It is exciting. You talked about the amount of emissions that each truck will take off our climate on an annual basis, as well. It's interesting, however, that the exemptions that we're looking for are actually tied to U.S. regulators. We don't have anything here in Canada to actually approve a product of yours, which is basically off-the-shelf technology. I mean, we're not talking about anything that needs extraordinary new regulations or legislation. It's all there. It's just that the whole thing put together hasn't been considered yet as a whole. Can you expand on the connection to U.S. approval?
