An official website of the United States government.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Toxics Release Inventory (TRI) Program

Basics of TRI Reporting

Each year, Toxics Release Inventory (TRI) data are submitted by certain industrial facilities and made available to the public.

On this page:

TRI Reporting Criteria

If a facility meets all three of the criteria below, it must report to the TRI Program. Please note that the reporting criteria are described here in general terms. For more specifics, refer to the TRI Reporting Forms and Instructions document.

Illustration of a generic industrial facility
Is in a specific industry sector (e.g., manufacturing, mining, electric power generation). Note that federal facilities must report regardless of industry sector if they meet the other two criteria.
Illustration of a diverse group of 10 employees wearing hardhats.
Employs 10 or more full-time equivalent employees
Illustration of four laboratory glass containers of different shapes and sizes containing different colored liquids.
Manufactures, processes, or otherwise uses a TRI-listed chemical in quantities above threshold levels in a given year.  Note that Persistent Bioaccumulative Toxic chemicals (PBTs) have lower thresholds than other TRI chemicals.

Facilities that meet all of these criteria must:

  • Submit a TRI Form R for each TRI-listed chemical it manufactures, processes, or otherwise uses in quantities above the reporting threshold. (Note: Facilities may be eligible to submit the shorter Form A if they meet certain criteria. See the TRI Reporting Forms and Instructions for details.)
  • Submit each TRI form to both EPA and the state in which the facility is located (or to the appropriate tribe, if located in Indian country).
  • Submit each reporting form using TRI-MEweb, EPA's online TRI reporting application.

Top of Page

Data Reported by Facilities

 Industrial facilities report data about how they are managing chemical waste through:

  • Recycling
  • Energy recovery
  • Treatment
  • Disposal
  • Environmental releases

Additionally, facilities tell EPA about how they are reducing the amount of chemical waste that enters the environment and/or how they are preventing waste from being created in the first place.

Top of Page

Annual TRI Data Cycle

A diagram identifying some key points in the annual TRI data cycle. In January, facilities begin submitting TRI reporting forms covering the previous calendar year. These forms are due to EPA and the relevant state or tribe by July 1. In mid-July, EPA publishes the preliminary dataset and begins analyzing the data. In October, EPA publishes the complete dataset. The following January, EPA publishes the TRI National Analysis report.The TRI Program collects, processes and analyzes TRI data on an annual cycle. In addition to activities that occur at specific times of the year, the TRI Program continually conducts data quality checks and provides analytical support for enforcement efforts led by EPA’s Office of Enforcement and Compliance Assurance (OECA).

January-June: Facilities Prepare and Submit Forms

  • TRI Program publishes reporting instructions, updates training materials, and releases a new version of the TRI-MEweb reporting software. 
  • Facilities prepare and submit TRI forms covering chemical waste management and pollution prevention activities that occurred during the previous calendar year.

July 1: TRI Forms Due to EPA

  • Deadline for facilities that meet TRI reporting requirements to submit reporting forms to EPA and the relevant state or tribe.

Mid-July: TRI Preliminary Dataset Available

  • Preliminary, facility-level data for the previous calendar year are available in downloadable files on the TRI website and in Envirofacts.

July-October: Ongoing Data Processing and Analysis

  • The preliminary dataset is updated as additional reporting forms are processed.
  • EPA conducts additional data quality checks, publishes the complete dataset, and begins analyzing the data. 

January: TRI National Analysis Available

  • EPA publishes the TRI National Analysis, an in-depth look at the previous calendar year's TRI data.

Top of Page