Mich. Comp. Laws § 141.20
Approval of act by supervisors.
Sec. 10.
Before this act shall be operative in any county in this state it shall be adopted by a 2/3 vote of the board of supervisors regularly convened at any regular, adjourned or special meeting of said board of supervisors for that particular county.
History: 1913, Act 42, Eff. Aug. 14, 1913; CL 1915, 2395; CL 1929, 1244; CL 1948, 141.20