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DETROIT — The U.S. government’s highway safety agency has launched an investigation into four automakers that have a potentially deadly type of Takata air bag inflator in their vehicles but have yet to recall them.

The Amazon.com vans parked outside apartment buildings and along suburban cul-de-sacs aren’t just bearing gifts to online shoppers this holiday season. The e-commerce giant’s home-delivery push has been a boon to automakers, too.

Just when will heavy-duty electric trucks be ready for prime time, and when will motor carriers purchase them?

For the trucking industry, 2019 was a year of transition, replete with regulatory victories and disappointments.

Massachusetts Gov. Charlie Baker is one of the leaders pushing for a regional program that would raise the price of gas while curbing greenhouse gas emissions from transportation.

A new report by the Environmental Protection Agency Inspector General determined that former agency Administrator Scott Pruitt failed to follow legal and public health safeguards in 2017 when he proposed to repeal an Obama-era regulation limiting the number of glider trucks that could be manufactured annually.

Allison Transmission announced it will provide more than 300 of its X200-4A propulsion solutions for the U.S. Army’s M113 armored personnel carrier family of vehicles through 2021 to support the Army’s mission of improving combat readiness.

The rules governing the use of steel and aluminum in cars have emerged as the latest obstacle to completing a revised NAFTA deal between the U.S., Mexico and Canada in time for congressional approval by year’s end.

WASHINGTON — The Trump administration rushed to exempt glider trucks from clean air rules without conducting a federally mandated study on how it would impact public health, the Environmental Protection Agency’s inspector general said Dec. 5.