SECTION 1. PURPOSE

This notice provides relief for the third and fourth calendar quarters of 2022, and the first calendar quarter of 2023, regarding the failure to deposit penalties imposed by section 6656 of the Internal Revenue Code (Code) as those penalties relate to the excise taxes imposed on certain chemicals under section 4661 of the Code and on certain imported substances under section 4671 of the Code (collectively, Superfund chemical taxes). This notice also provides that during the first, second, and third calendar quarters of 2023, the Internal Revenue Service (IRS) will not withdraw a taxpayer’s right to use the deposit safe harbor rules of § 40.6302(c)-1(b)(2) of the Excise Tax Procedural Regulations for failure to make required deposits of Superfund chemical taxes if certain requirements are met.