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The states must also promulgate miscellaneous emissions regulations in order to comply with the National Ambient Air Quality Standards. [10] In December 2021 EPA issued new greenhouse gas standards for passenger cars and light trucks, effective for the 2023 vehicle model year. [11]
The EPA issued a new rule in December 2021, to become enforceable by February 2022, that effectively restored the Obama-era standards, through decreasing the fleet-wide emissions target to a projected 161 g CO 2 /mi by the 2026 model year.
The National Emission Standards for Hazardous Air Pollutants (NESHAP) are air pollution standards issued by the United States Environmental Protection Agency (EPA). The standards, authorized by the Clean Air Act, are for pollutants not covered by the National Ambient Air Quality Standards (NAAQS) that may cause an increase in fatalities or in serious, irreversible, or incapacitating illness.
The federal regulations don't mandate electric trucks or school buses, unlike California's tougher standards. But the EPA's rules will curtail a billion tons of greenhouse gas emissions each year.
The new rules for heavy trucks and buses come a week after the EPA announced new automobile emissions standards for passenger vehicles. Those rules relax initial tailpipe limits proposed last year ...
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In December 2021 EPA issued new greenhouse gas standards for passenger cars and light trucks. The standards, which will reduce climate pollution and improve public health, became effective for the 2023 vehicle model year. [98] In March 2022 the Biden administration allowed California to again set stricter auto emissions standards. [99]
The new standards will avoid more than 7 billion tons of planet-warming carbon emissions over the next three decades and provide nearly $100 billion in annual net benefits, the EPA said, including ...
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