Iowa Admin. Code r. 495-9.6
If a vested member terminates covered employment, takes a refund, and is subsequently approved for disability under the federal Social Security Act or the federal Railroad Retirement Act, the member may reinstate membership service credit for the period covered by the refund by paying the actuarial cost as determined in 495—subrule 8.1(1) and within 90 days after the date federal social security disability or railroad retirement disability payments begin. Repayments must be made by:
[ARC 4337C, IAB 3/13/19, effective 4/17/19]