Rule 1. On the waters of the Kawkawlin river, section 1, town 1 4 north, range 4 east; sections 4, 5, and 6, town 14 north, range 5 east; section 36, town 15 north, range 4 east; and section 33, town 15 north, range 5 east, townships of Bangor, Kawkawlin and Monitor, county of Bay, state of Michigan, from the highway bridge at state highway M-13 downstream and 300 feet in any direction from the mouth of the river in Saginaw bay, no operator of any motorboat shall exceed a slow-no wake speed, which means a speed whereby the wake or wash created by the motorboat would be minimal.
Mich. Admin. Code R. 281.709.1