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Clean Air Mercury Rule (3/29/05)

On March 15, 2005, EPA issued the Clean Air Mercury Rule (CAMR) designed to reduce mercury emissions from coal-fired utility boilers. The Rule creates a cap-and-trade program that will be implemented in two phases. Phase 1 caps mercury emissions at 38 tons per year (tpy) in 2010 and phase 2 caps mercury emissions at 15 tpy in 2018. 40 CFR Part 75 serves as the foundation of the CAMR monitoring, recordkeeping and reporting requirements. For existing units that commence commercial operation before July 1, 2008, mercury monitoring systems must be installed and certified no later than January 1, 2009.

CAMR highlights include, but are not limited to:

  • Creates Subpart HHHH of 40 CFR Part 60 which establishes the model rule provisions for the mercury budget trading program for coal-fired utility boilers.
  • Incorporates Performance Specification 12A for mercury CEMS in Appendix B of 40 CFR Part 60.
  • Revises 40 CFR Part 75 to incorporate mercury monitoring, recordkeeing and reporting requirements where applicable. This includes missing data substitution procedures, QA/QC requirements, quarterly reporting, etc.
  • Creates Subpart I of 40 CFR Part 75 which establishes the mercury mass emission provisions.
  • Introduces Appendix K of 40 CFR Part 75 which establishes the procedures for operating a sorbent trap monitoring system to determine mercury mass emissions.
  • Revises Subpart Da of 40 CFR Part 60 by establishing stringent mercury emissions limits in addition to the trading program "caps" for new units (i.e., unit construction on or before January 30, 2004). Emission limits are set according to fuel type (e.g., 21 x 10-6 lb mercury/megawatt hour for bituminous coal-fired units) and compliance is determined on a 12-month rolling average basis.

A copy of CAMR is located in our FTP Library. For more information concerning RMB’s mercury related consulting services, please contact Ralph Roberson at (919) 510-0376.

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RMB Consulting & Research, Inc.
Last Revised: March 31, 2005