 is making ZEV credits or even CO2 credits tradable among manufacturers. If a manufacturer has difficulty meeting its CO2 targets, it could buy credits from a zero emission vehicle only manufacturer and that would actually make the laggards pay the frontrunners. So it's a very good system of making sure that first of all you don't want to be a laggard, but secondly that the frontrunners are rewarded for being a frontrunner. So a simple way to do that, you don't need