Who is covered by the warn act?

The WARN Act requires employers with 100 or more full-time employees (not counting workers who have fewer than 6 months on the job) to provide at least 60 calendar days advance written notice of a worksite closing affecting 50 or more employees, or a mass layoff affecting at least 50 employeesand 1/3 of the worksite’s total workforce or 500 or more employees at the single site of employment during any 90-day period.

Not all dislocations require a 60-day notice; the WARN Act makes certain exceptions to the requirements when employers can show that layoffs or worksite closings occur due to faltering companies, unforeseen business circumstances, and natural disasters. In such instances, the WARN Act requires employers to provide as much notice to their employees as possible.