SECTION 1. PURPOSE

.01 This revenue procedure sets forth the procedure by which the sponsor of a defined benefit plan that is subject to the funding requirements of § 430 of the Internal Revenue Code (Code) may request approval from the Internal Revenue Service (IRS) for the use of plan-specific substitute mortality tables in accordance with § 430(h)(3)(C) and § 1.430(h)(3)-2 of the Treasury Regulations. ¹

.02 This revenue procedure updates the procedures set forth in Rev. Proc. 201755, 2017-43 IRB 373, and reflects the amendments to § 1.430(h)(3)-2 that were published in the Federal Register on July 31, 2024 (TD 10005, 89 FR 61343). .03 In accordance with § 1.430(h)(3)2(c)(6)(ii)(E), this revenue procedure also specifies the date by which the use of a previously approved substitute mortality table must be terminated in conjunction with the replacement of the generally applicable mortality tables specified in § 430(h)(3)(A) and § 1.430(h)(3)-1.