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Reviewing National Ambient Air Quality Standards (NAAQS)

Sulfur Dioxide (SO2) Primary Standards -
Documents from Review Completed in 2010 -

Information provided for informational purposes only Note: EPA no longer updates this information, but it may be useful for historical purposes. See the SO2 Standards Home Page for documents from the current review of the SO2 NAAQS.

From the listing below, find the file you would like to download. The document may be available in one or more file formats, as represented by the icons on the righthand side of the listing. Click on the icon that represents the format you wish to receive.

File Description File Date File Types
Court Decision upholding the 2010 SO2 NAAQS 07/20/2012 PDF file
70 KB
Amendment to 2007 Consent Decree 12/04/2008 PDF file
42 KB
November 2007 Consent Decree with schedules for SO2 and NO2 primary NAAQS and NO2/SO2 secondary NAAQS reviews 11/19/2007 PDF file
72 KB
Notice of proposed consent decree - request for public comment 09/20/2007 PDF file
80 KB

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