Per Dallas ISD Policy, all exiting employees are required to submit an official Notice of Separation (S54 Form). The process to resign is the same for employees on leave.You must complete and submit a Notice of Separation via Oracle. I will go over a step-by-step resignation template letter you can use, how to structure it and provide examples of resignation letters. This job aid describes the process for submitting your resignation letter. In the opening paragraph, clearly state that you are resigning from your position. You want to give at least a two weeks' notice.