Final answer:
Employers must respond to the notice of hearing within the specified timeframe.
Step-by-step explanation:
Under the Worker Adjustment and Retraining Notification Act (WARN Act), employers with more than 100 employees are required to provide written notice 60 days before plant closings or large layoffs. This notice must be given to affected employees or their representatives, state dislocated worker units, and the local government. It is important for employers to respond to the notice of hearing within the specified timeframe in order to comply with the law.