United States
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Availability of Emission Offset Credits from Cinergy's Noblesville Station
This document may be of assistance in applying the New Source Review (NSR) air permitting regulations including the Prevention of Significant Deterioration (PSD) requirements. This document is part of the NSR Policy and Guidance Database.
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Response to Request For EPA-Region I's Determination on the Applicability of it's Regulations and the Clean Air Act Amendments of 1990 to the Montachusett Regional Recycling Facility
This document may be of assistance in applying the New Source Review (NSR) air permitting regulations including the Prevention of Significant Deterioration (PSD) requirements. This document is part of the NSR Policy and Guidance Database. Some documents in
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Determining the Ambient Air Boundary for Potential Permit Application in Support of Alaska Industrial Development and Export Authority's Restart of Healy Clean Coal Project
This document may be of assistance in applying the New Source Review (NSR) air permitting regulations including the Prevention of Significant Deterioration (PSD) requirements. This document is part of the NSR Policy and Guidance Database.
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Administrator's Decision on PSD Issue -- Review of New Source's Ability to Meet BACT
This document may be of assistance in applying the New Source Review (NSR) air permitting regulations including the Prevention of Significant Deterioration (PSD) requirements. This document is part of the NSR Policy and Guidance Database.
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De minimis Values for NOx RACT
This document may be of assistance in applying the New Source Review (NSR) air permitting regulations including the Prevention of Significant Deterioration (PSD) requirements. This document is part of the NSR Policy and Guidance Database.
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BP American Production Company's Florida River Compression Facility Single Source Determination
This document may be of assistance in applying the New Source Review (NSR) air permitting regulations including the Prevention of Significant Deterioration (PSD) requirements. This document is part of the NSR Policy and Guidance Database.
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Determining Baseline Emissions at Mississippi Power Company's Watson Electric Generating Station
This document may be of assistance in applying the New Source Review (NSR) air permitting regulations including the Prevention of Significant Deterioration (PSD) requirements. This document is part of the NSR Policy and Guidance Database.
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Applicability Determination Regarding the Proposed Replacement and Reconfiguration of the High Pressure Section of Two Steam Turbines at Detroit Edison's Monroe Power Plant
This document may be of assistance in applying the New Source Review (NSR) air permitting regulations including the Prevention of Significant Deterioration (PSD) requirements. This document is part of the NSR Policy and Guidance Database. Some documents in
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EPA's Response to Eastman Chemical Company's Request that EPA Reconsider Prior Source Determinations
This document is part of the NSR Policy and Guidance Database and the Ttile V Policy and Guidance Database
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Lead Service Line Identification Test Bed
EPA researchers installed a test bed at EPA’s Edison Environmental Center in New Jersey to test emerging and commercially available, minimally invasive lead service line identification technologies.
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Title V Petition Database
List of Title V petitions and responses.
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Ambassadors List
List of OGC Ambassadors
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Petroleum Refining Effluent Guidelines Studies and Guidance
Studies about wastewater discharges from the petroleum refining industry; guidance documents about existing regulations for refineries
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Enterprise Data Catalog
The Enterprise Data Catalog homepage, EPA's inventory of data assets.
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Model Attorney General's Opinion
This document may be of assistance in applying the Title V air operating permit regulations. This document is part of the Title V Policy and Guidance Database.
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No Action Assurance Regarding EPA-Issued Step 2 Prevention of Significant Deterioration Permits and Related Title V Requirements Following Utility Air Regulatory Group v. Environmental Protection Agency
This document may be of assistance in applying the Title V air operating permit regulations. This document is part of the Title V Policy and Guidance Database.
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Citizen's Petition for Administrator's objection to the issuance of ADEQ Air Quality Permit # 1000383
This document may be of assistance in applying the Title V air operating permit regulations. This document is part of the Title V Petition Database.
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Revised Policy on Exclusions from "Ambient Air"
This document is part of the NSR Policy and Guidance Database
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No Action Assurance Regarding EPA-Issued Step 2 Prevention of Significant Deterioration Permits and Related Title V Requirements Following Utility Air Regulatory Group v. Environmental Protection Agency
This document may be of assistance in applying the New Source Review (NSR) air permitting regulations including the Prevention of Significant Deterioration (PSD) requirements. This document is part of the NSR Policy and Guidance Database.
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2026 Discharge Monitoring Report - Quality Assurance (DMR-QA) Study 46
This letter initiates the 2025 Discharge Monitoring Report - Quality Assurance (DMR-QA) Study 45