About EPA
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What Does the RESTORE Council Do?
Pursuant to the RESTORE Act, the Council is responsible for administering a portion of the funds associated with settlement of civil penalties against parties responsible for the Deepwater Horizon oil spill.
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Hot Topics in Colorado
Hot topics for the state of Colorado.
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Quick Start Tutorial: How to Use COBRA
Learn how to get started using COBRA, the Co-Benefits Risk Assessment.
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Radiation Resources Outside of EPA
EPA does not license nuclear power plants or regulate the non-ionizing radiation from cell phones, smart meters or power lines. This page provides links to the state and federal agencies that regulate these matters.
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WHAT THEY ARE SAYING: Leaders Throughout the Country Commend EPA’s Announcement on Diesel Exhaust Fluid
On Tuesday, U.S. Environmental Protection Agency (EPA) Administrator Lee Zeldin announced that the agency is issuing manufacturer guidance to address widespread concerns from truckers, farmers, and other diesel vehicle operators
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ICYMI: EPA Green Lights Diesel Exhaust Fluid (DEF) Fix Protecting Hard-Working American Farmers, Truckers, Equipment Operators
On Tuesday, U.S. Environmental Protection Agency (EPA) Administrator Lee Zeldin announced new guidance urging engine and equipment manufacturers to revise diesel exhaust fluid (DEF) system software in existing vehicles and equipment.
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Marine Engine and Vessel Program Applicability
This web page provides information that vessel owners & operators can use to assess how EPA’s marine engine regulations apply.
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산화에틸렌에 대해 더 알아보기
Korean translation of learn more about EtO web page
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Nơi để Tìm Hiểu Thêm Về Ethylene Oxide
Vietnamese translation of Where to Learn More About EtO web page
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如何獲得更多有關環氧乙烷的資訊
Traditional Chinese translation of Where to learn more about EtO web page.
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Population Surrounding 3,975 RCRA Corrective Action Sites
To help describe who benefits from our RCRA Corrective Action (CA) Program cleanup work, EPA collected data on the population living within 3 and 1 mile(s) of RCRA CA sites.
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Intranet Standard: Enterprise Intranet Content Management System
EPA’s Enterprise Intranet CMS standard establishes a single platform for managing EPA’s most important internal content (identified in EPA’s Enterprise Intranet Content Standard) to make it easier for employees to create, publish and find the internal info
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Spruce Up! Using Green Roofs and Green Spaces to Beat the Heat
This page includes presentation and transcript PDFs from EPA's July 11, 2019 webcast, "Spruce Up! Using Green Roofs and Green Spaces to Beat the Heat."
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The Writing’s on the Wall: Recent Cool Wall Research and Measures
This page includes presentation and transcript PDFs from EPA's September February 22, 2018 webcast, "The Writing’s on the Wall: Cool Wall Research and Measures."
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Cool Fixes for Hot Cities Part 1: San Antonio
This page includes presentation and transcript PDFs from EPA's September August 1, 2018 webcast, "Cool Fixes for Hot Cities Part 1: San Antonio."
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Cool Fixes for Hot Cities Part 2: Los Angeles
This page includes presentation and transcript PDFs from EPA's September 12, 2018 webcast, "Cool Fixes for Hot Cities Part 2: Los Angeles."
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Urban Warming and Health
This page includes presentation and transcript PDFs from EPA's August 19, 2015 webcast, "Improving Heat Health Resilience through Urban Infrastructure Planning and Design."
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At Iowa State Fair, EPA Administrator Zeldin Announces Diesel Exhaust Fluid (DEF) Fix
EPA Issues Guidance to Address Derates, Power Loss Concerns Raised by American Farmers, Truckers, and Equipment Operators Without Compromising Environmental Standards
EPA Administrator Lee Zeldin announced new action to protect American farmers, truckers, and other diesel equipment operators from sudden speed and power losses caused by diesel exhaust fluid (DEF) systems.
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Procedure: WebCMS and Intranet CMS Feature Intake
The procedures and considerations for creating, reviewing, and voting on EPA Web Standards
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EPA Administrator Zeldin Visits Iowa, Announces New EPA DEF Guidance, Attends State Fair, Celebrates One Big Beautiful Bill
On Tuesday, August 12, 2025, U.S. Environmental Protection Agency (EPA) Administrator Lee Zeldin was in Iowa to visit with state, local and federal partners, farmers, and stakeholders to discuss environmental issues in the state, announce new guidance