SECTION 12. EARLY

TERMINATION OF PREVIOUSLY APPROVED SUBSTITUTE MORTALITY TABLES IN CONJUCTION WITH THE REPLACEMENT OF GENERALLY APPLICABLE MORTALITY TABLES

.01 Regulatory requirement to termi- nate use of previously approved substi- tute mortality tables . Section 1.430(h) (3)-2(c)(6)(ii)(E) provides that guidance published in the Internal Revenue Bulletin will specify the date by which the use of a plan’s substitute mortality tables 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. The generally applicable mortality tables were replaced for plan years beginning on or after January 1, 2024, in TD 9983, 88 FR 72357.

.02 Plans with significant changes in cov- erage . If a substitute mortality table was first approved for use for a plan year that began before January 1, 2025, and the number of individuals covered by the substitute mortality table is less than 80 percent or more than 120 percent of the average number of individuals in that population over the 12-month periods covered by the experience study, then the substitute mortality table may not be used for a plan year beginning on or after January 1, 2026. This termination, which is pursuant to § 1.430(h)(3)-2(c)(6)(ii)(E), applies without regard to whether the actuary makes the certification described in § 1.430(h)(3)-2(c)(6)(iii)(A). .03 Other plans . If a plan is not described in section 12.02 of this revenue procedure, there is no early termination of the use of previously approved substitute mortality tables merely because of the replacement of the generally applicable mortality tables specified in § 430(h)(3) (A) and § 1.430(h)(3)-1 described in section 12.01 of this revenue procedure.