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Ozone (O3) Standards -
Documents from Review Completed in 2008 -
Federal Register Notices

Information provided for informational purposes only Note: EPA no longer updates this information, but it may be useful for historical purposes. See the Ozone Standards Home Page for documents from the current review of the Ozone NAAQS.
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File Date

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Final Revisions to the National Ambient Air Quality Standards for Ozone
Mar 2008 PDF file
1.2 MB
Announcing Public Hearings on Ozone Proposal
 Jul 2007 PDF file
50 KB
Proposed Revisions to National Ambient Air Quality Standards for Ozone
Jul 2007 PDF file
771 KB
Release of the second draft Staff Paper, Exposure Analysis, and Health Risk Assessment and first draft Environmental Assessment
 Jul 2006 PDF file
59 KB
Extension of public comment period on Staff Paper and related technical support documents
 Dec 2005 PDF file
55 KB
Release of first draft Staff Paper, Exposure Analysis, and Health Risk Assessment
 Nov 2005 PDF file
62 KB

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