5 CFR § 1620.31 - Definition.

---
identifier: "/us/cfr/t5/s1620.31"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "5 CFR § 1620.31 - Definition."
title_number: 5
title_name: "Administrative Personnel"
section_number: "1620.31"
section_name: "Definition."
chapter_name: "FEDERAL RETIREMENT THRIFT INVESTMENT BOARD"
part_number: "1620"
part_name: "EXPANDED AND CONTINUING ELIGIBILITY"
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. 8474(b)(5) and (c)(1)."
regulatory_source: "64 FR 31057, June 9, 1999, unless otherwise noted."
cfr_part: "1620"
---


# 1620.31 Definition.

As used in this subpart, *move* means moving from a position covered by CSRS or FERS to a NAF instrumentality of the DOD or Coast Guard, or *vice versa,* without a break in service of more than one year.