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Toxics Release Inventory (TRI) Program

TRI-Listed Chemicals

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Toxics Release Inventory Chemical List

The current TRI toxic chemical list contains 593 individually-listed chemicals and 30 chemical categories (including three categories containing 62 specifically-listed chemicals). If the members of the three delimited categories are counted as separate chemicals, the TRI Program covers 682 chemicals and chemical categories (i.e., 593 + 27 + 62).

Note: methyl mercaptan and 2,2-dibromo-3-nitrilopropionamide are under administrative stays and are not currently reportable.

Recent Changes to the TRI Chemical List

  • EPA Reinstates TRI Reporting Requirements for Hydrogen Sulfide
  • EPA reinstated the TRI reporting requirements for hydrogen sulfide as part of Administrator Lisa P. Jackson's ongoing efforts to provide the public with helpful information on chemicals they may encounter in their daily lives. This action will be effective for the 2012 TRI reporting year, with the first 2012 TRI reports due from facilities by July 1, 2013.

  • EPA Finalizes Rule to Add 16 Chemicals to TRI Chemical List
  • EPA finalized a rule to add 16 chemicals reasonably anticipated to be human carcinogens to the TRI list of reportable chemicals. This action is part of the EPA's ongoing efforts to examine the scope of TRI chemical coverage and provide communities with more complete information on toxic chemical releases. It is the largest chemical expansion of the program in over a decade and is effective for the 2011 TRI reporting year.

TRI Chemical List Changes (1987 - 2012)

EPA makes changes to the TRI chemical list through EPA-initiated review and through the chemical petitions process. As a result, the TRI list of reportable toxic chemicals can vary from year to year. TRI Chemical List Changes (PDF) ( 12pp, 133KB) lists all of the additions and deletions to the TRI chemical list and indicates the first or last reporting year for those chemicals.

Persistent Bioaccumulative Toxic (PBT) Chemicals

PBT chemicals have lower reporting thresholds than other TRI chemicals. PBTs are of particular concern not only because they are toxic, but because they remain in the environment for long periods of time, are not readily destroyed and build up or accumulate in body tissue.

TRI Chemicals and Other EPA Regulatory Programs

  • TITLE III List of Lists (PDF) (98 pp, 4.69MB)
  • This is a consolidated list of chemicals subject to reporting requirements under Title III of the Superfund Amendments and Reauthorization Act of 1986 (SARA), with references to their reporting status under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA or Superfund), the Resource Conservation and Recovery Act (RCRA), and Sections 302 and 313 of the Emergency Planning & Community Right-To-Know Act (EPCRA).

  • Regulatory Matrix of TRI Chemicals in other Federal Programs (PDF) (9 pp., 179KB)
  • A matrix has been developed for each TRI chemical indicating whether it is regulated under other selected environmental laws.

Toxicity of TRI Chemicals

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