Michigan Compiled Laws, Chapter 324. Natural Resources and Environmental Protection § 324.8517

Sec. 8517. (1) Except as otherwise provided in this section, this part preempts any local ordinance, regulation, or resolution that would duplicate, extend, or revise in any manner the provisions of this part. Except as otherwise provided for in this section, a local unit of government shall not adopt, maintain, or enforce an ordinance, regulation, or resolution that contradicts or conflicts in any manner with this part.

(2) If a local unit of government is under contract with the department to act as its agent or the local unit of government has received prior written authorization from the department, that local unit of government may adopt an ordinance that is identical to this part and rules promulgated under this part, except as prohibited in subsection (6). The local unit of government's enforcement response for a violation of the ordinance that involves the manufacturing, storage, distribution, sale, or agricultural use of products regulated by this part is limited to issuing a cease and desist order in the manner prescribed in section 8511.  1

(3) A local unit of government may adopt an ordinance prescribing standards different from those contained in this part and rules promulgated under this part and that regulates the manufacturing, storage, distribution, sale, or agricultural use of a product regulated by this part only under either or both of the following circumstances:

(4) An ordinance adopted under subsection (2) or (3) shall not conflict with existing state laws or federal laws. An ordinance adopted under subsection (3) shall not be enforced by a local unit of government until approved by the commission of agriculture. The commission of agriculture shall provide a detailed explanation of the basis of a denial within 60 days.

(5) Within 60 days after the legislative body of a local unit of government submits to the department a resolution identifying unreasonable adverse effects on the environment or public health as provided for in subsection (3)(a), the department shall hold a local public meeting to determine the nature and extent of unreasonable adverse effects on the environment or public health due to the manufacturing, storage, distribution, sale, or agricultural use of a product regulated by this part. Within 30 days after the local public meeting, the department shall issue a detailed opinion regarding the existence of unreasonable adverse effects on the environment or public health as identified by the resolution of the local unit of government.

(6) The director may contract with a local unit of government to act as its agent for the purpose of enforcing this part and the rules promulgated under this part. The department has sole authority to assess fees, register fertilizer or soil conditioner products, cancel or suspend registrations, and administer and enforce provisions of section 8512.  2

(7) A local unit of government that adopts an ordinance under subsection (2) or (3) shall require persons enforcing the ordinance to comply with training and enforcement requirements determined appropriate by the director.

(8) Subsection (1) does not prohibit the maintenance or enforcement of an ordinance that regulates or prohibits the application to turf of fertilizer containing the plant nutrient available phosphate (P₂O₅), but only if the ordinance was in effect on the enactment date of the amendatory act that added this subsection.  3