Government Seeks to Tax Hyper-Specific Chloro-Isobutene-Isoprene Rubber Formula
Published Date: 8/15/2025
Notice
Summary
A new chemical called chloro-isobutene-isoprene rubber might soon be added to the list of substances that have to pay the Superfund tax. Companies dealing with this chemical should pay attention because this could affect their costs. The government is asking for comments before making any final decisions, so now’s the time to speak up!
Analyzed Economic Effects
1 provisions identified: 0 benefits, 1 costs, 0 mixed.
Possible Superfund Tax on New Rubber
A petition has been filed asking that chloro-isobutene-isoprene rubber ((C4H8)n-(C5H7.31Cl0.69)m; n=97.75, m=2.25) be added to the list of substances subject to the Superfund tax. Companies that make, import, or sell this chemical should pay attention because adding it to the taxable list could increase their costs. The notice requests public comments and explicitly says this filing is not a final determination.
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