Battery-electric vehicles are the key to zero-emission commercial transportation in North America, according to Daimler Trucks North America, which is...

The U.S. Environmental Protection Agency Administrator reaffirmed the Trump administrations claim that it would not cooperate with California on...

Trump administration officials representing the EPA and NHTSA held a "tense" late-February conference call with auto manufacturing executives, sources have...

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

Colorado Gov. Jared Polis has signed an executive order designed to support a transition to zero-emission vehicles and help the state reach 100% renewable...

Detroit automakers say they have seen delays with federal emissions testing of new pickup trucks from the U.S. Environmental Protection Agency due to the...

Volvo Trucks announced plans to sell an all-electric truck called the Volvo VNR Electric in North America by 2020.

The California Air Resources Board has adopted a new emissions tracking program that would help regulators identify vehicles with excess smog-related and...

Tennessee Tech said some of the conclusions of its study of glider kit emissions were not accurate, and that the data does not support its earlier...

The Ports of Los Angeles and Port of Long Beach in Southern California will require all newly registered trucks servicing terminals at either port to be...