Learn the Issues

WIFIA Project Loan - Omaha, Nebraska

EPA issued a $69.7 million loan to the City of Omaha, Nebraska, to help finance its Saddle Creek Retention Treatment Basin. This marks the second loan to be issued under the WIFIA program.

WIFIA Notices of Funding Availability for Prior Years

When EPA receives its appropriation, the WIFIA program issues a Notice of Funding Availability (NOFA) to solicit letters of interest from prospective borrowers seeking financing from EPA.

USMCA Tijuana River Watershed Public Updates

Updates related to EPA and SEMARNAT actions to address persistent transboundary wastewater flows in the Tijuana River watershed.

Summary Letter of Key Requirements for Federal Land Managers (FLMs) Notification Process for New Source Review (NSR) Permit Applications

Letter from Anna Marie Wood, Director of EPA’s Air Quality Policy Division, to Carol McCoy, Chief of the Air Resources Division of the National Park Service (NPS) summarizing the key requirements for the Federal Land Managers (FLMs) notification process.

Federal Land Manager Notification of New Source Review Permit Applications in EPA's Pacific Southwest (Region 9)

In EPA's Pacific Southwest (Region 9), the Class 1 federal lands areas are designated as depicted in the map on this page. For more information, please visit the Region 9 Federal Class 1 Areas page.

About EPA Digitization Centers

Purpose of the EPA Digitization Centers

Coverage Under General Air Quality Permit for Stone Quarrying, Crushing and Screening Facilities: Oscar Renda Contracting Inc. Navajo Nation Crushing/Screening Operation

Documents related to approved request for coverage under the Stone Quarrying, Crushing and Screening Facilities General Permit for Oscar Renda Contracting Inc. Navajo Nation Crushing/Screening Operation located in McKinley and San Juan Counties, NM.

EPA Region 9 Issued Construction Approvals: Radionuclides

Radionuclide construction approvals issued by EPA in the Pacific Southwest, Region 9.

The Current: Fall 2023

The WaterSense Current is a quarterly update dedicated to news and events related to WaterSense.

Technical Data and Reports on Nitrogen Dioxide Measurements and SIP Status

EPA collects data from the states and regions on their air quality and state implementation plan (SIP) progress. This information is compiled in a database, and used to create reports, trend charts, and maps.

Guidance for Tracking Progress Under the Regional Haze Rule

regional haze quidance

Guidelines for Eating Fish that Contain Mercury

Learn about how to minimize exposure to methylmercury while eating fish. Read about fish advisories, how to use them to consume fish safely, and use the national fish advisories locator to find them in an area near you.

Regulatory Exclusions and Alternative Standards for the Recycling of Materials, Solid Wastes and Hazardous Wastes

Determining the Level of Regulation for Hazardous Waste Recycling, Recycled Materials that are not Subject to RCRA Hazardous Waste Regulation, Materials Subject to Alternative Regulatory Controls, Materials Subject to Full Hazardous Waste Regulations.

EPA Releases Proposal to Help Cleanup of Millions of Abandoned Tires, Promote Energy Dominance

EPA issued a proposal to help clean up millions of abandoned tires throughout the U.S., addressing health and safety concerns related to tire piles in American communities.

Release Date: March 20, 2026