Michigan Compiled Laws, Chapter 46. County Boards of Commissioners § 46.10b

Sec. 10b. (1) Except for an ordinance described in subsection (2) or (3), the violation of an ordinance adopted pursuant to section 11(j) 1 shall be punishable by a fine of not more than $500.00 or imprisonment for not more than 90 days, or both.

(2) Consistent with 1945 PA 58, MCL 46.201, the county board of commissioners may adopt an ordinance that designates a violation of the ordinance as a civil infraction and provides a civil fine for that violation.

(3) The county board of commissioners may adopt an ordinance that designates a violation of the ordinance as a municipal civil infraction and provides a civil fine for that violation. An ordinance may not designate a violation as a municipal civil infraction if that violation may be designated as a civil infraction under subsection (2). A statute may provide that a violation of a specific type of ordinance is a municipal civil infraction whether or not the ordinance designates the violation as a municipal civil infraction.

(4) An ordinance shall not make an act or omission a municipal civil infraction if that act or omission constitutes a crime under any of the following: