5 CFR § 1640.1 - Definitions.

---
identifier: "/us/cfr/t5/s1640.1"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "5 CFR § 1640.1 - Definitions."
title_number: 5
title_name: "Administrative Personnel"
section_number: "1640.1"
section_name: "Definitions."
chapter_name: "FEDERAL RETIREMENT THRIFT INVESTMENT BOARD"
part_number: "1640"
part_name: "PERIODIC PARTICIPANT STATEMENTS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "5 U.S.C. 8439(c)(1) and (c)(2), 5 U.S.C. 8474(b)(5) and (c)(1)."
regulatory_source: "68 FR 35501, June 13, 2003, unless otherwise noted."
cfr_part: "1640"
---


# 1640.1 Definitions.

Definitions generally applicable to the Thrift Savings Plan are set forth at 5 CFR 1690.1.