The employee deductions specified in § 841.503 are effective on the later of the first day of the first pay period beginning in 1987 or the first day an employee is covered by FERS.
5 C.F.R. §841.508
The employee deductions specified in § 841.503 are effective on the later of the first day of the first pay period beginning in 1987 or the first day an employee is covered by FERS.
5 C.F.R. §841.508