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The most ambitious rail project of California’s future is increasingly dependent on the cooperation of the very railroad that shaped the state’s past — and there are signs their relationship is growing strained.

The Trump administration’s plan to ease vehicle-emission mandates lifts some burdens for automakers but also would strip away options that have made it easier for them to comply and have encouraged the development of electric cars.

WASHINGTON — U.S. employers slowed their hiring in July, adding 157,000 jobs, a solid gain but below the healthy pace in the first half of this year.

Shippers beware: Oil refineries are starting to eradicate stockpiles of sulfur-rich fuel that powers the merchant fleet in anticipation of a demand collapse in fewer than 18 months.

Allied Beverage Group, a large New Jersey beverage distributor, has requested that the company’s shorthaul drivers utilizing the record of duty status exception be allowed to return to their work-reporting location within 14 hours instead of the usual 12 hours, the Federal Motor Carrier Safety Administration announced Aug. 3.

Highly computerized cars or trucks could mean consumers’ data is vulnerable or the driver safety might be endangered if car companies aren’t prepared to cut off at the pass any data breach or threat to cybersecurity.

WASHINGTON — Oil and gas executives have watched wearily in recent years as the relationship between the United States and Russia deteriorated, steadily closing off their ability to drill the vast shale plays underlying Siberia and the deep-water oil fields off Russia’s Arctic coast.

TOKYO — Toyota Motor Corp. logged a better than expected performance in the last quarter, reporting Aug. 3 that its quarterly profit jumped 7.2% to a record 657.3 billion yen ($5.9 billion), thanks to strong sales in the United States and other overseas markets.

WASHINGTON — The U.S. trade deficit widened in June for the first time in four months as exports fell and imports grew. Politically sensitive trade gaps with China, Mexico and Canada increased.

China announced a list of $60 billion worth of U.S. imports it plans to apply tariffs on should the Trump administration follow through with its latest trade threats.