Michigan Compiled Laws, Chapter 201. Vacancies in Office § 201.91

Sec. 1. (1) If a vacancy occurs in any public office, and the vacancy may be filled by appointment by the governor or otherwise, notice of that vacancy and of the facts why the vacancy exists, shall, within 10 days after the vacancy occurs, be given in writing to the officer, board or body, having power to fill the vacancy by appointment.The notice shall be given as follows:

(2) If a vacancy occurs in an office the salary for which is paid in whole or part from the state treasury, the officer, board, or body having the appointing power shall immediately after receiving notice of the vacancy notify the state treasurer of that vacancy.