Laws & Regulations
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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.
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Requirements for In-Use Emissions Testing for Clean Diesel Technology
In-use testing is used to verify the field performance of products that are on the List of Verified Technology.
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Aerodynamic Wind Tunnel Testing for SmartWay Verification
This document provides information on the wind tunnel test method used for SmartWay verification of aerodynamic devices.
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Emission Trading Results
A summary of the results of emissions trading programs since the start of the Acid Rain Program in 1990.
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Proposed State Budgets under the Proposed Supplemental Interstate Transport Rule
Proposed State Budgets under the Proposed Supplemental Interstate Transport Rule
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NPDES Permit for Denali National Park Front Country Wastewater Treatment Plant in Alaska
EPA's NPDES wastewater permit for the Denali National Park Front Country Wastewater Treatment Lagoon in Alaska.
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Personal Social Media and the Hatch Act for Lesser Restricted Employees
Learn about what the hatch act saying about Lesser Restricted Employees managing their personal social media accounts during a lapse of appropriations (shutdown).
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EPA-Approved Northern Sonoma County Air District Regulations in the California SIP
EPA approved and compiled rules and regulations for the Northern Sonoma County Air Pollution Control District (APCD) portion of the California State Implementation Plan (SIP).
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Regulatory Impact Analysis for the Review of the Clean Power Plan: Proposal
Regulatory Impact Analysis for the Review of the Clean Power Plan: Proposal
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EPA-Approved Imperial County Air Pollution Control District Regulations in the California SIP
EPA approved and compiled rules and regulations for the Imperial County Air Pollution Control District (APCD) portion of the California State Implementation Plan (SIP).
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Personal Social Media and the Hatch Act for Further Restricted Employees
Learn about what the hatch act saying about Further Restricted Employees managing their personal social media accounts during a lapse of appropriations (shutdown).
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EPA announces $48 million for southeastern states to repair water systems impacted by Hurricane Helene
EPA announces $48 million for southeastern states to repair water systems impacted by Hurricane Helene