Learn the Issues

Water Enforcement Policy, Guidance and Publications

Policy and guidance documents related to enforcement of the Clean Water Act and the Safe Drinking Water Act.

Intended Sulfur Dioxide Area Designations – August 2020

Recommendations for Areas to be Designated “Nonattainment” for the 2010 National Air Quality Standard for Sulfur Dioxide

Initial Technical Support Documents for Area Designations Round 3

Initial TSD supporting 120-day letters responses to states recommending area designations.

Initial Technical Support Documents for Area Designations Round 4

Initial TSD supporting 120-day letters responses to states recommending area designations.

Pesticides

This website provides easy access to all the pesticide-related information that is contained in various pesticide topical sites. It also includes news and meeting information, an A-Z index, and more.

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.

EPA Updates Aquatic Life Benchmarks for Registered Conventional and Antimicrobial Pesticides

News story on release of an updated version of the  Aquatic Life Benchmarks.

Volkswagen Light Duty Diesel Vehicle Violations for Model Years 2009-2016

This site provides information on EPA's issued notice of violation (NOV) of the Clean Air Act (CAA) to Volkswagen. The NOV alleges software that circumvents EPA emissions standards for certain air pollutants.

Small Business Coordinators List

This page is a list of the Small Business Coordinators for the Disadvantaged Business Enterprise programs.

Environmental Info in Arkansas

Summary of September 2025 Updates to Aquatic Life Benchmarks Table

Summary of updates to aquatic life benchmarks table for new registrations and updated registrations.

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.

Where are Community Advisory Groups?

Information about current Community Advisory Groups by EPA region.

Indoor Air Quality Tools for Schools

This web site will educate the public about indoor environmental issues specific to educational facilities and the importance of developing and sustaining comprehensive indoor air quality management programs.

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.

Understanding IAQ Benefits

Resources for managing asthma and radon effectively in schools