U.S. Environmental Protection Agency

EPA Releases Updated Air Model to Advance Gold Standard Science and Cooperative Federalism

Researchers and atmospheric scientists worldwide can leverage the updated framework to drive further innovations in air quality science. To download CMAQ version 6.0 or access the updated technical ...
U.S. Environmental Protection Agency

EPA Spotlights Historic Environmental Wins Delivered at Record Pace

EPA today unveiled an updated environmental accomplishments webpage and a new video, together capturing hundreds of wins delivered for American communities since January 20, 2025.
U.S. Environmental Protection Agency

EPA Announces $109 Million WIFIA Loan to Increase Water Supply Reliability in Honolulu, Hawaii

Today, U.S. Environmental Protection Agency (EPA) announced a $109 million Water Infrastructure Finance and Innovation Act (WIFIA) loan to the Honolulu Board of Water Supply, which serves parts of ...
U.S. Environmental Protection Agency

Trump EPA Celebrates Children’s Health Month with 100 Actions to Protect the Nation’s Most Precious Resource

The Trump Administration has been racking up huge wins when it comes to protecting children’s health. In honor of Children's Health Month, U.S. EPA released a list of 100 actions taken to protect ...
U.S. Environmental Protection Agency

EPA Spotlights a Leaner, Stronger Agency Delivering More for Taxpayers

EPA today launched a new webpage and video highlighting the agency's reform, reorganization, and savings, showing how EPA is delivering its core mission faster while returning taxpayer dollars.
U.S. Environmental Protection Agency

EPA Administrator Zeldin Announces American Farmer First Policy During Three-Day Swing in Iowa and Wisconsin

Administrator Lee Zeldin traveled across Iowa and into Wisconsin for a number of meetings and engagements with farmers, ...
US Environmental Protection Agency

Updated Definition of Waters of the United States

On November 17, 2025, the agencies announced the signing of a proposed rule to revise the definition of “waters of the United States.” This proposal would implement the Supreme Court's decision in ...
US Environmental Protection Agency

Anaerobic Digester/Biogas System Operator Guidebook

AgSTAR's Anaerobic Digester/Biogas System Operator Guidebook is a comprehensive technical resource that offers best practice guidance related to the operation and maintenance (O&M) of anaerobic ...
U.S. Environmental Protection Agency

While in Iowa, Administrator Zeldin Proposes 100% Reallocation for Additional 2025 Small Refinery Exemption Volumes and Opens Markets for American Farmers

While in Peosta, Iowa, U.S. EPA Administrator Lee Zeldin announced revisions to the Renewable Fuel Standard (RFS) “Set 2” rule volumes to keep the historic and necessary volumes intact and increase ...
U.S. Environmental Protection Agency

EPA Deputy Administrator Fotouhi Wraps Two-Day Swing in Virginia, Joins Representative Kiggans to Announce Over $90 Million for Chesapeake Bay Program

Deputy Administrator David Fotouhi was joined by U.S. Representative Jen Kiggans (R-VA-02) to announce more than $90 million ...
Opinion
U.S. Environmental Protection AgencyOpinion

Administrator Zeldin Announces EPA is Days Away from Unveiling Next Oil & Gas Proposal

U.S. EPA Administrator Lee Zeldin announced that in the coming days the Trump EPA will be proposing the next part of the agency’s comprehensive reconsideration of the Biden Administration's 2024 oil ...
U.S. Environmental Protection Agency

EPA Administrator Zeldin Proposes Approving Another Innovative Plan in Maricopa County to Help Manufacturing and Economic Growth While Ensuring Clean Air

Administrator Lee Zeldin announced the proposed approval of a second innovative air quality rule by Maricopa County to support Arizona’s continued economic expansion while maintaining clean air for ...