20 CFR § 228.13 - Computation of the tier I annuity component of a parent's insurance annuity.

---
identifier: "/us/cfr/t20/s228.13"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "20 CFR § 228.13 - Computation of the tier I annuity component of a parent's insurance annuity."
title_number: 20
title_name: "Employees' Benefits"
section_number: "228.13"
section_name: "Computation of the tier I annuity component of a parent's insurance annuity."
chapter_name: "RAILROAD RETIREMENT BOARD"
subchapter_number: "B"
subchapter_name: "REGULATIONS UNDER THE RAILROAD RETIREMENT ACT"
part_number: "228"
part_name: "COMPUTATION OF SURVIVOR ANNUITIES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "45 U.S.C. 231f."
regulatory_source: "60 FR 16368, Mar. 30, 1995, unless otherwise noted."
cfr_part: "228"
---


# 228.13 Computation of the tier I annuity component of a parent's insurance annuity.

The tier I annuity component of a parent's insurance annuity is dependent on whether one or two parents are entitled.

(a) *One parent entitled.* A parent's tier I annuity component is equal to 82
1/2 percent of the PIA computed under § 228.10 of this part.

(b) *More than one parent entitled.* A parent's tier I annuity component is equal to 75 percent of the PIA computed under § 228.10 of this part.

(c) The amounts computed under paragraph (a) or (b) of this section may be adjusted for the family maximum. See § 228.14 of this part.