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Hydrogen producer Plug Power Inc.’s stock soared May 14 after the Biden administration offered the U.S. company a conditional commitment for $1.66 billion in loan guarantees to build up to six facilities.

WASHINGTON — The Biden administration announced plans to slap new tariffs on Chinese electric vehicles, advanced batteries, solar cells, steel, aluminum and medical equipment.

DETROIT — The U.S. government’s highway safety agency has opened another investigation of automated driving systems, this time into crashes involving Waymo’s self-driving vehicles.

As cars and trucks get smarter and more connected, the humble lights that have controlled the flow of traffic for more than a century could also be on the cusp of a major transformation.

Superpowers led by the U.S. and European Union have funneled $81 billion toward cranking out the next generation of semiconductors, escalating a showdown with China for chip supremacy.

NHTSA has opened an investigation into Zoox, the autonomous vehicle subsidiary of Amazon.com Inc., after two incidents in which its SUVs suddenly braked and were rear-ended.

DETROIT — Federal highway safety officials want Tesla to tell them how and why it developed the fix in a recall of more than 2 million vehicles equipped with the company’s Autopilot system.

The Biden administration gave carmakers a partial reprieve in finalizing EV tax credit rules intended to loosen China’s grip on battery materials crucial to the car industry’s future.

California legislators have reintroduced a pair of bills regulating autonomous trucks to potentially override a veto in September by Democratic Gov. Gavin Newsom.

WASHINGTON — Ensuring electric commercial vehicles have reliable access to charging infrastructure remains a persistent challenge, a trucking executive recently told policymakers.