Laws & Regulations
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Nitrogen Dioxide Designations - Lytton Rancheria of California Tribal Recommendation and EPA Response
2010 Nitrogen dioxide (NO2) standards. Lytton Rancheria of California Tribal recommendation and EPA response.
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Nitrogen Dioxide Designations - Illinois State Recommendations and EPA Response
2010 Nitrogen dioxide (NO2) standards. Illinois state recommendation and EPA response.
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Nitrogen Dioxide Designations - South Carolina State Recommendations and EPA Response
2010 Nitrogen dioxide (NO2) standards. South Carolina state recommendations and EPA response.
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National Ambient Air Quality Standards (NAAQS) for Lead (Pb) Fact Sheets and Additional Information
This page contains a variety of fact sheets and other documents that are supplementary to the November 2008 Lead (Pb) National Ambient Air Quality Standards (NAAQS).
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EPA Region 8 Lead Service Line Inventory Template
Lead Service Line Inventory Template - This spreadsheet template may be used by public water systems in Wyoming and on EPA R8 Tribal Lands for service line inventories.
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Louisiana SIP History
Louisiana SIP: SIP Map/History
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TSCA Chemical Data Reporting Fact Sheet: Byproducts Reporting for the Printed Circuit Board Industry
This fact sheet provides information on existing Chemical Data Reporting (CDR) rule requirements related to byproducts reporting by persons who manufacture printed circuit boards and may be subject to CDR.
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Final Renewable Fuels Standards Rule for 2023, 2024, and 2025
EPA finalizes volume requirements and percentage standards under the Renewable Fuel Standard (RFS) program for 2023, 2024, and 2025.
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June 2022 Denial of Petitions for RFS Small Refinery Exemptions
EPA denies all pending small refinery exemptions (SRE) petitions under the Renewable Fuel Standard (RFS) program.
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Combining Data into Complete eMotor ALPHA Maps
The National Center for Advanced Technology (NCAT), part of the National Vehicle and Fuel Emissions Laboratory (NVFEL), assesses the effectiveness of advanced low emission and low fuel consumption technologies for a broad range of electric motors (eMotor).
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Public Data on Gasoline Fuel Quality Properties
This application provides data on gasoline fuel properties and how they have been trending over time due to both EPA standards and shifts in market dynamics.
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Regulations for Greenhouse Gas (GHG) Emissions
This page provides links to GHG regulations.
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Organic Gas Speciation Profile for Aircraft
EPA regulations related to nitrogen oxide air pollution from aircraft.
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Emissions Modification for Generation 1.2 SUV of the 3.0 Liter Subject Vehicles
Letter from EPA and CARB approving defendants' (VW) proposed emissions modifications: for Generation 1.2 SUV of the 3.0 Liter VW Touareg and Audi Q7 Diesel Vehicles. (July 13, 2018)
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Safety-Kleen Systems in Denton, Texas
Site Specific page for Safety-Kleen Denton
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Tribal NSR Implementation in EPA's South Central Region
Air permitting in EPA's South Central region, Region 6; serving Arkansas, Louisiana, New Mexico, Oklahoma, Texas and 66 Tribes
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Open Data Plan
EPA's Open Data Plan describes how EPA makes available and shares data as required by the OPEN Government Data Act.
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Tennessee Proposed Title V Permits
The following permits have been submitted to EPA Region 4 as Proposed Title V permits. While EPA has the right to a 45-day review period for all Proposed Title V permits, EPA Region 4 targets only a subset of these permits for comprehensive review.
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Documents Supporting or Relating to Assumable Waters Subcommittee Activities
Documents Supporting or Relating to Assumable Waters Subcommittee Activities