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The Trump administration has announced it will no longer criminally prosecute “diesel delete” cases of truck owners altering emissions systems in violation of EPA regulations. What does that mean for heavy-duty fleets?
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New guidance to engine manufacturers will reduce "derating," an automatic trigger forcing diesel engines to operate at a reduced capacity when the emissions system runs out of diesel exhaust fluid or there's a DEF-related fault.
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The U.S. Environmental Protection Agency issued a waiver allowing California to enforce its low-NOx omnibus emissions rule, which has been criticized by trucking groups.
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How is the newest version of the Cummins X15 diesel engine meeting EPA's 2027 Phase 3 greenhouse gas emissions regulations?
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With more attention being paid to Scope 3 emissions, may need to take a more proactive approach and a deeper dive into your company’s operations to attract and keep customers.
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Ending months of speculation, the U.S. Environmental Protection Agency issued strict greenhouse gas emissions standards that will push medium- and heavy-duty trucks toward zero-emission vehicles.
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Over the past year, public policy and new funding have shifted more emphasis to building the zero-emissions commercial vehicle market, according to the fourth annual State of Sustainable Fleets Market Brief.
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Colorado is the latest state to adopt California’s Advanced Clean Trucks rule, as well as its low-NOx regulations.
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Hear from ACT Research Senior Analyst Tim Denoyer about the likelihood of a pre-buy ahead of the new EPA 2027 emissions rules in this HDT Talks Trucking podcast.
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Here's what to know about EPA's final rule that sets very aggressive standards for NOx reductions and leaves engine makers precious little time to test and implement the technology required to meet the requirements.
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