NOx emissions

Nikola releases stats on hydrogen fueling that show savings over diesel and a growing business for fuel cell trucks.

The overcapacity of on-highway trucks would look worse without underlying support from Mexico and strong vocational demand.

Using water emitted from fuel cells for a car wash is part of Toyota’s first all-renewable-energy vehicle processing center.

Cummins Inc. will retire two legacy engines, replacing them with one fuel-agnostic powertrain for medium- and heavy-duty trucks.

Lawmakers are invoking the Congressional Review Act to overturn an EPA rule they say is too costly for truckers — but chances for success are slim.

The EPA’s new tailpipe emissions standard raises implementation concerns from engine makers — and cost concerns from truckers.

New standards aimed at dramatically reducing pollution from trucks come at the wrong time for the economy, according to carriers and drivers.

The new president of the Truckload Carriers Association talks with an expert at FreightWaves about how environmental regulations and switching technologies impact the industry.

Truck-related emissions are disproportionately impacting people of color in New York City, according to a report released by The Real Urban Emissions Initiative.

The Biden administration is proposing stronger air pollution standards for heavy-duty trucks starting in model year 2027.

Federal regulators have announced dates for “significant” rulemakings affecting the trucking industry.

Engine braking technology invented by Clessie Cummins is part of the $325 million Cummins acquisition of Jacobs Vehicle Systems.

After settling a class-action lawsuit over defective MaxxForce engines, Navistar agrees to pay the government for Clean Air Act violations.

Data mining and telematics are changing the way air quality regulators are enforcing trucking emissions regulations in California.

VW settlement money is helping fleets replace polluting vehicles with cleaner equipment, but so far most of the money is invested in diesel, not electrification.

Plummeting prices make ExxonMobil’s fuel system-friendly diesel formulation that eliminates additives and reduces NOx emissions a better deal.

Cummins says Dynamic Skip Fire for diesel engines is promising in reducing smog-forming emissions in line with CARB and EPA goals to lower nitrous oxide pollution from heavy-duty trucks.

In a peak demand year for Class 8 tractors, high-powered engines dominated under the hood, but even a new heavy-haul transmission from Eaton and Cummins doesn’t affect an accelerating trend toward smaller displacement as tougher emissions standards loom.

Initiative will consider strategies to cut ozone emissions by 2027.

Company representative confident award will be reinstated in state supreme court.

addvantage USA injects a specific amount of LPG in the engine air intake to increase fuel efficiency and reduce NOx emissions.