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An ongoing refinery shutdown has prompted Colorado’s governor to extend a fuel supply chain emergency order enabling commercial vehicles to carry heavier fuel loads on state highways for another month.

LAS VEGAS — Daimler Truck North America has unveiled its SuperTruck II high-efficiency tractor-trailer combination, featuring freight efficiency gains that the company said are built around equipment and components central to real-world tractor-trailer operation.

The national average price of diesel nudged up 1.8 cents to $4.622 a gallon, according to Energy Information Administration data released Jan. 30.

WASHINGTON — For the second time this January, House Republicans have advanced a measure to restrict presidential use of the nation’s emergency oil stockpile.

The California Air Resources Board is making plans to modify its proposed Advanced Clean Fleets regulation to address possible electric charging infrastructure delays and unavailability of models of zero-emission trucks.

The good news for EV automakers and charging network operators is that changes to an 18-year-old U.S. program that has driven adoption of ethanol and biodiesel is getting a makeover for the electric vehicle age.

U.S. gasoline prices are back on the agenda in Washington as both political parties go on the offensive.

The national average price for diesel reversed its trend and climbed 8 cents to $4.604 a gallon, according to Energy Information Administration data for the week ending Jan. 23.

The national average price of diesel dipped 2.5 cents to $4.524 a gallon, according to Energy Information Administration data for the week ending Jan. 16.

WASHINGTON — Successful electrification of heavy trucks will require motor carriers to coordinate driver rest periods with charging their trucks, a potential obstacle that could increase carrier operational costs and result in delivery delays.