Press Release

ATA Applauds EPA’s Fix to Diesel Exhaust Fluid Guidance

Aug 12, 2025

Washington — Today, the American Trucking Associations expressed support for new Diesel Exhaust Fluid guidance issued by U.S. Environmental Protection Agency Administrator Lee Zeldin that would avert sudden speed and power losses for trucks and other diesel equipment without degrading environmental standards.

“Trucking fleets across the country applaud EPA Administrator Zeldin for responding to the concerns of our industry and providing common-sense solutions that reflect the complexities and realities of trucking,” said Patrick Kelly, ATA’s vice president of energy and environmental affairs. “EPA’s new guidance will avoid unnecessary towing costs and equipment downtime while preserving the full environmental benefits that Selective Catalytic Reduction systems provide.”

The updated DEF guidance for manufacturers will significantly increase the amount of time operators have to address a sensor alert.  This change will help prevent supply chain disruptions as well as reduce costs for unnecessary emergency towing, repairs, or rentals.