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Apple Inc. said it rehired Doug Field after the executive spent about five years at Tesla Inc. in charge of vehicle engineering.

An update of federal guidelines on autonomous technology that would encompass trucks, transit systems, infrastructure, cars and other modes of transportation will emphasize safety, the country’s top transportation officer said Aug. 8.

The autonomous technology gap between Ford Motor Co. and its rivals from Detroit and Silicon Valley can be measured in years. Yet even a company playing catch-up in the race to turn self-driving technology into high-margin businesses is drawing interest from outside investors, an indicator of just how much money is pouring in.

Four environmental services companies have submitted a joint application for exemption from hours-of-service regulations to the Federal Motor Carrier Safety Administration.

Although Uber Technologies Inc. recently halted its self-driving truck program, the ride-hailing pioneer is doubling down on its Uber Freight load-matching business and announced that Otto co-founder and former Uber executive Lior Ron will rejoin the company to run that unit.

Elon Musk said he’s considering taking Tesla Inc. private in a radical step that would ease pressure on the money-losing automaker.

Hydrogen-electric truck maker Nikola Motor Co. announced it has quickly raised $100 million of a planned $200 million in C-round funding as it accelerates the scale of its operations.

Ryder System Inc. announced it is using Uber Central to transport drivers and technicians more easily to and from Ryder and customer locations, resulting in less downtime.

Last week, President Donald Trump proposed gutting California’s unique ability to write greenhouse gas emission limits for cars and trucks.