AdvertisementThe big reason why the U.S. is seeking the toughest-ever rules for vehicle emissions03:46Download AudioResumeApril 12, 2023Camila DomonoskefacebookEmailTraffic moves along Interstate 80 in Berkeley, Calif., on Feb. 16, 2022. The Biden administration proposed new tough emission rules so tough it would force auto makers to boost sales of electric cars to meet the requirements. (Getty Images)
