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ATLANTA — Over the course of 18 days, trucks participating in a demonstration by the North American Council for Freight Efficiency showed significant improvements in fuel efficiency through investments in technology and skilled drivers.

The trucking industry’s premier players are set to land in Atlanta for the biennial North American Commercial Vehicle Show.

Daimler AG is quitting development of natural-gas powered trucks to pool resources for electric and hydrogen rigs that can advance its goal of offering a CO2-neutral fleet in its main markets by 2039.

WASHINGTON — Senate Minority Leader Chuck Schumer is proposing a $462 billion trade-in program to get millions of Americans out of climate-damaging gas vehicles and into electric or hybrid cars over the next decade.

A new study by the National Academy of Sciences urges federal regulators to conduct an “interim evaluation” of the federal medium- and heavy-duty truck Phase 2 greenhouse gas and economy rule with an eye toward more stringent standards.

Transit officials in San Diego are rolling out a new $12.5 million pilot program to test the region’s first electric buses.

Petroleos Mexicanos imported less gasoline and diesel in the second quarter as its refineries produced more fuel and the government cracked down on fuel theft.

Renault SA will offer its electric Kangoo van with added hydrogen fuel cells before the end of the year and roll out the technology to another model in 2020.

The price of low-sulfur diesel is expected to surge in the near future as a mandate that cargo ships dramatically cut sulfur emissions takes effect.

EXTON, Pa. — For a second time in three months, President Donald Trump is headed to Pennsylvania to promote his support for the natural gas industry, making clear that he sees his pro-industry policies as a boost to his chances of winning the battleground state.