Laws & Regulations
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December 2019 - Proposed Revisions to Testing Regulations for Air Emission Sources
December 2019 - Proposed Revisions to Testing Regulations for Air Emission Sources
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December 2019 - Fact Sheet - Proposed Test Method updates
December 2019 - Fact Sheet - Proposed Test Method updates
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Method 19 - Sulfur Dioxide Removal and Particulate, Sulfur Dioxide and Nitrogen Oxides from Electric Utility Steam Generators
CFR Promulgated Test Method 19 Determination of sulfur dioxide removal efficiency and particulate, sulfur dioxide and nitrogen oxides emission rates.
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Method 323 - Formaldehyde Measurement Using Derivitization
Promulgated CFR Test Method 323—Measurement of Formaldehyde Emissions From Natural Gas-Fired Stationary Sources—Acetyl Acetone Derivitization Method
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PotlatchDeltic Land and Lumber LLC, St. Maries Complex - Title V Air Quality Operating Permit
Title V air operating permit issued to PotlatchDeltic Land and Lumber LLC for its wood products facility located in St. Maries, Idaho on the Coeur d'Alene Reservation.
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CAA Permitting in EPA's Pacific Southwest (Region 9)
Clean Air Act permitting in EPA's Pacific Southwest region, Region 9; serving Arizona, California, Hawaii, Nevada, Pacific Island Territories and 148 Tribal Nations.
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CAA Permitting in EPA's Pacific Northwest Region
Air permitting in EPA's Pacific Northwest office, serving Alaska, Idaho, Oregon, and Washington and tribal nations.
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Results using EPA’s Power Sector Modeling Platform v6 - May 2018
Download EPA's IPM v6 including documentation, overview, System Summary Report, .DAT, .RPE, .RPT files, Gas Report, State Level Emissions, Generation and Heat Input Summary.
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Lake Pontchartrain Basin Restoration Program Meetings
LPB stakeholders meeting information
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Analysis of the Revised Cross-State Air Pollution Rule Update
IPM analyses of the Revised Cross-State Air Pollution Update Rule.
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Analysis of the Proposed Revised Cross-State Air Pollution Rule Update
IPM analyses of the Revised Cross-State Air Pollution Update Rule.
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IPM Run Files for Supporting Scenarios
Download Integrated Planning Model (IPM) run files for the scenarios supporting development of the Clean Power Plan.
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Results using EPA’s Power Sector Modeling Platform v6 - May 2019 Reference Case
Download EPA's IPM v6 including documentation, overview, System Summary Report, .DAT, .RPE, .RPT files, Gas Report, State Level Emissions, Generation and Heat Input Summary.
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Best Practices
Guidance and best practices for practitioners who are considering implementation of an emissions trading program.
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Key Terms
Definitions of common terms in emissions trading.
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Emissions Trading Programs
Emissions trading programs including both EPA and state and regional programs.
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Emissions Trading
Learn about emissions trading programs, also known as cap and trade programs, which are market-based policy tools for protecting human health and the environment by controlling emissions from a group of sources.
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Air Permits Issued By EPA Region 10
Clean Air Act permits issued by EPA's Region 10 office for facilities in Alaska, Idaho, Oregon, and Washington.
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About Green Infrastructure
Green infrastructure may be used to comply with CWA requirements, treat stormwater, improve water quality, and mitigate flooding while also beautifying our communities.