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Earlier emergency orders have been extended in Georgia for supply chain and oversize permits and in Nebraska for driving hours hauling fuel.

An oil spill in a creek in northeastern Kansas this week is the largest for an onshore crude pipeline in more than nine years and by far the biggest in the history of the Keystone pipeline, according to federal data.

The advent of electric-powered commercial trucks has raised new design considerations for vehicle components beyond the propulsion system — including tires.

Federal regulators have proposed a new climate-reporting rule that would require large federal contractors to publicly disclose their greenhouse gas emissions, climate-related financial risks and science-based emissions reduction targets.

California is deploying a portable emissions detector in areas with heavy truck traffic to educate drivers and operators about a new smog check program that starts Jan. 1.

Georgia Gov. Brian Kemp signed two executive orders Nov. 4 to extend the supply chain emergency status and temporarily suspend state diesel and gas taxes through Dec. 11.

Gov. Roy Cooper signed an executive order positioning North Carolina to be a national leader in making and using zero-emission medium- and heavy-duty vehicles.

The Environmental Protection Agency said Nov. 9 it will consider adopting stricter rules on locomotive emissions in response to concerns raised by California regulators.

The governors of Nebraska and Iowa temporarily waived federal mandates for truck drivers amid greater fuel demand for harvest season and diesel shortages.