Section 40 ILCS 5/5-233 - Transfer of creditable service to Article 8, 9 or 13 fund(a) Any city officer as defined in Section 8-243.2 of this Code, any county officer elected by vote of the people who is a participant in a pension fund established under Article 9 of this Code, any county police officer who is a participant in a pension fund established under Article 9 of this Code, and any elected sanitary district commissioner who is a participant in a pension fund established under Article 13 of this Code, may apply for transfer of his or her credits and creditable service accumulated in this Fund to such Article 8, 9 or 13 fund. Such transfer shall be made forthwith. Payment by this Fund to the Article 8, 9 or 13 fund shall be made at the same time and shall consist of: (1) the amounts credited to the applicant through employee contributions; and(2) municipality contributions equal to the accumulated employee contributions as determined under item (1) above. Participation in this Fund shall terminate on the date of transfer.
(b) Any such elected city officer, county officer or sanitary district commissioner, and any such county police officer, may reinstate credits and creditable service terminated upon receipt of a refund, by payment to the Fund of the amount of the refund with interest thereon at the rate of 6% per year to the date of payment.