Last week, the California Air Resources Board (CARB) finalized a rule that will outlaw the sale of gas-fueled cars by 2035. The plan is phased in requiring the auto fleet to be no more than 65 percent gasoline powered cars by 2026 and no more than 32 percent by 2030 before the 2035 ban. This plan, when and if fully implemented, would have an enormous impact on ethanol demand. Under the federal Clean Air Act (CAA), this has the ultimate potential to spread among states and reduce up to 44.545 billion gallons of motor gasoline demand, or more than 32 percent of the total national gasoline use, and impact about 37 percent of all new automobile and light truck sales. Assuming this lost motor gasoline was all to be blended at E10, the impact on...