"By 2025, 15 percent of the new cars and small trucks sold each year in California would have to be powered by batteries, fuel cells or some other technology that produces little or no air pollution under rules that state regulators will propose next month.
The rules, from the California Air Resources Board, would force automakers to sell an increasing number of electric cars and plug-in hybrids in the state beginning in 2018.
California has tried to impose similar mandates in the past, without success. Starting in 1990, the Air Resources Board required carmakers to ensure that 10 percent of the vehicles for sale in the state by the year 2003 produce zero tailpipe emissions. Automakers sued, and the board backed off, concluding that electric vehicle technology wasn't ready for the mass market.
Now it is, board officials say.
~snip~
The board plans to introduce its proposed rules on Dec. 7 and could vote on them as early as January."
http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2011/11/15/BUC91LVJ7C.DTLnote: the CARB has previously been found guilty of killing the electric car.