Compiled Laws, Chapter 168. Michigan Election Law § 168.648

Sec. 648. The secretary of state, at least 60 days and not more than 90 days preceding any regular state or district primary or election, shall send to the county clerk of each county a notice in writing of such primary or election, specifying in such notice the federal, state and district offices for which candidates are to be nominated or elected, as well as any constitutional amendments and questions to be submitted thereat.