Add contact details, company name, and date. Please accept my resignation from my position with the Alameda County General Services Agency for the reasons stated above.Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. The purpose of this Administrative Instruction is to establish and clarify procedures regarding. You must provide a letter of resignation to your HR department before you can retire. Last Name: I would like to inform you that I am resigning from my position as Account Executive for the Smith Agency, effective August 1. This is a reinstatement, transfer or voluntary demotion opportunity for current and former regularly appointed employees of Alameda County. Reinstatement: Resignation Letter Sample.