In the United States, government policies, innovations from the American automotive industry, and consumer interest in clean air have combined over the past decades to reduce passenger vehicle emissions.
The recent progress includes President Biden signing the Infrastructure Investment and Jobs Act in 2021, which expands public transportation options; replaces deficient transit vehicles, including buses, with zero-emission vehicles; and builds a national network of chargers for electric vehicles.
Earlier this year, the U.S. Environmental Protection Agency (EPA) reinstated a waiver under the Clean Air Act that allows California to set stricter emission rules for cars and sport utility vehicles than federal standards.
The EPA regulates motor vehicle pollution. Here’s what it and other entities have done to reduce emissions:
Source: share.america.gov, by Lenore T. Adkins