Action

EPA determined in December 2009 that climate change caused by emissions of greenhouse gases threatens the public's health and the environment. Between 2017 and 2019, EPA received four petitions related to this determination. On April 21, 2022, EPA denied these petitions.

Response to Petitions

• Download a PDF version of the Federal Register Notice:
  • Endangerment and Cause or Contribute Findings for Greenhouse Gases Under Section 202(a) of the Clean Air Act; Final Action on Petitions (pdf) (184.24 KB, April 2022)
• Download a PDF version of the Decision Document:
  • EPA’s 2022 Denial of the Petitions to Reconsider the Endangerment and Cause or Contribute Findings for Greenhouse Gases Under Section 202(a) of the Clean Air Act; Final Rule (pdf) (1.02 MB, April 2022)
• Download PDF versions of the response letters to specific petitions:
  • Response letter to Competitive Enterprise Institute and Science and Environmental Policy Project (pdf) (522.91 KB, April 2022)
  • Response letter to Concerned Household Electricity Consumers Council (pdf) (523.79 KB, April 2022)
  • Response letter to Texas Public Policy Foundation (pdf) (526.43 KB, April 2022)
  • Response letter to The FAIR Energy Foundation (pdf) (497.76 KB, April 2022)

Petitions

• View or download the Petitions Received in 2017-2019 for Reconsideration, Rulemaking, or Reopening of the Endangerment and Cause or Contribute Findings for Greenhouse Gases Under Section 202(a) of the Clean Air Act.