TRI Program Timeline
Learn how the Toxics Release Inventory (TRI) Program originated and how it has expanded over the years. For more information about these events, see TRI Program Timeline (PDF)
January 2015
August 2013
January 2013
April 2012
October 2011
November 2010
July 28, 2010
- Earliest-Ever Availability of TRI Data
June 2010
December 2009
June 2009
April 2009
August 2008
January 2008
May 2007
December 2006
January 2001
October 1999
July 1998
May 1997
November 1994
August 1993
Fall 1991
- EPA Considers Three-Phase Approach to Broadening Scope of TRI
November 1990
June 1989
- EPA Publishes First National TRI Report for Reporting Year 1987
July 1, 1988
- First TRI Reporting Deadline for Reporting Year 1987 Data
October 1986
August 1985
- Toxic Chemical Leak in Institute, West Virginia