- Skip Navigation

Note: This message is displayed if (1) your browser is not standards-compliant or (2) you have you disabled CSS. Read our Policies for more information.

Pollution Prevention

Pollution Prevention > Toxics Release Inventory Toxics Release Inventory

The Toxics Release Inventory (TRI) is required under the federal Emergency Planning and Community Right to Know Act (EPCRA), Section 313. It comprises a publicly available database that contains detailed information on the 683 chemicals and chemical categories that thousands of industrial and other facilities manage through disposal or other releases, recycling, energy recovery, or treatment.

The primary function of the TRI is to provide information about potential chemical releases and environmental waste generated and managed by local facilities. Only facilities that meet certain criteria must report. If you are unsure if your company or facility needs to report, there is a TRI Threshold Screening Tool available on the U.S. EPA website to help determine if the report is required for your industry.

What does the Toxics Release Inventory provide?

TRI includes information about:

  • On-site releases and other disposal of toxic chemicals to air, surface water and land
  • On-site recycling, treatment and energy recovery associated with TRI chemicals
  • Off-site transfers of toxic chemicals from TRI facilities to other locations
  • Pollution prevention activities at facilities
  • Releases of lead, mercury, dioxin and other persistent, bioaccumulative and toxic (PBT) chemicals
  • Facilities in a variety of industry sectors (including manufacturing, metal mining, and electric power generation) and some federal facilities.

The Toxics Release Inventory dataset is available on the U.S. EPA website.

Resources for TRI Reporting Facilities

Methods of Reporting

Indiana participates in the TRI Data Exchange and the TRI Report will simultaneously be sent to Indiana, therefore no paper or electronic reports should be sent to the state.

For more information about the Toxics Release Inventory, call the Compliance Technical Assistance Program at (800) 988-7901.