When it comes to clean cars, states have led the way. Twelve states plus the District of Columbia have adopted California’s more stringent Advanced Clean Cars standards, together representing about 30 percent of the new vehicle sales market. A subset of these states have also adopted California’s ZEV standard.
In October 2013, Governors from eight states signed a Memorandum of Understanding to put 3.3 million zero-emission vehicles on the roads in their states within a dozen years. They followed this announcement with the release in May 2014 of a ZEV Action Plan similar to the plan initiated in California.
Here are some additional resources: