WASHINGTON, May 13 -- Internal Revenue Service has issued a notice called: Superfund Tax on Chemical Substances; Request To Modify List of Taxable Substances; Notice of Filing for Chlorobutyl Isobutylene Isoprene Rubber (x = 7036, y = 88, z = 70).

The notice was published in the Federal Register on May 13 by Michael Beker, Senior Counsel (Energy, Credits, and Excise Tax), IRS Office of Chief Counsel.

Summary: This notice of filing announces that a petition has been filed requesting that chlorobutyl isobutylene isoprene rubber (((C 4H 8) x(C 5H 8) y(Cl 2) z; 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...