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Driver hours-of-service rules are being relaxed in 26 states and the District of Columbia under a state of emergency announced by the Federal Motor Carrier Safety Administration on Aug. 31.

A notice from the U.S. Environmental Protection Agency to revisit parts of the Phase 2 final rule on greenhouse gas emissions from heavy- and medium-duty trucks isn’t likely to create changes quickly, as the agency has not presented plans for expedited action and environmental groups are vowing to pursue a challenge in a federal appeals court — once the case is no longer being held in abeyance.

COLUMBUS, Ind. — Cummins Inc. has unveiled a concept truck with an all-electric powertrain, highlighting the diesel engine manufacturer’s commitment to electric power as an important part of its future.

It could be years before drivers on U.S. highways catch a glimpse of a tractor-trailer rig cruising down the highway with another truck trailing a perilous 20 or 30 feet behind.

Run on Less, a first-of-its kind roadshow to demonstrate how trucks use technology to achieve fuel efficiency, is set to begin.

A growing U.S. economy sparked a jump in fuel demand from companies and travelers in June, which may help to ease a persistent supply glut.

YOUNTVILLE, Calif. — Daimler Trucks North America continues to expand its connected vehicle services to provide fleets with a broader arsenal of information and analytics tools they can use to make better business decisions.

Motorists don’t like to pay more at the pump, and lawmakers worry that if they raise taxes on gasoline, they’ll be voted out of office.

Minnesota Department of Agriculture officials have rejected a request by the state’s trucking association to delay a plan to increase the mix of biofuel to 20% of all diesel sold in the state beginning May 1.