California’s Air Resources Board has voted to reduce the number of zero-emissions vehicles required to be sold in the state by 2014 from 25,000 to 7,500. It’s a hefty reduction, though less dramatic than the recommendation by CARB staff that the requirement be cut to 2,500 vehicles. Not-quite-zero-but-still-relatively-less-emissions vehicles, like plug-in hybrids, will make up the rest of the quotient, the board decided.