NOx News Updates

A longtime advocate in Washington for trucking stakeholders, Gelb replaced Jed Mandel, who ended a quarter of a century as EMA president in September 2025.

The settlement is the latest in a series between truck and engine manufacturers and the California agency related to nitrogen oxide emissions.

Program Aired: May 18, 2 p.m. ET David Hillman, vice president of integrated technology sales, and Michael Noonan, vice president of product regulatory, certification and compliance for International Motors, join Seth Clevenger to provide clarity on the current emissions regulatory landscape and share what fleet leaders need to know now to make informed decisions for the years ahead.

“We made sure that going into 2027, our service intervals are improving,” International Motors Director of Engineering Navtej Singh said at ACT Expo.

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.

Tighter emissions standards for heavy-duty engines produced starting in 2027 will make leasing more attractive, said Dean Vicha, president of NationaLease.

Order season for North American original equipment manufacturers typically kicks off in September, but this past fall and winter saw a lag in commitments.

American Trucking Associations is asking EPA to re-evaluate and make adjustments to its forthcoming nitrogen oxide emissions rules for 2027 model-year heavy-duty trucks.

A rosier picture is certainly welcome after what Cummins Chief Financial Officer Mark Smith called “a long dry spell” for the heavy-duty truck sector in North America.

“We are marching forward as though this emissions regulation lands at the beginning of 2027,” said Dan Kayser, executive vice president of commercial operations at International.