But if something doesn't fit that criteria, then the Governor-General, by Order in Council—which really means "the Minister"—can override all of those judgments and say that something is a building material after all. Logically, the second method of becoming a building material—having the Governor-General determine that something is a building material—could only be relevant if there was a will to define something as a building material that, according to all of the other considerations listed in the Act, wasn't a building material. So something is a building material unless it's not, but if it's not, the Governor-General can still say that it is, and one has to ask what sort of criteria would be used in the Order in Council to decide that something was a building material, other than the definition that's in the law. 