Learn the Issues

USACE Nationwide Permit Certification Actions

Summary table of the EPA section 401 water quality certification actions for the 57 Nationwide Permits issued by the U.S. Army Corps of Engineers (USACE).

National Tribal Building Codes Summit

National Tribal Building Codes summit statement developed to support Tribes interested in adopting green and culturally appropriate building systems to ensure safe, sustainable, affordable, and on Tribal lands.

Region 3 (Mid-Atlantic) Indoor Air Quality

Find information about local resources relating to Indoor Air Quality and EPA Region 3.

Water Quality Improvement

A major objective in EPA's work to restore the San Francisco Bay Delta Watershed is to improve water quality by reducing or preventing contamination of rivers and streams.

Care for Your Air: A Guide to Indoor Air Quality

Understand indoor air in homes, schools, and offices. Most of us spend much of our time indoors. The air that we breathe in our homes, in schools, and in offices can put us at risk for health problems.

Rudy’s Performance Parts, Inc., and Aaron Rudolf Clean Air Act Settlement Information Sheet

The EPA and DOJ reached a civil settlement agreement with Rudy’s Performance Parts Inc. for violations of the Clean Air Act.

Environmental Crime Victim Resources - Oklahoma

A resource listing for environmental crime victims

Resources for Flood Cleanup and Indoor Air Quality

During a flood cleanup, the indoor air quality in your home or office may appear to be the least of your problems. However, failure to remove contaminated materials and to reduce moisture and humidity can present serious long-term health risks.

Public Comments Sought on a Class VI UIC Injection Well Draft Permit- Marquis Carbon Injection

The U.S. Environmental Protection Agency (EPA), Region 5, is providing notice to comment on Class VI UIC Injection Well Draft Permit- Marquis Carbon Injection.

Comments Due Date: November 3, 2025
Geographic Locations: Illinois

2013 Clean Air Act Vehicle and Engine Enforcement Case Resolutions

This is the 2013 Vehicle and Engine Settlement Agreements

Sources of Combustion Products

In addition to environmental tobacco smoke, other sources of combustion products are unvented kerosene and gas space heaters, woodstoves, fireplaces, and gas stoves. The major pollutants released are carbon monoxide, nitrogen dioxide, and particles.