Daimler Truck North America is pressing the EPA to finalize its proposed revisions to the nitrogen oxide-emissions rule for model-year 2027 engines.
October 1, 2026Truck emissions News Updates
Explore commercial vehicle emissions news with coverage on regulatory actions, technological advances and industry efforts to reduce pollutants from heavy-duty trucks. This category highlights analysis of emission standards, clean technology adoption, policy impacts and research affecting fleets, manufacturers and environmental outcomes. Reporting sheds light on how changes in emissions rules and innovation in powertrain solutions influence sustainability and operations across the trucking and logistics sector.
House approves DERA funding extension
The U.S. House of Representatives on Sept. 15 approved bipartisan legislation to reauthorize a program that aims to retrofit or replace older diesel trucks and engines.
September 17, 2026As regulations fade, electric truck adoption will hinge on business cases
Rather than plan around a national transition to zero-emission trucks, fleets are weighing total cost of ownership, operational feasibility and customer expectations.
August 8, 2026Paccar to keep selling current heavy-duty truck engines in ’27
"That’s the engagement we’ve had with many, many customers that that’s their preferred approach," CEO Preston Feight said.
July 29, 2026Mack, VTNA lay out DEF derate software update schedules
Each Volvo Group unit said its flagship on-highway tractors began rolling off production lines in May with the updates already in place.
July 27, 2026EPA proposes cost-saving revision to 2027 truck emission rule
EPA’s proposal would keep in place the tighter NOx emission limits set to go into effect in January but would scale back a significant warranty-coverage expansion.
July 13, 2026EPA Seeks Delay on Stricter Emissions Rules for Certain Vehicles
The EPA has proposed delaying stricter emissions standards for light-duty and Class 3 medium-duty vehicles until model year 2029.
May 20, 2026Volvo to Pay $196.5 Million to Settle With CARB
The settlement is the latest in a series between truck and engine manufacturers and the California agency related to nitrogen oxide emissions.
May 18, 2026New Diesel Engines Come With Fewer Headaches, OEMs Say
“We made sure that going into 2027, our service intervals are improving,” International Motors Director of Engineering Navtej Singh said at ACT Expo.
May 14, 2026EPA 2027 NOx NPRM Expected by Late June, OEMs Say
The agency is expected to leave in place a requirement that NOx emissions for heavy-duty trucks fall to 35 milligrams per horsepower-hour from 200 mg/hp-hr.
May 6, 2026