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United States vehicle emission standards are set through a combination of legislative mandates enacted by Congress through Clean Air Act (CAA) amendments from 1970 onwards, and executive regulations managed nationally by the Environmental Protection Agency (EPA), and more recently along with the National Highway Traffic Safety Administration (NHTSA).
In the United States, emissions standards are managed by the Environmental Protection Agency (EPA). It uses tiers to identify emission standards for cars, trucks and other motor vehicles. [ 8 ] In 2014, the EPA published its "Tier 3" standards for these vehicles, which tightened air pollution emission requirements and lowered the sulfur content ...
Ohio EPA establishes and enforces standards for air, water, waste management and cleanup of sites contaminated with hazardous substances. The Agency also provides financial assistance to businesses and communities; environmental education programs for businesses and the public; and pollution prevention assistance to help businesses minimize ...
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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The EPA's preferred standards would take carbon dioxide emissions from 186 grams per mile in 2026 to 82 in 2032, a 56% reduction. The limits would reach 111 grams per mile by 2029.
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 EPA's new rules to cut carbon emissions at coal plants fall into two categories, based on how long the coal plant is expected to operate: Coal plants that will operate on or after Jan. 1, 2039 ...