Toxics Release Inventory (TRI) Program

TRI Laws, Rulemakings and Notices

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Laws and Executive Orders

The Toxics Release Inventory (TRI) was established in 1986 by the Emergency Planning and Community Right-to-Know Act (EPCRA). In 1990, Congress passed the Pollution Prevention Act (PPA), which required that facilities report additional data on waste management and source reduction activities under TRI. The TRI-specific sections of these two laws are Section 313 of EPCRA and Section 6607 of PPA.

The Code of Federal Regulations (CFR) is the codification of rules published in the Federal Register by the executive departments and agencies of the Federal Government. It is divided into 50 titles that represent broad areas subject to Federal regulation, with environmental regulations contained mainly in title 40. TRI regulations can be found at 40 CFR Part 372 .

An Executive Order (EO) in 1993 required federal facilities to comply with Section 313 of EPCRA regardless of their primary North American Industry Classification System (NAICS) code. Three additional EOs reinforced this requirement.


The TRI Program is modified over time through rulemakings. You can browse TRI rulemakings or learn more about the regulatory process.

Current Regulatory Development Activities

The TRI Program is involved in several regulatory development activities:

  • Addition of 1-Bromopropane - EPA has published a proposed rule to add 1-bromopropane to the list of chemicals subject to TRI reporting. The National Toxicology Program has classified 1-brompropane as "reasonably anticipated to be a human carcinogen."
  • Addition of a Nonylphenol Category - EPA has published a final rule to add a nonylphenol category to the to the TRI list of reportable chemicals. Nonylphenol is highly toxic to aquatic organisms and has been found in ambient waters.
  • Addition of ortho-Nitrotoluene - EPA has finalized a rule to add ortho-nitrotoluene to the list of chemicals subject to TRI reporting. o-Nitrotoluene has been classified as "reasonably anticipated to be a human carcinogen" by the National Toxicology Program (NTP).
  • Potential TRI Sectors Expansion - EPA is considering whether to broaden the scope of industry sectors covered by EPCRA § 313 (the Toxics Release Inventory Program) to include the following industry sectors: Steam Generation from Coal and/or Oil, Petroleum Bulk Storage, Iron Ore Mining, Phosphate Mining, Large Dry Cleaning and Solid Waste Combustors and Incinerators.
  • Requiring Electronic Reporting Under Section 313 of EPCRA - EPA has finalized a rule to require the electronic reporting of non-confidential TRI data using the Web-based TRI-MEweb reporting application.
  • Modification of Toxics Release Inventory Reporting Requirements Primarily Associated with Metal MiningAfter careful consideration of the full regulatory agenda, current priorities, and resources, EPA has withdrawn from Office of Management and Budget review a draft notice of proposed rulemaking regarding reporting requirements for the metal mining industry under the TRI Program. Individual metal mining facilities continue to remain responsible for complying with their statutory TRI reporting obligations under Section 313 of the Emergency Planning and Community Right-to-Know Act (EPCRA).    
  • Articles Exemption Clarification Proposed Rule - In August of 2009, EPA proposed a rule to clarify the TRI articles exemption. EPA has since withdrawn the proposal and is considering publishing a supplemental proposed rule in order to respond to comments received.

Information Collection Requests (ICRs)

An ICR is a set of documents that describe reporting, record keeping, survey or other information collection requirements imposed on the public by EPA. The ICR provides an overview of the collection and estimates the cost and time for the public to respond. The public may view an ICR and submit comments on it at any time. TRI ICRs are resubmitted for approval by the Office of Management and Budget (OMB) every 2-3 years.

2014 TRI ICR Renewals

Request for Comments on Proposed Renewal of TRI Reporting Forms
(EPA ICR No. 1363.23 OMB Control Number 2025-0009)

2011 TRI ICR Renewals

Request for Comments on Proposed Renewal of TRI Reporting Forms
(EPA ICR No. 1363.21 OMB Control Number 2025-0009)