The mandate that the DoT challenged was a key part of former President Joe Biden’s plan to address climate change.

U.S. Transportation Secretary Sean Duffy said on Wednesday he supports an independent audit into airspace operations and ...

Transportation Secretary Sean Duffy says Biden-era fuel economy standards for gas-guzzling cars and trucks are illegal and ...

PHMSA updates enforcement policies to ensure due process and transparency, aligning with legal standards and enhancing ...