Illinois Statutes Chapter 40. Pensions § 5/4-108.4. Transfer of creditable service from Article 7 fund

(a) Any firefighter who was excluded from participation in an Article 4 fund because the firefighter earned credit for that service under Article 7 of this Code and who is a participant in the Illinois Municipal Retirement Fund may become an active participant in that firefighter pension fund by making a written application to the Board. Persons so applying shall begin participation on the first day of the month following the month in which the application is received by the Board. An employee who makes application for participation shall not be deemed ineligible to participate in the firefighter pension fund by reason of having failed to apply within the 3-month period specified in subsection (b) of Section 4-107.

(b) A firefighter who was excluded from participation in an Article 4 fund because the firefighter earned credit for that service under Article 7 of this Code and who is a participant in the Illinois Municipal Retirement Fund may also elect to establish creditable service for those periods of employment as a firefighter during which he or she was excluded from participation in an Article 4 fund by paying into the fund the amount that the person would have contributed had deductions from salary been made for this purpose at the time the service was rendered, together with interest thereon at 6% per annum, compounded annually, from the time the service was rendered until the date of payment, less any amounts transferred from the Illinois Municipal Retirement Fund under Section 7-139.10.

(c) In no event shall pension credit for the same service rendered by an employee be accredited in more than one pension fund or retirement system under this Code. If an employee applies for service credit under subsection (b), then any creditable service time accumulated in the Illinois Municipal Retirement Fund for the same period must be transferred to the Article 4 fund under Section 7-139.10.