Large corporations that lay off more than 50 employees within a 30-day period must notify the employees or their union representatives at least 60 days before the layoffs occur, according to the U.S. Department of Labor. This law applies to employers with more than 100 employees.
Employers must reveal whether the layoff is temporary or permanent, and they must disclose the closing of an entire plant. Corporations also must notify the chief elected officials of the municipalities where the layoffs occur. These requirements are part of the Worker Adjustment and Retraining Notification Act, and the rules don’t apply to corporations that close due to failure or natural disaster, the U.S. Department of Labor notes.