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Two sets, or tiers, of emission standards for light-duty vehicles in the United States were defined as a result of the Clean Air Act Amendments of 1990. The Tier I standard was adopted in 1991 and was phased in from 1994 to 1997. Tier II standards were phased in from 2004 to 2009. Within the Tier II ranking, there is a subranking ranging from ...
The Environmental Protection Agency (EPA) announced a final rule in March under the Clean Air Act to set new emissions standards that would require up to two-thirds of new cars sold to be electric ...
On April 12, 2023, EPA proposed new federal vehicle tailpipe emissions standards that would accelerate the transition to electric vehicles (EVs). The standards would require at least two-thirds of all new cars sold in the United States to be zero-emissions vehicles by 2032. The rules seek to reduce air pollution and climate change.
In 2022, the EPA announced that it would be denying 23 states' SIPs. [2] In response, the EPA proposed a Federal Implementation Plan that amended the National Ambient Air Quality Standards. [3] The EPA had a right to do this under the Clean Air Act. Three plaintiffs, collectively referred to as "Ohio," filed an emergency appeal to the Supreme ...
In 2020, 27% of the GHG emissions of the United States were from transportation, 25% from electricity, 24% from industry, 13% from commercial and residential buildings and 11% from agriculture. [12] U.S. energy-related CO2 emissions decreased by 3% in 2023, amounting to a reduction of approximately 134 million metric tons (MMmt).
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The Ohio Environmental Protection Agency (Ohio EPA) is the administrative department of the Ohio state government [1] responsible for protecting the environment and public health by ensuring compliance with environmental laws. Those laws and related rules outline Ohio EPA's authority and what things the Agency can consider when making decisions ...
The new standards will avoid 1.38 billion metric tons of carbon pollution through 2047, equivalent to the annual emissions of 328 million gas cars, the EPA said, and will provide hundreds of ...