Mich. Comp. Laws § 168.312

Sec. 312. (1) A school board may submit a ballot question to the school electors on a regular election date, on a date when a city or township within the school district's jurisdiction is holding an election by adopting a resolution to that effect not later than 4 p.m. on the twelfth Tuesday before the election date, or on a special election date as provided in section 641(4). The school board shall certify the ballot question language to the school district election coordinator not later than 4 p.m. on the twelfth Tuesday before the election date. The school district election coordinator shall send a copy of the ballot question language to the county clerk of each county not less than 82 days before the election. (2) If a special election is called on a date provided under section 641(4), the school district election coordinating committee shall schedule the special election date.