Rule 7. On the waters of C.S. Mott lake, sections 10 to 13, 15, 16 and 21, town 8 north, range 7 east, Genesee township, Genesee county, it is unlawful for the operator of a vessel to exceed a slow-no wake speed or tow or otherwise assist in the propulsion of a person on water skis, water sled, surfboard or other similar contrivance, except that an authorized law enforcement officer acting in his official capacity may exceed a slow-no wake speed.
Mich. Admin. Code R. 281.725.7