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TSCA Section 8(e): EPA Substantial Risk Reporting

TSCA substantial risk reporting (TSCA §8(e)) explained: who must report, what counts as substantial risk, the 30-day timeline, exclusions and CDX filing.

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Regulatory citation: Toxic Substances Control Act, Section 8(e), 15 U.S.C. 2607(e), Notice to Administrator of Substantial Risks; EPA TSCA Section 8(e) Guidance, 68 FR 33129

What Is TSCA Section 8(e)?

Section 8(e) of the Toxic Substances Control Act requires any person who manufactures, processes or distributes a chemical substance or mixture to tell EPA immediately when they obtain information that reasonably supports a conclusion that the chemical presents a substantial risk of injury to health or the environment. The only exception is where the person has actual knowledge that EPA has already been adequately informed.

Section 8(e) is a statutory duty. EPA explains how it applies in its published guidance (68 FR 33129) rather than in a CFR part.

Why Substantial Risk Reporting Matters

Section 8(e) notices give EPA early warning of serious hazards found in company studies, incidents or monitoring. Failing to report is a TSCA violation, and compliance officials keep personal responsibility for making sure reports are made.

Core Obligations

1. Know Who Must Report (TSCA 8(e))

The duty applies to manufacturers, including importers, processors and distributors in commerce. EPA states that section 8(e) has no exemption for small businesses, and that small volumes, manufacture for export only and research and development do not qualify for exemption. Trade associations and consortia may submit on behalf of member companies.

2. Recognize Substantial Risk Information (Guidance Part V)

EPA describes substantial risk as a risk of considerable concern, weighing the seriousness of the effect against the likelihood that it will occur. Examples of serious human health effects include cancer, birth defects, mutagenicity, death, or serious or prolonged incapacitation where one or a few chemicals are strongly implicated. Environmental examples include pronounced bioaccumulation and ecologically significant changes in species relationships.

3. Understand How Exposure Is Treated

For serious human health effects, EPA's guidance says the fact that the chemical is in commerce is enough evidence of exposure. For most other effects, including most environmental effects, the information must involve or be accompanied by significant potential exposure.

4. Know When Information Is Obtained

Under the guidance, a company obtains information when an officer or employee capable of appreciating its significance receives it. Companies may set up internal procedures for employees to pass on possible substantial risk information. An employee who uses an established, publicized procedure has met their individual obligation.

5. Report Within 30 Calendar Days

The statute says immediately. EPA's guidance treats a non-emergency report as immediate if EPA receives it within 30 calendar days of the date the company obtained the information.

6. Phone In Emergency Incidents

Emergency incidents of environmental contamination that seriously threaten people or other organisms should be reported immediately by telephone to the National Response Center at 1-800-424-8802, or to the EPA Administrator or Regional Administrator. Non-emergency incidents should be reported within 90 calendar days, unless already reported to another EPA office or a federal or state agency within that period.

7. Apply the Exclusions Carefully

Information generally does not need reporting if it comes entirely from EPA or other federal reports, scientific publications and databases, U.S. news media or certain scientific meetings and EPA-sponsored conferences. Information that only corroborates well-established effects also need not be reported, except for emergency incidents.

8. File Through CDX

Substantial risk notices with confidential business information claims must be submitted electronically through EPA's Central Data Exchange (CDX), using the section 8(e) application in the Chemical Information Submission System. Voluntary For Your Information (FYI) submissions use a separate CDX tool.

Common Compliance Approaches

Publish an Internal 8(e) Procedure

Tell researchers, toxicologists, plant managers and safety staff where to send possible substantial risk findings, and train them on it.

Use a Review Panel With a Clock

A small team of toxicology, legal and regulatory staff reviews each finding and tracks the 30-day deadline from the date it was obtained.

Check Contracts and Studies

Make sure contract labs and partners send study results promptly, so the company knows when it obtained the information.

Example: Substantial Risk Reporting in Practice

A coatings manufacturer commissions a 90-day animal study on a new additive. The contract lab reports unexpected developmental effects at moderate doses. A company toxicologist receives the report on March 3 and flags it under the internal procedure the same day. The review panel concludes the finding reasonably supports a substantial risk conclusion, and the regulatory team files a section 8(e) notice through CDX on March 24, well inside the 30-day window.

Related regulations: EPA TSCA Chemical Data Reporting, EPA PCB Regulations, EPA Release Reporting.

Note: Section 8(e) is a federal statutory duty explained in EPA guidance. Check the statute, EPA's current guidance and its reporting web pages before deciding a finding is not reportable.

Frequently Asked Questions

Is there a small business exemption?

No. EPA states that section 8(e) does not provide exemptions for small businesses, small volumes, export-only manufacture or research and development.

Do I need to report a study that is already published?

Generally not. Information taken entirely from scientific publications, federal reports or public conferences usually falls outside the requirement.

How long do I have to report?

EPA treats a non-emergency notice as timely if it is received within 30 calendar days of when the company obtained the information. Emergency contamination incidents should be phoned in immediately.

This guide is for general information only and is not legal advice. Always check the current text of the regulation with the relevant regulator.

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