Michigan Compiled Laws, Chapter 123. Local Government § 123.1173

Sec. 13. (1) An authority may levy a tax of not more than 0.2 mills for a period of not more than 20 years on all of the taxable property within the county for the purpose of providing revenue to an accredited zoological institution that is an accredited zoological institution as of the date of the electors' approval of the levy. The authority may levy the tax only if a majority of the electors in the county voting on the tax at a statewide general or primary election approve the tax. The proposal for a tax shall be submitted to a vote of the electors of the authority by resolution of the board.

(2) A ballot proposal for a tax shall comply with the requirements of section 24f of the general property tax act, 1893 PA 206, MCL 211.24f. A proposal for a tax shall not be placed on the ballot unless the proposal is adopted by a resolution of the board and certified by the board not later than 60 days before the election to the county clerk of the county for inclusion on the ballot. The proposal shall be certified for inclusion on the ballot at the next eligible election, as specified by the board's resolution.

(3) If a majority of the electors in the county voting on the question of a tax approve the proposal as provided under subsection (1), the tax levy is authorized. Not more than 2 elections may be held in a calendar year on a proposal for a tax authorized under this act.