Directors are under no obligation to give prior notice of their resignation, whether such be in their own best interests or that of the company. Prepare a written, dated, signed resignation letter that indicates the effective date of your resignation.An oral resignation is insufficient. A director should submit a written resignation letter that notes the effective date of their departure. All applicants must file an application questionnaire, with supporting documentation. Only complete applications will be accepted for filing. Submit the Withdrawal of Resignation form with a copy of your nomination letter to Field Services. The board will then need to formally accept the resignation at a board meeting. The formal acceptance should be documented in the meeting minutes. MTA Chief Jay Walder resigned today to head an even larger international transportation company.