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FR Air Documents
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
- Standards of Performance for Stationary Spark Ignition Internal Combustion Engines and National Emission Standards for Hazardous Air Pollutants for Reciprocating Internal Combustion Engines | PDF Version (684K, About PDF)
- Approval and Promulgation of Air Quality Implementation Plans; Nevada; Washoe County 8-Hour Ozone Maintenance Plan | PDF Version (172K, About PDF)
- Approval and Promulgation of Air Quality Implementation Plans; Nevada; Washoe County 8-Hour Ozone Maintenance Plan | PDF Version (86K, About PDF)
- Approval and Promulgation of Air Quality Implementation Plans; Designation of Areas for Air Quality Planning Purposes; Arizona; San Manuel Sulfur Dioxide State Implementation Plan and Request for Redesignation to Attainment | PDF Version (219K, About PDF)
- Approval and Promulgation of Air Quality Implementation Plans; Designation of Areas for Air Quality Planning Purposes; Arizona; San Manuel Sulfur Dioxide State Implementation Plan and Request for Redesignation to Attainment | PDF Version (69K, About PDF)
- Official Release of EMFAC2007 Motor Vehicle Emission Factor Model for Use in the State of California | PDF Version (112K, About PDF)
- Environmental Impact Statements and Regulations; Availability of EPA Comments | PDF Version (66K, About PDF)