The contract can be terminated by either party with three months' notice.

合同的任何一方如提前三个月通知，均可终止本合同。

《牛津词典》

Notice that the connector between the producer and seller parts has no contract.

请注意，生产者和销售者部分之间的连接器没有契约。

youdao

If you are currently under contract or working in a probationary period, you may have the responsibility to provide a certain amount of notice.

如果你是合同工或者在试用期，你可能有责任提供那么一些预先的通知。

youdao

First, the NHL would de-register the contract and give notice to the NHLPA. The NHLPA would then have until 5:00 p.m. the following day to dispute the decision in writing (or five days if they are notified between July 1 and seven days prior to the start of the regular season).

FORBES: Understanding Subsequent Challenges To NHL Contracts

The CPE says that after the first month employers have to give two weeks' notice for severance of contract, and after six months the notice period is extended to one month.

BBC: NEWS | Europe | Q&A: French labour law row

In June 2011, the council wrote to her giving her fresh notice of termination of her contract, with effect from September 2011.

BBC: Baby P boss Sharon Shoesmith returns to court