I am writing to inform you of my two weeks notice. Effective August 18th will be my last day.Learn how to write a professional two weeks notice letter with our easytouse template. How to Use Two Weeks Notice Letter? There are no laws I am aware of in the US that oblige you to provide a full two weeks notice. I'm happy to assist you with your question today. I am writing to notify you that I am resigning from my position as. There are no laws I am aware of in the US that oblige you to provide a full two weeks notice. You want to give at least a two weeks' notice. Check your employee handbook – there's probably a policy in there that addresses giving notice to resign.