
The U.S. Environmental Protection Agency (EPA) recently progressed its effort to stymie the aftermarket tuning of vehicles used for racing and competition in a complaint alleging that Gear Box Z violated the Clean Air Act by selling certain types of aftermarket software that modifies the engine control module (ECM), among other practices. EPA’s action is part of its national mobile source enforcement initiative to prevent the manufacturing, sale, and installation of aftermarket tuning and emission control defeat devices, in which EPA has pursued enforcement against both large and small suppliers.
Continue Reading EPA Reinforces Position that Certain Types of ECM Changes in Road-Certified Vehicles Constitute “Tampering” Under the Clean Air Act