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EPA fines Arizona auto parts companies for selling ‘defeat’ devices in violation of Clean Air Act

Over $54,000 in penalties paid

December 21, 2021

Contact Information
Soledad Calvino (calvino.maria@epa.gov)
415-972-3512

SAN FRANCISCO – The U.S. Environmental Protection Agency (EPA) announced settlements today with two Arizona automotive parts distributors to resolve violations of the Clean Air Act. The companies illegally sold aftermarket auto parts that bypass or disable required emissions control systems, otherwise known as defeat devices. The distributors paid $54,814 in penalties.

“These settlements are a very significant step toward stopping the sale of illegal aftermarket defeat devices. These unlawful products cause harmful pollution on our roads and in our communities,” said EPA Pacific Southwest Regional Director of the Enforcement and Compliance Assurance Division, Amy Miller. “We will continue to investigate and penalize anyone who manufactures, sells, or installs these types of illegal products.”

Tampered diesel and gasoline powered vehicles emit large amounts of nitrogen oxides and particulate matter, both of which contribute to serious public health problems in the United States. These problems include premature mortality, aggravation of respiratory and cardiovascular disease, aggravation of existing asthma, acute respiratory symptoms, chronic bronchitis, and decreased lung function. Numerous studies also link diesel exhaust to increased incidence of lung cancer.

The increase in emissions that would have resulted from the use of the illegal parts and tuning software addressed in these settlements is estimated to equal the emissions coming from an additional 1,830 vehicles on the road. 

Today’s announcement highlights separate settlement agreements: 

Dykstra Inc. dba Dykstra Machinery sold or installed aftermarket parts and tuning software designed to defeat emission control systems of heavy-duty diesel trucks and nonroad diesel tractors. Dykstra also tampered with such trucks and tractors. The company, located in Gilbert and Casa Grande, Arizona, paid a civil penalty of $29,814 to resolve the violations. This agreement was reached under EPA’s expedited settlement policy, which is only used in certain circumstances to address minor, easily correctable violations. 

Dudu Oja Ije, LLC, dba RPM Outlet sold aftermarket parts and tuners designed to defeat the emission control systems of highway motor vehicles. The company, located in Phoenix, Arizona, agreed to pay a civil penalty of $25,000, which was reduced due to financial hardship, to resolve the violations.

If you suspect someone is manufacturing, selling, or installing illegal defeat devices, or is tampering with emissions controls, tell the EPA by writing to tampering@epa.gov.

For more information on EPA’s National Compliance Initiative: “Stopping Aftermarket Defeat Devices for Vehicles and Engines,” please visit: https://www.epa.gov/enforcement/national-compliance-initiative-stopping-aftermarket-defeat-devices-vehicles-and-engines

Learn more about EPA’s Pacific Southwest Region. Connect with us on Facebook and on Twitter. Learn more about EPA’s Pacific Southwest Region. Connect with us on Facebook and on Twitter.

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Last updated on November 30, 2022
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