POL Government Elected Officials Auditor Mary Hull Caballero Charter, Code & Policies City Code & Charter Online Code & Charter Title 19 Chapter 19.16  Rules And Regulations
19.16.235 Care and Use of Boats.

It is unlawful for any person to operate any vessel in the harbor in such a manner as to jeopardize the same or to endanger life or property.  When any power craft of less than 15 tons net burden is proceeding in such a manner that it is endangering any canoe, rowboat, skiff, or other watercraft, it shall be the duty of the person in charge of such power craft to reduce the speed, stop, or reverse as the case may be, to remove the danger to such watercraft or to refrain from willfully frightening the occupants thereof.