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In general chemicals covered by the TRI Program are those that cause one or more of the following:
- Cancer or other chronic human health effects
- Significant adverse acute human health effects
- Significant adverse environmental effects
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.
Select a year to view a list of reportable chemicals (PDF)
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) lists all of the additions to and deletions from the TRI chemical list and indicates the first or last reporting year for those chemicals.
TRI Chemicals Classified as OSHA Carcinogens
A list of TRI chemicals that are classified as carcinogens (PDF) under the requirements of the Occupation Safety and Health Administration (OSHA) and, the basis for the classifications. (Please note: OSHA carcinogens have a 0.1% de minimis concentration limit instead of 1%. Amounts of TRI chemicals present below the de minimis concentration limit in mixtures do not have to be included in threshold determinations or release and other waste management calculations.)
Persistent Bioaccumulative Toxic (PBT) Chemicals
PBT chemicals have lower reporting thresholds than other TRI chemicals. PBTs are of particular concern because they remain in the environment for long periods of time, are not readily destroyed and build up or accumulate in body tissue.
- TRI PBT Chemicals List - List of TRI PBT chemicals extracted from current list of TRI chemicals.
- TRI PBT Chemicals Rules - Information on the rules which have lowered reporting thresholds for PBT chemicals.
- Dioxin and Dioxin-like Compounds Toxic Equivalency Information Final Rule
TRI Chemicals and Other EPA Regulatory Programs
- TITLE III List of Lists (PDF) - A consolidated list of chemicals subject to reporting requirements under Sections 302 and 313 of the Emergency Planning and Community Right-to-Know Act (EPCRA), 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 Section 112(r) of the Clean Air Act.
- Regulatory Matrix of TRI Chemicals in other Federal Programs (PDF) - A matrix showing each TRI chemical and indicating whether it is regulated under other selected environmental laws.
Toxicity of TRI Chemicals
- TRI - Chemical Hazard Information Profiles (TRI-CHIP) - TRI's searchable database system contains hazard information for TRI chemicals. Among other features, users can search for toxicity information on TRI chemicals from multiple information sources and identify TRI chemicals associated with a critical adverse human health effect of interest.
- Agency for Toxic Substances and Disease Registry (ATSDR) ToxFAQs - ToxFAQs is a series of printable fact sheets that answer the most frequently asked questions about exposure to nearly 200 toxic chemicals and the effects of exposure on human health. Many of these chemicals are also TRI chemicals.
- Right-to-Know Hazardous Substance Fact Sheets from NJ Department of Health and Senior Services Exit - The New Jersey's Department of Health's library of fact sheets includes information on over 1600 hazardous substances, over half of which have been translated into Spanish. Many of these fact sheets cover TRI chemicals.
Toxic Chemicals Added to EPCRA Section 313 Under 1994 Chemical Expansion - Summary hazard information on the 286 chemicals that were added to the Toxics Release Inventory in 1994.