The Trump administration weakens car fuel efficiency standards : NPR

The revised rules, which were finalized Monday, will now require carmakers to make their new passenger car and truck fleets up to 1% more fuel efficient each year, aiming for an average of 34.9 miles to the gallon in model year 2031. 

This is down from Biden-era rules, which required an annual 2% increase in fuel efficiency with a goal of most vehicles getting, on average, 50.4 miles to the gallon by 2031…

 https://www.npr.org/2026/09/28/nx-s1-5918509/car-fuel-efficiency-cafe-standards-rollback

 

EPA prepares to ditch clean car rules over objections of their own scientists - Daily Kos

On Thursday the EPA formally started the process of rolling back CAFE standards, erasing all intended progress over the next decade. It's an action that US car companies are celebrating for the immediate gain to their bottom line as they can drop the research and design effort needed to improve mileage and concentrate on selling larger vehicles. ....
https://www.dailykos.com/stories/1768532