United States Government Publishing Office publisher pbl distributor dst United States National Archives and Records Administration Office of the Federal Register author aut Government Organization text government publication eng FR Regulatory Information 2009_register executive 2009-04-24 article Part III Proposed Rules D09002ee1c806b1b3 D09002ee1c806b2a0 United States Environmental Protection Agency originator org United States Government Agency or Subagency Today the Administrator is proposing to find that greenhouse gases in the atmosphere endanger the public health and welfare of current and future generations. Concentrations of greenhouse gases are at unprecedented levels compared to the recent and distant past. These high atmospheric levels are the unambiguous result of human emissions, and are very likely the cause of the observed increase in average temperatures and other climatic changes. The effects of climate change observed to date and projected to occur in the future--including but not limited to the increased likelihood of more frequent and intense heat waves, more wildfires, degraded air quality, more heavy downpours and flooding, increased drought, greater sea level rise, more intense storms, harm to water resources, harm to agriculture, and harm to wildlife and ecosystems--are effects on public health and welfare within the meaning of the Clean Air Act. In light of the likelihood that greenhouse gases cause these effects, and the magnitude of the effects that are occurring and are very likely to occur in the future, the Administrator proposes to find that atmospheric concentrations of greenhouse gases endanger public health and welfare within the meaning of Section 202(a) of the Clean Air Act. She proposes to make this finding specifically with respect to six greenhouse gases that together constitute the root of the climate change problem: carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride. The Administrator is also proposing to find that the combined emissions of carbon dioxide, methane, nitrous oxide, and hydrofluorocarbons from new motor vehicles and new motor vehicle engines are contributing to this mix of greenhouse gases in the atmosphere. Thus, she proposes to find that the emissions of these substances from new motor vehicles and new motor vehicle engines are contributing to air pollution which is endangering public health and welfare under section 202(a) of the Clean Air Act. 74 FR 18886 https://www.govinfo.gov/app/details/FR-2009-04-24/E9-9339 E9-9339 FR24AP09-22 RIN 2060-ZA14 6560-50-P EPA-HQ-OAR-2009-0171 FRL-8895-5 https://www.govinfo.gov/app/details/FR-2009-04-24/E9-9339 https://www.govinfo.gov/content/pkg/FR-2009-04-24/html/E9-9339.htm https://www.govinfo.gov/content/pkg/FR-2009-04-24/pdf/E9-9339.pdf 25 p. 18886 18910 74 FR 18886 Title 40 Chapter I 40 CFR Chapter I RIN 2060-ZA14 Proposed Endangerment and Cause or Contribute Findings for Greenhouse Gases Under Section 202(a) of the Clean Air Act; Federal Register Vol. 74, Issue PRORULE E9-9339 III ENVIRONMENTAL PROTECTION AGENCY 2009-06-23 EPA-HQ-OAR-2009-0171 FRL-8895-5 6560-50-P E9-9339 Proposed rule.

Today the Administrator is proposing to find that greenhouse gases in the atmosphere endanger the public health and welfare of current and future generations. Concentrations of greenhouse gases are at unprecedented levels compared to the recent and distant past. These high atmospheric levels are the unambiguous result of human emissions, and are very likely the cause of the observed increase in average temperatures and other climatic changes. The effects of climate change observed to date and projected to occur in the future--including but not limited to the increased likelihood of more frequent and intense heat waves, more wildfires, degraded air quality, more heavy downpours and flooding, increased drought, greater sea level rise, more intense storms, harm to water resources, harm to agriculture, and harm to wildlife and ecosystems--are effects on public health and welfare within the meaning of the Clean Air Act. In light of the likelihood that greenhouse gases cause these effects, and the magnitude of the effects that are occurring and are very likely to occur in the future, the Administrator proposes to find that atmospheric concentrations of greenhouse gases endanger public health and welfare within the meaning of Section 202(a) of the Clean Air Act. She proposes to make this finding specifically with respect to six greenhouse gases that together constitute the root of the climate change problem: carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride. The Administrator is also proposing to find that the combined emissions of carbon dioxide, methane, nitrous oxide, and hydrofluorocarbons from new motor vehicles and new motor vehicle engines are contributing to this mix of greenhouse gases in the atmosphere. Thus, she proposes to find that the emissions of these substances from new motor vehicles and new motor vehicle engines are contributing to air pollution which is endangering public health and welfare under section 202(a) of the Clean Air Act.

Comments on this proposed action must be received on or before June 23, 2009. If you submitted comments on the issues raised by this proposal in dockets for other Agency efforts (e.g., the Advance Notice of Proposed Rulemaking on Regulating Greenhouse Gases under the Clean Air Act), you must still submit your comments to the docket for this action (EPA-HQ-OAR-2009-0171) by the deadline if you want them to be considered. Jeremy Martinich, Climate Change Division, Office of Atmospheric Programs (MC-6207J), Environmental Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460; telephone number: (202) 343-9927; fax number: (202) 343-2202; e-mail Proposed Endangerment and Cause or Contribute Findings for Greenhouse Gases Under Section 202(a) of the Clean Air Act , GHG-Endangerment-Docket@epa.gov ghgendangerment@epa.gov http://cait.wri.org http://www.epa.gov/climatechange/endangerment.html http://www.epa.gov/quality/informationguidelines/documents/EPA_InfoQualityGuidelines.pdf http://www.regulations.gov www.regulations.gov Vol. 74, no. 78 Office of the Federal Register, National Archives and Records Administration 2009-04-24 continuing daily deposited born digital 364 p. Table of Contents: AE 2.7: GS 4.107: AE 2.106: KF70.A2 https://www.govinfo.gov/app/details/FR-2009-04-24 P0b002ee18001c1c1 0097-6326 0042-1219 0364-1406 769-004-00000-9 000582072 f:FR24AP09 https://www.govinfo.gov/app/details/FR-2009-04-24 https://www.govinfo.gov/content/pkg/FR-2009-04-24/pdf/FR-2009-04-24.pdf https://www.govinfo.gov/content/pkg/FR-2009-04-24/xml/FR-2009-04-24.xml fdlp 18621 18976 DGPO 2009-04-24 2024-06-05 FR-2009-04-24 machine generated eng FR FR-2009-04-24 74 78