Emissions Development Tools

These air emission inventory tools are used to develop the National Emissions Inventory (NEI). 

• WebFIRE is EPA's online emissions factor repository, retrieval, and development tool. 
• SCC Search Tool and Web Service is a searchable data base of the source classification codes that are used to characterize emissions in the NEI.
• EIS Reporting Code Tables (zip) is a zip file containing the different point source reporting codes used to report facility and emissions data in both xls and csv formats. A readme file is also included.