By Brad Nakase, Attorney. In the opening paragraph, state that you are informing your employer that you will resign from your job in two weeks.Looking to resign from your job? Learn how to write a professional and respectful two weeks' notice email with our helpful templates and tips. No legal requirement in any state to provide 2 weeks' notice but it is a preferred business practice, a courtesy to the employer to help with any transition. Although a twoweek notice is standard, your employer will appreciate having more time to plan for your departure. California's AtWill Employment Law Does Not Require 2 Weeks' Notice. California is an at-will employment state. In this article, we explain how to construct a formal resignation letter as well as provide an example to help you write your own. It should be short and factual, and most importantly, should not be negative.