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REMINGTON, Va. — For years, there’s been a cardinal rule for flying civilian drones: Keep them within your line of sight. Not just because it’s a good idea — it’s also the law.

The National Highway Traffic Safety Administration has finalized a rulemaking that updates two truck rear underride guard standards it said will improve protection for drivers and passengers in light vehicles in the event of a rear underride crash.

The U.S. is pushing the Netherlands to ban ASML Holding NV from selling to China mainstream technology essential in making a large chunk of the world’s chips, expanding its campaign to curb the country’s rise, according to people familiar with the matter.

A recent U.S. Environmental Protection Agency hearing focused on the California Air Resources Board's bid to proceed with three aggressive regulations that have not been well-received within the trucking industry.

Semiconductor stocks took a beating after a grim profit warning from Micron Technology Inc. sparked fresh worries about corporate America’s earnings power with the U.S. potentially heading for a recession.

Safety measures are being developed to deal with the special properties of hydrogen as the pace quickens to bring heavy-duty fuel-cell trucks to market.

Federal researchers hope in July to reach a key milestone to refuel heavy-duty fuel-cell hydrogen trucks in 10 minutes, paving the way to prototype hardware and protocols for fueling stations.

The entire U.S. and Canadian market of hundreds of thousands of simple medium-duty box trucks will come to embrace electrification, leading the way for other more complex medium-duty applications over the next decade as the industry pursues zero emissions, according to the North American Council for Freight Efficiency.

WASHINGTON — The new head of the government’s road safety agency says it will intensify efforts to understand the risks posed by automated vehicle technology, so it can decide what regulations may be necessary to protect drivers, passengers and pedestrians.