Denso announced it has expanded its PowerEdge diesel aftertreatment products line to include light- and medium-duty trucks and vans.

The U.S. Environmental Protection Agency (EPA) announced that $26 million in grant funding will be made available to establish clean diesel projects with...

The EPA is looking to establish more stringent heavy-duty diesel truck emission standards for oxides of nitrogen (NOx) and other pollutants. The exact rule...

More than 37 percent of all diesel medium and heavy duty commercial trucks registered in the U.S. are now equipped with newer technology clean diesel...

Oregon's new rules will speed the transition to electric and lower-emissions trucks, buses, and vans, and likely will inspire other states to also adopt the...

The EPA is serious about further reducing exhaust emissions and boosting vehicle fuel economy. But the agency official’s remarks suggested that it intends...

The South Coast AQMD released Program Announcements for the 2020 Carl Moyer Program, including the SOON (Surplus Off-Road Opt-In for NOx) Provision....

Volvo Group stock fell after the Sweden-based truck and engine maker announced it was investigating the potential failure of a critical emissions control...

Millions of dollars in settlements from the VW diesel emissions cheating scandal will be made available for clean vehicle technology in California and...

Cummins showed off an emissions reduction concept that promises drastic reductions to NOx and particulate matter emissions in future diesel engines.

Pennsylvania is accepting grant applications to replace, repower, or retrofit fleet diesel-powered trucks, buses, and other vehicles and equipment.

Seemingly acting out of character, the Environmental Protection Agency on Nov. 13 announced it will launch a rulemaking to further cut the emission of...

The U.S. Environmental Protection Agency has fined Premier Performance of Rexburg, Idaho, one of the nation’s largest sellers of aftermarket automotive...

Southern California Gas and Western Milling unveiled the first of a planned 30 new ultra-low emissions trucks the company will deploy at its operations in...

The mayors of Paris, Mexico City, Madrid, and Athens have pledged to ban diesel vehicles from their cities by 2025 in an effort to improve air quality.

The California Air Resources Board has penalized LKQ Corporation for selling used diesel particulate filters, which is illegal in the State of California.

The new California Air Resources Board standard mandates that by 2045, every new truck sold in California will be zero-emission.

Unlike passenger vehicles, which require biennial smog checks in California, heavy-duty diesel trucks are not currently required to undergo regular...

The U.S. EPA has accused Fiat Chrysler of failing to disclose engine management software that increased air pollution in 104,000 diesel-powered Ram 1500...

The federal budget package approved by the U.S. House and U.S. Senate includes a 50 percent increase in funding for a clean air program that reduces...

The DERA funding covers engine replacements, repowers, and idle reduction technologies to clean up a variety of older diesel engines, including those in...

Diesel particulate filters help cleanse exhaust and give us cleaner air to breathe, but they cause frequent grief and expense.