Update 

The U.S. Environmental Protection Agency (EPA) has announced a further extension of the reporting deadline for unpublished health and safety data on 16 chemicals under TSCA Section 8(d). The new deadline for all substances is now May 22, 2026. 

This extension gives EPA additional time to finalize guidance and address industry concerns, particularly around submissions involving confidential business information. The chemicals affected include benzene, bisphenol A, styrene, vinyl chloride, among others under consideration for TSCA risk evaluation. 

These reports will support EPA’s ongoing chemical prioritization and risk management efforts. 

Original text 

In response to stakeholder requests, the U.S. Environmental Protection Agency (EPA) has announced an extension of the reporting deadlines under the Toxic Substances Control Act (TSCA) Health and Safety Data Reporting Rule. The rule mandates manufacturers and importers of 16 specified chemical substances to submit lists and copies of unpublished health and safety studies to EPA.   

Extended Reporting Deadline  

The original reporting deadline for all 16 chemical substances was March 13, 2025. However, EPA has now extended the deadlines as follows:  

• Vinyl chloride – New deadline: June 11, 2025  

• Remaining 15 chemical substances – New deadline: September 9, 2025