Cross-State Air Pollution Rule (CSAPR)
Resources for Implementation
November 16, 2015 – EPA proposed the CSAPR Update Rule to address interstate transport of air pollution under the 2008 ozone NAAQS
The Cross-State Air Pollution Rule (CSAPR) requires states to significantly improve air quality by reducing power plant emissions that cross state lines and contribute to ozone and fine particle pollution in other states. In a separate, but related, regulatory action, EPA finalized a supplemental rulemaking on December 15, 2011 to require five states - Iowa, Michigan, Missouri, Oklahoma, and Wisconsin - to make summertime NOX reductions under the CSAPR ozone season control program. CSAPR requires a total of 28 states to reduce annual SO2 emissions, annual NOX emissions and/or ozone season NOX emissions to assist in attaining clean air standards. To speed implementation, EPA adopted Federal Implementation Plans, or FIPs, for each of the states covered by this rule. EPA is encouraging states to submit State Implementation Plans (SIPs).
- Applicability Determinations (CSAPR)
- Archived CAIR Applicability Determinations
- CSAPR Title V Permit Guidance for States (transmittal memo, instructions, monitoring tables, and regulatory language) (PDF 24 pp., 2 MB) Updated May 14, 2015
- CSAPR Title V Permit Guidance for States (monitoring tables and regulatory language only) (Word 20 pp., 46 KB) Updated May 14, 2015
- CSAPR Implementation letter to Designated Representatives (PDF 17pp) Updated November 21, 2014
- Tools for States and Regions on the Clean Air Markets Division's (CAMD) Website
- Emissions Monitoring Requirements under the Transport Rule Trading Programs (PDF 150 KB) Updated December 8, 2014
- 2016 SIP Notification Letter Format (Word 29 KB) Updated December 8, 2014
- CSAPR 2016 Allocations Template (Excel 49 KB) | Instructions (Word 31 KB) Updated December 8, 2014
- CSAPR 2016 Allocations Template for Supplemental Rule States (IA, MI, MO, OK, and WI) (Excel 47 KB) | Instructions (Word 20 KB) Updated December 8, 2014
- Allowance Allocations, Unit Level Allocations and Supplemental Rule Allocations
- Recordation of TR allowances and removal of CAIR allowances (PDF 2pp)
CSAPR 2012 and 2013 Allowance Allocation Revintaging
On October 18, 2011, EPA placed 2012 allowances for all four CSAPR programs into accounts for sources with a certified account Designated Representative (DR). On October 25, 2011, EPA placed the 2013 control period allowances in accounts of sources in states which did not indicate that they will be determining 2013 allowance allocations. As of the October 17, 2011 deadline, twelve states notified EPA that they intended to distribute 2013 CSAPR allowances to sources in their states: Alabama, Florida, Kansas, Louisiana, Maryland, Mississippi, Missouri, Nebraska, New York, Ohio, Pennsylvania, and South Carolina. To align allowance vintages with the court-ordered program timing, EPA will "re-vintage" the previously recorded 2012-vintage and 2013-vintage CSAPR allowances to 2015-vintage and 2016-vintage allowances, respectively. CAMD Business System accounts holding these allowances will be temporarily frozen for a brief period when these adjustments are carried out. CAMD will notify DRs, ADRs, and agents in advance of the specific time during which the accounts will be frozen. After the re-vintaging, EPA will record any additional allowances needed to bring the previously recorded CSAPR allowance allocations for 2012 and 2013 under those budgets up to the corresponding unit-specific allocations shown in the spreadsheet described in the NODA.
States that are included in the Cross-State Air Pollution Rule (CSAPR)
|State||Required to Reduce Emissions of NOX during the Ozone Season (1997 Ozone NAAQS)||Required to Reduce Annual Emissions of SO2 and NOX (1997 Annual PM2.5 NAAQS)||Required to Reduce Annual Emissions of SO2 and NOX (2006 24-Hour PM2.5 NAAQS)||*SO2 Group|
|Number of States||25||18||21|
* The final CSAPR divides the states required to reduce SO2 into two groups. Both groups must reduce their SO2 emissions beginning in Phase I. Group 1 states must make significant additional reductions in SO2 emissions for Phase II in order to eliminate their significant contribution to air quality problems in downwind areas.
Budgets, Variability Limits and State Assurance Levels
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You will need Microsoft Excel to view the Excel spreadsheet files on this page. Microsoft offers a Free Excel Viewer if you don't own Excel.
These updated tables incorporate all adjustments finalized in the Supplemental Notice of Final Rulemaking (December 2011), the February Revisions Rule (February 7, 2012), and the June Revisions Rule (June 5, 2012).
Changes in States' Requirements from CAIR to the CSAPR
In the CSAPR, some states have different requirements than they did under CAIR. This table shows those differences. This is not an all-inclusive list of states that are included in the CSAPR
|Requirements under the Clean Air Interstate Rule||Requirements under the Cross-State Air Pollution Rule|
|SO2||Annual NOX||Ozone Season NOX||SO2||Annual NOX||Ozone Season NOX|
|District of Columbia||Yes||Yes||Yes||No||No||No|