Science & Technology

2017 Appendix W Final Rule

On December 20, 2016, the Administrator signed a final rule that revises the Guideline on Air Quality Models. The Guideline provides EPA-recommended models and other techniques, as well as guidance for their use, for predicting ambient concentrations of ai

Smoke-Ready Communities Research to Prepare for Wildfires

As communities explore the development of smoke-ready plans, EPA researchers have identified a need to study the characteristics, elements, networks, relationships, and processes that contribute to an effective plan to protect public health.

Pre-IRA 2022 Reference Case

This area provides information and documentation on EPA’s power sector modeling platform v6, including the associated input data and modeling assumptions, outputs, and documentation.

Analysis of the Proposed Supplemental Interstate Transport Rule

IPM analyses of the Proposed Supplemental Interstate Transport Rule

Healthy Heart Toolkit and Research

EPA is raising awareness of the health effects of air pollution on the cardiovascular system that can lead to heart attacks, stroke and premature death from lung and heart disease.

Air Pollution and Cardiovascular Disease Basics

Cardiovascular disease is a general term used to describe conditions affecting the health of the heart or blood vessels. The disease is the leading cause of death in the United State with most of the deaths occurring in people over 65 years of age.

International Actions to Protect the Ozone Layer

This page describes the Montreal Protocol on Substances that Deplete the Ozone Layer and provides links to learn more about international actions to protect the ozone layer.

Regulating Ozone-Depleting Substances Under the Clean Air Act

This page describes the regulation of ozone under the the Clean Air Act and provides links to learn more about the act and other, related programs.

TSC Membership

The Tribal Science Council is a bicameral Council comprising of Agency Representatives from each of EPA’s regions and headquarters program offices and Tribal Representatives from each EPA region. This page lists the membership of the TSC.

Responses to 40 CFR Part 75 Petitions - 2002

Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2002.

Responses to 40 CFR Part 75 Petitions - 2012

Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2012.

Responses to 40 CFR Part 75 Petitions - 2008

Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2008.

Frequent Questions about the Power Plants and Neighboring Communities Mapping Tool

Frequent questions for Power Plants and Neighboring Communities

Analysis of the Final Federal Good Neighbor Plan Addressing Regional Ozone Transport for the 2015 Ozone National Ambient Air Quality Standard

IPM analyses of the Good Neighbor Plan for 2015 Ozone NAAQS.

eBEACHES Location Data SOP v2.1

EPA response to RFC: A Modification of National Pollutant Discharge Elimination System Permit Deadline for Storm Water Discharges for Oil and Gas Construction Activity That Disturbs One to Five Acres of Land

EPA response to the Request for Correction (RFC)

Nitrous Oxide Emissions

Information on emissions and removals of the main greenhouse gases to and from the atmosphere.

Assumptions and References for Household Carbon Footprint Calculator

RFC: Federal Data Quality Act Petition Against Further Dissemination of 'Climate Action Report 2002

Submitted by Competitive Enterprise Institute

Appeal RFC: Guidelines for Ensuring and Maximizing the Quality, Objectivity, Utility, and Integrity of Information Disseminated by Federal Agencies

Submitted by The National Multi Housing Council (NMHC), the National Apartment Association (NAA), the Builders Owners and Managers Association (BOMA), the Institute of Real Estate Management (IREM), the National Association of Industrial and Office Propert