There is no specific law requiring notice to your employer if you choose to quit or leave your job. New York is an "at-will employment" state.Since there is no New York state law two weeks notice requirement, employers do not have to guarantee employment to their workers. Are you getting ready to leave your job? Here's how to write a professional two weeks' notice resignation letter, with examples. I am writing to inform you of my two weeks notice. Effective August 18th will be my last day. A resignation letter should be written at least 30 days prior to the effective date of resignation. A comprehensive guide on how to write a 2week notice letter of resignation that will ensure a smooth transition for you and your employer.