The short answer is that an atwill employee is not required to provide two weeks' notice before quitting. If you have an offer from another firm and can start immediately, is it appropriate to hand in a resignation letter without providing two weeks' notice?This is why a two week notice is no longer a necessary courtesy. Download Arizona Immediate Letter Of Resignation template, modify and send for signing using BoloForms Signature. 2 weeks notice isn't actually required to leave a job, it's only a nicety. It's time to quit the job, and you're not giving two weeks' notice. Here's how to politely write a resignation letter, effective immediately.