820 ILCS 110/ Equal Wage Act.

    (820 ILCS 110/1) (from Ch. 48, par. 4a)
    Sec. 1.
    Any employer of 6 or more persons in this State engaged in the manufacture of any article, who shall pay any person engaged in such manufacture an unequal wage for equal work, by time or piece work, than is being paid to any other person employed in such manufacture, shall be guilty of a petty offense and shall be fined not less than $25 nor more than $100; provided, however, that nothing herein contained shall prohibit a variation in rates of pay based upon either difference in seniority, experience, training, skill or ability, or difference in duties or services performed (whether regularly or occasionally), or difference in availability for other operations, or any other reasonable classification, excepting difference in sex. Provided, further, that nothing herein contained shall prohibit such variation where the same is authorized by a contract between an employer and a recognized bargaining agent.
(Source: P. A. 78‑843.)

    (820 ILCS 110/2) (from Ch. 48, par. 4b)
    Sec. 2. Any action based upon or arising under this Act shall be instituted within six months after the date of the alleged violation.
(Source: Laws 1943, vol. 1, p. 743.)

    (820 ILCS 110/3) (from Ch. 48, par. 4c)
    Sec. 3. Short title. This Act may be cited as the Equal Wage Act.
(Source: P.A. 86‑1324)