The difficulty with this is that people already face enormous difficulty with confusion caused by regulation, and I know that people who look at this are going to say, "Well, how do you actually know whether something is a building product or not?", because if it's normally expected to be a building material, well, that sounds sensible. Then there's a list of things that might form your expectation. Then it goes on to say, "But it's not just those things. It might be something else.", and then it goes on to say, "Actually, forget all of that. A Minister can just decide that something's a building material.", but it's not clear why the Minister would want to do that if something wasn't already a building material according to the first set of criteria. 