5 U.S. Code § 8431

5 U.S. Code § 8431 is about Certain transfers to be treated as a separation. It is under Subchapter III (Thrift Savings Plan) of Chapter 84 (Federal Employees’ Retirement system) of Subpart G (Insurance And Annuities) of Part III (Employees) of Title 5 (Government Organizations and Employees) of the Code.

(a) For purposes of this subchapter, separation from Government employment includes a transfer from a position that is subject to one of the retirement systems described in subsection (b) to a position that is not subject to any of them.

(b) The retirement systems described in this subsection are—
(1)the retirement system under this chapter;
(2)the retirement system under subchapter III of chapter 83; and
(3)any other retirement system under which individuals may contribute to the Thrift Savings Fund through withholdings from pay.