Originally Posted by NorfolkSouthern

That is the whole issue. No, the FAA doesn't require actual CBO membership. But on the other hand, the AMA can deny participation in the CBO to non-members. Thus, those non-members, since they would not be participating in the CBO, would be outside of Part 101 and would have no other option than to acquire a Part 107 license. That's what I gather from the FAA.

So.. If the AMA doesn't consider a non-member as a CBO participant, and and that person can't get vetted by the TSA for some reason, or can't pass the Part 107 test, or make it to the facility to take the test for that matter, then it appears the best option may be control-line flying.