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EPANonrulemakingEPA-HQ-OPPT-2018-0443

Octamethylcyclotetra- siloxane (D4); TSCA Review

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Last modified
May 29, 2026
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closed 238d ago
Semiconductor Industry Association filings
2

Activity

Semiconductor Industry Association filed 2 comments on this docket between Aug 4, 2020 and Dec 5, 2025. 16 other organizations filed here. The comment window closed 238d ago.

What Semiconductor Industry Association filed (2)

Dec 5, 2025· Comment submitted by Semiconductor Industry Association (SIA)· EPA-HQ-OPPT-2018-0443-0093

Please see the attached comments of the Semiconductor Industry Association (SIA).

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Aug 4, 2020· Comment submitted by David Issacs, Semiconductor Industry Association (SIA)· EPA-HQ-OPPT-2018-0443-0009

Please find the attached comments of the Semiconductor Industry Association (SIA).

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Abstract

EPA is interested in information on Octamethylcyclotetra- siloxane (D4) (CASRN 556-67-2). EPA encourages the public to submit use, hazard, and exposure information to this docket. This chemical is also known as Cyclotetrasiloxane, 2,2,4,4,6,6,8,8-octamethyl-

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Co-filers (16)

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