When transfer occurs.
CFR · 2024-01-01 · US · Title 5
(a) OPM, the Department of Defense, and the U.S. Coast Guard will transfer the amount specified in § 847.504 as soon as practicable after receipt of an election of retirement coverage under subpart D of this part. (b) The transfer of contributions may not be delayed until the employee retires or separates from service.
official document · source cfr-2024 · id 5:§ 847.505