The Trump administration has finalized new fuel economy standards for cars and trucks through 2031, replacing the Biden-era rules that required automakers to build more electric vehicles. The new standards set a fleetwide average of 34.5 miles per gallon by 2031, down from 50.4 mpg under the previous rules. The administration estimates this will cut the average cost of a new vehicle by $930, but the Transportation Department also projects higher fuel consumption and emissions: about 100 billion extra gallons of fuel, $185 billion in added fuel spending, and a 5% increase in carbon dioxide emissions through 2050. The reversal ends the federal push for EVs as the primary compliance path. Automakers will now have more flexibility to meet CAFE with conventional engines, which could slow the transition to electric vehicles in the near term. However, state-level EV mandates and California's waiver will still force significant EV adoption in key markets. For those tracking grid impact, slower EV uptake could reduce near-term load growth and storage demand, while prolonging reliance on gasoline and related emissions.
