Revised 2023 and Later Model Year
Light-Duty Vehicle Greenhouse Gas
Emissions Standards: Proposed Rule
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By the Numbers
•	Transportation is the single largest source of GHG emissions in the United
States, making up 29 percent of all emissions.
•	Passenger cars and trucks contribute 58 percent of all transportation sources
and 17 percent of total U.S. GHG emissions.
•	To address the urgent need to curb GHG emissions from transportation, the
Environmental Protection Agency (EPA) is proposing to strengthen federal
greenhouse gas (GHG) emissions standards for passenger cars and light trucks
for Model Years (MY) 2023-2026.
For MY 2026 the proposed rule would be the most stringent federal light-duty
vehicle GHG emissions standards ever set.
EPA's proposed GHG emission standard for passenger cars and light trucks
standards would . . .
o reach a projected industry-wide target of 171 grams C02 /mile, or
52 miles per gallon equivalent1 by MY 2026.
o increase in stringency by about 10 percent in MY 2023 as compared to
MY2022. Stringency would increase by about 5 percent each year from
^	MY 2024 through MY 2026.
o result in 2.2 billion tons of avoided C02 emissions through 2050.
¦ Cumulative GHG emissions avoided through 2050 are
roughly equal to one year's worth of GHG emissions from
all petroleum combustion in the U.S. in 2019.
bjO 	
a;	ThL equates to a real-world value of 38.2 mpg. This is the value that consumers
would see on fuel economy window stickers.
£\	United States
Environmental Protection
Agency
Office of Transportation and Air Quality
EPA-420-F-21-058
August 2021

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provide between $86 and $140 billion in net benefits through 2050 from
improvements in public health and reduced impacts of climate change.
¦ Between $3.6 and $8.8 billion of the total benefits through 2050 are
attributable to reduced emissions of non-GHG pollutants, primarily
those that contribute to ambient concentrations of PM2.5.
save American drivers between $120 to $250 billion in fuel costs through 2050.
reduce gasoline consumption in the U.S. by 227 billion gallons or 5.4 billion
barrels through 2050.
save individual consumers money - over the lifetime of a 2026 vehicle the average
per-vehicle cost of just over $1,000 would be more than offset by fuel savings,
resulting in a net per-vehicle savings of about $900 due to reduced fuel costs.

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