DOJ to Drop Criminal Charges for Diesel Tunes: Environmental Concerns Ignored
The Department of Justice (DOJ) announced a policy change on January 21, 2026, ceasing criminal charges for Clean Air Act violations related to diesel emissions tampering, often called “tuning” or “deletes.” This shift in enforcement, targeting practices like removing emissions control devices, follows a commitment to efficient resource use and avoiding over-criminalization. While criminal charges are no longer pursued, civil penalties for these violations may still be issued in partnership with the Environmental Protection Agency (EPA). This decision follows the pardon of a mechanic charged with Clean Air Act violations in November 2025, which also inspired legislative attempts, such as the “Diesel Truck Liberation Act,” that ultimately did not pass.
John Q. Hosedrinker