Learn the Issues

2020 National Emissions Inventory (NEI) Plan

The 2020 NEI Plan is prepared at least every three years by the U.S. EPA based primarily upon emissions estimates and emissions model inputs provided by State, Local and Tribal (SLT) air agencies, and supplemented by data developed by the EPA.

What facilities are required to report to the NEI?

The emissions reporting thresholds are in the Air Emissions Reporting Rule (AERR), 40 CFR Part 51, Subpart A, Appendix A, Table 1 , which require state/local air agencies to report emissions as point sources for facilities that meet or exceed these emissions thresholds. The AERR requires states/locals to report to…

Last published: July 21, 2025

Nootkatone Now Registered by EPA

Nootkatone a new active ingredient ha been developed by the Centers for Disease Control and registered by the Environmental Protection Agency

2014-2016 Allotment of Federal Funds for States, Tribes, and Territories

Addressing Lead in Drinking Water with the DWSRF (EPA 816-F-18-005)

This fact sheet describes DWSRF eligibilities related lead. It provides several case studies where DWSRF funds were used for lead related activities.

DWSRF Program Overview (EPA 816-F-18-001)

A federal-state partnership providing financial support to water systems and state drinking water programs

Addressing Manganese in Drinking Water with the DWSRF (EPA-816-F-21-001)

This fact sheet describes DWSRF eligibilities related to manganese in drinking water.

SRF Fund Management Handbook

This document provides an in-depth analysis of how to measure the financial health of the SRF programs, spotlighting potential risks, and methods to avoid pitfalls

May 5, 2016, Technical Webinar on Draft Biological Evaluations for Three Chemicals

May 5th 2016, Technical Webinar on Draft Biological Evaluations for Three Chemicals

EPA Grants Community Library of Frequently Asked Questions (FAQ)

This page contains answers to frequent questions.

Does Ammonia in Ammonium Hydroxide count toward the EHS threshold for reporting under EPCRA section 312?

A facility has 9,000 pounds of ammonium hydroxide (19 percent solution) present on site at a given time. For reporting under the Emergency Planning and Community Right-to-Know Act (EPCRA) section 312, must the amount of ammonia in ammonium hydroxide be counted (and aggregated) towards the reporting threshold for extremely hazardous…

Last published: July 21, 2025

EPA Stops Contaminated Water by Slaughterhouse After Public Complaints in Monroeville, NJ

News release about EPA cleanup of discharge from New Jersey slaughterhouse.

Release Date: July 9, 2025

Air Quality Designations for Nitrogen Dioxide

This area provides information on the process EPA, the states, and the tribes follow to designate areas as attainment (meeting) or nonattainment (not meeting) the nitrogen dioxide quality standards.

Añasco, Puerto Rico (Edwards Lifesciences) - Español

Los científicos y analistas de la Agencia de Protección Ambiental (EPA) completaron recientemente una evaluación de riesgos para comprender el impacto de las emisiones de EtO de la instalación de Edwards Lifesciences.

Factsheet: What to Know About the EPA’s Proposed Plan for Addressing Lead in Residential Soils

Factsheet on a Proposed Plan for changes to the existing cleanup level of lead in residential soils at the Butte Priority Soils Operable Unit (BPSOU) of the Silver Bow Creek/Butte Area Superfund Site.

Safe Drinking Water Act: Consumer Confidence Reports (CCR)

A Web site to support the implementation of the Consumer Confidence Reports (CCR) and the public's access to drinking water quality reports.

EPA Begins Sixth Review of Chem-Dyne Superfund Site

EPA is conducting a five-year review. This is the fifth five-year review of Michigan Disposal Service (Cork Street Landfill).

Comments Due Date: November 30, 2025
Geographic Locations: Ohio