Lege Trend. All Self Driving Cars Must Be Zero Emissions. Also Known As–Can a Snail Move Faster than Zero Emission Cars?

Why does California need all self driving cars to be zero emissions?  California must cut greenhouse gases 40% by 2030

A handy side effect of a bill like this? to help the zero emmission car industry, whose sales have flatlined at 3% of market share in California 

Is this just  a California thing? No, Massachusettes is proposing the same

The Recorder | Calif. Lawmaker Pushes Zero-Emission Driverless Vehicles

Caliornia SB 802 (2017)