Section R. 247.711 - Zoning areasRule 11.
(1) Zoning shall be in accordance with procedures established by state law.(2) The status of an unzoned commercial or industrial area, or a zoned business area beyond 1 mile of the corporate limits, shall remain unchanged for a period of 3 years after the businesses creating the commercial or industrial area have closed operations. During the period when a commercial or industrial business is not in operation, additional signs shall not be allowed within the area.(3) In determining unzoned commercial or industrial areas, activities related to agriculture or forestry such as nurseries, greenhouses, storage facilities, portable sawmills, natural resource extraction operations normally located in agricultural or forest areas such as unmanned oil wells and storage areas, earth borrow areas lacking permanent processing equipment, as well as unmanned public utility structures or operations shall not be considered commercial or industrial.Mich. Admin. Code R. 247.711