Australia doesn't use America's building codes. Australia has its own. And their "Australian chapter" is the Australian Institute of Building Surveyors (AIBS) – which it is worth noting is not the Australian body which develops Australian building codes – that's the Australian Building Codes' Board (ABCB). The AIBS is the professional body for building surveyors, and as such while its members have some role in enforcing those codes, it doesn't develop them itself–although they are able to provide input to the ABCB's public consultations (same as any other organisation is.)

I don't know what the actual point of having the AIBS as a chapter of the ICC is. Probably an excuse for some overseas business trips.

Good to know, but that’s probably moving the goal posts a bit. This looks like a private industry group set up to proactively influence adopted standards (ie: a lobby) and does so internationally.

At least in the US it’s fairly common for lobbies to offer prewritten codes in the hopes that the adopted codes are (at least pretty close) to the ones they want.

You could argue whether such a practices are how private industry and governmental regulations should interact, but it doesn’t seem like the term “international” is particularly problematic in the name. The “World Series” (of baseball) on the other hand...

> This looks like a private industry group set up to proactively influence adopted standards (ie: a lobby) and does so internationally.

Who are you saying is lobbying who here? Are you saying AIBS is lobbying the ICC? Or that the ICC is lobbying the AIBS?

I don't see why the AIBS would engage in lobbying about the contents of US building codes. What difference does it make to building surveyors in Australia what building codes in the US say?

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.