Learn the Issues
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Water Reuse and Recycling
Web home of EPA's Water Reuse Program, which helps foster collaboration among water reuse stakeholders and helps advance water reuse applications across the United States.
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Redevelopment Mapper for Superfund and Brownfield Sites: Quick Start Instructions
Quick start tool for using the Superfund Redevelopment Mapper to identify Superfund site properties for redevelopment.
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Reuse Considerations for Data Centers on Brownfield Sites
Considerations for Reusing a Brownfield Site as a Data Center
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Collaboration with Taiwan Ministry of Environment
Through this partnership, U.S. and Taiwan environmental authorities have developed a strong capacity to reduce pollution and manage the environment through joint projects, innovate research, and knowledge exchange.
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Innovative Water Infrastructure Workforce Development Program-Frequent Questions
Frequent questions about EPA's Innovative Water Infrastructure Workforce Development Program.
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Enforcement and Compliance Assurance Annual Results for FY 2025: Compliance Assurance
2025 enforcement and compliance annual results
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Emergencies and Indoor Air Quality
Find information and strategies for preparing for, responding to, and safely recovering from emergencies, with the goal of maintaining healthy indoor air quality and the protecting building occupants.
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CSAPR Assurance Provision NODAs
For each calendar year for which the CSAPR assurance provisions are triggered, EPA publishes a preliminary and final notice of data availability (NODA) in the federal register.
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Analysis of the Final Repeal of the Mercury and Air Toxics Standards Amendments
IPM analyses of the Proposed MATS Risk and Technology Review (RTR)
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CDX Registration for EASEY
This page provides a guide to the CDX registration process for the EASEY program service for access to CBS and ECMPS 2.0.
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Criminal Enforcement Area and Resident Offices
Listing contact information for the area and resident offices in the criminal enforcement program.
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Self-driving Vehicles
This page is general overview of self-driving (automated) vehicles, with definitions for the different levels of automation, from Level 0 (no automation) to Level 5 (full automation). Includes easy-to-read snapshot of automation levels.
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WIFIA Program Overview Webinar
Webinar provides overview of the WIFIA program.
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Frequent Questions: Radiation in Medicine
Radiation in Medicine
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Water Infrastructure
A central location where the general public can locate the latest information and resources relating to the Infrastructure Investment and Jobs Act (IIJA) water infrastructure initiatives and projects.
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Emergencies and Indoor Air Quality (IAQ)
Preparation and response to weather-related and man-made emergencies is particularly important when it comes to indoor environments, since humans spend most of their time indoors, and rely on indoor spaces for shelter.
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HAWQS Flyer v1.0
HAWQS Flyer v1.0
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Region 9 (Pacific Southwest) Indoor Air Quality
Find information about local resources relating to Indoor Air Quality and EPA Region 9.
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Region 6 (South Central) Indoor Air Quality
Find information about local resources relating to Indoor Air Quality and EPA Region 6.
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Region 7 (Midwest) Indoor Air Quality
Find information about local resources relating to Indoor Air Quality and EPA Region 7.