How to write a resignation letter that's effective immediately? In this article, we cover everything you need to know about writing a resignation letter without notice and provide an example to get you started.Use this resignation letter example to inform your employer that you need to resign immediately and will not be able to give two weeks' notice. This resignation letter sample provides your employer with a letter for your file and also suggests that you've done everything you can to remain professional. An employee absent for two or more scheduled work days without notice, permission or without good reason will be considered as having resigned. a. Explore why a good resignation letter is important and how to write it, and check out our free resignation letter examples. Start with a two weeks notice letter. This will serve as a formal, written documentation of your intent to leave and your transition timeline. To return to an incomplete application, log into your USA JOBS account and click Update Application in the vacancy announcement. Job Description: The Registered Radiology Technologist performs medical imaging examinations under the direction of a physician.