The MOSAIC rule is a substantial overhaul. In fact, it's the most significant change since the introduction of. the LSA ...

During a speech on the House floor Tuesday, Rep. Doug LaMalfa (R-CA) spoke about Department of Transportation Secretary Sean Duffy's decision to pull funding for California's high speed rail project.

U.S. Secretary of Transportation Sean Duffy was at the EAA AirVenture festival Tuesday, July 22. Duffy announced a set of new regulations he says will make recreational flying ...

U.S. Secretary of Transportation Sean Duffy attended AirVenture on Tuesday to make an announcement for aviation regulation.

Draconian budget and staff cuts could mean another Challenger disaster, warn current and former NASA employees.

DOT head Sean Duffy announced $488 million in grants, proposed streamlining the grant process, encouraged state-led ...

Stock sales by top officials clustered before Trump's major tariff announcements, according to a USA TODAY analysis of ...

The National Highway Traffic Safety Administration (NHTSA) is reconsidering its new Corporate Average Fuel Economy (CAFE) ...

U.S. Transportation Secretary Sean Duffy has been lobbying lawmakers, so they vote to invest billions more in air traffic safety.

In a letter to NASA's interim chief, Sean Duffy, the group slammed "wasteful changes" that undermine NASA's core mission.

The U.S. Transportation Secretary is so pro-car that he risks making transportation less safe. Plus other news.