Notice
13 May 2025
regulatory compliance, chemicals, irs, superfund tax, chlorobutyl rubber, business tax
🧪Superfund Tax Proposal on Chlorobutyl Isobutylene Isoprene Rubber
This notice of filing announces that a petition has been filed requesting that chlorobutyl isobutylene isoprene rubber (((C<INF>4</INF>H<INF>8</INF>)<INF>x</INF>(C<INF>5</INF>H<INF>8</INF>)<INF>y</INF> (Cl<INF>2</INF>)<INF>z</INF>; x = 7036, y = 88, z = 70)), also known as CIIR, 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.
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