5 CFR § 880.103 - Definitions.

---
identifier: "/us/cfr/t5/s880.103"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "5 CFR § 880.103 - Definitions."
title_number: 5
title_name: "Administrative Personnel"
section_number: "880.103"
section_name: "Definitions."
chapter_name: "OFFICE OF PERSONNEL MANAGEMENT"
subchapter_number: "B"
subchapter_name: "CIVIL SERVICE REGULATIONS"
part_number: "880"
part_name: "RETIREMENT AND INSURANCE BENEFITS DURING PERIODS OF UNEXPLAINED ABSENCE"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "5 U.S.C. 8347(a), 8461(g), 8716, 8913."
regulatory_source: "63 FR 10291, Mar. 3, 1998, unless otherwise noted."
cfr_part: "880"
---


# 880.103 Definitions.

For purposes of this part—

*Annuitant* means an individual who has separated from the Federal service with, and has retained, title to a CSRS or FERS annuity, has satisfied the age and service requirements for commencement of that annuity, and has filed an application for that annuity;

*Associate Director* means OPM's Associate Director for Retirement and Insurance or his or her designee;

*Authorized institution* means a government organization or official legally charged with making determinations of death in the State or country of the missing annuitant's domicile, citizenship, or disappearance;

*CSRS* means the Civil Service Retirement System established in subchapter III of chapter 83 of title 5, United States Code;

*FEGLI* means the Federal Employees Group Life Insurance program established in chapter 87 of title 5, United States Code;

*FEHBP* means the Federal Employees Health Benefits Program established in chapter 89 of title 5, United States Code;

*FERS* means the basic benefit portion of the Federal Employees Retirement System established in subchapters I, II, IV, V, and VI of chapter 84 of title 5, United States Code; *FERS* does not include benefits under the Thrift Savings Plan established under subchapters III and VII of chapter 84 of title 5, United States Code;

*Missing annuitant* means an individual who has acquired the status of missing annuitant under § 880.203(b).