(40 ILCS 5/16-181.3)
To prescribe the manner of payment.
To prescribe by rule
the manner of repaying refunds and purchasing the various optional service
credits permitted under this Article. The rules may prescribe the conditions
under which installment payments or partial payments may be accepted and may
specify the method of computing any interest due.
(Source: P.A. 90-448, eff. 8-16-97.)