California's @AirResources Board will launch a rule to require medium- & heavy-duty truck manufacturers to sell 0-emission (electric or H2 fuel cell) trucks as an increasing % of their Calif sales from 2024 to 2030 https://t.co/2Omd6COXxw @cleantechnica @NRDC @MaryNicholsCA
— Mark Z. Jacobson (@mzjacobson) October 7, 2019