Basics of TRI Reporting

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

• TRI reporting criteria
• Overview of the TRI reporting process
• Data reported by facilities
• Annual TRI data cycle

TRI Reporting Criteria

If a facility meets the employee, industry sector, and chemical threshold criteria, it must report to the TRI Program. For more details about the reporting criteria, refer to the TRI Reporting Forms and Instructions.

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Facilities that meet all TRI reporting 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.

Overview of the TRI Reporting Process

The image below summarizes the TRI reporting process.

Data Reported by Facilities

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

• Environmental releases (into the air, water, and land)
• Recycling
• Energy recovery
• Treatment
• Disposal

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. For explanations of these terms, see the Common TRI Terms webpage.

Annual TRI Data Cycle

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 pub" width="1280" height="720" />

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 the Envirofacts TRI searches.

Mid-July-October: Ongoing Data Processing and Analysis

• The preliminary dataset is updated as additional reporting forms are processed.
• EPA conducts data quality checks.

October: Complete National Analysis Dataset Available

• EPA publishes the complete dataset and begins analyzing it to build the TRI National Analysis.

January: TRI National Analysis Available

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

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  • What You Can Do