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Particulate Matter (PM) Standards -
Documents from Review Completed in 2012 -
Regulatory Impact Analysis

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

 

	File Description	File Date	File Types
	Regulatory Impact Analysis for the Final Revisions to the National Ambient Air Quality Standards for Particulate Matter	Dec 2012	10.2 MB
	Regulatory Impact Analysis for the Proposed Revisions to the National Ambient Air Quality Standards for Particulate Matter	June 2012	4.2 MB

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