Skip to content

Rev. Proc. 2017-55 is superseded. Sections 24.01(11), 26.02(4), and 31.01(1) of

SECTION 10. SUBSTITUTE BASE

Internal Revenue Bulletin 2024-34 · 2026-10-03 edition · updated 2026-10-04 · United States

TABLE CONSTRUCTION

.01 Mortality ratio . For each population for which approval to use substitute mortality tables is requested, the applicant’s request must include the mortality ratio determined pursuant to § 1.430(h) (3)-2(d)(4)(ii).

.02 Substitute Base Table for popula- tion with full credibility . With respect to a population with mortality experience that is fully credible, the applicant’s request must contain the Substitute Base Table constructed pursuant to § 1.430(h)(3)-2(d)(4).

.03 Substitute Base Table for popula- tion with partial credibility . With respect to a population with mortality experience that is only partially credible, the applicant’s request must include:

(1) A base substitute mortality table constructed using the rules in § 1.430(h) (3)-2(d)(4) as if the population had mortality experience that is fully credible;

(2) The partial credibility weighting factor for the population determined pursuant to § 1.430(h)(3)-2(e)(2); and

(3) The Substitute Base Table constructed using the rules in § 1.430(h)(3)2(e)(1).

Get a plain-English answer with a citation back to this text.

Ask AI about this code
▸Contents — Internal Revenue Bulletin 2024-34

GoCodebook provides public access, search, citation, multilingual explanation, and practical interpretation of legally adopted building regulations. It is not a substitute for the official ICC or California code publications.