Illinois Department of Labor  
Director of Labor name Catherine M Shannon

Rod R. Blagojevich, Governor

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Equal Pay Act of 2003

The Equal Pay Act of 2003 prohibits employers with four or more employees from paying unequal wages to men and women for doing the same or substantially similar work, requiring equal skill, effort, and responsibility, under similar working conditions for the same employer in the same county, except if the wage difference is based upon a seniority system, a merit system, a system measuring earnings by quantity or quality of production, or factors other than gender.
Contact Number(s):
Information: (312) 793-6797
Toll Free HOTLINE: (866) EPA-IDOL (866-372-4365)
Forms/Links:
Forms are in Adobe PDF format
See the law, 820 ILCS 112/1-90 (Legislative Website)
Administrative Code, 56 Ill. Adm. Code 320
Complaint Form
Complaint Form Instructions
EPA Factsheet
EPA Brochure (English) (Español)
New Required Poster (474K .PDF) (English) (Español)
Other Required Posters
U.S. Equal Employment Opportunity Commission (External Website)
Business and Professional Women/USA (External Website)
Institute for Women’s Policy Research (External Website)
National Committee on Pay Equity (External Website)
The WAGE Project (External Website)
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