Mich. Comp. Laws § 123.1389: Regulation of hours and scheduling provided by employer to employees; regulation by local governmental body prohibited.

Sec. 9.

A local governmental body shall not adopt, enforce, or administer an ordinance, local policy, or local resolution regulating hours and scheduling that an employer is required to provide to employees. This section does not prohibit an ordinance, local policy, or local resolution that limits the hours a business may operate.