Local regulation prohibited.

Mich. Comp. Laws § 324.3905, under NATURAL RESOURCES AND ENVIRONMENTAL PROTECTION ACT.

Mich. Comp. Laws § 324.3905

Sec. 3905. A local unit of government shall not enact or enforce an existing or future ordinance or rule with respect to the sale of cleaning agents containing phosphorus or any other substance that is or may be regulated under this part.