CARB Eyes Tightening ZEV Truck Mandate, Speeding Fleet Purchase Rule

California air regulators appear likely to tighten a proposed landmark regulation requiring medium- and heavy-duty truck makers to sell zero-emission models beginning in 2024 by targeting certain sectors for earlier action, while also speeding adoption of a related rule requiring fleets to purchase a minimum number of zero-emission vehicles (ZEVs). Industry is even supporting some steps to tighten the plan, with one representative of truck makers suggesting that certain sectors such as school buses, airport vehicles and garbage trucks could...