5 CFR § 1650.3
Frozen accounts
November 4, 2020
(a) All withdrawals from the TSP are subject to the rules relating to spousal rights (found in subpart G of this part) and to domestic relations orders, alimony and child support legal process, and child abuse enforcement orders (found in 5 CFR part 1653).
(b) A participant may not withdraw any portion of his or her account balance if the account is frozen due to a pending retirement benefits court order, an alimony or child support enforcement order, or a child abuse enforcement order, or because a freeze has been placed on the account by the TSP for another reason.