You seem like you have a more detailed picture of the ground truth here, but that part you’ve basically said yourself (and I agree with, under the disclaimer that I found an “About” page and that’s the end of my knowledge):

AIBS appears to be a member of the ICC. The ICC appears to be an international lobby. In that context, AIBS (probably) lobbies the ABCB with some help from the ICC as do other chapter members their own respective government representatives or regulatory bodies. Or maybe they just enjoy the ICC newsletter emails. I was only pointing out that international here is not an really a presumptuous “the US is the world” misnomer.