New Transportation Secretary Sean Duffy called current regulations unrealistic and costly for automakers and consumers.

The increased adoption rate of the studied technologies meant that the 14 fleets operating 75,000 trucks saved $512 million ...

Hours after being sworn in as the new U.S. Secretary of Transportation, Sean Duffy took aim at the main way the federal ...

Scientists have developed a lignin-based jet fuel that can store hydrogen in a stable liquid form, offering a safer and more ...

Duffy ordered the federal agency in charge of fuel economy standards to reverse them as soon as possible. The standards have been in place since the 1970s energy crisis and were intended to ...

The cost of decarbonising the aviation industry has been estimated at as much as $5 trillion over the next 20 years ...

Duffy ordered the federal agency in charge of fuel economy standards to reverse them as soon as possible. The standards have been in place since the 1970s energy crisis and were intended to ...

Newly appointed U.S. Transportation Secretary Sean Duffy ordered a rewrite of more stringent U.S. fuel economy rules, following through on one of President Donald Trump’s first directives after ...