Michigan Compiled Laws, Chapter 141. Municipal Financing § 141.52

Sec. 2. Whenever the board of supervisors of any county shall by resolution vote in favor of levying a tax to create a sinking fund as provided in section 1 of this act,  1 the question of levying such tax shall be submitted to the electors of the county at the general November election, the annual spring election, or at any special election called for that purpose, subsequent to the passage of such resolution by the board of supervisors. A copy of such resolution shall be served upon the sheriff of the county by the county clerk. It shall be the duty of the sheriff at least 20 days prior to the date of the election, at which such question shall be submitted to the electors, to cause to be delivered to the township clerk in each township, and to the city clerk in each city in his county, a notice in writing that at such election there will be submitted to the electors of such county the question of raising the amount prescribed in the resolution passed by the board of supervisors, and to cause the same to be published in 1 or more newspapers printed and circulating in said county, if one be printed and circulated therein, at least once during each of 2 consecutive weeks before said election.