Learn the Issues
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Intended Sulfur Dioxide Area Designations – August 2020
Recommendations for Areas to be Designated “Nonattainment” for the 2010 National Air Quality Standard for Sulfur Dioxide
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Initial Technical Support Documents for Area Designations Round 3
Initial TSD supporting 120-day letters responses to states recommending area designations.
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Initial Technical Support Documents for Area Designations Round 4
Initial TSD supporting 120-day letters responses to states recommending area designations.
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Responses to Petitions for Small Refinery Exemptions from the Renewable Fuel Standard
EPA memorandum regarding small refineries that submitted gap-filling petitions for exemption from RFS Program due to disproportionate economic hardship; denial of exemptions having not demonstrated the requisite hardship during years related to petitions.
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EPA Updates Aquatic Life Benchmarks for Registered Conventional and Antimicrobial Pesticides
News story on release of an updated version of the Aquatic Life Benchmarks.
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Small Business Coordinators List
This page is a list of the Small Business Coordinators for the Disadvantaged Business Enterprise programs.
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Summary of September 2025 Updates to Aquatic Life Benchmarks Table
Summary of updates to aquatic life benchmarks table for new registrations and updated registrations.
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Manufacturer-Run In-Use Testing Program Data for Heavy-Duty Diesel Engines – Test Order Year 2021
This page provides manufacturer-run in-use testing program data from heavy-duty diesel engine manufacturers in compliance with 40 CFR 86 Subpart T for Test Year 2021.
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OnDemand Training Webinars
A collection of downloadable webinar videos about indoor air quality in schools, developed by the School Health and Indoor Environments Leadership Development (SHIELD) Network.
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Understanding IAQ Benefits
Resources for managing asthma and radon effectively in schools
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Connecting and Networking for Schools
Resources for connecting and networking for schools through e-newsletters, finding school IAQ Champions and other EPA school programs such as Asthma, Energy Star, Clean School Bus USA, School Flag, etc.
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Healthy School Renovations
Integrating IAQ Tools for Schools in school renovations.
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Find Local Indoor Air Quality Champions
Use the U.S. map to find the individuals, schools and school districts in your state or region that have been recognized by EPA for their achievements in improving indoor air quality.
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CWNS 2000 Report to Congress
These documents summarize the results of EPA's thirteenth national CWNS survey.
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Clean Watersheds Needs Survey (CWNS) Report to Congress—2004
Documents that summarize the results of EPA's fourteenth national survey on pollution control capital investment needed to meet environmental and human health objectives of the Clean Water Act.
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Enforceable Consent Agreement for Environmental Testing on Octamethylcyclotetrasiloxane (D4)
EPA has entered into an Enforceable Consent Agreement with five manufacturers of octamethylcyclotetrasiloxane, which is widely used as a chemical intermediate and component of personal care products.
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Interagency Testing Committee (ITC) Reports
The ITC's web site is a interactive vehicle that provides procedures for industry to electronically submit unpublished data and for the public (including industry) to retrieve these data and other information created or reviewed by the ITC.
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Paint Removers: Methylene Chloride and n-Methylpyrrolidone (NMP)
This webinar described the risks associated with NMP, provided an overview of TSCA section 6, and solicited input on ways EPA should address identified risks, with a particular emphasis on vulnerable populations.
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Section 799.5025 Testing consent orders for mixtures without Chemical Abstracts Service Registry Numbers
This document sets forth a list of mixtures (with no Chemical Abstracts Service Registry Numbers) which are the subject of testing consent orders adopted under 40 CFR part 790.
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CFR Section 799.5050 Multi-test requirements for specific chemical substances.
This document provides Multi-test requirements for specific chemical substances.