(330 ILCS 60/4) (from Ch. 126 1/2, par. 32)
    Sec. 4. Each person in the employ of a private employer or of the State of Illinois or a political subdivision, except as in this Section provided, who, for the purpose of entering the military service, has left or leaves such employ and actually entered the military service as herein defined and who thereafter, (1) receives a certificate or other evidence of honorable discharge or satisfactory completion of his military service under the laws of the United States, and (2) is, at the time of such discharge or completion of such military service, still qualified to perform the duties of the position of employment which he has left, and (3) makes application for re-employment within 90 days after he is relieved from such military service, or from hospitalization continuing after discharge for a period of not more than one year, shall be restored by such employer to the position of employment which he left with the same increases in status, seniority and wages that were earned during his term of military service by employees in like positions who were on the job at the time such returning serviceman entered the service, or to a position of like seniority, status and pay, unless such employer's circumstances have so changed as to make it impossible or unreasonable to do so; however, if such employee otherwise qualified for such reemployment is not qualified to perform the duties of the position of employment which he has left to enter such military service, by reason of disability sustained during such service but qualified to perform the duties of any other position in the employ of the employer, he shall be restored to such other position the duties of which he is qualified to perform as will provide him like seniority, status, and pay, or the nearest approximation thereof consistent with the circumstances in his case, unless, in the case of a private employer, such employer's circumstances have so changed as to make it impossible or unreasonable to do so.
    If an employee enters such military service and the position of employment which he left is filled by one or more employees who later enter such military service, the employees shall, upon release from military service, be given preference in the matter of employment in the order in which they entered military service, and the employer shall not be required to retain more than one of them in his employ.
    Each person in the employ of a private employer or of the State of Illinois or a political subdivision, except as in this Section provided, who, for the purpose of entering the military service, has left or leaves such employ but who has been rejected for lack of proper qualifications, shall likewise be restored by such employer to the position of employment which he left with the same seniority status and wage increases that an employee who was on the job at the time he left to enter the military service earned during the time such service rejected person was away from his employment because of his attempt to enter the military service, or to a position of like seniority, status and pay, provided, that at the time of such rejection he is qualified to perform the duties of the position of employment which he has left and has made application for re-employment within 90 days after receipt of official notice of such rejection.
    The employment restoration provisions of this Section do not apply to an employee of the State who was employed before entering or attempting to enter the military service in a position in a department or other agency in the Executive branch involving principal administrative responsibility for the determination of policy or for the way such policies are carried out.
(Source: P.A. 88-518.)