(40 ILCS 5/16-149.1) (from Ch. 108 1/2, par. 16-149.1)
    Sec. 16-149.1. Occupational disability benefit.
    (a) A member who becomes totally and immediately incapacitated for duty as the proximate result of bodily injuries sustained or a hazard undergone while in the performance and within the scope of his or her duties, if such injuries or hazard were not the consequence of the member's willful negligence, shall receive an occupational disability benefit upon making proper application. If application is made more than 90 days subsequent to the later of the commencement of disability or the date eligibility for salary ceases, benefits shall begin to accrue from the date of application, but service credit and credit for contributions will be earned from the date of disability. The benefit is not payable to, and credit for service and contributions may not be earned under this Section by, a member who is receiving a benefit under Section 16-133, 16-149, or 16-149.2, or who is receiving salary as a teacher, or is employed in any capacity as a teacher by the employers included under this System or in an equivalent capacity in any other public or private school, college or university, except as provided in Section 16-149.6.
    Proper proof of disability shall consist of: (1) a written certificate by at least 2 licensed and practicing physicians designated by the System, certifying that member is disabled and unable to perform assigned duties; (2) a written statement from the employer certifying that the member is disabled and not receiving a salary, and related information as to the cause and commencement of disability; and (3) a written statement from the member certifying that the member is not and has not been engaged in gainful employment.
    Occupational disability benefits under this Section shall be payable only if (1) on the basis of a claim filed by the applicant with the Illinois Workers' Compensation Commission, it is determined by the Commission that the disability was incurred while in the performance and within the scope of assigned duties, under the terms of the Illinois Workers' Compensation or Occupational Diseases Act, whichever applies, and the claim is adjudicated as compensable by the Commission under either of the aforesaid Acts; or (2) on the basis of a claim filed by the applicant with an insurance carrier with which the employer of the applicant has a workers' compensation insurance policy, it is determined under the terms of the aforesaid policy that the disability was incurred while in the performance and within the scope of the member's assigned duties and the claim is approved as compensable.
    (b) The occupational disability benefit shall be the greater of 60% of the member's contract salary rate at the time the disability benefit becomes payable or the member's annual contract rate on the date the disability commenced, and shall be payable monthly in equal installments. For part-time and substitute teachers after June 30, 1990, the benefit shall be the greater of the member's most recent annualized salary rate at the time the disability benefit becomes payable or the annualized salary rate or annual contract rate at the time the disability commenced.
    Any amounts provided for a member or a member's dependents under the Illinois Workers' Compensation Act, the Illinois Occupational Diseases Act or a workers' compensation insurance policy provided by the employer shall be applied as an offset to any occupational benefit provided under this Section in such manner as may be prescribed by the board.
    In addition to the above benefit, the member shall receive creditable service and credit for contributions that the member would have made in active employment during the period of disability, except as provided in Section 16-149.6. Creditable service and credit for contributions shall be calculated on the basis of the annual salary rate used in computing the benefit; however, such credit shall not be used in the determination of the period for which disability benefits are payable. A member who remains disabled after the termination of benefits due to age or the expiration of the maximum period for which benefits are payable shall be entitled to the retirement annuity provided under Section 16-133, notwithstanding that the member may not have the required minimum period of creditable service prescribed for such annuity.
    (c) Effective January 1, 1988, the occupational disability benefit shall continue until the time one of the following first occurs: (1) disability ceases; (2) the member requests termination of the benefit; or (3) the member is engaged or found to be able to engage in gainful employment, other than limited employment under Section 16-149.6. If the disability benefit is discontinued under item (3) but the member is subsequently found to be unable to be gainfully employed due to the disability which was the cause for his or her most recent incapacity to perform the duties of a teacher, the disability benefit will be resumed, upon notification of the System, as soon as the member is not eligible to receive salary.
    (d) The board shall prescribe rules governing the filing, investigation, control, and supervision of disability claims. Costs incurred by a claimant in connection with completing a claim for disability benefits shall be paid by the claimant.
(Source: P.A. 93-721, eff. 1-1-05; 94-539, eff. 8-10-05.)