WASHINGTON, DC – APRIL 1: U.S. Secretary of Transportation Pete Buttigieg (R) looks on as White House National Climate Advisor Gina McCarthy speaks during an event about fuel economy standards at the headquarters of the Department of Transportation April 1, 2022 in Washington, DC. The federal government will set 40 miles per gallon as the new mileage standard for vehicles sold in the U.S. starting in 2026, up from the current 24 miles per gallon. (Photo by Drew Angerer/Getty Images)