Negligent Operation (46 USC 2302 (a) (b)) Federal law prohibits the negligent or grossly negligent operation of a vessel and/or interference with the safe operation of a vessel so as to endanger lives and/or property . The U .S . Coast Guard may impose a civil penalty for negligent operation . Grossly negligent operation is a criminal offense and an operator may be fined up to $5,000, imprisoned for one year, or both . Some actions that may constitute negligent or grossly negligent operation are: ? Operating a boat in a designated swimming area . ? Excessive speed in the vicinity of other boats or in regulated waters . ? Hazardous water skiing or other water sports practices . ? Bowriding, or riding on seatback, gunwale, or transom . ? Operating a boat while under the influence of alcohol or drugs
This is the only federal regulation I can find related to seats.
Your local laws may vary.
Common side effect may include headaches, neck pain, numbness of the legs and buttox, Additionally Wise arse comments may cause a lightening of the wallet.