EPA Adds Nine PFAS to Toxics Release Inventory (TRI)
On January 3, 2025, the U.S. Environmental Protection Agency (EPA) announced that facilities will need to report Toxics Release Inventory (TRI) data for nine additional per- and polyfluoroalkyl substances (PFAS) if these chemicals are manufactured, processed, or otherwise used above the applicable TRI threshold quantities. TRI reporting is required by the Emergency Planning and Community Right-to-Know Act (EPCRA). For the 2024 reporting year, 196 PFAS were on the TRI; the 2025 update brings the total number of PFAS on this list to 205.
The Nine Newly Added PFAS
The PFAS listed below are the nine that have been added for TRI Reporting Year 2025. The first TRI reports required to include these PFAS are due July 1, 2026.
- Ammonium perfluorodecanoate (PFDA NH4) (3108-42-7)
- Sodium perfluorodecanoate (PFDA-Na) (3830-45-3)
- Perfluoro-3-methoxypropanoic acid (377-73-1)
- 6:2 Fluorotelomer sulfonate acid (27619-97-2)
- 6:2 Fluorotelomer sulfonate anion (425670-75-3)
- 6:2 Fluorotelomer sulfonate potassium salt (59587-38-1)
- 6:2 Fluorotelomer sulfonate ammonium salt (59587-39-2)
- 6:2 Fluorotelomer sulfonate sodium salt (27619-94-9)
- Acetic acid, [(γ-ω-perfluoro-C8-10-alkyl)thio] derivs., Bu esters (3030471-22-5)
Toxics Release Inventory Data
The TRI was developed as a means for companies to publicly report the hazardous chemicals they manage in their facilities. The addition of chemicals to this list helps workers and communities to be more informed about potential hazards and keeps companies accountable. This aligns with environmental justice objectives and is intended to lead companies to develop and implement more sustainable and environmentally conscious practices.
What Reporting Businesses Need to Be Aware Of
As of January 1 of this year, suppliers of products containing any of the nine PFAS chemicals that have been recently added to the TRI are required to notify customers that these PFAS are present in the products.
The newly added PFAS and the 196 other listed PFAS compounds are classified as “chemicals of special concern.” These 205 PFAS are not subject to TRI reporting exemptions, even if they are present in extremely small quantities.
For more information about the TRI and related Right-to-Know reporting for your facility, contact Walden at 516-559-6976. Our experts are ready to assist with your required filing and can ensure that you are in compliance with all applicable regulatory requirements.

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For assistance completing all necessary chemical reporting for your facility, contact Walden’s Right-to-Know team at 516-559-6976!