Now, these two policies, when we looked into it and we said, "What's the most effective way we could start to influence the vehicles coming into New Zealand?" not to just cut off all high emissions vehicles but to offer people more choice and to provide price incentives that are fair—these two policies had the evidence behind them because they've been implemented in almost every developed country and successful economy. Places like California have had strict vehicle emissions standards and it actually results in benefits to the economy. And I know that's really hard for National to get their head around, because they don't understand the economy very well, but the truth is that if you go look at the evidence—and I'm sure we'll hear from it; we'll hear from the experts at the select committee—this is the single most effective way, literally the only way, we're going to start influencing the makeup of the fleet.