EPA proposes stronger heavy truck pollution limits

ASSOCIATED PRESS • March 7, 2022

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. The proposal released Monday by the Environmental Protection Agency would require the industry to cut smog-and-soot-forming nitrogen oxide emissions by up to 90% per truck over current standards by 2031. The emissions can cause respiratory problems in humans.