California has imposed standards for Zero Emissions Vehicles, or ZEVs. Its ZEV mandate sets up a credit system relating to a requirement that a certain percent of passenger vehicle sales by each automaker be ZEVs.
Many of the comments in response to Danny Westneat’s column about Coltura raised the libertarian argument, which is, in its essence, “Why should the government tell me what fuel I can use? The free market should decide.”