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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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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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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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
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RSEI and NATA
A summary comparison of RSEI and the National Air Toxics Assessment (NATA)
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Armed to Secure Wetlands: New Hampshire's Aquatic Resource Mitigation (ARM) Fund
Armed to Secure: New Hampshire's Aquatic Resource Mitigation (ARM) Fund
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New Jersey’s Clean Water Act §404 Permit Program
New Jersey’s §404 Permit Program
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Minnesota Uses Floristic Quality Assessments to Enhance State Wetlands Monitoring Efforts
Minnesota Uses Floristic Quality Assessments to Enhance State Monitoring Efforts
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Restoration on the Lummi Nation Reservation: First Tribal Wetland Mitigation Bank (Washington State)
Restoration on the Reservation: First Nation Develops First Tribal Wetland Mitigation Bank