5 CFR § 839.1102 - How are my retirement benefits computed if I elect FERS under this part?

---
identifier: "/us/cfr/t5/s839.1102"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "5 CFR § 839.1102 - How are my retirement benefits computed if I elect FERS under this part?"
title_number: 5
title_name: "Administrative Personnel"
section_number: "839.1102"
section_name: "How are my retirement benefits computed if I elect FERS under this part?"
chapter_name: "OFFICE OF PERSONNEL MANAGEMENT"
subchapter_number: "B"
subchapter_name: "CIVIL SERVICE REGULATIONS"
part_number: "839"
part_name: "CORRECTION OF RETIREMENT COVERAGE ERRORS UNDER THE FEDERAL ERRONEOUS RETIREMENT COVERAGE CORRECTIONS ACT"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Title II, Pub. L. 106-265, 114 Stat. 770."
regulatory_source: "66 FR 15609, Mar. 19, 2001, unless otherwise noted."
cfr_part: "839"
---


# 839.1102 How are my retirement benefits computed if I elect FERS under this part?

OPM will compute your retirement benefit as if you were properly put in FERS on the effective date of the error. All the eligibility and benefit computation rules for FERS apply to your retirement benefit.