Science & Technology

2007 Version 5.0 Technical Support Document

Preparation of Emissions Inventories for the Version 5.0, 2007 Emissions Modeling Platform describes how emissions based on the 2008 NEI, version 2 and were processed to represent the year 2007 in support of air quality modeling of the PM NAAQS.

2011 Version 6.1 Technical Support Document

This TSD describes how the emission inventories were prepared for air quality modeling for the years 2011, 2018, and 2025 using the 2011, version 6.1 emissions modeling platform, which is based on the 2011 National Emissions Inventory, Version 1.

Final Acrolein Method Development Report

Final Acrolein Method Development Report and Appendix A SOP

U.S. - Mexico Border Information Center on Air Pollution (CICA)

The CICA provides resources for emerging and existing air pollution prevention and control technologies and provides public access to data and information on their use, effectiveness and cost.

Control of HFC-23 Emissions

Proposed Rulemaking: Phasedown of Hydrofluorocarbons: Allowance Allocation Methodology for 2024 and Later Years.

2005 v4.1 Technical Support Document

Preparation of Emission Inventories for the Version 4.1, 2005-based Platform describes how emissions from the 2005 NEI, version 2 and were processed for air quality modeling in support of the Boiler MACT and the Mercury and Air Toxics Standards.

2011 Version 6.0 Technical Support Document

This TSD describes how the emission inventories were prepared for air quality modeling for the years 2011, 2018, and 2025 using the 2011, version 6.0 emissions modeling platform, which is based on the 2011 National Emissions Inventory, Version 1

GHGRP Reported Data

Data from greenhouse gas-emitting facilities and suppliers in 2023 to the EPA greenhouse gas reporting program, as well as data highlights from the reporting year.

Water Facts Answer and Question Game

A card game to print and cut apart the individual cards. The game is played by one team reading the Answer from the card and the other team guessing the correct Question that relates to it.

EPA Announces Completion of Flood Response Efforts in Eastern Kentucky

EPA News Release: EPA Announces Completion of Flood Response Efforts in Eastern Kentucky

Release Date: March 21, 2025

August 25, 2016 Meeting of the Human Studies Review Board

March 30, 2016 Meeting of the Human Studies Review Board

December 12, 2017 Meeting of the Human Studies Review Board

October 25-26, 2017 Meeting of the Human Studies Review Board

September 15, 2017 Meeting of the Human Studies Review Board

July 26, 2017 Meeting of the Human Studies Review Board

March 17, 2017 Meeting of the Human Studies Review Board

January 25-26, 2017 Meeting of the Human Studies Review Board

December 13, 2016 Meeting of the Human Studies Review Board

Virtual Beach v 2.4 User Guide

Guide for Virtual Beach modeling software, designed for developing site-specific Multiple Linear Regression (MLR) models for prediction of pathogen indicator levels at recreational beaches.