Not mandating - Texchat
Unlike the travel provision, pooling avoids the double-counting issue, and still requires that an actual vehicle is produced and sold before credit is rewarded and transferred.
Automakers earn credits by selling zero emission cars and trucks.
As of October 2015, manufacturers had banked over 240,000 BEV/FCEV credits and 94,000 PHEV credits, enough to comply through 2021, even if ZEV sales remained at the relatively low current rate of 3 percent.
Assuming the same rate of credit accumulation, there will be over 300,000 BEV/FCEV and about 175,000 PHEV credits in manufacturers' credit banks at the start of the 2018 ZEV regulation.
The Zero Emission Vehicle (ZEV) program is a California state regulation that requires automakers to sell electric cars and trucks in California and 9 other states.
The exact number of vehicles is linked to the automaker’s overall sales within the state.
The credit per vehicle varies with drivetrain type and electric range.
From 2018 onwards, plug-in hybrids—which only partially drive on electricity—receive between 0.4 and 1.3 credits per vehicle sold.Battery electric and fuel cell vehicles receive between 1 and 4 credits, based on range.For example: the Tesla Model S, which boasts a range of more than 200 miles, is eligible for 3.3 credits, while the 84-mile range Nissan Leaf is credited at 1.8 ZEV credits per car sold.The provision has also created an incentive to concentrate sales of battery electric and fuel cell vehicles in California.However, in 2018 the travel provision will be removed, except for fuel cell vehicles.The credit requirement rises to 22 percent in 2025, which will require about 8 percent of sales to be ZEVs.