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Clean Air Markets
Contact Us

Basic Information & Site Map

EPA regulates air pollution from power plants that contributes to environmental problems such as acid rain, ozone and particle pollution. EPA implements regulatory programs to achieve these environmental improvements, including the Acid Rain Program, the Cross-State Air Pollution Rule, and the Mercury and Air Toxics Standards.

To evaluate these programs, EPA monitors emissions from power plants of sulfur dioxide (SO2), nitrogen oxides (NOx), and carbon dioxide (CO2). EPA also monitors and regulates air toxics including mercury, arsenic, hydrochloric acid, and hydrofluoric acid emissions from power plants through the Mercury and Air Toxics Standards.

EPA also monitors air quality and environmental and ecological conditions through its monitoring networks, including the Clean Air Status and Trends Network (CASTNET) and the Long Term Monitoring (LTM) network. This monitoring helps assess trends in air and water quality, atmospheric deposition, and ecological effects resulting from changes in air pollution.

Quickly access data through our Data Resources page.

Learn more about the results of these programs in the Progress Report.

Browse our Frequent Questions page for answers to common questions.


Site Map

On this page:

  • Related Topics
  • Programs
  • Progress
  • Doing Business with CAMD
  • Data Resources
  • Power Sector Modeling​

Related Topics

  • Acid Rain
  • CASTNET
  • Surface Water Monitoring (LTM/TIME)
  • Cross-State Air Pollution Rule
  • eGRID
  • Emissions Trading Resources
  • Interstate Air Pollution Transport
  • Power Sector Modeling
  • Climate Change
  • Mercury
  • Sulfur Dioxide (SO2)
  • Nitrogen Oxides (NOx)
  • Carbon Dioxide (CO2)
  • Particle Pollution
  • Mercury

Programs

Clean Air Markets Programs

  • Texas SO2 Trading Program
  • NOX Budget Trading Program
  • Ozone Transport Commission NOX Budget Program
    • ​​​Ozone Transport Commission NOX Budget Program Historical Report
  • U.S. - Canada Air Quality Agreement
    • Additional Information about the U.S.-Canada Air Quality Agreement

Progress

Clean Air Markets Progress

  • Power Sector Programs – Progress Reports
  • Power Plants and Neighboring Communities
  • Power Plant Emission Trends
  • Facility Level Comparisons

Doing Business With CAMD

Doing Business with CAMD

Business Center

  • Forms
    • Allowance Transfer Signatures
  • CAMD Business System (CBS)
    • Phishing Notice - Security Enhancements
  • Part 75 Administrative Processes
  • Contacts—Business Center and Emissions Monitoring

Allowance Markets

Allowance Markets

  • Buying Allowances
  • Brokers
  • Acid Rain Program SO2 Allowance Auction
    • SO2 Allowance Auction Results (1993-2021)

Emissions Monitoring and Reporting

Emissions Monitoring Resources

  • Emissions Collection and Monitoring Plan System (ECMPS)
    • Reporting Data Using ECMPS
    • ECMPS Reporting Instructions
  • Field Audit Manual
    • Eliminating Bias
    • Control Chart Methodology
  • What is Part 75?
    • Part 75 Technical Q&A (formerly Policy Manual)
    • Part 75 Petition Responses
    • Summary of Part 75 Administrative Processes
    • Monitoring Insights and Analyses
    • Monitoring Plan Viewer
  • Emissions Monitoring and Regulatory Actions
  • Protocol Gas Verification Program / Air Emission Testing Body

FAQs for Industry, State, Federal Users

FAQs for Industry, State, Federal Users

  • CAMD Business System (CBS) FAQs
  • Allowances FAQs
  • Acid Rain Program SO2 Allowance Auction FAQs
  • Emissions Monitoring and Reporting FAQs
  • EPA and State Users Access to CBS and ECMPS FAQs
  • CAMD's Power Sector Emissions Data FAQs

Data Resources

Data Resources

  • Power Sector Emissions Data
    • CAMPD
    • Clean Air Markets API Portal (CAM API)
    • Field Audit Checklist Tool (FACT)
    • FACT API
    • eGRID
    • Power Profiler
    • EPA-EIA Data Crosswalk
  • Summary Data
    • Progress Reports
    • Power Plants and Neighboring Communities
    • Power Plant Emission Trends
    • Facility Level Comparisons
  • Allowance Data
    • CAMPD
    • Clean Air Markets API Portal (CAM API)
    • Auctions
  • Facility Attributes
    • Monitoring Plan Viewer
    • FACT / FACT API
    • CAMPD
    • eGRID
    • Clean Air Markets API Portal (CAM API)
  • Environmental Monitoring
    • CASTNET
    • Monitoring Surface Water Chemistry
      • LTM/TIME
  • Power Sector Modeling
    • NEEDs
    • IPM Modeling Platform
    • IPM Results Viewer

Power Sector Modeling

Power Sector Modeling

  • NEEDs v6
  • EPA's Power Sector Modeling Platform v6 using IPM January 2020 Reference Case
    • Results Viewer
  • Retrofit Cost Analyser
  • Contact Form

Power Sector Modeling Regulatory Applications

  • Final Revised CSAPR Update Rule
  • Proposed Revised CSAPR Update Rule
  • Final ACE Rule
  • Proposed ACE Rule
  • Final CSAPR Close-Out
  • Proposed CSAPR Close-Out
  • Notice of Data Availability: Preliminary Interstate Ozone Transport Modeling Data for the 2015 Ozone NAAQS
  • The Cross-State Air Pollution Rule Update
  • Previous Power Sector Modeling Regulatory Applications
  • Clean Air Markets Home
  • Basic Info & Site Map
  • Programs
  • Progress
  • Doing Business with CAMD
  • Data Resources
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on January 6, 2023
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