Cross-State Air Pollution Final and Proposed Rules

On July 6, 2011 the US Environmental Protection Agency (EPA) finalized the Cross-State Air Pollution Rule (CSAPR), limiting the interstate transport of emissions of nitrogen oxides (NO_X) and sulfur dioxide (SO₂) that contribute to harmful levels of fine particle matter (PM_2.5) and ozone in downwind states.

July 6, 2011: Final Cross-State Air Pollution Rule (CSAPR)

EPA finalized a rule that protects the health of millions of Americans by helping states reduce air pollution and meet Clean Air Act Standards. The Cross-State Air Pollution Rule (CSAPR) requires eastern and central states to significantly improve air quality by reducing power plant emissions that cross state lines and contribute to ground-level ozone and fine particle pollution in other states.

In a separate but related regulatory action, EPA also issued a supplemental notice of proposed rulemaking to require six states: Iowa, Kansas, Michigan, Missouri, Oklahoma, and Wisconsin to make summertime NO_X reductions under the CSAPR ozone-season control program.

EPA also issued a "Notice of Data Availability Concerning Transport Rule Allowance Allocations to Existing Units" informing the public of the availability of detailed unit-by-unit data, calculations, and allowance allocation determinations in a technical support document for the final Cross State Air Pollution Rule.

Federal Implementation Plans: Interstate Transport of Fine Particulate Matter and Ozone and Correction of SIP Approvals (76 FR 48208) (pdf) (2.76 MB, August 8, 2011)
Fact Sheet for The Cross-State Air Pollution Rule: Reducing the Interstate Transport of Fine Particulate Matter and Ozone (pdf) (137.62 KB)
Presentation: CSAPR Reducing Air Pollution, Protecting Public Health (pdf) (3.05 MB, December, 2011) – Updated December 15, 2011 to reflect the final supplemental rule for CSAPR, the proposed technical revisions rule, recent implementation activities, and other information.
Regulatory Impact Analysis for the Federal Implementation Plans to Reduce Interstate Transport of Fine Particulate Matter and Ozone in 27 States; Correction of SIP Approvals for 22 States (pdf) (7.53 MB, June 2011)

Technical Support Documents

Final June Revisions Rule Significant Contribution Assessment TSD (pdf) (88.08 KB, June 2012)
Allowance Allocation Final Rule TSD (pdf) (344.34 KB)
- * Final CSAPR Unit Level Allocations under the FIPs (pdf) (406.09 KB)
- * Final CSAPR Unit Level Allocations under the FIP and Underlying Data (xls) (4.09 MB, 2011)
  *For annual SO₂ and NO_X 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 NO_X emission reductions.
Assurance Penalty Level Analysis Final Rule TSD (pdf) (321.07 KB, June 2011)
Status of Clean Air Act (CAA) 110(a)(2)(D)(i)(I) SIPs Final Rule TSD (pdf) (90.96 KB, July 2011)
Status of 110(a)(2)(D)(i)(I) SIPs Proposed Rule TSD (pdf) (51.2 KB)
Power Sector Variability Final Rule TSD (pdf) (817.82 KB, July 2011)
Revised Capacity Factors Analysis for New Units (pdf) (126.09 KB, June 2011)
Resource Adequacy and Reliability in the IPM Projections for the Transport Rule TSD (pdf) (551.26 KB, June 2011)
Emissions Inventory Final Rule TSD (pdf) (2.34 MB, June 28, 2011)
- 2012 Projection (xlsx) (4.37 MB)
- 2012 Projection (pdf) (5.7 MB)
- 2014 Projection (xlsx) (5.86 MB)
- 2014 Projection (pdf) (8.24 MB)
- Transport Rule Final Emissions Summaries (xlsx) (1.13 MB)
- Transport Rule Final Emissions Summaries (pdf) (1.06 MB)
- Emissions Inventory Final Rule Technical Support Document: Appendices (pdf) (902.6 KB)
Air Quality Modeling Final Rule Technical Support Document (pdf) (11.12 MB, June 2011)
- Average and maximum design values by monitoring site for 8-hour ozone, annual PM2.5, and 24-hour PM2.5 for the 2003-2007 base period, the 2012 base case, and the 2014 base and CSAPR control scenario (xls) (360 KB, June 2011)
- Contributions of 8-hour ozone, annual PM2.5, and 24-hour PM2.5 from each state to each monitoring site (xls) (1.38 MB, June 2011)

January 7, 2011: Notice of Data Availability

EPA issued a "Notice of Data Availability For Federal Implementation Plans To Reduce Interstate Transport of Fine Particulate Matter and Ozone: Request for Comment on Alternative Allocations, Calculation of Assurance Provisions Allowance Surrender Requirements, New-Unit Allocations in Indian Country and Allocations by States."

Notice of Data Availability for Federal Implementation Plans To Reduce Interstate Transport of Fine Particulate Matter and Ozone: Request for Comment (76 FR 1109) (pdf) (200.58 KB, January 7, 2011)
Fact Sheet: EPA NODA Requesting Comment on Alternative Allocation Methods and Related Matters in the Transport Rule (pdf) (30.28 KB)
Alternative Allocation Tables and Underlying Data (pdf) (4.5 MB, January 7, 2011) – Revised on 1/7/11 to correct minor calculation error in option 2 Ozone Season NOx allocations in the prepublication version.

October 27, 2010: Notice of Data Availability

Emissions inventories data supporting the CSAPR were made available for review.

September 1, 2010: Notice of Data Availability

EPA announced a Notice of Data Availability Supporting the Proposed Transport Rule

August 19 - September 1, 2010: Public Hearings

EPA held three public hearings on the proposed Transport Rule. Each hearing began at 9 a.m. and continued until 8 p.m. The public was able to preregister to speak at the hearings at a specific time, or they could register in person on the day of the hearing and were worked in to openings in the schedule of speakers.

Notice of Public Hearings: Federal Implementation Plans to Reduce Interstate Transport of Fine Particulate Matter and Ozone (pdf) (147.56 KB, August 2, 2010)

July 6, 2010: Proposed Cross-State Air Pollution Rule (CSAPR)

EPA proposed a rule that would significantly reduce emissions that contribute to fine particle and ozone pollution in the eastern United States.

Proposed Cross-State Air Pollution Rule (75 FR 45210) (pdf) (1.52 MB, August 2, 2010)
Note: The preamble to the proposed rule contains an error, which was corrected in a corrections notice issued on September 14, 2010 (Federal Register, 75 FR 55711). Corrections Notice: Federal Implementation Plans To Reduce Interstate Transport of Fine Particulate Matter and Ozone (75 FR 55711) (pdf) (153.18 KB, September 14, 2010)
Fact Sheet for the Proposed Cross-State Air Pollution Rule (pdf) (52.69 KB)
Presentation - Proposed Air Pollution Transport Rule (pdf) (824.38 KB)
Table: Impacts of the Proposed Transport Rule on Counties with Monitors Projected to have Ozone and/or Fine Particle Air Quality Problems (pdf) (168.9 KB)
Regulatory Impact Analysis for the Proposed Federal Transport Rule (pdf) (4.94 MB, June 2010)

Technical Support Documents:

Non-EGU Emissions Reductions Cost and Potential (pdf) (214.34 KB, May 2010)
Emissions Inventories (pdf) (553.72 KB, June 2010)
Technical Support Document: Preparation of Emissions Inventories for the Version 4, 2005-based Platform (pdf) (748.78 KB, July 7, 2010)
- Appendices (pdf) (70.72 KB)
  - EPA analyzed the impact of the proposed Transport Rule on the U.S. electric power sector using the Integrated Planning Model (IPM). Modeling Results
Other Remedy Options Evaluated (pdf) (22.2 KB, Jule 2010)
Analysis of NOx Budget Trading Program Units Brought into the CAIR NOx Ozone Season Trading Program (pdf) (115.76 KB, July 2010)
Updates to EPA Base Case v3.02 EISA Using the Integrated Planning Model (pdf) (391.53 KB, July 2010)
Electric Generation Ownership, Market Concentration and Auction Size (pdf) (55.61 KB, July 2010)
Analysis of Constellation Energy Group’s Allocation Suggestion that Uses Title IV Allowances (pdf) (30.93 KB, July 2010)
Analysis to Quantify Significant Contribution (pdf) (1.34 MB, July 2010)
Capacity Factors Analysis for New Units (pdf) (61.15 KB, July 2010)
Installation Timing for Low NOx Burners (LNB) (pdf) (14.54 KB, July 2010)
State Budgets, Unit Allocations, and Unit Emissions Rates (pdf) (68.75 KB, July 2010)
CSAPR Allocation Table July 2010 (pdf) (193.73 KB) – Note - Revised on 7/21/10 to correct calculation error in Ozone Season NO_x Rates under the Direct Control Alternative (column R). The original calculation resulted in rates 50% lower than the revised rates - no other values are impacted.
Allocation Table (xls) (1019 KB, July 21, 2010) – Note - Revised on 7/21/10 to correct calculation error in Ozone Season NO_x Rates under the Direct Control Alternative (column R). The original calculation resulted in rates 50% lower than the revised rates - no other values are impacted.
Detailed Unit-Level Data for State Budgets, Unit Allocations, and Unit Emissions Rates (xls) (27.76 MB)
State Budgets, Unit Allocations, and Unit Emissions Rates: Field Descriptions for Detailed Unit-Level Data (pdf) (43.22 KB, July 2010)
Air Quality Modeling (pdf) (4.59 MB, June 2010)
Air Quality Contributions Data File (xls) (3.66 MB, June 2010)
Power Sector Variability (pdf) (390.46 KB, July 2010)
Alternative Significant Contribution Approaches Evaluated (pdf) (119.6 KB, June 2010)