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TRI Chemicals

TRI Chemicals Quick Finder
TRI chemical lists Toxicity Information PBT chemicals Regulatory Program Information TRI Chemical List Changes (1987- 2005) Chemical Specific Guidance Documents.

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The current TRI toxic chemical list contains 581 individually listed chemicals and 30 chemical categories (including 3 delimited categories containing 58 chemicals). If the members of the three delimited categories are counted as separate chemicals then the total number of chemicals and chemical categories is 666 (i.e., 581 + 27 + 58).

TRI Chemical Lists

Note: Three chemicals on the current list (methyl mercaptan, hydrogen sulfide, and 2,2-dibromo-3-nitrilopropionamide) are under administrative stays and are not currently reportable.

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PBT Chemicals

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TRI Chemical List Changes (1987- 2005)

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Regulatory Program Information

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Toxicity Information

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