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Clean Air Mercury Rule

(Docket#OAR-2002-0056 )

Legacy docket A-92-55 index    


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Announcements

On February 8, 2008, the D.C. Circuit vacated EPA's rule removing power plants from the Clean Air Act list of sources of hazardous air pollutants. At the same time, the Court vacated the Clean Air Mercury Rule. EPA is reviewing the Court's decisions and evaluating its impacts.

On May 31, 2006, Administrator Johnson signed the Federal Register notice that completes the Agency's action on the petitions to reconsider the Clean Air Mercury Rule. In response to the petitions for reconsideration, EPA reaffirmed its approach for regulating mercury emissions from power plants and made technical changes and clarifications to the Clean Air Mercury Rule. Today's action responds to petitioners' requests for changes to certain aspects of two mercury-related actions: (1) EPA's decision that it is neither necessary nor appropriate to regulate power plant mercury emissions under section 112 of the Clean Air Act (called the Section 112(n) Revision Rule) and (2) the cap-and-trade Clean Air Mercury Rule. After carefully considering the petitions and the information that was submitted during the public comment period, EPA has determined that its original determination as presented in the final Section 112(n) Revision Rule was correct and is reaffirming the March 29, 2005 action. With regard to Clean Air Mercury Rule, EPA is making two technical changes to the rule and finalizing language reaffirming that municipal waste combustors and certain industrial boilers are not covered under this rule.



Rule Information

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Rule Information Technical Information Implementation Information

Proposed and Promulgated Rules

Emission Standards for Electric Utility Steam Generating Units

Date Citation Action Description  
4/25/07 72 FR 20465 Proposal Revisions to Definition of Cogeneration Unit in Clean Air Interstate Rule (CAIR), CAIR Federal Implementation Plan, Clean Air Mercury Rule (CAMR), and CAMR Proposed Federal Plan; Revision to National Emission Standards for Hazardous Air Pollutants for Industrial, Commercial, and Institutional Boilers and Process Heaters; and Technical Corrections to CAIR and Acid Rain Program Rules
12/26/06 71 FR 77336 Public Hearing Public Hearing for Revisions of Standards of Performance for New and Existing Stationary Sources; Electric Utility Steam Generating Units; Federal Plan Requirements for Clean Air Mercury Rule; and Revisions of Acid Rain Program Rules
12/22/06 71 FR 77099 Proposed Revisions of Standards of Performance for New and Existing Stationary Sources; Electric Utility Steam Generating Units; Federal Plan Requirements for Clean Air Mercury Rule; and Revisions of Acid Rain Program Rules; Proposed Rule
12/14/06 71FR75117 Final Notice of Finding That Certain States Did Not Submit Clean Air Mercury Rule (CAMR) State Plans for New and Existing Electric Utility Steam Generating Units and Status of Submission of Such Plans  
6/09/06 71FR33388 Final Standards of Performance for New and Existing Stationary Sources: Electric Utility Steam Generating Units: Final Notice of Reconsideration
10/28/05 70FR62213 Proposed Standards of Performance for New and Existing Stationary Sources: Electric Utility Steam Generating Units: Notice of reconsideration of final rule; request for public comment; notice of public hearing.
10/28/05 70FR62200 Proposed Revision of December 2000 Regulatory Finding on the Emissions of Hazardous Air Pollutants From Electric Utility Steam Generating Units and the Removal of Coal- and Oil-Fired Electric Utility Steam Generating Units from the Section 112(c) List: Notice of reconsideration of final rule; request for public comment; notice of public hearing.
08/30/05 70 FR 51266 Correction Standards of Performance for New and Existing Stationary Sources: Electric Utility Steam Generating Units: Final Rule: Correction
06/07/05 70 FR 33000 Correction Revision of December 2000 Regulatory Finding on the Emissions of Hazardous Air Pollutants From Electric Utility Steam Generating Units and the Removal of Coal- and Oil-Fired Electric Utility Steam Generating Units From the Section 112(c) List-Final Rule Correction
05/18/05 70 FR 28606 Final Standards of Performance for New and Existing Stationary Sources: Electric Utility Steam Generating Units; Final Rule
03/29/05 70 FR 15993 Final Revision of December 2000 Regulatory Finding on the Emissions of Hazardous Air Pollutants From Electric Utility Steam Generating Units and the Removal of Coal- and Oil-Fired Electric Utility Steam Generating Units From the Section 112(c) List; Final Rule
12/01/04 69 FR 69864 Notice Proposed National Emission Standards for Hazardous Air Pollutants; and, in the Alternative, Proposed Standards of Performance for New and Existing Stationary Sources, Electric Utility Steam Generating Units: Notice of Data Availability
05/05/04 69 FR 25052 Proposed Reopening of the Comment Period for the Proposed National Emission Standards for Hazardous Air Pollutants; and, in the Alternative, Proposed Standards of Performance for New and Existing Stationary Sources: Electric Utility Steam Generating Units
03/16/04 69 FR 12397 Proposed Supplemental Notice for the Proposed National Emission Standards for Hazardous Air Pollutants for Electric Utility Steam Generating Units
01/30/04 69 FR 4652 Proposed National Emission Standards for Hazardous Air Pollutants; and, in the Alternative, Proposed Standards of Performance for New and Existing Stationary Sources: Electric Utility Steam Generating Units; Proposed Rule

NOTE:  All files are Government Printing Office (GPO) Federal Register files unless otherwise indicated.
You can also access full text of the Code of Federal Regulations at GPO e-CFR.

Supplementary Notes on Proposal

Public Hearing

03/17/04 SNPR public hearing and extension of public comment period
02/09/04 Public Hearing Specifics
02/02/04 Notice of public hearing

Closely Related Rules, Policies or Program Guidance

Other

Archived Rule Development Background


BACK

Technical Information

On February 8, 2008, the D.C. Circuit vacated EPA's rule removing power plants from the Clean Air Act list of sources of hazardous air pollutants. At the same time, the Court vacated the Clean Air Mercury Rule. EPA is reviewing the Court's decisions and evaluating its impacts.

Technical Support Documents for Proposed Revisions to Cogeneration Definition in CAIR, CAIR FIP, CAMR, and Proposed CAMR Federal Plan

4/19/07 Technical Support Document for the Revisions to Definition of Cogeneration Unit in Clean Air Interstate Rule (CAIR), CAIR Federal Implementation Plan, Clean Air Mercury Rule (CAMR), and CAMR Proposed Federal Plan; Revision to National Emission Standards for Hazardous Air Pollutants for Industrial, Commercial, and Institutional Boilers and Process Heaters; and Technical Corrections to CAIR and Acid Rain Program Rules (Docket Number EPA-HQ-OAR-2007-0012)
4/23/07 APPENDIX B- The List of Identified Biomass Cogeneration Units Potentially Affected by the Proposal in CAIR and CAMR Regions

Technical Information / Response to Comments for Reconsideration of Clean Air Mercury Rule

5/31/06 Clean Air Mercury Rule Response to Comments Document
5/31/06 New Source Performance Standards
5/31/06 Revised Final Oil Documentation
5/31/06 Test Coal vs Year Coal
5/31/06 Revised State Mercury Budgets
5/31/06 Budget Equity Analysis
5/31/06 Summary Deposition Table  
10/21/05 Reconsideration TSD
10/21/05 Cost and Energy Impacts

Technical Information/Response to Comments for Final Clean Air Mercury Rule

03/15/05 Air Quality Modeling (Air Quality TSD)
03/17/05 Methodology to Generate Deposition, Fish Tissue Methylmercury Concentrations, and Exposures for Determining Effectiveness of Utility Emission Controls (Effectiveness TSD)(Revised 3/17/05)
03/15/05 Methodology to Generate Deposition, Fish Tissue Methylmercury Concentrations, and Exposures for Determining Effectiveness of Utility Emission Controls (Effectiveness TSD)(Original)
03/15/05 Methodology to Generate Deposition, Fish Tissue Methylmercury Concentrations, and Exposures for Determining Effectiveness of Utility Emission Controls (Effectiveness TSD) - Appendix A
03/15/05 State and Indian Country Emissions Budgets
03/15/05 Assumptions used in sensitivity analysis for the Clean Air Mercury Rule (Sensitivity TSD)
03/15/05 Control of Mercury Emissions from Coal Fired Electric Utility Boilers: An Update (ORD White Paper)
03/15/05 Small Entities Analysis
03/15/05 UMRA Analysis
03/15/05 Statistical Analysis of Mercury Test Data to Determine BDT for Mercury Emissions (New-source NSPS TSD)
03/15/05 Analysis of operating oil-fired electric utility steam generating units (Oil-fired TSD)
03/15/05 Revision of section 112 Response to Comments
03/15/05 Emissions Inventory and Emissions Processing for the Clean Air Mercury Rule (Emissions Inventory TSD)
03/15/05 Response to Comments on the Proposed Clean Air Mercury Rule (Section 111)
03/15/05 Final CAMR Unit Hg Allocations

Regulatory Impact Analysis for Final Clean Air Mercury Rule

03/15/05 Regulatory Imapct Analysis of the Clean Air Mercury Rule

Technical Support Document/Response to Comments for Proposed Clean Air Mercury Rule

04/05/04 Allocation Adjustment Factors-Revisions
03/10/04 Allocation Adjustment Factors
02/27/04 Control of Mercury Emissions from Coal-fired Electric Utility Boilers
02/09/04 MACT Floor Variability Errata
12/15/03 MACT Floor
12/15/03 MACT Floor Unit Conversions
12/15/03 MACT Beyond-the-floor
12/15/03 Cost and impacts
12/15/03 Emission Estimates for Costing
11/26/03 MACT Floor Variability

Questions and Answers

FACT Sheets

10/21/05 FACT SHEET Revision of December 2000 Regulatory Finding on the Emissions of Hazardous Air Pollutants From Electric Utility Steam Generating Units and the Removal of Coal- and Oil-Fired Electric Utility Steam Generating Units from the Section 112(c) List: Reconsideration
10/21/05 FACT SHEET Standards of Performance for New and Existing Stationary Sources: Electric Utility Steam Generating Units: Reconsideration
01/29/04 FACT SHEET EPA Proposes Options for Significantly Reducing Mercury Emissions from Electric Utilities

Inventory and Emissions Databases

04/05/04 State Mercury Allocations - Revisions
04/05/04 Unit Mercury Allocations - Revisions
03/17/04 Hg Speciation Excel File - correction
03/10/04 State Mercury Allocations
03/10/04 Unit Mercury Allocations
02/18/04 1996 Oil-fired HEM data and risk assessment
12/15/03 MACT Floor Excel file
12/15/03 Hg Speciation Excel file
12/15/03 Cost Impacts-Hg Coal Excel file
12/15/03 Cost Impacts-Ni Oil Excel file
12/15/03 ESP Oil Excel file
11/26/03 MACT Floor Variability Excel file

Regulatory Impact Analysis

01/2004 MACT Benefit Analysis
12/28/04 MACT Economic Analysis
12/15/03 MACT Reg Flex Analysis

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