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Two interstate companies operating heavy-duty truck fleets in California agreed to legal settlements with the U.S. Environmental Protection Agency.

The U.S. government’s own scientists on Sept. 21 questioned whether corn-based ethanol is better for the environment than traditional petroleum-based fuels.

The Environmental Protection Agency recently announced that $115 million has been directed for the Diesel Emissions Reduction Act program.

Stakeholders are expressing concerns about the costs associated with a proposal aimed at expanding use of electric vehicles and curtailing the prevalence of internal combustion engines.

The Biden administration on July 14 rejected more than two dozen oil refinery requests for exemptions from U.S. biofuel-blending requirements.

U.S. Rep. Tim Walberg (R-Mich.) has introduced a bill that would bar the EPA from finalizing strong new emission standards that would push the auto industry toward EVs.

An 18-state coalition is backing the EPA in a legal action supporting California’s future strict emissions controls on medium- and heavy-duty trucks.

President Joe Biden vetoed a proposal to roll back federal emission standards associated with heavy-duty commercial vehicles.

A proposal to roll back federal emission standards associated with heavy-duty commercial vehicles advanced to President Joe Biden, who has vowed to veto the legislation.

The Biden administration has dropped, for now, a plan that would have awarded automakers such as Tesla Inc. credits for using renewable natural gas to power electric vehicles.