5 CFR § 1620.34 - Employees who move from a NAF instrumentality to a Federal Government agency.

---
identifier: "/us/cfr/t5/s1620.34"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "5 CFR § 1620.34 - Employees who move from a NAF instrumentality to a Federal Government agency."
title_number: 5
title_name: "Administrative Personnel"
section_number: "1620.34"
section_name: "Employees who move from a NAF instrumentality to a Federal Government agency."
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"
---


# 1620.34 Employees who move from a NAF instrumentality to a Federal Government agency.

(a) An employee of a NAF instrumentality who moves from a NAF instrumentality to a Federal Government agency and who elects to be covered by a NAF retirement system is not eligible to participate in the TSP. Any TSP contributions relating to a period for which an employee elects retroactive NAF retirement coverage must be removed from the TSP as required by the regulations at 5 CFR part 1605.

(b) An employee of a NAF instrumentality who moves from a NAF instrumentality to a Federal Government agency and who elects to be covered by CSRS or FERS will become eligible to participate in the TSP as determined in accordance with 5 CFR part 1600.