Laws & Regulations
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SDWA Economic Analysis
This page provides information on EPA’s approach to economic analysis when developing standards for drinking water contaminants.
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2005 Petition Requesting the Administrator Object to Title V Permit for Midwest Generation - Environmental Law and Policy Center
This document is part of the Title V Petition Database.
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2005 Petition Requesting the Administrator Object to Title V Permit for Midwest Generation - Citizens Against Ruining the Environment Petition
This document is part of the Title V Petition Database.
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2005 Petition Requesting the Administrator Object to Title V Permit for Midwest Generation - Illinois Attorney General
This document is part of the Title V Petition Database.
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How EPA Regulates Drinking Water Contaminants
This page describes the EPA's methods and processes of regulating contaminants in drinking water.
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2005 Petition Requesting the Administrator Object to Title V Permit for Camden Cogeneration Plant
This document is part of the Title V Petition Database.
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Notice of Final Rulemaking: Regulation of Fuel and Fuel Additives: Reformulated Gasoline Requirements for the Atlanta Covered Area
This page summaries the final rule determining that the Atlanta metro area is no longer a federal reformulated gasoline (RFG) covered area and there is no requirement to use federal RFG in the Atlanta area.
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2005 Petition Requesting the Administrator Object to Title V Permit for Lake County Conservation Alliance
This document is part of the Title V Petition Database.
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2008 Ozone National Ambient Air Quality Standards (NAAQS)
This page provides access to all transportation conformity regulations, including final rules and rulemakings currently in progress.
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2005 Petition Requesting the Administrator Object to Title V Permit for G-P Gypsum
This document is part of the Title V Petition Database.
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Federal Fleets using Low-Greenhouse Gas Emitting Vehicles
This page features links to information and regulations on requiring low greenhouse gas emitting vehicles for federal agencies.
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2012 Petition Requesting the Administrator Object to Title V Permit for Seneca Energy
This document is part of the Title V Petition Database.
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2013 Petition Requesting the Administrator Object to Title V Permit for PPL Montana - Colstrip Steam Electric Station
This document is part of the Title V Petition Database.
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2010 Petition Requesting the Administrator Object to Title V Permit for United Taconite Facility - Fairlane
This document is part of the Title V Petition Database.
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Removal of the Federal Reformulated Gasoline Program from the Kentucky Portion of the Louisville Area
EPA approved Kentucky’s 2025 petition to opt-out of the federal reformulated gasoline (RFG) program for Jefferson County and the parts of Bullitt and Oldham Counties in Louisville, Kentucky.
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CCL 3 Support Documents - Screening and PCCL Documents
Learn about the support documents for CCL 3 screening and PCCL
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CCL 3 Support Documents - Universe Documents
Learn about the support documents for identifying the universe for CCL 3
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TRI for the Press
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TRI Basic Plus Data Files: Calendar Years 1987-Present
Access downloadable files containing data from all TRI reporting years updated to include any withdrawals or revisions received by EPA.
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TRI for Researchers
Tips to help people accurately use TRI data for research purposes.