Air Quality State Implementation Plans; Approval and Promulgation: Pennsylvania; Approval of the Base Year Emissions Inventory for the Liberty-Clairton Nonattainment Area for the 2006 24-Hour Fine Particulate Matter Standard and Approval of Transportation Conformity Insignificance Findings for the 1997 Annual and 2006 24-Hour Fine Particulate Matter Standards for the Liberty-Clairton Area

Air Quality State Implementation Plans; Approval and Promulgation: Pennsylvania; Approval of the Base Year Emissions Inventory for the Liberty-Clairton Nonattainment Area for the 2006 24-Hour Fine Particulate Matter Standard and Approval of Transportation Conformity Insignificance Findings for the 1997 Annual and 2006 24-Hour Fine Particulate Matter Standards for the Liberty-Clairton Area

Air Quality State Implementation Plans; Approval and Promulgation: Pennsylvania; Approval of the Base Year Emissions Inventory for the Liberty-Clairton Nonattainment Area for the 2006 24-Hour Fine Particulate Matter Standard and Approval of Transportation Conformity Insignificance Findings for the 1997 Annual and 2006 24-Hour Fine Particulate Matter Standards for the Liberty-Clairton Area
Source: EPA Regulations news 2