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Cross-State Air Pollution Rule (CSAPR)

Technical Information and Support Documents

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You will need Microsoft Excel to view the Excel spreadsheet files on this page. Microsoft offers a Free Excel Viewer exit EPA if you don't own Excel.

Final Cross-State Air Pollution Rule (CSAPR) Revisions and Direct Final Rules

Technical Support Documents for the Final June CSAPR Revisions Rule

Technical Support Documents for the Final February CSAPR Revisions Rule

Technical Support Documents for the CSAPR Direct Final Rule

Disclaimer: The official version of these documents will be in the docket when the rule is published in the Federal Register.

Final Cross-State Air Pollution Rule (CSAPR) and Supplemental Rulemaking

EPA analyzed the impact of the final Cross-State Air Pollution Rule (CSAPR) on the U.S. electric power sector using the Integrated Planning Model (IPM). Modeling results and documentation can be downloaded from EPA's IPM website.

Technical Support Documents for the Supplemental Notice of Final Rulemaking (SNFR):

Technical Support Documents for the Final Cross-State Air Pollution Rule (CSAPR) and the Supplemental Notice of Proposed Rulemaking (SNPR):

*For annual SO2 and NOX allocations, tables include sources located in states covered by the CSAPR. For ozone-season allocations, tables include sources located in states covered by the final CSAPR as well as the 6 states that are included in the Supplemental Notice of Proposed Rulemaking for ozone-season NOX emission reductions.

Disclaimer: The official version of these documents will be in the docket when the rule is published in the Federal Register.

Proposed Revisions to the Cross-State Air Pollution Rule (CSAPR)

Proposed Transport Rule


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