Ethanol Groups Challenge Fuel Economy Formula In EPA’s Auto Rule

Several ethanol groups are challenging EPA’s update to test-fuel requirements, adopted alongside the agency’s final passenger vehicle emissions rulemaking, claiming that a revised fuel economy calculation to account for the test fuel unlawfully boosts the stringency of fuel economy standards. The April 26 petition for review , Texas Corn Producers et al., v. Michael Regan , filed in the U.S. Court of Appeals for the 5th Circuit, is separate from broader litigation in the D.C. Circuit that Republican-led states are...