The Biden administration proposed a new rule Thursday that would require states to establish carbon emission reductions for vehicles and to track progress.
It is the latest effort by President Biden to combat climate change.
The Federal Highway Administration said it would allow states to set their own reduction goals so long as they align with Mr. Biden’s ambitious target to achieve net-zero emissions by 2050.
“Our approach gives states the flexibility they need to set their own emission reduction targets, while providing them with resources from President Biden’s Bipartisan Infrastructure Law to meet those targets and protect their communities,” Department of Transportation Secretary Pete Buttigieg said in a statement.