Volvo Group’s SuperTruck demonstrates where energy-saving technology could take us – and in some cases, already has.

The Environmental Protection Agency and the National Highway Traffic Safety Administration have officially published the Phase 2 greenhouse gas/ fuel...

Orders are being processed and production has started for Cummins Westport’s ISL G Near Zero NOx natural gas engine, the company announced.

A new report says the industry will likely see a pre-emission boom in Class 8 truck sales in 2019 and 2020, before a sharp drop into 2021 — but others say...

Agencies contend the program will provide $230 billion in net benefits to society, including benefits to our climate and the public health of Americans but...

Starting in January of 2021, under the new greenhouse gas regulations, glider kits will be allowed mostly for their original purpose, which was reclaiming...

Trailers have long been regulated for safety. But trailers’ contributions to fuel economy and reduced emissions are new matters for for federal authorities.

The federal government released highly anticipated "Phase 2" greenhouse gas/fuel economy rules for medium and heavy-duty vehicles Tuesday, which in some...

Sacramento County, Calif. has begun using renewable diesel to fuel many of its heavy-duty vehicles, including more than 400 municipal public works trucks...

New report says U.S. heavy-duty truck suppliers and the nation benefit from strong efficiency and emissions rules.