EPAProposed Rule

Reconsideration of 2009 Endangerment Finding and Greenhouse Gas Vehicle Standards

EnvironmentTransportationEnergy

Summary

The EPA is reconsidering its 2009 decision that greenhouse gases (like carbon dioxide) are harmful to the environment and public health, and may also reconsider vehicle pollution standards designed to reduce emissions. This could potentially weaken pollution rules for cars and trucks, which would affect air quality and climate change efforts.

Key Points

  • 1The EPA is reviewing whether it still believes greenhouse gases pose a threat to people and the environment, potentially reversing a major 2009 decision
  • 2Vehicle emission standards that require cars and trucks to produce fewer greenhouse gases could be changed or eliminated
  • 3The public has until September 23, 2025 to submit comments about whether these rules should be weakened, kept, or strengthened
  • 4This could allow cars and trucks to pollute more, which would affect air quality in communities and contribute to climate change
  • 5The decision would impact car manufacturers, drivers, and anyone concerned about pollution and climate change

Key Dates

Published

August 1, 2025

Comment Deadline

September 23, 2025

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This summary is for informational purposes only. It may not capture all nuances of the regulation. Always refer to the official text for authoritative information.

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