5 CFR § 890.603
Effective date
November 4, 2020
The effective date of an enrollment under §890.602 is the first day of the first pay period after the election is received by the retirement system, but not earlier than January 1, 1979.
[43 FR 35018, Aug. 8, 1978; 43 FR 38569, Aug. 29, 1978]