STUART SMITH (National—Kaikōura): Thank you, Madam Chair. In the first reading speech, I mentioned concern about whether this was a tax or not. I actually asked officials for advice; never really got a satisfactory answer. I would really like to know if the Minister has had advice, or sought advice—any advice at all—on whether this is actually a tax or not. If it is a tax or could be construed as a tax—I know it's a bit pointy-headed, but it could be—then Parliament must set the tax. By yourself, the Minister of Climate Change, the Minister of Finance, and the auction monitor setting the methodology, which doesn't directly set the price but it actually is linked to the secondary market price—so it does, effectively, set a price, if that is a tax—then constitutionally it should be Parliament that sets that, and what this bill does would usurp that right. I think it's actually quite an important issue to get ticked off at this stage, one way or the other—and I see someone's rushed out the back to get something, whether it's just a pen to write down or some statute book to look through. 