- Once you’ve determined whether your facility meets all three reporting criteria, gather information on all the TRI chemicals managed during the calendar year.
- Register a new user account or sign-in to the EPA’s Central Data Exchange (CDX) to complete the required chemical reporting forms using TRI-MEweb.
- Verify that your certifying official has certified the completed TRI forms and submit by July 1
Toxics Release Inventory
EPCRA Section 313: Toxics Release Inventory (TRI)
The Toxics Release Inventory (TRI) is Section 313 of the Emergency Planning and Community Right-to-Know Act (EPCRA). This law requires regulated facilities and federal installations to submit reports annually to both DEQ and the EPA describing chemical releases and waste management activities for over 600 toxic chemicals.
If a facility meets all three of the following criteria, they must report annually to the TRI Program by July 1:
- If a facility engages in manufacturing, electric power generation, commercial hazardous waste disposal, solvent recovery, or serves as bulk petroleum terminals. View the complete list of TRI-covered NAICS codes.
- The facility has the equivalent of at least 10 full-time employees
- Processes, manufactures, or uses at least one TRI-listed chemical at or above the reporting threshold.
Beginning in the 2014 reporting year, EPA no longer accepts paper submissions. If your facility must report to the TRI Program and you need guidance on electronic reporting.
Use the EPA Electronic Submission of TRI Reporting Forms for additional assistance.
TRI Resources
- Central Data Exchange (CDX)
EPA’s electronic reporting site - TRI Explorer
Generate TRI data reports on releases, transfers, and waste management - TRI National Analysis
Learn about EPA’s national data analysis and examine trends
Frequently Asked Questions
There are no federal fees or taxes associated with submitting a form R or form A under EPCRA Section 313; however, some states have similar reporting programs with fees that are associated with the submission of TRI forms. Check with your state’s TRI coordinator to be sure.
Oklahoma has no fees associated with the TRI program.
Yes. Oklahoma participates in the TRI Data Exchange (TDX) Program. Facilities that use the TRI-MEweb application will automatically submit their TRI report to the DEQ when they submit annually to EPA.
- As a part of the community right-to-know provision of EPCRA, information from TRI reporting must be made available to the public. The EPA has a number of tools useful for searching and analyzing TRI data.
Last Modified on
Nov 13, 2025
