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Toxics Release Inventory (TRI) Program

Guidance for Using Historical TRI "Basic Plus" Data Files

Guidance for using the downloadable files that collectively contain all of the data elements from the Toxics Release Inventory (TRI) reporting Form R and Form A. Note that this page contains multiple PDF files, each of which is specific to the TRI data files for a particular year. If you're using data files from 2007 or earlier, note that the "Basic Plus" files were previously called the "State" data files.

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