A resignation letter should be written at least 30 days prior to the effective date of resignation. 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. Notice and record-keeping requirements. Every employer shall: 6. You are free to resign with thirty days notice. Check with the union and don't count on what I'm saying but the rule is give thirty days notice. Learn how to write a resignation letter with a notice period. If you elect to resign or retire from employment, we request that you provide at least two weeks advance notice of the intended separation date. I am resigning from the title in which I am currently serving and request to transfer my permanent civil service title to my new agency.