Both Illinois and the federal government have laws that require employers to provide advance notice of certain changes in business operations. Where a provision of the Illinois Worker Adjustment & Retraining Notification Act (IWARN) is more restrictive than the federal Worker Adjustment and Retraining Notification Act (WARN), the Illinois rule will govern and vice versa.
The following table highlights several of the more significant features of these laws. It does not address the numerous technical provisions or fully detail the complex, fact-specific exemptions expressed in the federal and state laws.
