Derive Systems Bully Dog

EPA and DOJ Settle with Derive Systems over Vehicle Emissions Control Defeat Devices

The U.S. Environmental Protection Agency (EPA) and U.S. Department of Justice (DOJ) announced a settlement with Derive Systems (Derive) to address the sale of approximately 363,000 aftermarket products designed to defeat the emissions control systems of cars and trucks in violation of the Clean Air Act.

Over a span of multiple years, Derive sold products, including custom engine tuning software and parts, online and at distributors across the nation under the brand names of “Bully Dog” and “SCT” for use in many types of gasoline and diesel-fueled cars and trucks. Under the terms of the settlement, Derive will spend approximately $6.25 million to ensure future compliance, and pay a civil penalty of $300,000.

“Manufacturers and sellers of automotive emissions control defeat devices should stand up and take notice of this settlement,” said EPA Office of Enforcement and Compliance Assurance Assistant Administrator Susan Bodine. “EPA will protect air quality by vigorously enforcing the Clean Air Act’s prohibition on these devices.”


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