[http://www.samuelcyprial.com.ng/2017/09/california-considers-banning-internal.html]
The ban on internal-combustion engine automobiles would be at least 10 years away, and it's unclear at this early stage if it would ban only sales and use of new cars, or ban existing cars as well. There's also no mention of two (or three) wheeled vehicles at this stage.

California’s chief air-pollution regulator said this week the state is considering a ban on cars fueled by internal-combustion engines.


While the ban would be at least a decade away, Mary Nichols, the chairwoman of the California Air Resources Board, said putting California motorists in an all-electric fleet would help the state meet its ambitious targets for reducing greenhouse gas emissions. Tailpipes generate more than one-third of all greenhouse gases, according to state data, and so far only a small fraction of California’s motorists drive electric vehicles.[/http://www.samuelcyprial.com.ng/2017/09/california-considers-banning-internal.html]