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Inventory Resources

Emission factor reference materials
U.S. EPA's publication "Compilation of Air Pollutant Emission Factors "AP-42"):
Fifth Edition, Volume 1: Stationary Point and Area Sources"
U.S. EPA - WebFIRE - an Internet based search application
Software
U.S. EPA's TANKS 4.09d software
Landfill Gas Emissions Model (version 3.02)
Materials related to coding industries and processes
NAICS and SIC industry codes
Process Tier CodesThis link opens a new page containing an Adobe Acrobat PDF document.
Control Device CodesThis link opens a new page containing an Adobe Acrobat PDF document.