Allegedly NOx-ious Defeat Devices Prove Costly for Engine Manufacturer

  • California AG Rob Bonta and the California Air Resources Board (CARB) settled with Cummins Inc. to resolve allegations that the engine manufacturer violated California consumer protection laws and the state’s Health and Safety Code by installing illegal defeat devices to bypass vehicle emissions control equipment in diesel engines on certain RAM pickup trucks, leading to excess nitrogen oxide (NOx) emissions.
  • Under the terms of the California settlement, Cummins must pay $33 million in civil penalties to the state and $175 million to CARB to fund mitigation efforts to reduce NOx emissions in California.
  • Cummins will also pay $1.642 billion in a concurrently filed settlement with the U.S. government that constitutes the largest Clean Air Act civil penalty to date.