United States | US EPA

Frequently Asked Questions and Resources about Wetland Program Development Grants

Frequently Asked Questions for the Fiscal Year 19 or 19-20 Wetland Program Development Grant Request for Proposals.

Municipal Resources

A guide to federal resources for municipalities / utilities / local governments such as funding, technical assistance, helpful webinars, and workshops for local governments. Learn more about EPA's Municipal Ombudsman.

Schools as Cleaner Air and Cooling Centers: Tips for Facility Managers, Principals, Teachers, and Parents and Caregivers

Find factsheets with information for schools staff on how to combat the impacts of climate change including heat waves and wildfires.

How do CERCLA requirements apply to the hazardous substances for which no reportable quantity has been established?

EPA has not yet established reportable quantities (RQ) for the broad generic classes of compounds that are CERCLA hazardous substances. These substances are listed in CERCLA Table 302.4 [ 40 CFR 302.4 ] with the code “ ** ” in the Final RQ [pounds (kg)] column, and are listed under…

Last published: August 5, 2026

Water Reuse and Nature-based Solutions

e nature-based solutions can offer benefits for a variety of environmental challenges, this page focuses on their potential in addressing specific problems facing the water sector.

Disaster Resilient Design Concepts

Designs showcased in this document can help communities reduce the impact of disasters, recover more quickly, strengthen local economies, and create safer, more equitable places to live by reducing hazards especially for those most vulnerable.

Global Change Explorer

GCX is a collection of EPA research products (tools, data, and approaches) relevant to global change impact assessments and response planning for those impacts.

Midwest Clean Diesel Initiative Clean School Bus Working Group

Region 5 Midwest Clean Diesel Initiative subpage created to list their structure and state coalition contacts for their new Bipartisan Infrastructure Law (BIL) Clean School Bus (CSB) Working Group.

Nonferrous Metals Manufacturing Effluent Guidelines Documents for 1990 Amendment

Federal Register notices and support documents for the 1990 amendment to the Nonferrous Metals Manufacturing Effluent Guidelines

Effluent Guidelines

Effluent guidelines are national standards for wastewater discharges to surface waters and municipal sewage treatment plants. We issue the regulations for industrial categories based on the performance of treatment and control technologies.