Final answer:
Employers with more than 100 employees must provide 60 days' notice before plant closings or significant layoffs, while property leases generally require a 30-day written notice to terminate.
Step-by-step explanation:
The notice period required for non-payment of premium or for ending a lease agreement or employment may vary depending on specific laws and the terms of the agreement. In the context of employment, employers with more than 100 employees are generally required to give at least 60 days' notice before plant closings or significant layoffs, as per the Worker Adjustment and Retraining Notification (WARN) Act. On the other hand, in the context of property leasing, a lease agreement often requires either party to provide a 30-day written notice to terminate the lease after the expiration of the original leasing period. It's important to note that such notice must be given in writing and should comply with any legal requirements for 'just cause' where applicable.