Heidi King, deputy administrator for the National Highway Traffic Safety Administration, is planning to leave the agency as soon as next week.

Fuel economy has been and will be the guiding force for change for the manufacturers as well as for our politicians for the near future.

Federal agencies will take public input on the Trump administration's plan to relax fuel economy standards at three hearings later this month, according to...

A federal appeals court has ruled against the Trump administration's move to delay a regulation that increased fines against automakers for cars that...

The Trump administration began the process of revising Obama-era fuel economy standards for vehicle manufacturers today, and announced it may revoke...

A pair of federal lawmakers from Michigan have proposed a bill that would make it easier for automakers to meet fuel economy requirements.

Driven by an investment in electric vehicles (EVs), fuel economy of new non-emergency light- and medium-duty vehicle purchases for the New York City fleet...

The Trump administration is reopening a federal review of Obama-era fuel economy rules covering the 2022 to 2025 model years, and expanding the review to...

The U.S. Department of Transportation may revise automotive fuel economy standards starting with the 2021 model year and could lower standards through 2025,...

A coalition of 13 attorneys general led by New York's Eric Schneiderman told the Trump administration it could expect a "vigorous" legal challenge to any...