Toxics Release Inventory (TRI) Program

TRI Rulemakings

TRI rulemakings are grouped below based on whether they are related to chemicals, industry sectors or other changes in TRI reporting requirements. Links to rules published before 2009 go directly to the relevant text in the Federal Register. 

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Related to Toxic Chemicals Covered by TRI


Addition of 1-Bromopropane

Addition of National Toxicology Program Carcinogens


Chromite Ore from the Transvaal Region of South Africa

Diisononyl Phthalate Category

Dioxin: Addition of Dioxin and Dioxin-Like Compounds

Hydrochloric Acid

Hydrogen Sulfide

TRI Dioxin and Dioxin-like Compounds Toxic Equivalency Reporting Rule

Lead and Lead Compounds; Lowering of Reporting Thresholds

Methyl Isobutyl Ketone

Methyl Ethyl Ketone

Nonylphenol Category


Persistent Bioaccumulative Toxic (PBT) Chemicals;
Lowering of Reporting Thresholds for Certain PBT Chemicals;
Addition of Certain PBT Chemicals

Deletion of Certain Chemicals from the List of Chemicals Subject to Reporting under Section 313

Addition of Certain Chemicals

Related to Industry Sectors Covered by TRI

Updating the TRI North American Industry Classification System (NAICS) Codes

Toxic Chemical Release Reporting Using North American Industry Classification System (NAICS) Rule

Addition of Facilities in Certain Industry Sectors

Related to Other Changes in TRI Reporting Requirements

Electronic Reporting of Toxics Release Inventory Data

TRI Reporting in Indian Country

Toxics Release Inventory Articles Exemption Clarification Proposed Rule

Note: This rule was withdrawn in 2011.

TRI Burden Reduction Rule 

Note: The Omnibus Appropriations Act of 2009 reverts the TRI reporting requirements to those prior to this rule. This rule is no longer in effect.   

Toxics Release Inventory Form A Eligibility Revisions
Implementing the 2009 Omnibus Appropriations Act

TRI Reporting Forms Modification Rule

Overburden Exemption