Final answer:
Employers with more than 100 employees must be given a 60-day written notice from a union to renegotiate a contract, especially in the event of plant closings or large layoffs. Individual contracts might stipulate different notification periods, commonly two weeks, and lease agreements typically require a 30-day notice.
Step-by-step explanation:
If a union wishes to renegotiate a contract with an employer, for instance in cases of plant closings or large layoffs, regulations require that the employer be given a formal notification in advance. According to the specified guidelines, employers with more than 100 employees must provide written notice 60 days before plant closings or large layoffs. This mandatory notice period is designed to allow sufficient time for employees to prepare for the upcoming changes and for both parties to negotiate any new terms if necessary.
When it comes to individual employment terms, it is a common practice to provide at least two weeks of notice, but you should always check your contract to see if you are required to give a longer notice period. In lease agreements, either party may terminate the agreement with a 30-day written notice. Hence, the specifics of the notification period can vary based on the contract and the laws that apply to the situation.