40 ILCS 5/8-230.7
2021 Illinois Compiled Statutes|Chapter 40 - PENSIONS|40 ILCS 5/ - Illinois Pension Code.|Article 8 - Municipal Employees', Officers', And Officials' Annuity And Benefit Fund--Cities Over 500,000 Inhabitants

Sec. 8-230.7.     Service rendered to Public Building Commission.(a) An employee or former employee of the Public Building Commission of  the city who has established credit under the Fund with regard to service to an  employer other than the Public Building Commission of the city may contribute  to the Fund and receive  credit for all periods of full-time employment with the Public  Building Commission created by the employing city occurring prior to 60 days  after the effective date of this amendatory Act, except for those periods for  which the employee retains a right to credit in another public pension fund or  retirement system established under this Code.  Such service credit shall  be paid for and granted on the same basis and under the same conditions as are  applicable in the case of employees who make payment for past service under  Section 8-230, provided that the person must also pay the corresponding  employer contributions, and further provided that the contributions and  service credit are permitted under Section 415 of the Internal Revenue Code  of 1986.  The contributions shall be based on the salary actually received  by the person from the Commission for that employment.(b) A person establishing service credit under subsection (a) or electing  to participate in the Fund under subsection (d) may, at the same time,  reinstate service credit that was terminated through receipt of a refund by  repaying to the Fund the amount of the refund plus interest at the effective  rate from the date of the refund to the date of repayment.(c) An eligible person may establish service credit under subsection (a)  and reinstate service credit under subsection (b) without returning to active  service as an employee under this Article, but the required contributions and  repayment must be received by the Fund before the person begins to receive a  retirement annuity under this Article.(d) Within 60 days after beginning full-time employment with the Public  Building Commission of the city (or within 60 days after the effective date  of this amendatory Act of the 92nd General Assembly, whichever is later), a  person having service credits in this Fund or reinstating service credits  under subsection (b) may elect to participate in this Fund with respect to  that Public Building Commission employment.  An employee who participates in  this Fund with respect to Public Building Commission employment shall not,  with respect to the same period of employment, participate in any other pension  plan for employees of the Commission for which contributions are made by the  Commission, except that this provision shall not prevent an employee from  making elective contributions to a plan of deferred compensation during that  period.  An election under this subsection (d), once made, is irrevocable.Participation under this subsection shall be on the same basis and under  the same conditions as are applicable in the case of participating employees  of the city.  Employee contributions shall be based on the salary actually  received by the employee for that employment.  Employer contributions shall  be paid by the Public Building Commission rather than the city, at a rate to  be determined by the Retirement Board.    (Source: P.A. 92-599, eff. 6-28-02.)