and violates every safety rule imaginable. Who is going to even know it? If a tower owner sees a couple of guys not practicing safe climbing, do you think he is going to get involved in a he said she said dispute? If NATE were to do this how would they enforce it? To my best knowledge they don?t enforce safety compliance with their own members. I'm hoping that someone comes up with what the qualifications would be to become licensed.