TSCA Updates: Reporting Deadline Moved for 16 Chemicals

Posted on 6/13/2025 by Lion Technology Inc.

With a Final Rule on June 9, EPA moved the deadline for chemical manufacturers to submit certain unpublished safety and health studies concerning 16 chemicals specified in a December 2024 rule. The list includes acetaldehyde, benzene, hydrogen fluoride, styrene, vinyl chloride, and other substances—all of which are designated by EPA as high priority substances for risk evaluations mandated by TSCA, as amended.

For all 16 chemicals listed in the 2024 rule, the deadline to report is now May 22, 2026. EPA extended the submission deadline, in part, to allow more time for development of guidance to assist the regulated community with data submissions.

The chemicals covered by this reporting requirement are:

4,4-Methylene bis(2-chloraniline)
4-tert-octylphenol(4-(1,1,3,3-Tetramethylbutyl)-phenol)
Acetaldehyde
Acrylonitrile
Benzenamine
Benzene
Bisphenol A
Ethylbenzene
Hydrogen fluoride
N-(1,3-Dimethylbutyl)-N’-phenyl-p-phenylenediamine (6PPD)
2-anilino-5-[(4-methylpentan-2-yl) amino]cyclohexa-2,5-diene-1,4-dione (6PPD-quinone)
Naphthalene
Styrene
Tribomomethane (Bromoform)
Triglycidyl isocyanurate
Vinyl Chloride

More information about this reporting requirement under TSCA §8(d) can be found on EPA's website.

TSCA Updates: Reporting Deadline Moved for 16 Chemicals

Draft Risk Evaluations for 2 Phthalates

On June 5, EPA announced that Draft Risk Evaluations are available for two phthalates—dibutyl phthalate (DBP) and diethylhexyl phthalate (DEHP). The agency’s preliminary finding is that both substances pose “unreasonable risk” to human health and the environment. Read the announcement in the Federal Register here.

EPA will accept public comments on the draft risk evaluations until August 5, 2025. Under the Toxic Substances Control Act (TSCA), as amended, a finding of unreasonable risk must be followed by regulation to address the risk by restricting activity involving the chemical (manufacturing, distribution, etc.) or enacting workplace protections.

Note: The TSCA Activity Tracker has been updated.

Master TSCA Compliance

The Toxic Substances Control Act (TSCA) is complex and enforcement is stringent, making a comprehensive understanding of the rules critical for compliance. The law has broad applicability, subjecting all companies that “manufacture, use, process, distribute, import, or export chemical products” to complex reporting and management requirements.

Be confident you’re meeting your TSCA chemical management and reporting responsibilities! Sign up now for the interactive TSCA Regulations Online Course.

Find a Post

Search for:

Compliance Topics

Compliance Archives

Best course instructor I've ever had. Funny, relatable, engaging; made it interesting and challenged us as the professionals we are.

Amanda Schwartz

Environmental Coordinator

I really enjoyed this training. Even after years on both sides of the comprehension coin, I find myself still learning! The quality of the delivery exceeded much of the training I have received in the past.

Neil Ozonur

Safety Officer

This is the best RCRA training I've experienced! I will be visiting Lion training again.

Cynthia L. Logsdon

Principal Environmental Engineer

I can't say enough how pleased I was with this course! Everything finally makes sense.

Kim Graham

Lab Manager

Lion is at the top of the industry in compliance training. Course content and structure are updated frequently to make annual re-training enjoyable. I like that Lion has experts that I can contact for 1 year after the training.

Caroline Froning

Plant Chemist

The instructor does a great job at presenting material in an approachable way. I have been able to save my company about $30,000 in the last year with what I have learned from Lion!

Curtis Ahonen

EHS&S Manager

Given the choice, I would do all coursework this way. In-person courses go very fast without the opportunity to pause or repeat anything.

Ellen Pelton

Chemical Laboratory Manager

Excellent. I learned more in two days with Lion than at a 5-day program I took with another provider.

Francisco Gallardo

HES Technician

The instructor was great, explaining complex topics in terms that were easily understandable and answering questions clearly and thoroughly.

Brittany Holm

Lab Supervisor

I will never go anywhere, but to Lion Technology.

Dawn Swofford

EHS Technician

Download Our Latest Whitepaper

Explore ten hazardous waste management errors that caused generators in California the most trouble last year.

Download

By submitting your phone number, you agree to receive recurring marketing and training text messages. Consent to receive text messages is not required for any purchases. Text STOP at any time to cancel. Message and data rates may apply. View our Terms & Conditions and Privacy Policy.