Learn how to write a resignation letter (and what not to include) and then use our example letters as a guide. How to Use Two Weeks Notice Letter?You didn't resign, so why would you write a resignation letter? They don't want you to be able to claim unemployment. Regardless of the reason for separation, employers must complete form DOL800. You can work 12 hours and cite safety, fill out form 1767. Also there's no 2 weeks notice requirement at the post office. ✓ Employee completes reason for separation (check one). Being late once, a personality clash or a simple mistake are all legally acceptable reasons to terminate an employee in the eyes of the law. Add contact details, company name, and date.