The short answer is that an atwill employee is not required to provide two weeks' notice before quitting. Write a TwoWeek Notice Letter.A common misconception is that two weeks' notice is a legal requirement. There is no federal or Arizona law that makes this a requirement. Giving a two-week notice letter is a professional way to inform your employer that you intend to resign from your current position. Start with a two weeks notice letter. This will serve as a formal, written documentation of your intent to leave and your transition timeline. I am writing to inform you of my two weeks notice. Effective August 18th will be my last day. State your resignation and provide the effective date.