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WASHINGTON — The U.S. Postal Service has reduced its volume of shipments by aircraft by 90% over two years, putting the service on course to save $1 billion in annual transportation costs.

The Federal Motor Carrier Safety Administration announced plans to renew its requirement that motor carriers maintain a record of accidents involving their commercial motor vehicles.

Volvo AB is recalling nearly all battery-powered electric trucks in the U.S. that were made over the past four years because of an issue that may potentially cause a battery fire.

More than 81% of commercial motor vehicles and 94% of drivers inspected during International Roadcheck in May did not have any out-of-service violations during the enforcement effort.

Kentucky Gov. Andy Beshear joined state officials in breaking ground on a $30 million highway expansion project for the Owensboro Riverport Authority.

Florida-based Western Global Airlines filed for bankruptcy protection with plans to slash its debt load after the cargo airline faced a cash crunch.

DETROIT — The U.S. government’s most ambitious plan ever to slash planet-warming greenhouse gas emissions from passenger vehicles faces skepticism.

Yellow Corp. on Aug. 7 announced it was seeking Chapter 11 bankruptcy protection and entering into an agreement that would secure sufficient financing to wind down operations.

For the first time in California, one out of every four new cars sold in the last quarter were zero-emission vehicles, Gov. Gavin Newsom announced this week.

WASHINGTON — U.S. employers added 187,000 jobs in July, fewer than expected, as the higher interest rates continued to weigh on the economy. But the unemployment rate dipped to 3.5%.