5 CFR § 1650.21
Information provided by employing agency or service
November 4, 2020
When a TSP participant separates from Government service, his or her employing agency or service must report the separation and the date of separation to the TSP record keeper. Until the TSP record keeper receives this information from the employing agency or service, it will not pay a post-employment withdrawal.
[84 FR 46421, Sept. 4, 2019]