EPA TRI (Toxic Release Inventory) Basic Plus Data Files: Calendar Years 1987- Present

EPA has been collecting Toxics Release Inventory (TRI) data since 1987. The "Basic Plus" data files include ten file types that collectively contain all of the data fields from the TRI Reporting Form R and Form A. The files themselves are in tab-delimited .txt format and then compressed into a .zip file.

The PDF files are guides:

TRI Basic Plus Data Files Guides
These documents describe field-by-field contents of the 10 files which collectively contain all of the data reported on the TRI Reporting Form R and Form A Certification Statement.

Last Updated: September 2024

Guide to File Type 1A: Chemical Releases and Other Waste Management (pdf) (1.2 MB, 9/18/24)

Guide to File Type 1B: Chemical Activities and Uses (pdf) (624.93 KB, 9/18/24)

Guide to File Type 2A: Source Reduction and Other Section 8 Data (pdf) (691.38 KB, 9/18/24)

Guide to File Type 2B: On-Site Waste Treatment (pdf) (668.34 KB, 9/18/24)

Guide to File Type 3A: Off-Site Transfers (pdf) (650.88 KB, 9/18/24)

Guide to File Type 3B: Transfers to POTWs (1987-2010) (pdf) (577.31 KB, 9/18/24)

Guide to File Type 3C: Transfers to POTWs (2011 and later) (pdf) (980.69 KB, 9/18/24)

Guide to File Type 4: Historical Facility Information (pdf) (490.44 KB, 9/18/24)

Guide to File Type 5: Additional Information from Section 8.11 (pdf) (485.72 KB, 9/18/24)

Guide to File Type 6: Additional/Misc. Information from Section 9.1 (pdf) (472.07 KB, 9/18/24)