Proposed Endangerment Finding for Greenhouse Gases under the Clean Air Act (CAA)

Docket ID: EPA-HQ-OAR-2009-0171
Agency: Environmental Protection Agency (EPA)
The Supreme Court decision on Mass. v. EPA in April 2007, stated that carbon dioxide (CO2) meets the CAA definition of air pollution and that EPA must decide whether or not greenhouse gases cause endangerment (or whether scientific uncertainty precludes EPA from making a reasoned judgment). The basis for this decision must be the statutory criteria laid out under Section 202 of the CAA. In December 2007, EPA developed and submitted to OMB a proposal for an endangerment finding (in conjunction with a proposed GHG transportation rulemaking). It was withdrawn a few weeks later following passage of the Energy Independence and Security Act. OAR is now working to issue a proposed endangerment determination.
RIN: Not Assigned
Docket Details open glossary dialog  
Related RINs: None
Related Dockets: None
Keyword(s): Greenhouse Gas, CO2, Endangerment
Type: Rulemaking
Location: HQ-OAR
Subtype: Notification

Primary Documents

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Comment Period Closed
Jun 23, 2009 11:59 PM ET
Proposed Rule
Posted: 04/24/2009
ID: EPA-HQ-OAR-2009-0171-0001
Comments Not Accepted
Posted: 08/13/2010
ID: EPA-HQ-OAR-2009-0171-12032
Comments Not Accepted
Posted: 12/15/2009
ID: EPA-HQ-OAR-2009-0171-11683

Supporting Documents

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Comments Not Accepted
Supporting & Related Material
Posted: 09/28/2010
ID: EPA-HQ-OAR-2009-0171-12291
Comments Not Accepted
Supporting & Related Material
Posted: 08/16/2010
ID: EPA-HQ-OAR-2009-0171-12255
Comments Not Accepted
Supporting & Related Material
Posted: 08/13/2010
ID: EPA-HQ-OAR-2009-0171-12154


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Comments Received*
*This count refers to the total comment/submissions received on this docket, as of 11:59 PM yesterday. Note: Agencies review all submissions, however some agencies may choose to redact, or withhold, certain submissions (or portions thereof) such as those containing private or proprietary information, inappropriate language, or duplicate/near duplicate examples of a mass-mail campaign. This can result in discrepancies between this count and those displayed when conducting searches on the Public Submission document type. For specific information about an agency’s public submission policy, refer to its website or the Federal Register document.