So section 177 creates, at subsection (2), the charges from 1 January 2023—and this is for light vehicle importers. It will be $22.50 per gram of carbon dioxide in excess, multiplied by the number of used vehicles in the fleet, and $45 per gram of carbon dioxide in excess, multiplied by the number of new vehicles in the fleet. Then, from January 2025, it bumps up to $33.75, and then $67.50. So my first question is to the Minister: why and how were those figures determined? What was the rationale? What was the reasoning? What was the mathematics? What was the science, if you like, behind the selection of those very precise dollar amounts? And in a time when we have now rapid—some would say out of control—inflation and increasing concerns about the cost of living, is it appropriate and wise, in this legislation that has a limited time frame—and we accept that on this side of the House—to actually set the fees in the statute? Because changing them, if it's necessary, either up or down, will, I think, as I understand it, then require a change of legislation by way of amendment to be brought back through the House, to go through a process again. And that seems to me, on the face of it, to be something of a cumbersome exercise when, maybe, it could be that the dollar figures that are set out and calculated in both sections 182 and 177 could be achieved a different way.