
EPA Flags Unreasonable Risk from D4 in Industrial and Environmental Use
EPA draft risk evaluation finds octamethylcyclotetrasiloxane (D4) poses significant risks to workers and aquatic life, signalling regulatory change for industry.


The U.S. Environmental Protection Agency (EPA) has announced a critical extension for the submission deadline related to annual electronic reporting for polymers under the Toxic Substances Control Act (TSCA). Specifically, this extension pertains to polymers manufactured in compliance with the polymer exemption criteria of the TSCA New Chemicals Program. The new deadline is now set for 31 March 2024, offering relief to manufacturers and importers facing difficulties with the EPA's newly launched electronic reporting tool.
The polymer exemption is a part of the TSCA New Chemicals Program designed to lighten the regulatory load for the industry. It allows for the manufacturing of certain polymers without the need for a premanufacture notice or an exemption notice. This policy encourages the production of safer polymers and enables the EPA to allocate its review resources to substances with potentially higher risks.
Entities that manufacture or import polymers under this exemption are obliged to maintain records proving compliance with the set criteria. Additionally, an annual report detailing the number of such polymers manufactured or imported during the previous calendar year is required. This report, which previously had a submission deadline of 31 January of the following year, must now include any confidentiality claims and be submitted electronically.
This extension is pertinent to manufacturers and importers of exempted polymers in 2023. To ascertain applicability, entities should consult the criteria outlined in 40 CFR 723.250. The shift to electronic submissions aims to streamline the reporting process and enhance compliance efficiency.
Reports and confidentiality claims must now be submitted through the EPA's Central Data Exchange (CDX) using the TSCA Section 5 Notices and Supports—ePMN application. This change marks a significant update to the exemption reporting requirement, necessitating the use of electronic methods for submission.
The EPA's decision to extend the reporting deadline reflects its dedication to facilitating industry compliance while safeguarding public health and the environment. Manufacturers and importers are encouraged to utilize this extension to acquaint themselves with the electronic reporting system and ensure their submissions are completed accurately and on time.
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