Ohio Revised Code Title XV. Conservation of Natural Resources § 1547.22

No occupant of any vessel underway on the waters in this state shall sit, stand, or walk upon any portion of the vessel not specifically designed for that movement, except when immediately necessary for the safe and reasonable navigation or operation of the vessel. No operator of a vessel under way on the waters in this state shall allow any occupant of the vessel to sit, stand, or walk on any portion of the vessel underway not specifically designed for that use, except when immediately necessary for the safe and reasonable navigation or operation of the vessel.

No person shall operate or permit to be operated any vessel on the waters in this state in violation of this section.