We've rounded up tips and examples for writing a resignation letter that'll help you maintain work relationships long after leaving a company. Dear Sirs: Effective immediately, I am not a member of UFCW Local 99.Simply state something like "Effective this dste, consider this my two week's notice. My last day will be September 1. Download Arizona Immediate Letter Of Resignation template, modify and send for signing using BoloForms Signature. State your resignation and provide the effective date. However, in other situations, employers can regard notice of resignation effective from the date they receive the letter. Arizona Board Resignation Letter Template.