The Biden administration is proposing stronger pollution regulations for new tractor-trailer rigs that would clean up smoky diesel engines and encourage new technologies during the next two decades.
Trucks, stand by for tailpipe rules
![Trucks, stand by for tailpipe rules Trucks on the road](https://gnoicc.org/wp-content/uploads/2022/03/highway-g9828d388f_1920-642x300.jpg)
The Biden administration is proposing stronger pollution regulations for new tractor-trailer rigs that would clean up smoky diesel engines and encourage new technologies during the next two decades.