Learn the Issues
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Learn About FCA Violations
Learn about EPA's issued notice of violation (NOV) of the Clean Air Act (CAA) to Fiat Chrysler Automobiles N.V. and FCA US LLC. The NOV alleges that FCA installed software that circumvents EPA emissions standards for certain air pollutants.
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2021 American Rescue Plan (ARP) Electric School Bus Rebates
The 2021 ARP Electric School Bus Rebates will offer $7 million to eligible school districts and private fleet owners for the replacement of old diesel school buses with new electric school buses.
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Carbon Pollution from Transportation
Learn about the effects of carbon pollution from transportation.
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About Coastal Wetlands
This page provides background information on coastal wetlands, including information about what coastal wetlands are, why coastal wetlands are important, the rate of coastal wetland loss, and the reasons why coastal wetlands are being lost.
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2025 HF Sinclair Navajo Clean Air Act Settlement Agreement Summary
On January 17, 2025, the U.S. Environmental Protection Agency (EPA), the Department of Justice (DOJ), and the New Mexico Environment Department announced a settlement agreement with HF Sinclair Navajo Refining LLC for CAA violations.
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Tax Credits
This webpage will serve as a resource to the public with an interest and need to learn about and navigate the application process for IRA tax credits.
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A – Z Agriculture Resources
Links to information about voluntary actions and regulatory requirements agricultural producers can take to protect natural resources and protect human health.
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Method 18 - Volatile Organic Compounds by Gas Chromatography
CFR Promulgated Test Method 18 Measurement of gaseous organic compound emissions by gas chromatography.
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EMC Recent Additions
This page has information about recent changes to promulgated and proposed test methods, perfomance specifications, and quality assurance procedures. It also includes updates and changes to all other approved and proposed test methods.
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Wetlands Programs Adopted by States and Tribes and Analysis of Core Components
Information about State, Tribal and Local Initiatives
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Civil and Cleanup Enforcement Cases and Settlements
A searchable table of currently available Civil Cases and Settlements, including respondents, descriptions, associated order types, dates, statutes, and links (where applicable).
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Water in Louisiana
Water topics and resources for Louisiana.
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What You Can Do for Voluntary Wetland Restoration and Protection
Resource page for voluntary wetland restoration and protection.
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Oklahoma’s Road to Water Quality Standards for Wetlands
Oklahoma’s Road to Water Quality Standards for Wetlands
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Vernal Pools
Vernal pools are seasonal depressional wetlands that occur under the Mediterranean climate conditions of the West Coast and in glaciated areas of northeastern and midwestern states
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Tribes of EPA Region 10 Come Together to Protect Wetlands
Tribal Wetlands Working Group
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How do Wetlands Function and Why are they Valuable?
An overview of how wetlands function.
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Basic Information about Anaerobic Digestion
Landing page for basic information about anaerobic digestion.
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How Do I Develop a Wetlands Regulatory Program?
Information on how to develop a regulatory program and how to implement it
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How Do I Develop a Wetlands Monitoring Program?
Information on how to develop a monitoring program