This notice of filing announces that a petition has been filed requesting that chloro-isobutene-isoprene rubber ((C<INF>4</INF>H<INF>8</INF>)<INF>n</INF>- (C<INF>5</INF>H<INF>7.31</INF>Cl<INF>0.69</INF>)<INF>m</INF>; n=97.75, m=2.25) be added to the list of taxable substances. This notice of filing also requests comments on the petition. This notice of filing is not a determination that the list of taxable substances is modified.
This is a notice published in the Federal Register by Treasury Department, Internal Revenue Service. Notices communicate information, guidance, or policy interpretations but may not create new binding obligations.
This document is classified as a notice. It may or may not create enforceable regulatory obligations depending on its specific content.
Notice of filing and request for comments.
Written comments and requests for a public hearing must be received on or before October 14, 2025.
| Document Number | 2025-15564 |
| FR Citation | 90 FR 39468 |
| Type | Notice |
| Published | Aug 15, 2025 |
| Effective Date | - |
| RIN | - |
| Docket ID | - |
| Pages | 39468–39469 (2 pages) |
| Text Fetched | No |
| Part | Name | Agency |
|---|---|---|
| No linked CFR parts | ||
| Type | Proposed | Final | Method | Conf |
|---|---|---|---|---|
| No paired documents | ||||
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