Environmental Protection Agency News Updates

The waiver, however, applies only to older engines. EPA warned that the fuel can damage newer trucks equipped with modern emissions systems.

The move aims to restore biofuels demand for farmers after recent exemptions, while shifting compliance costs to refiners that did not receive breaks.

The EPA gave so-called small refinery exemptions, or SREs, totaling 1.76 billion credits for the 2025 compliance year, after a week of turmoil in the industry.

The rule requires refiners to mix a record 25.82 billion gallons of biofuels into conventional diesel and gasoline this year, EPA says.

The company’s Gen 6 portfolio comprises the 13-liter DD13, 15-liter DD15 and 16-liter DD16 engines, and will be available for all heavy-duty Freightliner and Western Star trucks.

State Attorney General Rob Bonta argued that Daimler Truck North America, International Motors, Paccar and Volvo Group North America are violating the terms of a contract signed in 2023 with CARB.

Tesla urged U.S. environmental regulators to maintain ambitious tailpipe emissions standards that were put in place to push the industry to sell electric vehicles in larger numbers.

The EPA proposed requiring large oil processors to make up for biofuel blending obligations waived for small refineries, boosting farmer-friendly stocks.

This time EPA is targeting the California Air Resources Board’s Clean Truck Check law, also known as the Heavy-Duty Inspection and Maintenance Program.

The decision applies to 38 small refineries that had requested waivers from annual blending quotas, according to a statement Aug. 22.