Learn the Issues
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Download the Automotive Trends Report
Download the light-duty vehicle carbon dioxide and fuel economy trends report.
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Introduction to the Automotive Trends Report
Introductory information for light-duty vehicle greenhouse gas (GHG) emissions, fuel economy, technology data, and auto manufacturers' performance in meeting EPA's GHG emissions standards.
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Tribal Air Emission Inventories
These documents provide guidance to tribes and EPA Regional Offices on how to create emission inventories
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Extension to Minor NSR Permitting Deadline for Oil and Gas Resources
EPA is proposing a Federal Implementation Plan rule that would apply to new true minor sources and minor modifications at existing true minor sources in the production segment of the oil and natural gas sector
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Highlights of the Automotive Trends Report
Highlights of the light-duty vehicle carbon dioxide and fuel economy trends report.
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EnviroAtlas Update Bulletin
Summarizes the most recent updates to EnviroAtlas content, tools, and functionality.
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Download the 2024 Automotive Trends Report
Download the light-duty vehicle carbon dioxide and fuel economy trends report.
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CIMC - How to Link to the Map or Site Profiles
This page provides information on how to link to a particular view of the Cleanups in My Community map, or link to a particular cleanup profile from your web page.
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CHP Screening Tool
Download the CHP Emissions Calculator, a tool that calculates the difference between the anticipated carbon dioxide, methane, nitrous oxide, sulfur dioxide, and nitrogen oxide emissions from a CHP system to those of a separate heat and power system.
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CHP Technologies
Learn about CHP technologies, including reciprocating engines, combustion turbines, steam turbines, microturbines, fuel cells, and waste heat to power. Access the Catalog of CHP Technologies and the Biomass CHP Catalog of Technologies.
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Effects of Acid Rain
Overview of the effects of acid rain on ecosystems, plant life, wildlife and man-made structures.
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Radiological Emergency Response
This page describes the activities of EPA's Radiological Emergency Response Team (RERT) and provides links to information about radiological emergency response.
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Air Emissions Monitoring for Permits
Operating permits document how air pollution sources will demonstrate compliance with emission limits and also how air pollution sources will monitor, either periodically or continuously, their compliance with emission limits and all other requirements.
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Electronic Reporting Process for Stationary Sources Presentations and Webinars
This page has links to training videos, powerpoint presentations and webinars supporting the Electronic Reporting Process for stationary sources, using the ERT, CEDRI and WebFIRE.
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AP-42 Chapter 11: Mineral Products - Frequent Questions
AP 42 Frequent Questions
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Final Revisions to AP-42 Chapter 7, Section 7.1 - Organic Liquid Storage Tanks
Final Revisions to Chapter 7, Section 7.1
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Emissions Estimation Protocol for Petroleum Refineries
Emission Estimation Protocol for Petroleum Refineries
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New and Revised Emissions Factors for Flares and New Emissions Factors for Certain Refinery Process Units and Determination for No Changes to VOC Emissions Factors for Tanks and Wastewater Treatment Systems
New and Revised Emission Factors for Flares and New Emission Factors for Certain Refinery Process Units and Determination for No Changes to VOC Emission Factors for Tanks and Wastewater Treatment Systems
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New Emissions Factors for Enclosed Ground Flares
New Emissions Factors for Enclosed Ground Flares