Section 40 ILCS 5/6-226 - 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 the 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 credits and creditable service accumulated in this Fund to such Article 8, 9 or 13 fund. Such creditable service shall be transferred 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 accumulated to the credit of the applicant, including interest, on the books of the Fund on the date of transfer, but excluding any additional or optional credits, which credits shall be refunded to the applicant; and(2) municipality credits computed and credited under this Article, including interest, on the books of the Fund on the date the member terminated service under the Fund. Participation in this Fund as to any credits transferred under this Section shall terminate on the date of transfer.
(b) Any such elected city officer, county officer or sanitary district commissioner may reinstate credits and creditable service terminated upon receipt of a separation benefit, by payment to the Fund of the amount of the separation benefit plus interest thereon to the date of payment.