How to write a resignation letter that's effective immediately? You're not entitled to any notice period, unfortunately; your employer can terminate you at any time.34-28-5. Separation from payroll -- Resignation -- Cessation because of industrial dispute. An employer satisfies the 24-hour time requirement. In an atwill employment state, employees may also quit without "just cause" or without warning if they so choose. 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. There are no federal or state laws that require an employee to provide two weeks' notice to his or her employer before quitting. Utah is an "atwill" employment state. No state or federal law requires you to notify your boss two weeks before leaving your job. If you're an at-will employee, you can leave at any time.