Give notice immediately and give them 3 weeks. If they want to ef around with your vacation, you can say that it's take it or leave it for you.There's also the option to turn your "2 weeks notice" into a "3 weeks notice": state your intention to leave 2 weeks before your PTO starts. In this article, we explain what a resignation letter is, why they're important, provide steps for writing it, and give you a template and examples. Employees may submit paid time off (PTO) requests after they've given two weeks' notice, but employers can legally deny those requests. Below you'll find tips for writing a standard resignation letter, as well as sample letters and emails you can use as you write your own. Important information for employees who are retiring or resigning from MCPS. If you are resigning from MCPS. Notice of Resignation. An employee should submit a written resignation to the Fire Chief 2 weeks before the effective date of the resignation.