Newly appointed Secretary of Transportation Sean Duffy wasted no time in rolling back U.S. fuel efficiency regulations.

Hours after being sworn in as the new Secretary of Transportation, Sean Duffy took aim at the main way the federal government regulates miles per gallon for cars and pickup trucks.

Secretary Sean Duffy is already moving to overturn the Biden-Harris administration’s stringent fuel economy standards ...

Secretary Sean Duffy’s first act after being sworn in Tuesday was signing a memorandum that the administration says would ...

The new Transport Secretary tells the NHTSA to review all fuel economy rules. This will have massive effects across the ...

In one of his first acts as the newly confirmed Secretary of the Department of Transportation (DOT), Sean Duffy has taken swift action to roll back the Biden-Harris administration’s stringent fuel ...

The Department of Transportation is poised to reverse Biden-era fuel economy standards that increase fuel efficiency by 50% ...

President Donald Trump 's new Secretary of Transportation has an interesting Massachusetts connection. Sean Duffy, who was ...

Sean Duffy, the new transportation secretary, is facing his first major crisis just hours after his swearing-in.

The press conference ended at 1:20 a.m. on the East Coast, and Duffy was back at it at 7 a.m. Thursday morning to speak again about the worst commercial airline disaster in 16 years. He spoke at a ...