How to write a resignation letter that's effective immediately? Please accept this letter as a notice of my resignation.Learn how to write a short notice resignation letter with this stepbystep guide, template and examples of formal resignation. Start with a two weeks notice letter. This will serve as a formal, written documentation of your intent to leave and your transition timeline. Learn how to write an immediate resignation letter with our comprehensive guide, including tips, examples, and a customizable template. I am writing to formally inform you of my decision to resign from my position at Wilson Co. as Sales Manager. Schedule a meeting with your boss ASAP so you can get it done. Set up enough time to resign and review your transition plan and any other outstanding issues. A civil service system generally means employment in government with such positions filled on merit as a result of a competitive examination or screening.