Rule 12. On the waters of the Kalamazoo river, village of Douglas, Allegan county, from the Blue Star bridge upstream to a point where Center street, as extended, intersects the water's edge, thence northeast (045o true) to where that line intersects with the village limits, it is unlawful for the operator of a vessel to exceed a slow-no wake speed.
Mich. Admin. Code R. 281.703.12