Clean Air Mercury Rule
Legacy docket A-92-55 index
last updated
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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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 |
|
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
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 |
|