20 CFR § 225.35 - When a PIA used in computing a retirement annuity can be increased for DRC's.

---
identifier: "/us/cfr/t20/s225.35"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "20 CFR § 225.35 - When a PIA used in computing a retirement annuity can be increased for DRC's."
title_number: 20
title_name: "Employees' Benefits"
section_number: "225.35"
section_name: "When a PIA used in computing a retirement annuity can be increased for DRC's."
chapter_name: "RAILROAD RETIREMENT BOARD"
subchapter_number: "B"
subchapter_name: "REGULATIONS UNDER THE RAILROAD RETIREMENT ACT"
part_number: "225"
part_name: "PRIMARY INSURANCE AMOUNT DETERMINATIONS"
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(b)(5)."
regulatory_source: "54 FR 12903, Mar. 29, 1989, unless otherwise noted."
cfr_part: "225"
---


# 225.35 When a PIA used in computing a retirement annuity can be increased for DRC's.

Delayed retirement credits earned at different times are added to the PIA used in computing a retirement annuity as follows:

| DRC's earned for month in | Are added to PIA |
| --- | --- |
| Years before the year the employee annuity begins | On the date the annuity begins. |
| Year the annuity begins | On January 1 of the year after the annuity begins. |
| Years after the annuity begins, and before the year the employee attains age 70 (72 before 1984) | On January 1 of the year after the credits are earned. |
| Year the employee attains age 70 (72 before 1984) | In the month age 70 (or 72) is attained. |