WARN requires employers who are planning a plant closing or a mass
layoff to give affected employees at least 60 days' notice of such an
employment action. While the 60-day period is the minimum for advance
notice, this provision is not intended to discourage employers from
voluntarily providing longer periods of advance notice. Not all plant
closings and layoffs are subject to the Act, and certain employment
thresholds must be reached before the Act applies. WARN sets out
specific exemptions, and provides for a reduction in the notification
period in particular circumstances. Damages and civil penalties can be
assessed against employers who violate the Act.