EPA sets 2027 target for halving heavy duty truck NOx emissions

The Environmental Protection Agency is finalizing a program to further reduce air pollution, including ozone and particulate matter (PM), from heavy-duty engines and vehicles. Compared to current standards, its new emissions thresholds are significantly more stringent and cover a wider range of heavy-duty engine operating conditions. The final rulemaking promulgates new numeric standards and changes key provisions of the existing…

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Feds settle with emissions control-defeating device purveyor

Source: U.S. Environmental Protection Agency 

Under an agreement with EPA and the U.S. Department of Justice (DOJ), Performance Diesel Inc. of St. George, Utah, will continue to refrain from selling products the agencies allege violate the Clean Air Act by defeating heavy-duty diesel engine emissions control systems, while paying a $1.1 million fine. 

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