In late December 2020, President Donald Trump granted full pardons to six individuals who had been convicted of violating the Clean Air Act by tampering with vehicle emissions systems. The pardons focused on business owners and mechanics who modified diesel trucks to bypass environmental controls, a practice commonly known as "rolling coal" or emissions defeat.
Who received the pardons?
The individuals granted clemency were identified by the White House as business owners and employees within the automotive repair industry. Among those pardoned were:
- John P. Tomey: Convicted in federal court for his role in modifying vehicle emissions systems.
- Gary L. Fox: A business owner prosecuted for the sale and installation of devices designed to defeat emissions controls.
- Michael G. Gwin: Convicted for activities related to the removal or alteration of emissions equipment on heavy-duty diesel trucks.
- Three additional individuals: The remaining recipients were also involved in similar automotive modification cases, according to official White House release records.
Why were these individuals prosecuted?
Federal prosecutors pursued these cases under the Clean Air Act, which prohibits the manufacture, sale, or installation of parts that bypass or disable vehicle emissions control systems. The Environmental Protection Agency (EPA) maintains that these "defeat devices" significantly increase the output of nitrogen oxides and particulate matter, both of which are linked to respiratory health issues and environmental degradation.
In each case, the defendants were found to have installed hardware or software that allowed diesel engines to operate without the required factory-installed exhaust filters. These modifications are often marketed to increase engine power or fuel efficiency, but they render the vehicles non-compliant with federal air quality standards.
How did the administration justify the clemency?
The Trump administration characterized the prosecutions as an example of federal overreach. In a statement released at the time, the White House argued that the individuals were "small business owners" who were unfairly targeted for "fixing their cars." The administration asserted that the defendants were providing services to customers who sought to improve the performance of their vehicles, framing the legal consequences as disproportionate to the nature of the offenses.
What is the legal impact of these pardons?
The pardons effectively cleared the federal criminal records of the six individuals, halting any ongoing supervision or remaining legal penalties associated with their convictions. However, these executive actions did not alter the underlying legal status of the Clean Air Act.
Under federal law, the installation of defeat devices remains illegal. Following the 2020 actions, the EPA has continued to pursue enforcement actions against companies that manufacture and sell these components. According to the EPA’s national enforcement initiatives, the agency maintains that the removal of emissions controls remains a significant contributor to air pollution, and enforcement remains a priority for the agency’s Office of Enforcement and Compliance Assurance.
Keep reading