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Data and Tools

IPM Analysis of the Proposed Transport Rule (CSAPR)

Learn about how EPA used Integrated Planning Models (IPM) to analyse the effects of the proposed Cross-State Air Pollution Rule (CSAPR), also known as the Transport Rule.
Power Sector Modeling Platform v.5.16

Learn about EPA’s Base Case v.5.15, including documentation, results, and the National Electric Energy Data System (NEEDS) database.
Power Sector Modeling Platform v.6 May 2018

Learn about EPA’s Base Case v.5.15, including documentation, results, and the National Electric Energy Data System (NEEDS) database.
Power Sector Modeling Platform v6 November 2018

Learn about EPA’s Base Case v.6 November 2018 Reference Case, including documentation, results, and the National Electric Energy Data System (NEEDS) database.
Procedure for Safe Drinking Water Act Program Detection Limits for Radionuclides

Calculations for determining drinking water detection limits for radionuclides.
Ozone NAAQS Timelines

2008 ozone standards remain in effect while the 2015 standards are being realized. EPA must make new area designations based on the 2015 standards before they can begin to be implemented.
GHGRP 2021: Supplier Highlights

Fuel and industrial GHG supplier highlights of 2021 emissions of greenhouse gases in EPA's Greenhouse Gas Reporting Program.
AP 42, Fifth Edition, Volume I Chapter 4: Evaporation Loss Sources

AP 42, Fifth Edition, Volume I Chapter 4: Evaporation Loss Sources
AP 42, Fifth Edition, Volume I Chapter 10: Wood Products Industry

AP 42, Fifth Edition, Volume I Chapter 10: Wood Products Industry
Greenhouse Gas Equivalencies Calculator - Calculations and References

Provides information on how the calculations are used to convert greenhouse gas emission numbers into different types of equivalent units.
Green Book Lead (2008) Area Information

Lead (2008)
Green Book Sulfur Dioxide (2010) Area Information

Sulfur Dioxide (2010)
Green Book Sulfur Dioxide (1971) Area Information

Sulfur Dioxide (1971)
Green Book PM-2.5 (2006) Area Information

PM-2.5 (2006)
Green Book PM-2.5 (1997) Area Information

PM-2.5 (1997)
Green Book PM-10 (1987) Area Information

PM-10 (1987)
Green Book Map Download

Download Green Book Maps
Green Book Lead (1978) Area Information

Lead (1978)
Green Book Early Action Compact (EAC) Areas

Early Action Compact (EAC) Areas
Green Book Data Download

Download Data

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