(40 ILCS 5/16-150) (from Ch. 108 1/2, par. 16-150)
    Sec. 16-150. Re-entry.
    (a) This Section does not apply to an annuitant who returns to teaching under the program established in Section 16-150.1, for the duration of his or her participation in that program.
    (b) If an annuitant under this System is again employed as a teacher for an aggregate period exceeding that permitted by Section 16-118, his or her retirement annuity shall be terminated and the annuitant shall thereupon be regarded as an active member.
    Such annuitant is not entitled to a recomputation of his or her retirement annuity unless at least one full year of creditable service is rendered after the latest re-entry into service and the annuitant must have rendered at least 3 years of creditable service after last re-entry into service to qualify for a recomputation of the retirement annuity based on amendments enacted while in receipt of a retirement annuity, except when retirement was due to disability.
    However, regardless of age, an annuitant in receipt of a retirement annuity may be given temporary employment by a school board not exceeding that permitted under Section 16-118 and continue to receive the retirement annuity.
    (c) Unless retirement was necessitated by disability, a retirement shall be considered cancelled and the retirement allowance must be repaid in full if the annuitant is employed as a teacher within the school year during which service was terminated.
    (d) An annuitant's retirement which does not include a period of at least one full and complete school year shall be considered cancelled and the retirement annuity must be repaid in full unless such retirement was necessitated by disability.
(Source: P.A. 95-331, eff. 8-21-07.)