Employee Classification Complaints
Employee Classification Complaint Form and Employee Classification Act (ECA)
Mail the ECA form to the following address:
ILLINOIS DEPARTMENT OF LABOR
900 South Spring Street
Springfield, Illinois 62704-2725
Individuals performing services for a construction contractor are presumed to be employees of the contractor unless they meet the criteria specified in section 10 of the Employee Classification Act.Contact number(s) - IDOL/Employee Classification information: (217) 782-1710.