Rule 1. On the waters of Ann lake, Benzie county, state of Michigan, no operator of any motorboat, shall have in tow, or shall otherwise be assisting in the propulsion of, a person on water skis, water sled, surfboard, or other similar contrivance during the period from 6:30 p.m. to 10:00 a.m. of the following day.
Mich. Admin. Code R. 281.710.1