Illinois Statutes Chapter 40. Pensions § 5/16-150. 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.