I'm not going to answer that question. I will make the comment, though, that the WTO has a set of rules, as does CETA, NAFTA, the TPP. Under the WTO there are provisions that allow a country to introduce a new tariff code. Under the regional agreements—NAFTA, CETA, TPP, when they come into force—there are no such provisions, so you're absolutely right.
Caroline wants to make a comment as well.