Looking to resign with a One Month Notice Resignation Letter? Use our resignation letter template for notice-period roles.Authority requires a longer period of notice or consents to the employee's terminating on shorter notice) is a resignation in good standing. In this article, we discuss how to create a 30day resignation letter, why it's important and provide a template and examples to help you write your own. While employees often give two weeks notice as a courtesy, there is no law requiring you to give any notice. Within one work day, provide a copy of the constructive resignation letter to the employee's union, as authorized. 23.3 Effective Resignation. State that you are resigning and when your last day will be.