Trump repeals biden’s fuel efficiency standards, weakening climate rules for millions of vehicles

President Donald Trump announced Wednesday his decision to repeal federal fuel economy standards implemented during the Biden administration, significantly rolling back efficiency requirements that would have affected tens of millions of new cars and light trucks across the United States.

The move represents Trump’s continued push to dismantle environmental regulations established by his predecessor, targeting rules designed to reduce emissions from gasoline-powered vehicles. These standards were part of broader federal efforts to support cleaner transportation technologies and combat climate change through improved fuel efficiency.

Transportation currently stands as the largest source of greenhouse gas emissions in the United States, making vehicle efficiency standards a critical component of national climate policy. The burning of gasoline in cars and trucks contributes substantially to global warming, with stricter fuel economy requirements serving as one mechanism to reduce these emissions over time.

The repeal signals a broader shift in federal environmental policy, as the Trump administration continues to reverse climate-focused regulations and reduce government support for clean energy initiatives and environmentally friendly vehicle technologies. This latest action affects regulatory frameworks that would have governed fuel efficiency standards for new vehicles entering the American market, potentially impacting both manufacturers’ production decisions and consumers’ long-term fuel costs.